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Specifications
Circuit Description
Parts List
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Adjustment
Schematic Diagram
Block Diagram
ALINCO, INC.
Service Manual DJ-175
SPECIFICATIONS DJ-175 <GRNERAL>
T:
E:
TFH:
TX 144 ~ 147.995MHz RX 136 ~ 173.995MHz TX 144 ~ 145.995MHz RX 144 ~ 145.995MHz TX 136 ~ 173.995MHz RX 136 ~ 173.995MHz
*144 ~ 147.995MHz *144 ~ 147.995MHz *144 ~ 145.995MHz *144 ~ 145.995MHz *150 ~ 173.995MHz *150 ~ 173.995MHz
Frequency range:
Modulation: Channel steps: Memory channels: Antenna impedance: Frequency stability: Microphone impedance: Power supply: Current drain (Approx.): Temperature range: Ground: Dimension: Weight: DTMF: Subaudible Tone (CTCSS): Digital Code SQ. (DCS):
* Guaranteed range per specifications F3E (FM), F2D* *T/E models only 5, 10, 12.5, 20, 25 & 30KHz 200 channels + 1 CALL channel + 1 Repeater-Access function memory 50Ω unbalanced +/- 2.5ppm 2k ohm nominal 7.2V/ 7.4V (Battery only) 1.5A Transmit high at 5W 250mA Receive at 500mW 70mA Stand-by 30mA Battery save on -10 ~ +45°C (+14 ~ 113°F) Negative ground 58(W) x 107.5(H) x 36.3(D) mm 2.28(W) x 4.23(H) x 1.43(D) inches Approx. 245g/ 8.7oz with EBP-72 & antenna 16 Buttons Keypad encode/ decode 39 tones encode/ decode 104 codes
<TRANSMITTER> Output power (Approx.): Modulation Max. deviation
Spurious emission
5W (High)/ 2W (Middle)/ 0.5W (Low) Variable reactance frequency modulation ±5KHz (±2.5KHz)** –60dB or less
<RECEIVER> Receive system Intermediate frequencies Sensitivity (12dB SINAD) Selectivity
Audio output power
Double conversion superheterodyne 1st: 21.7MHz / 2nd: 450KHz -14dBµ (0.2µV) -6dB: 12KHz or more/ -60dB: 26KHz or less (-6dB: 6KHz or more/ -60dB: 14KHz or less)** 500mW (8Ω, MAX) 400mW (8Ω, 10% THD)
**Narrow FM models are available depending on areas of distribution.
CIRCUIT DESCRIPTION 1) Receiver System
The receiver system is a double superheterodyne system with a 21.7MHz first IF and a 450kHz second IF.
1.Front End
The received signal at frequency in the 136~173.995MHz (E version: 144~145.995MHz) range is passed through the low-pass filter (L101, L102, L104, L118, C101, 108, C109, C110, C117, C118, C119, C123, C124, C125, C126, C127, and C188) and tuning circuit (C255, C256, C257, C258, D120, L138, and L139) and amplified by the RF amplifier (Q119). The signal from Q119 is then passed through the tuning circuit (C242, C243, C244, C245, C269, C270, C271, D117, D118, D119, L135, L136, and L137) and converted into 21.7MHz by the mixer (Q118). The tuning circuit, which consists of L139, L135, L136, varicaps D117, D118, D119, and D120 is controlled by the tracking voltage from the CPU so that it is optimized for the reception frequency. The local signal from the VCO is passed through the buffer (Q115), and supplied to the source of the mixer (Q118). The radio uses the lower side of the superheterodyne system.
2. IF Circuit The mixer mixes the received signal with the local signal to obtain the sum of and difference between them. The crystal filter (FL101, and FL102) selects 21.7MHz frequency from the results and eliminates the signal of the unwanted frequencies. The first IF amplifier (Q121) then amplifies the signal of the selected frequency.
3. Demodulator Circuit After the signal is amplified by the first IF amplifier (Q121), it is input to pin 16 of the demodulator IC (IC103). The second local signal of 21.25MHz (shared with PLL IC reference oscillation), which is oscillated by the TCXO (X102). Then, these two signals are mixed by the internal mixer in IC103 and the result is converted into the second IF signal with a frequency of 450kHz. The second IF signal is output from pin 3 of IC103 to the ceramic filter (FL103), where the unwanted frequency band of that signal is eliminated, and the resulting signal is sent back to the IC103 through pin 5. The second IF signal input via pin 5 is demodulated by the internal limiter amplifier and quadrature detection circuit in IC103, and output as an audio signal through pin 9.
4. Audio Circuit The audio signal from pin 9 of IC103 is amplified by the AF amplifier (Q120). The signal is then input to pin 16 of the electronic volume (IC105) for volume adjustment, and output from pin 14. The adjusted signal is sent to the audio power amplifier (IC104) through pin 2 to drive the speaker.
5. Squelch Circuit The signal except for the noise component in AF signal of IC103 is cut by the active filter inside IC. The noise component is amplified and rectified, then converted to the DC voltage to output from pin 14 of IC103. The voltage is led to pin 2 of CPU and compared with the setting voltage. The squelch will open if the input voltage is lower than the setting voltage.
2) Transmitter System
1. Modulator Circuit
The audio signal is converted to an electric signal in either the internal or external microphone, and input to the microphone amplifier (IC110). IC110 consists of two operational amplifiers; one amplifier (pins 12, 13, and 14) is composed of pre-emphasis and IDC circuits and the other (pins 5, 6, 7, 8, 9, and 10) is composed of a splatter filter. The maximum frequency deviation is obtained by IC105 and input to the cathode of the varicap of the VCO, to change the electric capacity in the oscillation circuit. This produces the frequency modulation.
2. Power Amplifier Circuit
The transmitted signal is oscillated by the VCO, amplified by the pre-drive amplifier (Q101) and drive amplifier (Q106), and input to the final amplifier (Q105). The signal is then amplified by the final amplifier (Q105) and led to the antenna switch (D101) and low-pass filter (L104, L102, L101, C119, C118, C117, C127, C126, C125, C124, C108, and C101), where un-wanted high harmonic waves are reduced as needed, and the resulting signal is supplied to the antenna.
3. APC Circuit
Part of the transmission power from the low-pass filter is detected by D108, converted to DC, and then amplified by a amplifier (IC101). The output voltage controls the bias voltage from the source of Q105 and Q106 to maintain the transmission power constant.
3) PLL Synthesizer System
1. PLL The dividing ratio is obtained by sending data from the CPU (IC113) to pin 10 and sending clock pulse to pin 9 of the PLL IC ( IC101 ). The oscillated signal from the VCO is amplified by the buffer (Q116) and input to pin 8 of IC102. Each programmable divider in IC102 divides the frequency of the input signal by N according to the frequency data, to generate a comparison frequency of 5 or 6.25kHz.
2. Reference Frequency Circuit
The reference frequency appropriate for the channel steps is obtained by dividing the 21.25MHz reference oscillation (X102) by 4250 or 3400, according to the data from the CPU (IC113). When the resulting frequency is 5kHz, channel steps of 5, 10, 15, 20, and 30kHz are used. When it is 6.25kHz, channel steps of 12.5, 25 , and 50kHz are used.
3. Phase Comparator Circuit The PLL (IC102) uses the reference frequency, 5 or 6.25kHz. The phase comparator in the IC102 compares the phase of the frequency from the VCO with that of the comparison frequency, 5 or 6.25kHz, which is obtained by the internal divider in IC102.
4. PLL Loop Filter Circuit If a phase difference is found in the phase comparison between the reference frequency and VCO output frequency, the charge pump output (pin 5) of IC102 generates a pulse signal, which is converted to DC voltage by the PLL loop filter and input to the varicap of the VCO unit for oscillation frequency control.
5. VCO Circuit A Colpitts oscillation circuit driven by Q108 directly oscillates the desires frequency. The frequency control voltage determined in the CPU (IC113) and PLL circuit is input to the varicaps (D105 and D107). This change the oscillation frequency, which is amplified by the VCO buffer (Q113) and output from the VCO unit.
4) CPU and Peripheral Circuits
1. LCD Display Circuit The CPU turns ON the LCD via segment and common terminals with 1/4 the duty and 1/3 the bias, at the frame frequency is 112.5Hz.
2. Display Lamp Circuit When the LAMP key is pressed, “L” is output form pin 67 of CPU ( IC113) to the bases of Q140. Q140 then turn ON and the LEDs (D128 and D129) light.
3. Reset and Backup When the power form the DC jack or external battery increases from Circuits 0V to 2.5 or more, “ H “ level reset signal is output form the reset IC (IC108) to pin 6 of the CPU (IC113), causing the CPU to reset. The reset signal, however, waits at 100, and does not enter the CPU until the CPU clock (X104) has stabilized.
4. S (Signal) Meter Circuit The DC potential of pin 12 of IC103 is input to pin 83 of the CPU (IC113), converted from an analog to a digital signal, and displayed as the S-meter signal on the LCD.
5. DTMF Encoder The CPU (IC113) is equipped with an internal DTMF encoder. The DTMF signal is output from pin 71, through IC112 (Low-pass filter), and then through the microphone amplifier (IC110), and is sent to the varicap of the VCO for modulation. At the same time, the monitoring tone passes through the AF circuit and is output form the speaker.
6. TONE Encoder
The CPU (IC113) is equipped with an internal tone encoder. The tone signal (67.0 to 250.3Hz ) is output from pin 70 of the CPU to the 21.25MHz reference oscillation (X102) of the PLL reference oscillator.
