Philips CEM-2000, CEM-2000-B Service Manual

Car entertainment system

CEM2000/00/55/51

CEM2000X/78

CONTENTS

Technical specification ..................................................................1-2

Service measurement setup..........................................................1-3

Service aids .................................................................................1-4

Instructions on CD playability ...............................................2-1.. 2-2

Block diagram ................................................................................3-1

Wiring diagram ..............................................................................4-1

Main board

Circuit diagram ..................................................................5-1..5-5

Layout diagram..................................................................5-6..5-7

Panel board

Circuit diagram .........................................................................6-1

Layout diagram..................................................................6-2..6-3

Servo board

Circuit diagram..........................................................................7-1

Layout diagram ..................................................................7-2..7-3

Exploded view diagram .................................................................8-1

Revision list ...................................................................................9-1

©

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

Published by LX 1046 Service Audio Subject to modification

Version 1.1

3141 785 35131

TECHNICAL SPECIFICATION

1 - 2

General inforamtion

Power supply 12 V DC (11 V - 16

V), negative ground Fuse 15 A Suitable speaker

4 - 8 impedance

Maximum power

45 W x 4 channels output

Continuous power output

Pre-Amp output

22 W x 4 RMS (4

10% T.H.D.)

2.0 V

voltage Aux-in level

500 mV

Dimensions (W x H x D) 188 x 58 x 201 mm

Weight 1.47 kg

VERSION VARIATION

Type /Versions:

Board in used:

SERVO BOARD MAIN BOARD

Service policy

/00 /00

Europe

C

APAC

C/M C/M

Radio

Frequency range

- FM

Frequency range

- AM(MW) Usable sensitivity

- FM Usable sensitivity

- AM(MW) (S/N = 20 dB)

CEM2000

/55

C/M C/M

87.5 - 108.0 MHz (100kHz per step in auto search and 50kHz per step in manual search)

522 - 1620 KHz (9 kHz) 530 - 1710 kHz (10 kHz)

8 µV

30 µV

15/16/85/

C C

Type /Versions:

Features

RDS VOLTAGE SELECTOR ECO STANDBY - DARK

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

Feature diffrence

/05 /12

CEM2000

/55

15/16/85/

e

MEASUREMENT SETUP

Tuner FM

1-3

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50:

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).

Tuner AM (MW,LW)

RF Generator

e.g. PM5326

Ri=50:

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

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).

CD

Use Audio Signal Disc (replaces test disc 3)

DUT

L

R

SBC429 4822 397 30184

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

-

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette

LF Generator

e.g. PM5110

Fe SBC420 4822 397 30071

DUT

L

R

S/N and distortion met

e.g. Sound Technology ST170

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-4

GB

All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential.

WARNING

GB

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used

Safety components are marked by the symbol

!

.

ESD

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

2 - 1

playability

ok ?

Y

Play a CD

for at least 10 minutes

check playability

playability

ok ?

Y

N

"fast" lens cleaning

check playability

playability

ok ?

N

3

N

Y

For flap loaders (= access to CD drive possible) cleaning method

4 is recommended

add Info for customer

"SET OK"

2

return set

1 - 4 For description - see following pages

Exchange CDM

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

1

PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

use 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 disturbance playing time for: Fingerprint

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 01:15 TR 19 (Fingerprint) TR 10 (1000µ wedge)

