Service Manual Digital VCR DVWA500P Vol1 part2

MAINTENANCE MANUAL Part 2

Volume 1 1st Edition (Revised 6)

DIGITAL VIDEOCASSETTE RECORDER

DVW-A500PDVW-500PDVW-A500P/1DVW-500P/1DIGITAL VIDEOCASSETTE PLAYER

DVW-A510PDVW-510PDVW-CA510PANALOG COMPOSITE DECODER BOARDBKDW-506

AUDIO PROGRAM PLAY BOARDBKDW-507

PARALLEL (50P) INTERFACE KITBKDW-509

CONTROL PANEL EXTENSION KITBKDW-510

CONTROL PANEL CASEBKDW-511

CONTROL PANELBKDW-514

CONTROL PANELBKDW-515

DVW-A500P/500PDVW-A510P/510P

1

TABLE OF CONTENTS

1. SERVICE OVERVIEW

1-1. REPLACEMENT OF SURFACEMOUNTED DEVICES ......................................... 1-1

1-1-1. Resistor and Capacitor Replacement ........ 1-11-1-2. Transistor and Diode Replacement ........... 1-11-1-3. IC Replacement ......................................... 1-21-1-4. IC-link and Micro Fuse Replacement ......... 1-2

1-2. REMOVAL OF PLCC IC ..................................... 1-31-3. EXTENSION BOARD.......................................... 1-41-4. SAFETY CHECK-OUT ........................................ 1-5

2. REPLACEMENT OF MECHANICAL PARTS

2-1. GENERAL INFORMATION FOR PARTSREPLACEMENT ................................................. 2-1

2-2. REEL TABLE ASSEMBLY REPLACEMENT ...... 2-32-2-1. Reel Table Height Adjustment ................... 2-62-2-2. Reel Brake Clearance Check ..................... 2-92-2-3. Reel Brake Release Amount Adjustment ... 2-102-2-4. Reel Table Rotation Sensor Position

Adjustment ................................................. 2-122-3. BRAKE SOLENOID REPLACEMENT ................ 2-15

2-3-1. Reel Motor Shaft Slantness Adjustment .... 2-272-3-2. Cassette Pillar Height Adjustment ............. 2-29

2-4. REEL SHIFT MOTOR REPLACEMENT ............. 2-312-5. REEL SHIFT GEAR REPLACEMENT ................ 2-372-6. CLEANING SOLENOID REPLACEMENT .......... 2-432-7. TAPE GUIDES REPLACEMENT ........................ 2-552-8. TAPE CLEANER REPLACEMENT ..................... 2-572-9. FULL ERASE HEAD REPLACEMENT ............... 2-592-10. THREADING MOTOR REPLACEMENT .......... 2-652-11. RING ROLLER REPLACEMENT ..................... 2-71

2-11-1. Pinch Press Clearance Adjustment ........... 2-782-12. THREADING RING ASSEMBLY

REPLACEMENT ............................................... 2-812-13. S TENSION REGULATOR REPLACEMENT ... 2-972-14. T TENSION ARM REPLACEMENT .................. 2-1012-15. T DRAWER ARM REPLACEMENT .................. 2-105

2-15-1. Slant Guide Slantness Adjustment ............ 2-1112-16. CASSETTE COMPARTMENT MOTOR

REPLACEMENT ............................................... 2-1152-17. CLEANING ROLLER AND VIDEO HEAD

CLEANER ASSEMBLY REPLACEMENT......... 2-125

3. TAPE PATH ALIGNMENT

3-1. GENERAL INFORMATION FOR TAPE PATHALIGNMENT ....................................................... 3-1

3-2. TAPE PATH ALIGNMENT FOR RECORDER .... 3-53-2-1. Audio/TC Head Zenith Adjustment ............ 3-53-2-2. Tape Running Adjustment ......................... 3-73-2-3. Video Tracking Adjustment ........................ 3-113-2-4. CTL Head Height Adjustment .................... 3-213-2-5. CTL Head Position Adjustment .................. 3-233-2-6. Audio/TC Head Height Adjustment ............ 3-273-2-7. Audio/TC Head Azimuth Adjustment ......... 3-333-2-8. Audio/TC Head-to-tape Contact

Adjustment ................................................. 3-373-2-9. Audio/TC Head Position Adjustment .......... 3-433-2-10. Audio Level Adjustment in REV Mode ....... 3-45

3-3. TAPE PATH ALIGNMENT FOR PLAYER .......... 3-493-3-1. Audio/TC Head Zenith Adjustment ............ 3-493-3-2. Tape Running Adjustment ......................... 3-513-3-3. Video Tracking Adjustment ........................ 3-553-3-4. CTL Head Height Adjustment .................... 3-653-3-5. CTL Head Position Adjustment .................. 3-673-3-6. Audio/TC Head Height Adjustment ............ 3-713-3-7. Audio/TC Head Azimuth Adjustment ......... 3-773-3-8. Audio/TC Head Head-to-tape Contact