7. DCS Encoder The CPU (IC113) is equipped with an internal DCS code encoder. The code (023 to 754) is output from pin 70 of the CPU to the 21.25MHz reference oscillation (X102) of the PLL reference oscillator.
8. CTCSS, DCS Decoder The voice band of the AF output signal from pin 9 of IC103 is cut by sharp active filter IC111 and amplified, then led to pin 80 of CPU. The input signal is compared with the programmed tone frequency code in the CPU. The squelch will open when they match.
9. Clock Shift In the unlikely event that CPU clock noise is present on a particular operating frequency programmed into the radio, you can shift the CPU clock frequency to avoid the CPU clock-noise. The output signal from pin 8 of the CPU turns on Q127. Then the oscillation frequency of X104 will be shifted about 200 ppm.
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameC101 CU3535 GRM36B102K50PT C173C102 CU3535 GRM36B102K50PT C174C103 CU3519 GRM36CH470J50PT C175C104 CU3535 GRM36B102K50PT C176 CU3502 GRM36CK010C50PTC105 C177 CU3535 GRM36B102K50PTC108 CU3535 GRM36B102K50PT C178 CU3513 GRM36CH150J50PTC109 CU3512 GRM36CH120J50PT C179 CU3535 GRM36B102K50PTC110 CU3505 GRM36CH040C50PT C180 CU3515 GRM36CH220J50PTC111 CU3535 GRM36B102K50PT C181 CU0119 GRM21BB30J106KE18LC112 CU3520 GRM1552C1H560JD01D C182 CU3554 GRM36B104K10PTC113 CU3535 GRM36B102K50PT C183 CU3535 GRM36B102K50PTC114 CU3503 GRM36CK020C50PT C184 CU3547 GRM36B103K16PTC115 C185 CU3535 GRM36B102K50PTC116 CU3512 GRM36CH120J50PT C186C117 CU3513 GRM36CH150J50PT C187 CU3513 GRM36CH150J50PTC118 CU3513 GRM36CH150J50PT C188 CU3508 1005 CH 50V 7PF DC119 CU3513 GRM36CH150J50PT C189 CU3535 GRM36B102K50PTC120 C190C122 CU3559 GRM155B30J105KE18D C191 CU3137 GRM188B31C105KA92DC123 C192 CU3535 GRM36B102K50PTC124 CU3512 GRM36CH120J50PT C193 CU3514 GRM36CH180J50PTC125 CU3512 GRM36CH120J50PT C194 CU3554 GRM36B104K10PTC126 CU3513 GRM36CH150J50PT C195 CU3535 GRM36B102K50PTC127 CU3514 GRM36CH180J50PT C196 CU3502 GRM36CK010C50PTC129 CU3512 GRM36CH120J50PT C197 CU3527 GRM1552C1E221JD01DC130 CU3514 GRM36CH180J50PT T, E, EUK C198 CU3554 GRM36B104K10PTC131 CU3517 GRM36CH330J50PT C199 CU3515 GRM36CH220J50PTC132 CU3516 GRM36CH270J50PT C200 CU3554 GRM36B104K10PTC133 CU3517 GRM36CH330J50PT C201 CU3535 GRM36B102K50PTC134 CU3513 GRM36CH150J50PT C202 CU3547 GRM36B103K16PTC135 CU3513 GRM36CH150J50PT C203 CU3535 GRM36B102K50PTC136 CU3513 GRM36CH150J50PT C204 CU3535 GRM36B102K50PTC137 CU3535 GRM36B102K50PT C205 CS0396 20V 0.1UFC138 C206 CS0396 20V 0.1UFC139 C207 CU3547 GRM36B103K16PTC140 CU3554 GRM36B104K10PT C209 CU3515 GRM36CH220J50PT T, E, EUKC141 CU3535 GRM36B102K50PT C209 CU3514 GRM36CH180J50PT TFHC142 CU3502 GRM36CK010C50PT C210 CU3505 GRM36CH040C50PTC144 C211 CU3526 GRM1552C1E181JD01DC145 CU3535 GRM36B102K50PT C212 CU3528 GRM1552C1E271JD01DC146 CU3535 GRM36B102K50PT C213 CU3526 GRM1552C1E181JD01DC147 CU3506 GRM36CH050C50PT C214 CU3535 GRM36B102K50PTC149 CU3502 GRM36CK010C50PT C215 CU3554 GRM36B104K10PTC150 CU3502 GRM36CK010C50PT C216C151 CU3547 GRM36B103K16PT C219 CS0398 6.3V 2.2UFC152 CU3535 GRM36B102K50PT C220 CU3535 GRM36B102K50PTC153 C221 CU3535 GRM36B102K50PTC155 CU3535 GRM36B102K50PT C222 CU3535 GRM36B102K50PTC156 C223C157 CU3535 GRM36B102K50PT C224 CU3547 GRM36B103K16PTC158 CU3535 GRM36B102K50PT C225 CU3535 GRM36B102K50PTC159 CU3547 GRM36B103K16PT C226 CU3535 GRM36B102K50PTC160 CU3535 GRM36B102K50PT C227 CU3535 GRM36B102K50PTC161 CU3535 GRM36B102K50PT C228 CU3515 GRM36CH220J50PTC162 C229 CU3515 GRM36CH220J50PTC163 CU3535 GRM36B102K50PT C230 CU3512 GRM36CH120J50PTC164 CS0441 TMCMA0J226MTRF C231 CU0119 GRM21BB30J106KE18LC165 CU3535 GRM36B102K50PT C232 CU3535 GRM36B102K50PTC166 CU3513 GRM36CH150J50PT C233 CU3522 GRM1552C1H820JD01DC167 CU3523 GRM1552C1H101JZ01D C234 CU3547 GRM36B103K16PTC168 CU3502 GRM36CK010C50PT C235 CU3519 GRM36CH470J50PTC169 CU3502 GRM36CK010C50PT C236 CU3535 GRM36B102K50PTC171 CU3511 GRM36CH100D50PT C237 CU3547 GRM36B103K16PTC172 CU3535 GRM36B102K50PT C238 CU3539 GRM36B222K50PT
MAIN UNITParts List
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameC239 CU3547 GRM36B103K16PT C305 CU3138 GRM188B31C225KE14D T, E, EUKC240 CU3535 GRM36B102K50PT C306 CU3559 GRM155B30J105KE18DC241 CU3539 GRM36B222K50PT C307 CU3535 GRM36B102K50PTC242 CU3535 GRM36B102K50PT C308 CU3138 GRM188B31C225KE14DC243 CU3573 GRM1554C1HR80BZ01D C310 CU3137 GRM188B31C105KA92DC244 CU3573 GRM1554C1HR80BZ01D C311 CU3535 GRM36B102K50PTC245 CU3523 GRM1552C1H101JZ01D C312 CU3554 GRM36B104K10PT T, E, EUKC246 CU3554 GRM36B104K10PT C313 CU3137 GRM188B31C105KA92DC247 CU3554 GRM36B104K10PT C314 CU3547 GRM36B103K16PTC248 CU3559 GRM155B30J105KE18D C315 CU3547 GRM36B103K16PTC249 CU3537 GRM36B152K50PT C316 CU3554 GRM36B104K10PTC250 CU3537 GRM36B152K50PT C317 CU3517 GRM36CH330J50PTC252 CU3535 GRM36B102K50PT C318 CU3516 GRM36CH270J50PTC253 CU3543 GRM36B472K25PT C319C254 CU3549 1005 B 16V 0.015UF K C320 CU3535 GRM36B102K50PTC255 CU3535 GRM36B102K50PT C321 CU3535 GRM36B102K50PTC256 CU3516 GRM36CH270J50PT C322 CU3559 GRM155B30J105KE18DC257 CU3505 GRM36CH040C50PT C323 CU3535 GRM36B102K50PTC258 CU3523 GRM1552C1H101JZ01D C324 CU3559 GRM155B30J105KE18DC259 C325 CU3554 GRM36B104K10PTC260 CU3554 GRM36B104K10PT C326C261 CU3547 GRM36B103K16PT C327 CU3137 GRM188B31C105KA92DC262 CU3535 GRM36B102K50PT C328 CU3535 GRM36B102K50PTC263 CU3508 1005 CH 50V 7PF D T, E, TFH C329 CU3554 GRM36B104K10PTC263 CU3513 GRM36CH150J50PT EUK C330 CU3535 GRM36B102K50PTC264 CU3535 GRM36B102K50PT C331 CU0119 GRM21BB30J106KE18LC265 CE0436 16CE47BSS C332 CU3535 GRM36B102K50PTC266 CU3137 GRM188B31C105KA92D C333 CU3535 GRM36B102K50PTC267 CU3535 GRM36B102K50PT C334 CU0119 GRM21BB30J106KE18LC268 CU3535 GRM36B102K50PT C335 CU3540 GRM36B272K50PTC269 CU3523 GRM1552C1H101JZ01D C336 CU3523 GRM1552C1H101JZ01DC270 CU3523 GRM1552C1H101JZ01D C337 CU3535 GRM36B102K50PTC271 CU3523 GRM1552C1H101JZ01D C338 CU3137 GRM188B31C105KA92DC272 CU3535 GRM36B102K50PT C339 CU3137 GRM188B31C105KA92DC273 CU3547 GRM36B103K16PT