Philips CED228/98 Bedienungsanleitung

Version 1.4

CED228/98/58

3141 785 34304

Car Entertainment System CED228X/78

Published by LX 1118 Service Audio Subject to modification

system or transmitted, in any form or by any means, electronic, mechanical, photocopying,

or otherwise without the prior permission of Philips.

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

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

Main board

Circuit diagram ..................................................................6-1..6-3

Layout diagram..................................................................6-4..6-5

Key board

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

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

SK & SD & Moto board

Circuit diagram .........................................................................8-1

Layout diagram..................................................................8-2..8-4

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

Mechanical parts list......................................................................9-2

Electrical parts list...............................................................10-1..10-2

Revision list...................................................................................11-1

Tuner

Frequency range

-FM

87.5 - 108.0 M H z

search and 50kHz per

Frequency range

522 - 1620 KHz

Usable sensitivity

-FM 8 uV

Usable s

ensitivity

50 uV

LCD

Screen size

Display resol

ion 320 x 234 dots

Contra

st rati

o350

Bri

ghtness 220 cd/m 2

General

Power supply

negative ground

Fuse 15 A

Suitable speaker

impedance

4 - 8

Maximum power

output

50 W x 4 channels

Continuous power

output

24 W x 4 channels

Pre-Amp output

voltage 1 kH z,0

dB,10 k

Subwoofer output

voltage

A ux-in level 500 m V

188 x 58 x 193 m m

Weight 1.7 kg

System D V D / C D audio /

MP3 system

Frequency response 20 Hz - 20kHz

Singal/noise ratio >75dB

Total harmonic

distortion

Less than 1%

Channel separation > 55dB

Video signalformat N TSC/PA L/A U TO

Video output 1 + /-0.2V

TECHNICAL SPECIFICATION

1 - 2

Type /Versions:

Features

Board in used:

CED228

Service policy

SK BOARD

MAIN BOARD

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

√-- Used

78/

Feature diffrence

RDS & DAB

VOLTAGE SELECTOR

ECO STANDBY - DARK √

Type /Versions:

/58 89/78/

VERSION VARIATION

89/

C/M

√

MOTO BOARD

PANEL BOARD

C/M

CED228

√

C/M

√

/58

SD BOARD

√

Disc player

1-3

LF Generator

e.g. PM5110

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion met

e.g. Sound Technology ST170

DUT

or Universal Test Cassette Fe SBC420 4822 397 30071

LEVEL METER

e.g. Sennheiser UPM550

with FF

filter

S/N and distortion meter

e.g. Sound Technology ST1700B

DUT

Use Audio Signal Disc

(replaces test disc 3)

SBC429 4822 397 30184

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

S/N and distortion meter

e.g. Sound Technology ST1700B

Frame aerial

e.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:

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

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 WARNING

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.

ESD

CLASS 1

LASER PRODUCT

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 !.

Lead free

Set remains closed!

Play a CD

for at least 10 minutes

playability

ok ?

playability

ok ?

add Info for customer

"SET OK"

check playability

playability

ok ?

check playability

return set

Customer complaint

"CD related problem"

"fast" lens cleaning

3For flap loaders (= access to CD drive possible)

cleaning method 4is recommended

INSTRUCTIONS ON CD PLAYABILITY

2 - 1

Exchange CDM

1-4For description - see following pages

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 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 01:15

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

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.

LIQUID LENS CLEANING

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.

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.

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

MAIN BOARD

SK BOARD

KEY BOARD J204

J502

J501

J302

J303

J201

J301

J206

SD BOARD

J701

MOTO BOARD

SP+1

SP-1

SL+1

SL-1

LIMIT1

GND1

LOAD+1

LOAD-1

WHITE

RED

BLACK

RED

ORANGE

BROWN

GREEN

YELLOW

ORANGE

YELLOW

SP MOTO

SL MOTO

DET SW

DVD DECK

DL-C86D1

WIRING DIAGRAM 3 -1

MOTO DRIVER

SA5888

OPTICAL PICKUP

DL-C86D1

DVD-DSP

SPHE8202TQ

EEPROM

24C02

FLASH 32M(bit)

SDROM

2M*16Bit*4Banks

SD/MMC CORD

USB PORT

SD/USD DET

MCU

STM8AH6189

KEY/RC

A/D

TFT DRIVER

AV268D

T30C17 TFT DISPLAY

SPI

A/D

DISC IN/OUT/DET

DISC

PWM

AM/FM TUNER MODUL

CF111LVD-150M

RDS DECORD

SC6579

ANT

VOL/EQ

TDA7419

VIDEO SWITCH

BA7654

MP3-LINK

AUDIO

VIDEO/IN

VIDEO AMP.

BAT623

LINE OUT

VIDEO-OUT1

VIDEO-OUT2

FL-OUT

FR-OUT

RL-OUT

RR-OUT

POWER

TDA7386

POWER

SUPPLY

TPS54331

14.4V

+5V

SET BLOCK DIAGRAM

4-1

5-1 5-1

DISASSEMBLY INSTRUCTIONS

Dismantling of the car audio system and the front panel

1)Press to open the panel,then push the right side panel toward the left side to disengage it from the chassis.

2)Remove 1 screw A and 1 screw B as indicated.

3)Remove the top and bottom lid as showin in the picture below with the help of a flat head screw driver.

4)Remove 2 screws C and 2 screws D as indicated to loosen the DVD mechanism.

5)Remove 4 screws E as indicated to loosen the main board.

FLAT HEAD SCREW DRIVE

6)Remove 6 screws F as indicated to loosen the front panel.

CAR AUDIO SYSTEM

BACK PANEL

FRONT PLATE + KEY BOARD

FRONT PANEL

TRIM PLATE

6-1 6-1

CIRCUIT DIAGRAM - MAIN BOARD

PART 1

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