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

Fingerprint 10seconds Black dot from 01:05 to 01:25

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

10seconds

4

LIQUID LENS CLEANING

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

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

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

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

2

CUSTOMER INFORMATION

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

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

SET BLOCK DIAGRAM

3 - 1

Ｓ５Ｌ８０３０

８Ｍ　ＦＬＡＳＨ

１１１７－ＡＤＪ

４ｘ１６Ｍ　ＳＤＲＡＭ

ＳＡ５８８８　ＭＯＴＯＲ　ＤＲＩＶＯＥ

４５５８

１１１７－３．３Ｖ

ＡＭＰ　ＴＤＡ７３８８

ＬＩＮＥ　ＯＵＴ

ＡＮＴ

ＩＳＯ

ＲＡＤＩＯ　ＴＤＡ７７０３

４５５８

ＶＯＬ　ＩＣ　７３１３

７８０９

２０Ｐｉｎ　ＦＦＣ

ＭＣＵ

２２Ｐｉｎ　Ｃｏｎｎｅｃｔｏｒ　　

ＴＯ　ＰＡＮＥＬ

Ｗｉｒｉｎｇ　ｄｉａｇｒａｍ

ＳＥＲＶＯ　　Ｂｏａｒｄ

Ｍａｉｎ　Ｂｏａｒｄ

２０Ｐｉｎ　ＦＦＣ

　＋５Ｖ　ＩＣ

Ｒｅｓｅｔ　ｓｗ

CIRCUIT DIAGRAM - MAIN BOARD MCU PART

5 - 15 - 1

CIRCUIT DIAGRAM - MAIN BOARD Power PART

5 - 2

CIRCUIT DIAGRAM - MAIN BOARD Radio PART

5 - 3

CIRCUIT DIAGRAM - MAIN BOARD Audio PART 1

5 - 4 5 - 4

CIRCUIT DIAGRAM - MAIN BOARD Audio PART 2

5 - 5 5 - 5

LAYOUT DIAGARM - MAIN BOARD TOP SIDE VIEW

5 - 6

LAYOUT DIAGARM - MAIN BOARD BOTTOM SIDE VIEW

5 - 7

CIRCUIT DIAGARM - PANEL BOARD

6 - 1 6 - 1

R935

CON1

AUX IN

NC

USB_UP

USB_DN

USB_5V

GND

SYS_5V

BT_LED

LAMP_VCC

2COLOR

REMOTE

ENCODER

24PIN-CON

KEY 2

AUX_R

AUX_L

GND

AUX1

NC

R936

GND

INH

DATA

CLK

CE

+5V

GND

KEY 1

Q904

ZR902

22P

R939

NC

1

2

3

R963

RED+8V

NC

RED+8V

Q901

NC

R938

NC R937

RED+8V

BLUE+8V

R965

NC

Q905

NC

R966

R934

USB-GND

22

21

20

19

USB+5V

1 2

USB

3

USBIN

4

18

17

16

15

14

BLUE+8V

270

NC

390

NC

270

NC

R9640R

270

NC

270

NC

390

NC

123456789

10

111213141516171819202122232425262728293031

BLUE+8V

NC

Q903

NC

Q902

270

R981

NC

R980

LED15

LED17

R+B

LED19

R+B

270

R975

330

R959

R940

LED

NC

R976

LED16

R+B

330

R960

R941

390

R955

LED20

LED

R931

LED4

R+B

R933

R932

R930

R942

LED3

270

R961

R+B

NC

R954

LED21

LED

R943

390

R956

LED5

R+B

270

R962

22

R944

22

LED6

R+B

NC

R957

LED22

LED

2P

C905

R945

270

R969

LED8

R+B

6V8

ZD901

LED7

R946

R+B

R970NCR971

2P

C903

R947

390

R948

LED10

R+B

LED9

R+B

NC

R972

6V8

ZD902

2P

C906

LED11

R949NCR950

270

R967

LED12

R+B

ZD903

R951

R+B

270

R968NCR973

R+B

6V8

2P

C908

R952

R+B

NC

R974

LED14

6V8

ZD904

R953

270

R979

R+B

C902

LED13

104

NC

R977

LED2

S51

S55

S54

S53

S49

S50

S1S2S3S4S5S6S7S8S9

R958

47K

C901

680P

S55 S54

S53 S52

S[0:100]

S51 S50 S49

S10

S11

S12

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

CEM2000-LCD

LCD1

32333435363738394041424344

S13

S14

S15S1S16

S17

S18

S2S3S4S5S6S7S8

S19

S20

S21

S22

S23

S24

S25

S44

S26

S27

S9

123456789101112131415

DO

CLK

CE

OSC

VSS

IC901

SC75823

INH

VDD

41

44

45

48

46

47

S44

S45

S46

S48 S1

S47

43

S43

42

S42

S41

40

S40

S28

S10

39

S39

S29

38

S52

S11

S38

S16

S12

37

S37

S30

36

S31

S13

S36

45

464748495051525354555657585960

S32

S33

S34

S35

S36

S37

S38

S39

S55

S53

S14

S15

S16

16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

34

35

33

S33

S34

S35

S54

S55

616263

S40

S41

S42

S43

S44

S45

S46

S47

S48

S35

S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32

13

12

11

10

9

8

7

4K7

R902A

R901

180

SW1

FUNCTICN

6

SW2

FOLDER

R902

220

R903

330

SW3

FILE

SW4

DBB

R904

470

R905

680

SW5

EQ/SEL

SW6

SOURCE

R906

1K

SW7

BACK

R907

1K5

R908

2K2

SW8

TUNE/SEEK-UP

TRACK-UP TRACK-DN

SW9

TUNE/SEEK-DN

5

4

22P

ZR901

USB+5V

EC904

10uF

USB-GND

104

C907

EN901

EN

82K

R927

47K

R928

POWER

R929

10

R901A

EC901

10uF

4K7

SW20

EJ

R918

1K5

SW19

VOL+

R917

2K2

SW18

VOL-

R924

180

R923

220

R922

330

SW25

DISP

1 2 3

SW24

POWER/ MUT E

SW23

MENU

R921

470

R920

680

SW22

PRESET +

R919

1K

SW21

PRESET-

REMOTE

IC902

POWER

3

2

1

LAYOUT DIAGRAM - PANEL BOARD

6 - 2

CIRCUIT DIAGRAM - SERVO BOARD

7 - 1

LAYOUT DIAGRAM - SERVO BOARD TOP SIDE VIEW

7 - 2 7 - 2

LAYOUT DIAGRAM - SERVO BOARD BOTTOM SIDE VIEW

7 - 3 7 - 3

EXPLODED VIEW DIAGRAM

8 - 1 8 - 1

6501

6505

CD01

6503

6504

ASS02

6502

ASS05

PL01

Revision list

Version1.0 ( 3141 785 35130)

*Initial Release

Version1.1 ( 3141 785 35131) *New version 51 added.

9 - 1