C340 CU3535 GRM36B102K50PTC274 CU3554 GRM36B104K10PT C341 CU3547 GRM36B103K16PTC275 CU3535 GRM36B102K50PT C342 CU3547 GRM36B103K16PTC276 CU3523 GRM1552C1H101JZ01D C343 CU3554 GRM36B104K10PTC277 CU3535 GRM36B102K50PT C344 CU3554 GRM36B104K10PTC278 CU3523 GRM1552C1H101JZ01D C345 CU3554 GRM36B104K10PTC279 CU3547 GRM36B103K16PT C346 CU3547 GRM36B103K16PTC280 CS0441 TMCMA0J226MTRF C347 CU3523 GRM1552C1H101JZ01DC281 CU3535 GRM36B102K50PT C348 CU3547 GRM36B103K16PTC282 CU3554 GRM36B104K10PT C349 CU3539 GRM36B222K50PTC284 CU3559 GRM155B30J105KE18D C350 CU3533 GRM36B681K50PTC285 CU3554 GRM36B104K10PT C351C286 CU3527 GRM1552C1E221JD01D C352 CU3547 GRM36B103K16PTC287 CU3535 GRM36B102K50PT C353 CU3539 GRM36B222K50PTC288 CU3527 GRM1552C1E221JD01D C354 CU3541 GRM36B332K50PTC289 CU3535 GRM36B102K50PT C355 CU3547 GRM36B103K16PTC290 CU3554 GRM36B104K10PT C356 CU3535 GRM36B102K50PTC291 CU3138 GRM188B31C225KE14D C357 CU3535 GRM36B102K50PTC292 CE0436 16CE47BSS C358 CU0119 GRM21BB30J106KE18LC293 CU3554 GRM36B104K10PT C359 CU3553 GRM36B473K10PTC294 CU3535 GRM36B102K50PT C360 CU3559 GRM155B30J105KE18DC295 C361 CU3535 GRM36B102K50PTC296 CE0463 10CE100BSS C362 CU3533 GRM36B681K50PTC297 C363 CU3535 GRM36B102K50PTC298 CU3535 GRM36B102K50PT C364 CU3539 GRM36B222K50PTC299 CU3137 GRM188B31C105KA92D C365 CU3533 GRM36B681K50PTC300 CU3554 GRM36B104K10PT C366 CU3537 GRM36B152K50PTC301 CU3535 GRM36B102K50PT C367 CU3523 GRM1552C1H101JZ01DC302 CE0462 6CE100BSS C368 CU3531 GRM36B471K50PTC303 CU3535 GRM36B102K50PT C369 CU3541 GRM36B332K50PTC304 CU3554 GRM36B104K10PT C370 CU3554 GRM36B104K10PT
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameC371 CU3535 GRM36B102K50PT D130 XD0418 RB521S-30TE61C372 CU3559 GRM155B30J105KE18D FL101 XF0059 Q21707AD27-21.7MHZ EUKC373 FL101 XF0051 Q2175AD20 21.7MHZ T, E, TFHC375 CU3541 GRM36B332K50PT FL102 XF0059 Q21707AD27-21.7MHZ EUKC376 CU3554 GRM36B104K10PT FL102 XF0051 Q2175AD20 21.7MHZ T, E, TFHC377 CU3554 GRM36B104K10PT FL103 XC0052 ALFYM450G=K EUKC378 FL103 XC0060 ALFYM450F=K T, E, TFHC379 CU3535 GRM36B102K50PT IC101 XA1103 LM2904PWRC380 CU3535 GRM36B102K50PT IC102 XA1107 MB15E07SRPFTGBNDEFE1C381 CU3535 GRM36B102K50PT IC103 XA0404 TA31136FNG(EL)C382 CS0439 TMCMA0J476MF IC104 XA0210 IC NJM2070MC383 CU3535 GRM36B102K50PT IC105 XA1293 M62364FP#DF1GC384 CU3535 GRM36B102K50PT IC106 XA1119 XC6202P502MRC385 CU3535 GRM36B102K50PT IC107 XA0617 TC75S56FU(TE85) T, E, EUKC386 CU0119 GRM21BB30J106KE18L IC108 XA1120 S80845CLNB-B66-T2GC387 CU3535 GRM36B102K50PT IC109 XA1117 S24CS64A01-J8T1GC388 CU3535 GRM36B102K50PT IC110 XA1106 LM2902PWRC389 CU3535 GRM36B102K50PT IC111 XA1106 LM2902PWRC390 CU3554 GRM36B104K10PT IC112 XA1106 LM2902PWRC391 CU3535 GRM36B102K50PT IC113 XA1358 UPD78F0395GC-8EA-A T, E, EUKC392 CU3535 GRM36B102K50PT IC113 XA1292 UPD78F0394GC-8EA-A TFHC393 CU0119 GRM21BB30J106KE18L JK101 UJ0019 HSJ1493-01-010C394 CU3512 GRM36CH120J50PT JK102 UJ0022 HSJ1102-01-540C395 CU3535 GRM36B102K50PT L101 QS401556 0.40-1.55-6TLC396 CU3535 GRM36B102K50PT L102 QS402006 0.40-2.0-6TLC397 CU3535 GRM36B102K50PT L104 QS402006 0.40-2.0-6TLC398 CU3138 GRM188B31C225KE14D L105 QS401405 0.40-1.4-5TLC399 L106 QS501403 0.50-1.4-3TLC400 L108 QC0812 1005 100NHC401 CU3554 GRM36B104K10PT L109C403 CS0441 TMCMA0J226MTRF L110 QC0757 C1608CB22NJC404 CU3554 GRM36B104K10PT L111C413 CU3559 GRM155B30J105KE18D T, E, EUK L112 QS402057 0.40-2.05-7TLC414 CU3554 GRM36B104K10PT L113 QC0875 C2012H68NHC415 CU3554 GRM36B104K10PT L114 QC0902 C2012C1R0JCN101 L115 QC0812 1005 100NHCN102 L116 QC0736 LK10052R2K-BD101 XD0422 HSC277TRF-E L117 QB0057 MPZ1608S101ATD103 XD0419 1SS400TE61 L118 QS402057 0.40-2.05-7TLD104 L120 QB0057 MPZ1608S101ATD105 XD0421 1SV323(TPH3,H) L121 QC0818 C2012H82NHD106 XD0422 HSC277TRF-E L123 QC0736 LK10052R2K-BD107 XD0421 1SV323(TPH3,H) L124 QC0773 C1608CBR47JD108 XD0453 RB717F L125 QC0773 C1608CBR47JD109 L126 QC0769 1608CBR22JD110 XD0451 015AZ3.0-X(TPL3,F) L127 QC0765 1608 100NHD111 L128D112 XD0422 HSC277TRF-E L129 QC0812 1005 100NHD113 XD0422 HSC277TRF-E L130D114 XD0421 1SV323(TPH3,H) L132 QC0842 LB2518T221KD115 XD0421 1SV323(TPH3,H) L133 QC0812 1005 100NHD116 L134 QC0902 C2012C1R0JD117 XD0421 1SV323(TPH3,H) L135 QC0875 C2012H68NHD118 XD0421 1SV323(TPH3,H) L136 QC0875 C2012H68NHD119 XD0421 1SV323(TPH3,H) L137 QC0875 C2012H68NHD120 XD0421 1SV323(TPH3,H) L138 QC0875 C2012H68NHD121 XL0097 SML-521MUWT86 L139 QC0874 C2012H56NHD122 XD0338 1SS362(TE85L) L140D123 XL0036 LED SML-310MT L141 QC0935 LB2012T150KD124 XL0036 LED SML-310MT L142 QB0057 MPZ1608S101ATD125 XL0036 LED SML-310MT L143D126 XL0036 LED SML-310MT LCD101 EL0059 LCD DJ170D127 XD0418 RB521S-30TE61 MIC101 EY0017 OB-27P44D128 XL0036 LED SML-310MT Q101 XT0180 2SC5066FT-Y(TE85L)D129 XL0036 LED SML-310MT Q102 XE0090 SSM3J15FV(TPL3,Z)
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameQ104 XT0210 2SC6026MFV-GR R136 RK3562 1005 1/16W 100K OHMJQ105 XE0091 RQA0002DNS R137 RK3551 1005 1/16W 12K OHM JQ106 XE0092 RQA0004PXDQS R138Q107 R141Q108 XT0219 15GN03F-TL-E R142 RK3530 1005 1/16W 220 OHM JQ110 XU0211 RN2107FV R143 RK3550 1005 1/16W 10K OHM JQ111 XU0210 RN1107FV R144 RK3526 1005 1/16W 100 OHM JQ112 XT0219 15GN03F-TL-E R145 RK3532 1005 1/16W 330 OHM JQ113 XT0219 15GN03F-TL-E R146 RK3550 1005 1/16W 10K OHM JQ114 XT0213 2SC5659T2L R147 RK3501 1005 1/16W 0 OHM JQ115 XT0219 15GN03F-TL-E R148Q116 XT0219 15GN03F-TL-E R149 RK3552 1005 1/16W 15K OHM JQ117 XT0214 HN2C01FE-GR(T5L,F) R150 RK3554 1005 1/16W 22K OHM JQ118 XE0053 3SK293TE85L R151 RK3537 1005 1/16W 820 OHM JQ119 XE0053 3SK293TE85L R152Q120 XT0210 2SC6026MFV-GR R153 RK3550 1005 1/16W 10K OHM JQ121 XT0213 2SC5659T2L R154 RK3570 1005 1/16W 470K OHMJQ122 R155 RK3552 1005 1/16W 15K OHM JQ123 XU0220 RN2111MFV(TPL3) R156 RK3562 1005 1/16W 100K OHMJQ124 XT0223 2SA2070(TE12L,F) R157 RK3546 1005 1/16W 4.7K OHMJQ125 XU0211 RN2107FV T, E, EUK R158 RK3570 1005 1/16W 470K OHMJQ126 R159 RK3538 1005 1/16W 1.0K OHMJQ127 XU0220 RN2111MFV(TPL3) R160Q128 XT0214 HN2C01FE-GR(T5L,F) R162 