Adjustment ................................................. 3-813-3-9. Audio/TC Head Position Adjustment .......... 3-873-3-10. Audio Level Adjustment in REV Mode ....... 3-89

3-4. TAPE TENSION CHECK AND ADJUSTMENT .. 3-93

4. ELECTRICAL ALIGNMENT OVERVIEW

4-1. MEASURING EQUIPMENT ................................ 4-14-2. INTERNAL TEST SIGNAL GENERATOR .......... 4-2

4-2-1. D-1 Format ................................................. 4-34-2-2. Betacam Format......................................... 4-6

4-3. INITIALIZATION OF NV-RAM'S DATA ............... 4-74-4. MAINTENANCE MODE

(MANUAL ADJUSTMENT) .................................. 4-94-4-1. Servo System Adjustment Mode ................ 4-94-4-2. Analog DT System Adjustment Mode

(for DVW-A500P/A510P) ........................... 4-11

2-65DVW-A500P/500P/A500/500DVW-A510P/510P/A510/510

2-10. THREADING MOTOR REPLACEMENT

Outline

Replacement

1. Remove the Plate MR.

2. Disconnect the Connectors (CN920/CCM-15 Board, CN233/HN-184 Board)

3. Remove the Gear Box Assembly

4. Remove the Threading Motor

5. Remove the CCM-15 Board

6. Install the CCM-15 Board

7. Smear Grease

8 Install the Threading Motor

9. Install the Gear Box Assembly

10. Connect the Connectors (CN920/CCM-15 Board, CN233/HN-184 Board)

11. Install the Plate MR

Adjustment after Replacement

12. Confirm the Threading Motor Operation(Refer to Section 5-2 in Maintenance Manual Part 1.)(C012: THREADING MOTOR)

Tools

• L-shaped wrench (1.27 mm): 7-700-736-01• Locking compound: 7-432-114-11• Grease (PG-662): 7-651-000-59• Thickness gauge: 9-911-053-00

2-10. THREADING MOTOR REPLACEMENT

3-93DVW-A500P/500P

DVW-A510P/510P

Screw (B2 x 5)

Screw (B2 x 5)

Brush/Slip ring cover

Tension measurement jig Tape

Tension meter

3-4. TAPE TENSION CHECK AND ADJUSTMENT

Tools

. Tension measurement jig (PG-274)for NTSC model: J-7032-740-Afor PAL model: J-7032-740-B

. Tension meter: Tentel Corp. T2-H7-UMC

. Locking compound: 7-432-114-11

Tension Measurement Jig and Tension Meter

Remove the Brush/Slip Ring Cover

Check

1. Turn on the power and keep it more than halfan hour.

2. Calibrate the Tension meter, referring to itsOperation Manual.

3. Insert the probes of the Tension meter to theTension measurement jig.

4. Pull out the tape from the cassette incorporat-ed in the tension measurement jig. Thread thetape through the probes of the tension meteras shown in the illustration.

5. Turn off the power.

6. Remove the following parts.. Cassette compartment (Refer to the Mainte-

nance Manual Part 1 Section 1-2-2.). Video head cleaner assembly (Refer to

Section 2-17.). Upper drum cover (Refer to Section 2-12.). Brush/slip ring cover (See the illustration in

the right.)Caution. Don’t touch the brush/slip ring during the

state of power on as it is loaded by thehigh voltage.

. Turn the brush/slip ring counterclockwisein order to prevent it from interfering withthe tension measurement jig.

7. Turn on the power.8. Press the EJECT button.9. Press the S700 switch on the SS-52 board to

shift the reel tables to the position of S cas-sette (Refer to the Maintenance Manual Part 1Section 1-10-1.)

10. Put the tension measurement jig attached withthe tension meter on the reel tables.


3-94 DVW-A500P/500P

DVW-A510P/510P

Fixing screw

Notch

S tension regulator assembly

11. Press the STOP button. Now the tape isthreaded.

12. Press the PLAY button and then check thevalue of the tension meter.Specification:Value of the tension meter = 32 ±3 gCheck that the tape runs in the stable state byobserving the SAT ENV signal. (Refer to theMaintenance Manual Part 1 Section 8-4-3.)If the value is not fulfilled, perform adjustmentaccording to the step 17.

