Version 1.0

CED370/00/51/93/94/58/55

3141 785 35220

Car Entertainment System

Published by LX 1023 Service Audio Subject to modification

© Copyright 2010 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmitted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.

CONTENTS

�Technical specification ..................................................................1-2Service measurement setup..........................................................1-3

Service aids .................................................................................1-4Instructions on CD playability ................................................2-1..2-2

Block diagram................................................................................3-1Wiring diagram...............................................................................4-1

Disassembly diagram............ ........................................................5-1

Main board Circuit diagram ..................................................................6-1..6-5 Layout diagram ..................................................................6-6..6-7

SD board Circuit diagram .........................................................................6-4 Layout diagram .........................................................................6-8

DVD board Circuit diagram .........................................................................7-1 Layout diagram .........................................................................7-2

Key/SK board Circuit diagram ..................................................................8-1..8-3 Layout diagram ..................................................................8-4..8-5

Exploded view diagram .................................................................9-1

General

Power supply 12 V DC (11 V - 16 V),negative ground

Fuse 15 ASuitable speakerimpedance

4 - 8

Maximum poweroutput

40 W x 4 channels

Continuous poweroutput

22 W x 4 channels(4 10% T.H.D.)

Pre-Amp outputvoltage

2.0 V ( CD play mode;1 kHz, 0 dB, 10 k load)

Subwoofer outputvoltage

2.0 V (CD play mode,61 Hz, 0 dB, 10 k load)

Aux-in level 500 mVDimensions(W x H x D)

178 x 100 x 160 mm

Weight (main unit) 2.5 kg

Disc player

System DVD / CD audio / MP3 system

Frequency response 20 Hz - 20k HzSignal/noise ratio >75dBTotal harmonicdistortion

Less than 1%

Channel separation >55dBVideo signal format NTSC onlyVideo output 1 +/- 0.2V

Tuner

Frequency range - FM 87.5 - 108.0 MHz(Europe)

Frequency range - AM (MW)

522 - 1620 KHz(Europe)

Usable sensitivity - FM 5 uVUsable sensitivity - AM (MW)

50 uV

LCD

Screen sizeDisplay resolution 320 x 240 dotsContrast ratio 300Brightness 350 cd/m2

Bluetooth

Communicationsystem

Bluetooth Standard version2.0

Output Bluetooth Standard PowerClass 2

Maximumcommunicationrange

Line of sight approx. 8m

2.4835 GHz)CompatibleBluetooth

Advanced Audio

Audio Video Remote

SupportedcodecsReceiveTransmit

SBC (Sub Band Codec)SBC (Sub Band Codec)

Compatible USB devices:

memory cards (SD / MMC / SDHC)

TECHNICAL SPECIFICATION

1 - 2

Type /Versions:

Features

Board in used:

CED370

Service policy

SK BOARDMAIN BOARD

* TIPS : C -- Component Lever Repair.M -- Module Lever Repair

-- Used

/55 /00 /51 89/39/85/

Feature diffrenceRDSVOLTAGE SELECTORECO STANDBY - DARK

C/MC/M

Type /Versions: CED370

/55 /00 /55 89/39/85/

VERSION VARIATION

C/MC/M

C/MC/M

DVD BOARDSD BOARD

49/

C/MC/M

C/MC/M

C/MC/M

C/MC/MC/MC/M

C/MC/M

C/MC/M

C/MC/M

C/MC/M

C/MC/M

C/MC/M

49/

1-3

LF Generator e.g. PM5110

RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069

LEVEL METERe.g. Sennheiser UPM550

with FF-filter

S/N and distortion metee.g. Sound Technology ST170

L

R

DUT

or Universal Test Cassette Fe SBC420 4822 397 30071

LEVEL METERe.g. Sennheiser UPM550

with FF-filter

S/N and distortion metere.g. Sound Technology ST1700B

L

R

DUT

CDUse Audio Signal Disc(replaces test disc 3)

SBC429 4822 397 30184

Bandpass250Hz-15kHz

e.g. 7122 707 48001LF Voltmeter

e.g. PM2534DUT

S/N and distortion meter e.g. Sound Technology ST1700B

Frame aeriale.g. 7122 707 89001

Tuner AM (MW,LW)

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

RF Generator e.g. PM5326

Ri=

50

Bandpass250Hz-15kHz

e.g. 7122 707 48001LF Voltmeter

e.g. PM2534DUT

RF Generator e.g. PM5326

S/N and distortion meter e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Ri=

50

Tuner FM

MEASUREMENT SETUP

1-4

SERVICE AIDS

GB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep components and tools also at thispotential.