RK3538 1005 1/16W 1.0K OHMJQ129 XU0210 RN1107FV R163 RK3542 1005 1/16W 2.2K OHMJQ130 XU0212 RN2115FV R164 RK3550 1005 1/16W 10K OHM JQ131 XU0210 RN1107FV R165 RK3501 1005 1/16W 0 OHM JQ132 XT0210 2SC6026MFV-GR R166 RK3537 1005 1/16W 820 OHM JQ133 XU0213 RN1111FV TPL3 R167 RK3539 1005 1/16W 1.2K OHMJQ134 XT0223 2SA2070(TE12L,F) R168 RK3558 1005 1/16W 47K OHM JQ135 XT0212 2SA1955FV-A(TPL3) R169Q136 XT0212 2SA1955FV-A(TPL3) R170 RK3530 1005 1/16W 220 OHM JQ137 XT0212 2SA1955FV-A(TPL3) R171 RK3564 1005 1/16W 150K OHMJQ138 XU0213 RN1111FV TPL3 R172 RK3570 1005 1/16W 470K OHMJQ139 XT0214 HN2C01FE-GR(T5L,F) R173 RK3550 1005 1/16W 10K OHM JQ140 XU0213 RN1111FV TPL3 R174 RK3526 1005 1/16W 100 OHM JQ142 XE0090 SSM3J15FV(TPL3,Z) R175R101 RK3562 1005 1/16W 100K OHMJ R176 RK3530 1005 1/16W 220 OHM JR104 RK3526 1005 1/16W 100 OHM J R177 RK3530 1005 1/16W 220 OHM JR105 RK3566 1005 1/16W 220K OHMJ R178 RK3570 1005 1/16W 470K OHMJR106 RK3501 1005 1/16W 0 OHM J R179 RK3550 1005 1/16W 10K OHM JR107 RK3534 1005 1/16W 470 OHM J R180 RK3538 1005 1/16W 1.0K OHMJR108 RK3550 1005 1/16W 10K OHM J R181 RK3518 1005 1/16W 22 OHM JR111 RK3550 1005 1/16W 10K OHM J R183 RK3538 1005 1/16W 1.0K OHMJR112 RK3530 1005 1/16W 220 OHM J R184 RK3550 1005 1/16W 10K OHM JR113 RK3546 1005 1/16W 4.7K OHMJ R185 RK3574 1005 1/16W 1.0M OHMJR114 RK3538 1005 1/16W 1.0K OHMJ R186 RK3538 1005 1/16W 1.0K OHMJR116 RK3526 1005 1/16W 100 OHM J R187 RK3542 1005 1/16W 2.2K OHMJR117 RK3014 1608 1/10W 10 OHM J R188 RK3522 1005 1/16W 47 OHM JR118 RK3518 1005 1/16W 22 OHM J R189 RK3550 1005 1/16W 10K OHM JR119 RK3562 1005 1/16W 100K OHMJ R190 RK3556 1005 1/16W 33K OHM JR120 RK3530 1005 1/16W 220 OHM J R191 RK3562 1005 1/16W 100K OHMJR121 R192 RK3574 1005 1/16W 1.0M OHMJR122 RK3542 1005 1/16W 2.2K OHMJ R193 RK3562 1005 1/16W 100K OHMJR123 R194 RK3562 1005 1/16W 100K OHMJR124 RK3552 1005 1/16W 15K OHM J R195 RK3560 1005 1/16W 68K OHM JR126 R196 RK3566 1005 1/16W 220K OHMJR127 RK3557 1005 1/16W 39K OHM J R198 RK3550 1005 1/16W 10K OHM JR128 RK3562 1005 1/16W 100K OHMJ R199 RK3570 1005 1/16W 470K OHMJR130 RK3562 1005 1/16W 100K OHMJ R200 RK3550 1005 1/16W 10K OHM JR131 RK3558 1005 1/16W 47K OHM J R201 RK3550 1005 1/16W 10K OHM JR132 RK3557 1005 1/16W 39K OHM J R202 RK3558 1005 1/16W 47K OHM JR133 RK3518 1005 1/16W 22 OHM J R203 RK3562 1005 1/16W 100K OHMJR134 RK3501 1005 1/16W 0 OHM J R204 RK3570 1005 1/16W 470K OHMJR135 RK3551 1005 1/16W 12K OHM J R205 RK3542 1005 1/16W 2.2K OHMJ
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameR206 RK3536 1005 1/16W 680 OHM J EUK R276 RK3552 1005 1/16W 15K OHM JR206 RK3539 1005 1/16W 1.2K OHMJ T, E, TFH R277 RK3552 1005 1/16W 15K OHM JR207 RK3536 1005 1/16W 680 OHM J EUK R278 RK3550 1005 1/16W 10K OHM JR207 RK3539 1005 1/16W 1.2K OHMJ T, E, TFH R279 RK3514 1005 1/16W 10 OHM JR208 RK3550 1005 1/16W 10K OHM J R280 RK3562 1005 1/16W 100K OHMJR209 RK3556 1005 1/16W 33K OHM J R281 RK3562 1005 1/16W 100K OHMJR210 RK3538 1005 1/16W 1.0K OHMJ R282 RK3538 1005 1/16W 1.0K OHMJR211 RK3550 1005 1/16W 10K OHM J R283 RK3550 1005 1/16W 10K OHM JR212 RK3518 1005 1/16W 22 OHM J R284 RK3550 1005 1/16W 10K OHM JR213 RK3550 1005 1/16W 10K OHM J R285 RK3562 1005 1/16W 100K OHMJR214 RK3518 1005 1/16W 22 OHM J R286 RK3562 1005 1/16W 100K OHMJR215 RK3574 1005 1/16W 1.0M OHMJ R287 RK3550 1005 1/16W 10K OHM JR216 RK3574 1005 1/16W 1.0M OHMJ R288 RK3560 1005 1/16W 68K OHM JR217 RK3574 1005 1/16W 1.0M OHMJ R289 RK3558 1005 1/16W 47K OHM JR218 R290 RK3566 1005 1/16W 220K OHMJR219 RK3550 1005 1/16W 10K OHM J R291 RK3558 1005 1/16W 47K OHM JR220 RK3574 1005 1/16W 1.0M OHMJ R292 RK3562 1005 1/16W 100K OHMJR221 RK3574 1005 1/16W 1.0M OHMJ R293 RK3562 1005 1/16W 100K OHMJR222 RK3564 1005 1/16W 150K OHMJ R294 RK3562 1005 1/16W 100K OHMJR223 R295 RK3562 1005 1/16W 100K OHMJR225 RK3550 1005 1/16W 10K OHM J T, E, TFH R297 RK3550 1005 1/16W 10K OHM JR225 RK3547 1005 1/16W 5.6K OHMJ EUK R298 RK3554 1005 1/16W 22K OHM JR226 RK3550 1005 1/16W 10K OHM J R299 RK3554 1005 1/16W 22K OHM JR227 RK3564 1005 1/16W 150K OHMJ R300 RK3556 1005 1/16W 33K OHM JR228 RK3554 1005 1/16W 22K OHM J R301 RK3550 1005 1/16W 10K OHM JR229 RK3544 1005 1/16W 3.3K OHMJ R302 RK3554 1005 1/16W 22K OHM JR230 RK3501 1005 1/16W 0 OHM J R303 RK3559 1005 1/16W 56K OHM JR231 RK3514 1005 1/16W 10 OHM J R304 RK3550 1005 1/16W 10K OHM JR233 RK3536 1005 1/16W 680 OHM J R305 RK3568 1005 1/16W 330K OHMJR234 RK3532 1005 1/16W 330 OHM J R306 RK3536 1005 1/16W 680 OHM JR235 RK3562 1005 1/16W 100K OHMJ R307 RK3562 1005 1/16W 100K OHMJR237 RK3570 1005 1/16W 470K OHMJ R308 RK3550 1005 1/16W 10K OHM JR239 RK3574 1005 1/16W 1.0M OHMJ R309 RK3550 1005 1/16W 10K OHM JR240 RK3562 1005 1/16W 100K OHMJ T, E, EUK R310 RK3546 1005 1/16W 4.7K OHMJR241 RK3550 1005 1/16W 10K OHM J T, E, EUK R311 RK3550 1005 1/16W 10K OHM JR242 RK3566 1005 1/16W 220K OHMJ R312 RK3550 1005 1/16W 10K OHM JR243 RK3566 1005 1/16W 220K OHMJ R313 RK3559 1005 1/16W 56K OHM JR244 RK3550 1005 1/16W 10K OHM J T, E, EUK R314 RK3559 1005 1/16W 56K OHM JR245 RK3553 1005 1/16W 18K OHM J R316 RK3550 1005 1/16W 10K OHM JR246 RK3550 1005 1/16W 10K OHM J R317 RK3570 1005 1/16W 470K OHMJR247 RK3574 1005 1/16W 1.0M OHMJ R318 RK3546 1005 1/16W 4.7K OHMJR248 RK3550 1005 1/16W 10K OHM J R319 RK3559 1005 1/16W 56K OHM JR249 RK3550 1005 1/16W 10K OHM J R320 RK3562 1005 1/16W 100K OHMJR250 RK3550 1005 1/16W 10K OHM J R321R251 RK3546 1005 1/16W 4.7K OHMJ R324 RK3558 1005 1/16W 47K OHM JR252 RK3526 1005 1/16W 100 OHM J T, E, EUK R325 RK3558 1005 1/16W 47K OHM JR253 RK3550 1005 1/16W 10K OHM J T, E, EUK R326 RK3562 1005 1/16W 100K OHMJR254 RK3553 1005 1/16W 18K OHM J R327 RK3566 1005 1/16W 220K OHMJR255 RK3566 1005 1/16W 220K OHMJ R328 RK3559 1005 1/16W 56K OHM JR256 RK3562 1005 1/16W 100K OHMJ R329 RK3556 1005 1/16W 33K OHM J TFHR257 RK1018 3216 1/8 W 100 OHM J R329 RK3557 1005 1/16W 39K OHM J T, E, EUKR258 RK3566 1005 1/16W 220K OHMJ R330 RK3550 1005 1/16W 10K OHM J TFHR259 RK3501 1005 1/16W 0 OHM J T, E, EUK R330 RK3551 1005 1/16W 12K OHM J T, E, EUKR260 RK3562 1005 1/16W 100K OHMJ T, E, EUK R331 RK3550 1005 1/16W 10K OHM JR261 R333 RK3546 1005 1/16W 4.7K OHMJR262 RK3542 1005 1/16W 2.2K OHMJ R334 RK3546 1005 1/16W 4.7K OHMJR263 RK3554 1005 1/16W 22K OHM J R335 RK3546 1005 1/16W 4.7K OHMJR265 RK3550 1005 1/16W 10K OHM J R336 RK3546 1005 1/16W 4.7K OHMJR266 RK3574 1005 1/16W 1.0M OHMJ R337 RK3558 1005 1/16W 47K OHM JR267 RK3538 1005 1/16W 1.0K OHMJ R338 RK3558 1005 1/16W 47K OHM JR268 RK3562 1005 1/16W 100K OHMJ R339R269 RK3558 1005 1/16W 47K OHM J R340 RK3552 1005 1/16W 15K OHM JR270 RK3550 1005 1/16W 10K OHM J R341 RK3562 1005 1/16W 100K OHMJR271 RK3538 1005 1/16W 1.0K OHMJ R342 RK3537 1005 1/16W 820 OHM JR273 RK3560 1005 1/16W 68K OHM J R343 RK3550 1005 1/16W 10K OHM J