13. Press the EJECT button.14. Turn off the power.15. Remove the Tension measurement jig.16. Attach the following parts.

. Brush/slip ring cover

. Upper drum cover

. Video head cleaner assembly

. Cassette compartment

Adjustment(continued from the step12)

17. Loosen the fixing screw shown in the illustra-tion as much as 1/2 turn.

18. Put a flat blade screwdriver in the notch shownin the illustration and turn it, reading the valueon the tension meter.Specification:Value of the tension meter = 32 ±3 g

19. When the value of the tension meter satisfieswith the specification, tighten the fixing screwand reassure that the value of the tensionmeter still satisfies with the specification.If the value should be out of the specification,then repeat adjustment resuming the step 17.

20. Press the EJECT button.21. Turn off the power.22. Remove the tension measurement jig.23. Paste the locking compound for the fixing

screw.24. Attach the following parts.

. Brush/slip ring cover

. Upper drum cover

. Video head cleaner assembly

. Cassette compartment

S Tension Regulator Assembly


3-95DVW-A500P/500P

DVW-A510P/510P

Tension Offset Adjustment & Data Saving

25. Turn on the power.26. Perform the tension offset adjustment.

(Refer to Maintenance Manual Part 1 Section5-7-1.)

27. Save the adjustment data.(Refer to Maintenance Manual Part 1 Section5-7-1.)

Tape-running Check

In case that the adjustments have been performedin line with the procedures of the item 17 afterward,it needs for you to check the tape-running, too.(Refer to the Maintenance Manual Part 1 Section8-4-2.)


5–68 (b) DVW–A500P/500PDVW–A510P/510P

Adjustments

A19: ADV LEVELAch LEVELCch LEVEL

TRIG:TP103/EQ-45(C-1)

A19: ADV LEVELBch LEVELDch LEVEL

TRIG:TP103/EQ-45(C-1)

Specifications

OscilloscopeTP423/EQ-45(*F-1)

A = 800 ±100 mV

OscilloscopeTP523/EQ-45(*E-1)

A = 800 ±100 mV

Preparations for adjustment

• Enter “A19:ADV LEVEL” menuin the “A1:RF ADJUST” modeat the maintenance mode.

Step 1• Connect CH1 and CH2 of the

oscilloscope to TP103 andTP423 on the EQ-45 board.

• Play back the alignment tapeZR5-1P.




5-4-2. Envelope Level Adjustment (for Board Suffix No. -15 and later)

5-4-2. Envelope Level Adjustment (-15 and later)

Board suffix No.15 and later (A SIDE)

TP423 TP523

G F E D C B A

1

2

TP1031

2

GFEDCBA

∗ : Board suffix No.15 and later (B SIDE)

5–69 (b)DVW–A500P/500PDVW–A510P/510P

Specifications

OscilloscopeTP623/EQ-45(*C-1)

A = 800 ±100 mV

OscilloscopeTP723/EQ-45(*B-1)

A = 800 ±100 mV


Step 3 (for DVW-A500P/500P only)• Enter “A1A:CNF LEVEL” menu.• Connect CH1 and CH2 of the



Step 4 (for DVW-A500P/500P only)• Connect CH1 and CH2 of the

oscilloscope to TP105 andTP723 of the EQ-45 board.


Adjustments

A1A:CNF LEVELAch LEVELCch LEVEL

TRIG:TP105/EQ-45(B-1)

A1A:CNF LEVELBch LEVELDch LEVEL

TRIG:TP105/EQ-45(B-1)

5-4-2. Envelope Level Adjustment (-15 and later)

• Save adjustment data. A1F: NV-RAM CONTROL SAVE ALL ADJUST DATA

∗ : Board suffix No. 15 and later (B SIDE) Board suffix No. 15 and later (A SIDE)

TP623 TP723

G F E D C B A

1

2

TP1051

2

GFEDCBA

5–71 (b)DVW–A500P/500PDVW–A510P/510P

5-4-3. Delay Adjustment (-15 and later)

Adjustments

ADV AC DELAY1 RV401/EQ-45(G-3)

TRIG:CH1

ADV BC DELAY1 RV501/EQ-45(E-3)

TRIG:CH1

CNF AC DELAY1 RV601/EQ-45(C-3)

TRIG:CH1

CNF BD DELAY1 RV701/EQ-45(B-3)

TRIG:CH1

Specifications

OscilloscopeTP421 - TP422

A=3.8 ±0.2 ns


A=3.8 ±0.2 ns


A=3.8 ±0.2 ns


A=3.8 ±0.2 ns



oscilloscope to TP421 and TP422on the EQ-45 board.

• Display CH1 only, and adjust “HPOSITION” so that cross point ofthe bright lines is as shown in theFig. A.