ESD

CLASS 1LASER PRODUCT

GBSafety regulations require that the set be restored to its originalcondition and that parts which are identical with those specified,be usedSafety components are marked by the symbol ! .

Lead free

Set remains closed!

N

Y

Play a CD for at least 10 minutes

Y

playabilityok ?

Nplayabilityok ?

add Info for customer"SET OK"

check playability

N

Y

playabilityok ?

check playability

check playability

return set

Customer complaint"CD related problem"

"fast" lens cleaning

1

2

3For flap loaders (= access to CD drive possible)cleaning method 4 is recommended

INSTRUCTIONS ON CD PLAYABILITY

2 - 1

Exchange CDM

1 - 4 For description - see following pages

1PLAYABILITY CHECK

For sets which are compatible with CD-RW discsuse CD-RW Printed Audio Disc ....................7104 099 96611

TR 3 (Fingerprint)TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbanceplaying time for: Fingerprint 10seconds

Black dot from 00:50 to 01:10• jump forward/backward (search) within a reasonable time

For all other sets use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15TR 19 (Fingerprint)TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbanceplaying time for: 1000µ wedge 10seconds

Fingerprint 10secondsBlack dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

2CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set whichinforms the customer that the set has been checkedcarefully - but no fault was found.The problem was obviously caused by a scratched, dirty orcopy-protected CD. In case problems remain, the customeris requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in theaddendum sheet.

The final wording in national language as well as the printingis under responsibility of the Regional Service Organizations.

4LIQUID LENS CLEANING

Because the material of the lens is synthetic and coatedwith a special anti-reflectivity layer, cleaning must be donewith a non-aggressive cleaning fluid. It is advised to use“Cleaning Solvent

The actuator is a very precise mechanical component andmay not be damaged in order to guarantee its full function.Clean the lens gently (don’t press too hard) with a soft andclean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated inthe picture below.

Before touching the lens it is advised to clean thesurface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

BLOCK DIAGRAM3-1

MO

TO

DR

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R

SA

5888

OP

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UP

DR

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DV

D-D

SP

SP

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8202TQ

EE

PR

OM

24C02

FLASH 32M(bit)

SDROM

2M*16Bit*4Banks

SD/MMC CORD

USB PORT

SD

/US

D D

ET

MC

U

ST

M8A

udio

KE

Y/R

C

A/D

TF

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AM

/FM

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NE

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111LVD

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A7478

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MP

1584

14.4V

+5V

SD

-2.5VU

SB

-3.5VS

D+

US

B-2.0V

BT

MC

S(M

B0502)

GP

S M

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12C

12C

NJM

4556

SU

B-W

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FE

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4556

Audio

Audio

Audio

SU

B-W

OF

FE

R-O

UT

MAIN BOARD

SK BOARD

KEY BOARD

J504

J502

J506

J201J107

J109

J102

J306

J303

J202

J501

SD BOARD

DVD BOARD

WIRING DIAGRAM4-1

6-1 6-1

CIRCUIT DIAGRAM - MAIN BOARDPART1 FOR MCU

6-2 6-2

CIRCUIT DIAGRAM - MAIN BOARDPART2

6-3 6-3

CIRCUIT DIAGRAM - MAIN BOARDPART3 FOR SD

6-4 6-4

CIRCUIT DIAGRAM - MAIN BOARDPART4

6-5 6-5

CIRCUIT DIAGRAM - MAIN BOARDPART5

6-6 6-6

PCB LAYOUT - MAIN BOARDTOP SIDE VIEW

6-7 6-7

PCB LAYOUT - MAIN BOARDBOTTOM SIDE VIEW

6-8 6-8

LAYOUT DIAGRAM - SD BOARD

TOP SIDE VIEW BOTTOM SIDE VIEW

7-1 7-1

CIRCUIT DIAGRAM - DVD BOARD

7- 2 7- 2

PCB LAYOUT - DVD BOARD

TOP SIDE VIEW BOTTOM SIDE VIEW

8-1 8-1

CIRCUIT DIAGRAM - KEY BOARD/SK BOARDPART1

8-2 8-2

CIRCUIT DIAGRAM - KEY BOARD/SK BOARDPART2

8-3 8-3

CIRCUIT DIAGRAM - KEY BOARD/SK BOARDSK PART

8-4 8-4

PCB LAYOUT - KEY BOARD

TOP SIDE VIEW

BOTTOM SIDE VIEW

8-5 8-5

PCB LAYOUT - SK BOARD

TOP SIDE VIEW

BOTTOM SIDE VIEW

SET EXPLODED VIEW DIAGRAM

9-19-1