Ref. No. Parts No. Parts name Version Ref. No. Parts No. Parts nameR344 RK3537 1005 1/16W 820 OHM J KZ0219 FRONT CASE ASSYDJ175R345 RK3546 1005 1/16W 4.7K OHMJ NK0081 KNOBR346 RK3562 1005 1/16W 100K OHMJ SD0111A BATTERY TERMINALR347 RK3562 1005 1/16W 100K OHMJ SD0137 TERMINALR348 RK3562 1005 1/16W 100K OHMJ SP0013 KNOB SPRING 7800R349 RK3550 1005 1/16W 10K OHM J SS0112 CHASSISR350 RK3550 1005 1/16W 10K OHM J ST0089 LCD HOLDERR351 RK3542 1005 1/16W 2.2K OHMJ TL0033 REFLECTIVE SHEETR352 RK3550 1005 1/16W 10K OHM J TS0188 VCO CASE DJ175R353 RK3538 1005 1/16W 1.0K OHMJ UE0571 SMA ANT CONNECTORR354 RK3550 1005 1/16W 10K OHM J UR0027 ROTARY ENCODERR355 RK3538 1005 1/16W 1.0K OHMJ YX0045 LCD TAPER356 RK3536 1005 1/16W 680 OHM JR357 RK3550 1005 1/16W 10K OHM JR358 RK3538 1005 1/16W 1.0K OHMJ CHARGER UNIT (EDC-165)R359 RK3566 1005 1/16W 220K OHMJ Ref. No. Parts No. Parts nameR360 RK3562 1005 1/16W 100K OHMJ D101 XL0125 MVR3338SR361 RK3554 1005 1/16W 22K OHM J JK101 UJ0033 HEC2781-010520R362 R101 RF0027 SPR3 56 OHMR363 R102 RK3038 1608 1/10W 1.0KOHM JR363 RK3538 1005 1/16W 1.0K OHMJ TFH R103R363 RK3564 1005 1/16W 150K OHMJ E, EUK UP0613 EDC165 INTEGRATEDR365 RK3534 1005 1/16W 470 OHM J AP0017 PH P2.6+10 FE/B.ZNR366 RK3501 1005 1/16W 0 OHM J DD0017 BLIND SHEETR367 RK3501 1005 1/16W 0 OHM J KS0103 BOTTOM CASE EDC165R368 RK3546 1005 1/16W 4.7K OHMJ KU0162 UPPER CASE EDC164R369 RK3538 1005 1/16W 1.0K OHMJ SP0020 CHARGE TERMINALR370 RK3550 1005 1/16W 10K OHM J TT1002 1.0X1MMR371 RK3562 1005 1/16W 100K OHMJR372 RK3560 1005 1/16W 68K OHM J T, E, EUKR372 RK3554 1005 1/16W 22K OHM J TFH ACCESSORIESR373 RK3574 1005 1/16W 1.0M OHMJ BB0009Y HAND STRAP DJS41R374 RK3558 1005 1/16W 47K OHM J BH0011 BELT CLIPR375 RK3562 1005 1/16W 100K OHMJ DS0446 NITTO MODEL PLATE(S)R376 EA0141 ANTENNA EA0141 T, E, EUKR377 RK3558 1005 1/16W 47K OHM J EA0142 ANTENNA EA0142 TFHR378 RK3558 1005 1/16W 47K OHM J EDC146 AC ADAPTOR 120V TSW101 UU0043 EVQPJ705K EDC147 AC ADAPTOR 230V T, E, EUKTH101 EDC148 AC ADAPTOR 230V UK PLUG EUKW101 MRCL07AA #30R02-070-02 EBP072 NI-MH BATTERY PACKW102 MACL07AA #30A02-070-02W103 MACLH2GG #30AH1-025-H1 T, EX102 XQ0208 DSX321SC21.250MHZX103 XK0005 CDBCB450KCAY24-R0X104 XQ0212 SMD-49 8.192MHZ
UP0619A DJ175 INTEGRATED-AAF0003 0PH M2+3 FE/N3AF0030 0PH2+6FE/N1AN0034 M6 NUT BR/B.NAN0042 DIAL NUTAX0009 OPH P2+6 FE/N 1DG0046 LCD LIGHT DJ170DP0195 LCD PANELES0027 36-8BB-10B2 ROHSFG0234Y MIC HOLDER DJ190FG0392 WATERPROOF CAPFG0418 LCD RUB CONEFG0478 KEYBOADFG0479 PTT RUBBERFG0480 JACK CAPFM0265A HEAT SINK, DJV17FM0300 ANT GND DJ175FP0310 TERMINAL CASEFP0321 SPACERFP0324 BLIND SHEET DJ175
YX0045
DP0195
KZ0219
NK0081
FG0392
FG0480 FG0479
AX0009FG0478
ES0027
FG0418
DG0046
TL0033
FG0234Y
SS0112
AN0034
AN0042
FM0300
SD0137
AF0003
AF0003
FP0310
SD0111A
EL0059
ST0089
AF0003
UE0571
UR0027
FP0321
FP0324
AF0030
AF0003
PC Board ViewMAIN - Side A
PC Board ViewMAIN - Side B
(Anode)
R101
JK101
D101
(-)(+)
T103 T101 T102
R102
R103
Side-A
Side-B
PC Board View EDC165
Adjustments: 1) Required Test Equipment The following items are required to adjust radio parameters 1.Regulated power supply
Supply voltage: 7-8 DC Current: 3A or more
2.Digital multimeter Voltage range: FS = Approx. 20V Current: 10A or more Input resistance: High impedance
3.Oscilloscope Measurable frequency: Audio frequency
4.Audio dummy load Impedance: 8Ω Dissipation: 1W or more Jack: 3.5mmΦ
5.SSG Output frequency: 200MHz or more Impedance: 50Ω, unbalanced Modulation: FM
6.Power meter Measurable frequency: Up to 200MHz Impedance: 50Ω, unbalanced Measuring range: 0.1W-10W
7.Audio volmeter Measurable frequency: Up to 100kHz Sensitivity: 1mV to 10V
8.Audio generator Output frequency: 67Hz to 10kHz Output impedance: 600Ω, unbalanced
9.Distortion meter/SINAD meter Measurable frequency: 1kHz Input level: Up to 40dB Distortion: 1%-100%
10.Frequency counter Measurable frequency: Up to 200MHz Measurable stability: Approx. ±0.1ppm
11.Linear detector Measurable frequency: Up to 200MHz Characteristics: Flat CN: 60dB or more
12. DC Ammeter Current: 3A or more
Note:
(1). SSG initial setting Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5kHz (EUK)
(2). Reference sensitivity: 12dB SINAD (3). Specified audio output level: 500mW at 8Ω (4). Standard audio output level: 50mW at 8Ω (5). Use an RF cable ( 3D2W:1M ) for test equipment. (6). Attach a fuse to the RF test equipment. (7). All SSG outputs are indicated by EMF (8). Supply voltage for the transceiver: 7.2VDC
2) Adjustment mode
The adjustment should be operated in the Adjustment mode. Therefore except for the reference frequency, deviation and tone-deviation adjustments an operator won’t touch the components on the board, but most of the adjustments should be done by operating the dial and keys on the unit. During such operation, memory channels are used temporary therefore it is required to program memories before the unit is set to the adjustment mod. Please refer the chart below for the programming channels. The frequencies may be varied within the range of ±0.2Mhz depending on the RF environment around your work area, and refer the instruction manual for how to program the memories into the memory-channels.