• Display CH2 only. (Fig. B)





Step 3 (for DVW-A500/500 only)• Connect CH1 and CH2 of the




Step 4 (for DVW-A500/500 only)• Connect CH1 and CH2 of the




TP422TP522TP622TP722TP421TP521TP621TP721

RV401RV501RV601RV701

1

2

3

4

5

6

7

GFEDCBA

Board suffix No. 15 or 16

TP722TP721

TP622 TP422TP421TP621

TP522TP521

RV401RV701 RV601 RV501

A B C D E F G

1

7

6

5

4

3

2

Board suffix No. 17

5–72 (b) DVW–A500P/500PDVW–A510P/510P

5-4-4. VREF Adjustment (for Board suffix -15 and later)

Before performing this adjustment, section 5-6-2. ADV Level Adjustment and section 5-6-3. CNF Level Adjustment should be completed.


Step 1• Set to STOP mode.• Connect the + side of the digital

voltmeter to TP808, and the _side to TP403.

• Insert the alignment tape ZR5-1P,and set to PLAY mode.

Step 2• Connect the + side of the digital



Step 3 (for DVW-A500P/500P only)• Connect the + side of the digital



Step 4 (for DVW-A500P/500P only)• Connect the + side of the digital



Adjustments

ADV AC VREF1RV802/EQ-45(F-1)

ADV BD VREF1RV804/EQ-45(E-1)

CNF AC VREF1RV902/EQ-45(C-1)

CNF BD VREF1RV904/EQ-45(B-1)

Specifications

Digital Voltmeter+ TP808/EQ-45(F-2)_ TP403/EQ-45(F-2)

660 ±2 mV

Digital Voltmeter+ TP809/EQ-45(D-2)_ TP503/EQ-45(D-2)

660 ±2 mV

Digital Voltmeter+ TP908/EQ-45(C-2)_ TP603/EQ-45(C-2)

660 ±2 mV

Digital Voltmeter+ TP909/EQ-45(A-2)_ TP707/EQ-45(A-2)

660 ±2 mV

5-4-4. VREF Adjustment (-15 and later)

TP403TP503TP603TP707TP808TP809TP908TP909

RV804 RV802RV902RV9041

2

3

4

5

GFEDCBA


TP808TP909 TP908 TP809TP707 TP403TP603 TP503

A B C D E F G

1

5

4

3

2

RV904 RV902 RV804 RV802

Board suffix No. 17

DVW–A500P/500PDVW–A510P/510P

5–74

Adjustments

ADV AC PLL FREE RUN1RV801/EQ-45(G-4)(*G-5)

ADV BD PLL FREE RUN1RV803/EQ-45(F-4)(*F-5)

CNF AC PLL FREE RUN1RV901/EQ-45(D-4)(*C-5)

CNF BD PLL FREE RUN1RV903/EQ-45(B-4)(*B-5)

Specifications

Spectrum analyzerTP801/EQ-45(F-4)(*G-4)TP802/EQ-45(E-4)TP901/EQ-45(C-4)TP902/EQ-45(A-4)

66.16 ±0.10 MHz(*65.03 ±0.10 MHz)

*: For suffix No. 11/12/13/22/23/31/41 of the EQ-45 board.


• Connection 1.• Eject a cassette tape.• Enter ” C2: AUDIO/VIDEO

CHECK” mode at themaintenance mode.

• Enter ” C20: SYSTEM EE” menuand select ”RF 1”.

Step 1• Connect CH2 of the oscilloscope

to TP801 on the EQ-45 board.

Step 2• Connect CH2 of the oscilloscope


Step 3 (for DVW-A500P/500P only)• Connect CH2 of the oscilloscope


Step 4 (for DVW-A500P/500P only)• Connect CH2 of the oscilloscope


5-4-5. PLL Free Run Adjustment

Board suffix No. 11, 12, 13, 22, 23, 31 or 41

A

A B C D E F G

1

2

3

4

5

6

7

A B G

1-6

48

-53

6-

MA

DE

IN J

AP

AN

1

2

3

4

5

6

7

EQ - 45ACNF BDEQ

ADVBD EQ

C D E F

ADV AC EQ

CNF BDPLL/VIT ADV AC

PLL/VIT

RECEQIF

CN

F A

CP

LL/V

IT

AD

V B

D

PLL

/VIT

Y/C

RF

TP801TP802TP901TP902

TP103TP104

TP105


TP106


TP801TP802TP901TP902


1

2

3

4

GFEDCBA

TP801TP902 TP901 TP802

RV801RV903 RV901 RV803

A B C D E F G

1

4

3

2

Board suffix No. 17

DVW-A500P (UC,EK)

DVW-500P (UC,EK)

DVW-A500P/1 (UC,EK)

DVW-500P/1 (UC,EK)

DVW-A510P (EK)

DVW-510P (EK)

DVW-CA510P (EK) E

9-967-510-07

Printed in Japan

Sony Corporation 2003. 12 08

B&P Company © 1993

Documents

Service Manual Digital VCR DVWA500P Vol1 part2