To enter the adjustment mode, press “F” then “KL” to key-lock the unit. Then press the numeric keys in order of ”4”, “9”, “0”, “2”, “1” and “7”. Observe that decimal points appear on the display below 100MHz and 10MHz digits. To exit from the adjustment mode, repeat the whole sequence (key-lock then enter the code in order). NEVER RESET THE UNIT WHILE OPERATING IN THE SET MODE. This may reset whole adjustment values resulting the malfunction of the unit in the operating mode. The chart below shows the adjustment points and interface between the unit and instruments. Please use an attenuator in case the specifications of the linear-detector and frequency counter may exceed the requirement herein.
* Simply memory the frequencies only into the relative memory channels.
T, E, EUK TFH1 Frequnecy Adjustment 145.000 162.0002 TX-output / High power 145.000 162.0003 TX-output / Mid power 145.000 162.0004 TX-output / Low power 145.000 162.0005 Microphone deviation 145.000 162.0006 CTCSS tone deviation 145.000 162.0007 DCS deviation 145.000 162.00011 Sensitivity adjustment (lower edge) 137.000 137.00012 Sensitivity adjustment (center range) 150.000 150.00013 Sensitivity adjustment (upper range) 173.000 173.00014 Squelch adjustment (minimum) 145.000 162.00015 Squelch adjustment (maximum) 145.000 162.00016 S-meter adjustment (1) 145.000 162.00017 S-meter adjustment (Full) 145.000 162.000
FrequencyChannel Adjustment menu
1. Frequency adjustment Select memory ch.1. Press PTT on the unit to transmit and measure the TX frequency. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the frequency to bring the value to the range specified below.
Specification value :±50Hz Necessary instrument: (1). Frequency counter
2. TX output – High power
Select memory ch.2. Press PTT on the unit to transmit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the TX power to meet the specification. Release the PTT to finish the adjustment. Be sure to check the consuming current value after the adjustment is completed.
Specification: TX-output power/High: 5.0 watts Current consumption / 1.6A or less
Necessary instrument: (1). DC Ammeter (2). Power meter
3. TX output – Middle power
Select memory ch.3. Press PTT on the unit to transmit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the TX power to meet the specification. Release the PTT to finish the adjustment.
Specification: 2.0 watts Necessary instrument: (1). Power meter
4. TX output – Low power Select memory ch.4. Press PTT on the unit to transmit. One of digits 0-F should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the TX power to meet the specification. Release the PTT to finish the adjustment.
Specification: 0.5 watts Necessary instrument: (1). Power meter
5. Microphone deviation Select memory ch.5. Input the signal as specified below from an Audio generator and transmit. Measure the deviation value using a Liner-detector. Press PTT on the unit to transmit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the deviation to meet the specification. Release the PTT to finish the adjustment.
Specification : 4.3±0.1kHz (T, E, TFH) 2.2±0.1kHz (EUK)
Measuring condition:(1). Audio generator setting Frequency: 1kHz Output Level:50mV
Necessary instrument:(1). Audio generator (2). Linear detector
6. CTCSS tone 88.5Hz deviation and adjustment of the sign-wave
Select memory ch.6. Press PTT to automatically transmit 88.5Hz tone. Measure the deviation value using a Liner-detector. Press PTT on the unit to transmit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the tone deviation to meet the specification below. Use an oscilloscope to monitor the sign-wave then correct the wave shape (see the chart 1 below).
Specification: 0.80±0.05KHz (T, E) 0.90±0.05KHz (TFH) 0.50±0.05KHz (EUK) Necessary instrument:(1). Linear detector
(2). Oscilloscope
Chart 1: sign-wave correction 7. DCS 255 deviation
Select memory ch.7. Press PTT to automatically transmit DCS code of 255. Measure the deviation value using a Liner-detector. Press PTT on the unit to transmit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to adjust the tone deviation to meet the specification below.
Specification: 0.80±0.05KHz (T, E, TFH) 0.50±0.05KHz (EUK)
Necessary instrument:(1). Linear detector
OK
NG
NG
8. Receiver sensitivity adjustment Preparation: Set the speaker audio output level to 50mW.
Operation: There are three points to be adjusted, the lower, central, and upper edges of the receiver’s covering range. Set the memory channels accordingly. Input an RF signal from the SSG to the antenna connector then measure output signal at the speaker jack using a SINAD meter. Press “F”(FUNC) key on the unit. One of digits 00-FF should appear on the display where memory channel number was shown. Rotate the dial on the unit to bring the SINAD value to 12dB or better.
a. Lower edge Condition:(1). Memory Channel: 11
(2). SSG setting Frequency: 137.000MHz RF Output Level: -7.0dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
b. Center range Condition:(1). Memory Channel: 12
(2). SSG setting Frequency: 150.000MHz RF Output Level: -8.0dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
a. Upper edge Condition:(1). Memory Channel: 13
(2). SSG setting Frequency: 173.000MHz RF Output Level: -8.0dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
Necessary instruments:(1). Audio volmeter (2). SSG (3). SINAD Meter (4). Audio dummy load
Note: Press “FUNC” key or leave the unit for 5 seconds to enter the new values and go to the next adjustment procedure. Memory number should appear on the display when the unit exits the sensitivity adjustment.
9. Squelch adjustments: Select the memory channel number accordingly to adjust the level Min and Max. Input an RF signal to the antenna connector from SSG then press FUNC key on the unit. A beep (“pip” ) sounds and completes the adjustment.
a. Squelch level (Min.) Condition:(1). Memory Channel:14 (2). SSG setting
Frequency: 145.000MHz (T, E, EUK)/ 162.000MHz (TFH) RF Output Level: -11dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
b. Squelch level (Max.)
Condition:(1). Memory Channel: 15 (2). SSG setting
Frequency: 145.000MHz (T, E, EUK)/ 162.000MHz (TFH) RF Output Level:0dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
Necessary instrument:(1). SSG
10. S-meter adjustments Select the memory channel number accordingly to adjust the S-meter level 1 and full. Input an RF signal to the antenna connector from SSG then press FUNC key on the unit. A beep (“pip” ) sounds and completes the adjustment.
a. S-meter level 1 Condition:(1). Memory Channel: 16
(2). SSG setting Frequency: 145.000MHz (T, E, EUK)/ 162.000MHz (TFH) RF Output Level:-5dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
b. S-meter level Full Condition:(1). Memory Channel: 17
(2). SSG setting Frequency: 145.000MHz (T, E, EUK)/ 162.000MHz (TFH) RF Output Level:15dBμ Modulation Frequency:1kHz Modulation Level:3.0kHz (T, E, TFH)/ 1.5KHz (EUK)
Necessary instrument:(1). SSG
KO
3
KO
2
KO
1
KO
0
KI3
KI2
KI1
KI0
SE
G31
CO
M0
SE
G30
SE
G29
SE
G28
SE
G27
SE
G26
SE
G25
SE
G24
SE
G23
SE
G22
SE
G21
SE
G20
SE
G19
SE
G18
SE
G17
SE
G16
SE
G15
SE
G14
SE
G13
SE
G12
SE
G11
SE
G10
SE
G9
SE
G8
SE
G7
SE
G6
SE
G5
SE
G4
SE
G3
SE
G2
SE
G1
SE
G0
CO
M3
CO
M2
CO
M1
SCL
SDA
RE2
RE1
P5C
STBP
DATA
CLK
T5C
R5C
LDDA
CLK
DATA
SC
L
SD
A
RE
2
TON
E
TBS
T
DTM
F
CO
M3
CO
M2
CO
M1
CO
M0
R5CT5
C
P5C
FLS
W
PS
W
XO
UT
FLM
D
RE
SE
T
BE
EP
XIN
CLS
FT
FSK
SE
G31
SE
G30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SE
G4
SE
G3
SE
G2
SE
G1
SE
G0
RE
1
LAM
P
AFP
PTTK
BAT
FKEY
SMT
SQL
MUTE
C5C
LDDA
CLK
DATA
STBP
KO3
KO2
KO1
KO0
KI3
KI2
KI1
KI0
TIN
VDET
XO
UT
FLM
D
RE
SE
T
21 A3
654 B
7 8 9 C
0 # D*
RE101RH70N97E20
FUNC
PTT
MONI
PSW
Ni-MH
GND
MUTE
MUTE
W101
W102
SP10136-8BB-10B2
C5V
+B
PTTK
C5V
MICC
T5V
R5V
P5V
T5VP5V
M5C
PTT
MACLH2GG
MACLH2GG
R363 W103
NC
TC75S56FU
TC75S56FU
IC107
NC
150k
NC
150k
1k
TC75S56FU
NC NC NC
Q125
RN2107MFV
RN2107MFV
RN2107MFV
C305
2.2/16V
2.2/16V
2.2/16V
C312 C413
0.1
0.1
0.1 1
1
1
R240 R241 R244 R252 R253 R259
100k
100k
100k 10k 10k
10k10k
10k 10k 10k
10k
10k100
100
100
0
0
0
NC NC NC NC NC NC NC NC
C263
7p
7p
7p
15p
FL101/FL102
21.7M-W
21.7M-W
21.7M-W
21.7M-N
ALFYM450F
ALFYM450F
ALFYM450F
ALFYM450G
FL103 R206 R207
680 680
1.2k
1.2k
1.2k 1.2k
1.2k
R225 R330 R372
1.2k 10k
10k
10k
5.6k
12k
12k
12k
10k
68k
68k
68k
22k
C209
18p
22p
22p
22p
W10
3V
al
R260
100k
100k
100k
NCNC
18p
18p
C130
18p
E
T
Val
EUK
TFH
39k
33k
39k
R329
39k
IC113
Schematic diagram DJ-175
uPD78F0395GC
uPD78F0395GC
uPD78F0395GC
uPD78F0394GC
C14
00.
1
R10
410
0
R12
415
k
C1961p
R10
522
0k
C1761p
R12
739
k
C15
50.
001
C15
6N
C
R11
610
0
C23
70.
01
R33
34.
7k
R33
44.
7k
R33
54.
7k
R33
64.
7k
D123SML310MTR342
820
Q133RN1111MFV
D125SML310MTR344
820
C34
60.
01C
355
0.01
D124SML310MT
D126SML310MT
C32
41
LCD101
S31
1
S30
2
S29
3
S28
4
S27
5
S26
6
S25
7
S24
8
S23
9
S22
10
S21
11
S20
12
S19
13
S18
14
S17
15
S16
16
S15
17
S14
18
S13
19
S12
20
S11
21
S10
22
S9
23
S8
24
S7
25
S6
26
S5
27
S4
28
S3
29
S2
30
S1
31
S0
32
CO
M3
33
CO
M2
34
CO
M1
35
CO
M0
36
R2821k
R2711k
R256100k
R255220k
R268100k
R2671k
R26
510
k
C32
21
R21310k
R27
010
kR
278
10k
R2471M
Q127RN2111MFVR250
10kR24910k
R24810k
R2514.7k
C31
60.
1
C31
50.
01
C30
00.
1
R26
61M
IC108S80845CLNB
NC3
Vss4 OUT 1
Vdd 2
R11
41k
R21
71M
Q123RN2111MFV
C27
20.
001
R22
93.
3k
C286220p
R227150k
C288220p
C26
10.
01
R18
61kC23
40.
01
R196220k
C24
60.
1C
260
0.1
C2390.01
D121SML521MUW
R25
822
0k
R23
368
0
Q1183SK293
D128SML310MTR356
680
D129SML310MT
Q140RN1111MFV
Q138RN1111MFV
R23
433
0
C18
6N
C
C18
20.
1
C18
110
/6.3
V IC102MB15E07SR
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16OSCin
Vp
Vcc
Do
fin
Xfin
GND
Clock
LD/fout
PS
LE
Data
NC
NC
NC
NC
R16
410
k
C21
50.
1
C22
50.
001
C16
422
/6.3
V +
R145330
C18
40.
01C
171
10p
R14
310
k
R17
410
0
C19
0N
C
Q1042SC6026MFV
C13
8N
C
C31
40.
01
Q129RN1107MFV
Q111RN1107MFV
R17
847
0k
C13
9N
C
R11
32.
2k
R11
822
R13
322
C16
710
0p
C23382p R
183
1k
C22
40.
01
Q1142SC5659
D10
6H
SC
277
R119100k
R21
422 R21
51M
Q1193SK293
R19
310
0k
R21
8N
C
R22
01M
C25
9N
CL1
40N
C R21
61M
L117MPZ1608S101
R33847k
Q1322SC6026MFV
R34
110
0k
R34
015
k
R33
9N
C
R17
622
0
C28
20.
1
R10
110
0k
C245100p
C258100p
R18
122
R36
70
R36
60
C39
00.
1
D11
001
5AZ3
.0
C31
01/
16V
R19
410
0kR
209
33k
R18847
R20
247
kR
190
33k
R19
110
0kR
203
100k
C31
733
p
C31
827
p
L14115u
C36
10.
001
SW101EVQPJ705K
C1221D103
1SS400
R1222.2k
C28
022
/6.3
V +
C26
547
/16V +
C26
61/
16V
R14
70
R14
8N
C
C19
11/
16V
TH10
1N
C
C17
5N
C
C17
4N
C
L109
NC
C1980.1
R1591k
R15310k
C20
00.
1
R37
010
k
R16847k
IC101LM2904PWR
5 6 7 81234
GN
D
V+
C11
5N
C
R12
022
0
Q106RQA0004
C15
10.
01
L142
MP
Z160
8S10
1
R13
610
0k
C12
0N
C
R13
010
0k
R13
147
k
R15
2N
C
C399NC
C400NC
L120
MP
Z160
8S10
1
C15
90.
01
C39
82.
2/16
V
C17
3N
C
R15
74.
7k
C19
40.
1
D108RB717F
X103CDBC450CX24TC
C2481
R199470k
C2470.1
C25
20.
001
R19810k
C23
110
/6.3
V
Q122NC
R21
01k
R20010k
R20110k
C25
30.
0047
R18
51M
R19
21M R376
NC
R21
222
R37
747
k
R21
910
k
R21
110
k
Q105RQA0002
R14
1N
C
R128100k
R19
568
k
C2380.0022
C24
10.
0022C249
0.0015C250
0.0015
R18
72.
2k
R154470k
D11
1N
C
C14
4N
C
Q142SSM3J15FV
C12
912
p
JK101HSJ1493-01-0101
2
6
3
4
5
R34
310
k
Q1342SA2070
C37
8N
CC
373
NC
R305330k
C36
30.
001
R30
810
k
R320100k
R30
710
0k
C36
268
0p
C367100p
C3710.001
R3184.7k
R3104.7k
C365680pR
306
680
R32
722
0kC
372
1
C35
90.
047
C3420.01
C3410.01
R29
710
k
C3430.1R
288
68k MIC101
OB-27P44
R30
410
k
R29822k
R34
910
k
R3551k
R35410k
R35
710
k
R35
81k
C39
310
/6.3
V
C38
247
/6.3
V +R348100k
R35
210
k
Q1362SA1955FV
R347100kC
386
10/6
.3V
R346100k
Q1352SA1955FV
Q1372SA1955FV
R17910k
R18410k
R18910k
R17
310
k
R28947k
R29
147
k
C32
71/
16V
C3131/16V
R27368k
R28
310
kR
276
15k
R30910k
R30110kC
345
0.1
C33
110
/6.3
VC
354
0.00
33
C3480.01
R28
710
k
R30033k
R290220k
C32
90.
1
R235100k
C29
5N
C
R371100k
R35
12.
2k
R35
010
k
R11
222
0
R13
239
k
R10810k
R15
515
k
R144100
R14
610
k
Q131RN1107MFV
R30
222
k
R30
356
k
R2590
R3531k
D12
7R
B52
1S-3
0
R20
810
kR20
447
0k
C25
40.
015
Q1202SC6026MFV
Q117HN2C01FE
C296100/10V
+
R257100
JK102HSJ1102-01-5401
3
2
C34
710
0p
C32
50.
1
R26
947
kR
299
22k
C3440.1
C29
00.
1R
231
10
IC104NJM2070M
NC1
+IN2
-IN3
GND4 GND 5OUT 6
V+ 7NC 8
C29
12.
2/16
VR
230
0
R22
822
k
C40
2N
C
C2841
R17
722
0
R170220
C33
81/
16V
C19
722
0p
R156100k
R16
71.
2k
R158470k
C21
92.
2/7V +
C20
60.
1/20
V +
C20
50.
1/20
V +
L132220u
R37
510
0kC
274
0.1
R36
84.
7kR
369
1k
C40
322
/6.3
V +IC105M62364FP
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
21
22
23
24
LD
DI
CLK
V
V
V
V
V
V
V
VV
V
V
VOUT8
V
V
V
V
V
IN6
OUT6
OUT5
IN5
IN8
IN7
IN4
OUT4
OUT3
IN3
IN1
OUT1
OUT2
IN2
DD
Do
GND
OUT7
DArefVRESET
C35
810
/6.3
V
R28
410
k
R31
356
k
C36
60.
0015C36
40.
0022
R31
456
k
C36
847
0p
C36
90.
0033
C35
068
0p
R28
510
0k
R286100k
R292100k
R293100k
C35
20.
01 C34
90.
0022
C33
91/
16V C33
410
/6.3
V
R294100k
C35
30.
0022
R295100k
R31
210
k
R31956k
C36
01
R31
110
k
IC112LM2902PWR
8 9 10 11 12 13 141234567
V+
GN
D
R27
715
kC32
6N
C
C4010.1
R32933k
C3760.1
R33
110
k
C35
1N
C
R2211M
C40
40.
1
R11110k
R380NC
R37
31M
R23
91M C30
40.
1
R37
447
k
C29
7N
C
R23
747
0kC278100p
R22
3N
C
TP101
R317470k
R32
1N
CD1221SS362R316
10k
R33
747
k
C3770.1
R326100k
R32
856
k
R281100k
C33
610
0p
R280100k
IC110LM2902PWR
8 9 10 11 12 13 141234567
V+
GN
D
C33
50.
0027
Q139HN2C01FE
R22
610
k
IC103TA31136FNG
1 2 3 4 5 6 7 8910111213141516
QU
AD
AF
OU
T
IF O
UT
N-D
ET
RS
SI
GN
D
MIX
IN
N-R
EC
FIL
IN
FIL
OU
T
DE
C
IF IN
Vcc
MIX
OU
T
OS
C O
UT
OS
C IN
C28
50.
1
R26
322
k
R26
22.
2kC
293
0.1
C29
247
/16V +
Q1242SA2070
C30
82.
2/16
V
R37
847
k R25
418
k
R24610k
R11
710
C29
91/
16V
C31
9N
C
Q141NC
R243220k
Q126NC
R242220k
R379NC
R24
518
k
C40
8N
C
C3061
C2790.01
R18
01k
X1048.192M
IC111LM2902PWR
8 9 10 11 12 13 141234567
V+
GN
D
R32547k
R32447k
C37
50.
0033
C37
00.
1
IC106XC6202P502M
Vout3
Vss2
Vin1
C30
210
0/6.
3V +
Q110RN2107MFV
R10
747
0
C1010.001
C1080.001
L1010.4-1.55-6TL
C10912p
C12
412
p
C12
512
p
C12
615
p
C12
718
p
C1104p
L1020.4-2.0-6TL
C11
715
p
L1040.4-2.0-6TL
C11
815
p
C11
915
p
D101HSC277
D104NC
C1020.001
C1110.001
C13
0V
al
C14
91p
C16
81p
L114 1u
R142220
R14915k
R13
512
k
R13
712
k
C15
01p
C16
91p
C13
133
p
C13
227
p
C13
333
p
L112
0.4-
2.05
-7T
L1050.4-1.4-5TL
L1060.5-1.4-3TL
C15
80.
001
C15
70.
001
C13
415
p
C13
515
p
C13
615
pC
160
0.00
1
C16
10.
001
L110
22n
C15
20.
001
C10347p Q101
15GN03F
C14
50.
001
C14
60.
001
C16
50.
001
C1130.001
L108
100n
L111
NC
C15
3N
C
R12
1N
C
R13
8N
C C16
2N
C
R13
40
R123NC
Q107NC
R1060
C1142p
D10
9N
C
Q11315GN03F
C18022p
L115
100n
R15
182
0
R16
682
0
C14
10.
001 Q108
15GN03F
C16
615
pC
178
15p
C11612p
D10
51S
V32
3D
107
1SV
323
L113
68n
C14
21p
C17
90.
001
C10
40.
001
L1162.2u
C18715p
C19
318
pC
199
22p
D11
51S
V32
3D
114
1SV
323
L1232.2u
L121
82n
C13
70.
001
C16
30.
001 C147
5p
X10221.25M
C17
70.
001
C18
50.
001
C18
30.
001
R1632.2k
R1621k
C20
40.
001
Q11615GN03F
C2270.001
C22
00.
001
C23012p C
228
22p
C22
922
p
L133100n
C21
40.
001
L1180.4-2.05-7TL
C18
87p D11
2H
SC
277
D11
3H
SC
277
C20
10.
001 C22
60.
001
C17
20.
001
C19
50.
001
R15
022
k
R126NC
C19
20.
001
C18
90.
001
L143
NC
C10
5N
C
R172470k
C2070.01
L130
NC
R16
0N
C
R36
547
0
C2020.01
L128
NC
C21
318
0p
C21
227
0p
C21
118
0p
L124470n
L125470n
R1650
D116NC
C2102p
R16
9N
CR
175
NC
C22
3N
C
R171150k
Q11515GN03F
C22
10.
001
L129
100n
C39
415
p
C2030.001
L126220n
C20
9V
al
L127
100n
C22
20.
001
Q1212SC5659
R207Val
FL102Val
FL101ValR206
Val
C26
3V
al
C23
60.
001
C23
547
p
L134 1u
C26
20.
001
C27
70.
001
C39
50.
001
L137
68n
C27
110
0pD
119
1SV
323
C2440.8p
L136
68n
C21
6N
C
D11
81S
V32
3
C2430.8p
C27
010
0p
C26
910
0p
R20
52.
2k
D11
71S
V32
3C2420.001
C26
80.
001
C24
00.
001
L135
68n
C27
50.
001
C27
610
0p
L139
56n
D12
01S
V32
3
C2574p
L138
68n
C25627p
C2550.001
C28
10.
001
FL103Val
C27
30.
001
C23
20.
001
R37
2V
alC
298
0.00
1
C28
90.
001
R225Val
Q128HN2C01FE
C41
1N
C
C39
70.
001
C29
40.
001
C26
70.
001
C26
40.
001
C28
70.
001
C30
70.
001
C32
00.
001
C32
10.
001
C35
60.
001
Q130RN2115MFV
C33
00.
001
Q144NC
Q125Val
R24
4V
alC
312
Val
R24
0V
al
R252Val
R241Val
R253Val
C30
5V
al
R260Val
IC107Val
4
V+5 1
G 2
3
C33
20.
001
C32
80.
001
C33
30.
001
C34
00.
001
R330Val
C406NC
R382NC
D131NC
C40
7N
C
R38
3N
C
R27
910
Q143NC C
337
0.00
1C
357
0.00
1
C38
50.
001
C38
70.
001
C38
80.
001 C
381
0.00
1
C38
30.
001
C38
90.
001
C38
40.
001
C39
20.
001
C41
2N
CC
379
0.00
1
C38
0.0
001
C39
10.
001
C32
30.
001
C30
30.
001
C31
10.
001
C30
10.
001
C39
60.
001
IC109S24CS64A01A01
A12
A23
GND4 SDA 5SCL 6WP 7
VCC 8
R36
2N
C
R36
010
0kR
363
Val
CN102
7654321
D130RB521S-30
R35
922
0kR
361
22k
Q11215GN03F
C11256p
R22
2V
alR
345
4.7k
C41
50.
1
C413Val
Q102SSM3J15FV
C41
40.
1IC113
uPD78F0395GC-8EA-A
S226
S327
S428
S529
S630
S731
S832
S933
S1034
S1135
S1236
S1337
S1438
S1539
S1640
S1741
S1842
S1943
S2044
S2145
S2246
S2347
S2448
S2549
S2650
S27
51
S28
52
S29
53
S30
54
S31
55
S32
56
S33
57
S34
58
S35
59
S36
60
S37
61
S38
62
S39
63
LVS
S64
LVD
D65
P32
66
P31
67
P30
68
TO50
69
P16
70
P15
71
P14
72
P13
73
P12
74
RX
D0
75
TXD0 76AVREF 77
AVSS 78ANI7 79ANI6 80ANI5 81ANI4 82ANI3 83ANI2 84ANI1 85ANI0 86P04 87P03 88P02 89P01 90P00 91P05 92P06 93P70 94P71 95P72 96P73 97P74 98P75 99P77 100
P77
1P
120
2TO
513
P61
/SD
A0
4P
60/S
CL0
5R
ES
ET
6P
124
7P
123
8FL
MD
09
X2
10X
111
RE
GC
12V
SS
13V
DD
14C
AP
H15
CA
PL
16V
LC0
17V
LC1
18V
LC2
19C
OM
020
CO
M1
21C
OM
222
CO
M3
23S
024
S1
25
Schematic Diagram EDC-165
D101
MVR3338S
R102
1k
R103
NC
R101
56/3W
JK101
2
3
1T101
T102
LPF
D101 HSC277D112 HSC277D113 HSC277
ANT SW
D120 1SV323
BPF RF AMP
3SK293Q119
BPF
D118 1SV323D117 1SV323
D119 1SV3233SK293
1st MIXER
Q118 FL101FL102
21.7MHz
MCF IF AMP
2SC5659Q121
CERAMIC FILTER
FL103450KHz
DISCRIMINATOR
X103
BUFFER
Q115
2SC6026MFVQ120
AF AMP
Q117HN2C01FE
ACTIVE FILTER (HPF) MUTE
Q142SSM3J15FV
SW-AUDIO
AUDIO AMP
NJM2070M
Q128 HN2C01FE
IC104
Q124 2SA2070
AFP
MUTESMT SQL
TA31136FNIC103
APC DET
RB717FD108
POWER AMP DRIVER PRI-DRIVER
Q105RQA0002
Q106RQA0004
Q101 Q11315GN03F
15GN03FQ112
D115 1SV323D114 1SV323
15GN03FQ108
BUFFER AMP LOOP FILTER
MB15E07SL
PLL IC TCXO
21.25MHzX102
STBCLK
DATA
D107 1SV323D105 1SV323
VCO-RX
VCO-TX
MODULATIONAPC AMP
IC101LM2904PWM
M62364FP
BUFFER
Q1142SC5659
TONE LPF
LM2902PWR
TIN
BUFFER
2SC5066FTIC105
CLKDATA
LDDA
LM2902PWR
ACTIVE FILTER (LPF)
DTMF
15GN03F
TUNE
IF DETECTOR
D/A CONVERTER (POTENTIOMETER)
IC112 2/4
BAT
5V REGULATOR
RESET
S80845CLNB
XC6202P502M
LM2902PWR
ACTIVE FILTER (LPF)
TONE (67-250.3Hz)/ DCS (023-754)IC112 1/4
*
7
4
1
0
8
5
2
#
9
6
3
D
C
B
A
KEY INPUT
LCD
ROTARY ENCODER
D123 SML310MTD124 SML310MTD125 SML310MTD126 SML310MTD128 SML310MTD129 SML310MT
BACK LIGHT
Q140 RN1111MFV
LAMP SW
Q133 RN1111MFVQ138 RN1111MFV
EEP ROM
S24CS64A01
XTAL OSC
X104RN2111MFV
CLOCK SHIFT
SW-TX
2SA1955FV
T5C
T5V
SW-RX
2SA1955FV
R5C
R5V
SW- PLL
Q1372SA1955FV
P5C
P5V
C5V SW
HN2C01FE
C5C
RN1107MFV
MIC MUTE
Q122
MUTE
IC110LM2902PWR
IDC/ SPLATTER FILTER
RN2115MFV
PTT-SW
Q130PTTK
PTT
MONI
POWER
FUNC
+B
BATTERY 7.2V
SPEAKER
MIC
RECEIVE/TRANSMIT
CPU CONTROL
RECEIVE
TRANSMIT
IC109
CPU
IC106
Q1322SC6026MFV
IC108
8.192MHzQ127
Q135
Q136
Q139
Q1342SA2070
C5V
IC111
IC102
Q116
IC113
SD SW
Q123RN2111MFV
T5V
D121SML521MUW
TX/ RX LED
SPEAKER JACK
MIC JACK
CLONE
D127 RB521S-30TXD/RXD
2SC5066
uPD78F0395GC-8EA-A
D106 HSC277
Block Diagram DJ-175