Philips CE120X/78CE120/55 Manual de usuario

CE120/55

transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without

the prior permission of Philips.

Published by JZ-SL 0847 Service Audio Printed in The Netherlands Subject to modification

Car Entertainment System

Version 1.2

CLASS 1

LASER PRODUCT

TABLE OF CONTENTS Page

PCBs Location......................................................................1-1

Speciﬁcations .......................................................................1-2

Measurement Setup.............................................................1-3

Service Aids, Safety Instruction, etc.....................................1-4

Disassembly Diagrams...............................................2-1 to 2-2

Software Version Check & Upgrade.....................................3-1

Malfunction Check Chart......................................................3-2

Set Block Diagram................................................................4-1

Set Wiring Diagram ..............................................................5-1

Main Board..............................................................................6

Servo Board.............................................................................7

SD Board.................................................................................8

Key Board................................................................................9

Set Mechanical Exploded View & Parts List..........................10

CE120X/78

Revision List...........................................................................11

1-1

Location of PCBS

Service policy

SERVO BOARD

SD/USB BOARD

KEY BOARD

/55

CE120

VERSION VARIATIONS:

Type/Versions

Board in used:

CE120

MAIN BOARD

Feature diffrence

Features

* TIPS:C--Component Lever Repair.

M--Module Lever Repair

--Used

MAIN BOARD SERVO BOARD KB BOARD SD BOARD

SPECIFICATIONS

1-2

USB/SD card Player

System:

Frequency response:

Signal/noise ratio:

Total harmonic distortion:

Channel separation:

Disc digital audio system

20 Hz - 20KHz

>80 dB

Less than 0.20%(1KHz)

>60 dB

General

Power supply:

Maximum power output:

Suitable speaker impedance:

Pre-Amp output voltage:

12V DC(11V-16V)

Test voltage 14.4V, negative ground

45Wx4 channels

4-8 ohm

Fuse:

Dimensions(WxHxD)

Weight:

15A

178x50x155mm

1.64kg

2.0V

Components

Mounting collar

Tapping screws M5x6 mm 4

M4x6 mm 4

Mounting bolt (50 mm) 1

Wire connector

Trim plate 1

T-key 2

Rubber cushion 1

User manual

Case for removable control panel

Note: Specifications and design are subject to change

without notice for product improvements.

AM Radio

Frequency range:

Sensitivity(S/N=20dB):

530-170 KHz

30 dBμ

FM Stereo Radio

Frequency range:

Sensitivity:

Frequency response:

Stereo separation:

Image response ratio:

IF response ratio:

Signal/noise ratio

10 dBμ

30Hz-15KHz

30dB(1KHz)

50dB

70dB

55dB

87.5 - 107.9MHz

MEASUREMENT SETUP

Tuner FM

DUT

RF Generator

Bandpass

LF Voltmeter

e.g. PM5326

250Hz-1 5kHz

e.g. 7122 707 48001 e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

Ri=50Ω

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

Tuner AM (MW,LW)

DUT

RF Generator

Bandpass

LF Voltmeter

e.g. PM5326

250Hz-1 5kHz

e.g. 7122 707 48001 e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

Ri=50Ω

Frame aerial

e.g. 7122 707 89001

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 ).

1-3

1-4

SERVICE AIDS

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

Disassembly Diagram

2-1 2-1

1、pull out the mounting collar from the

main set with two L-keys.

2、Press the release key and take out the panel 3、Take out the top cover with a forceps.

4、Take out the bottom cover with a forceps. 11

5、loosen and take out the five bolts

① with a screw-driver.

6、loosen and take out the three bolts

② with a screw-driver,

then pull out the two connection-pegs

③ carefully .

7、pull out the connection-peg ④ carefully

5566

8、loosen and take out the bolt ⑤ with

a screw-driver.

9、loosen and take out the bolt ⑥ with

a screw-driver.

10、loosen and take out the bolt ⑦ with

a screw-driver.

Disassembly Diagram

2-2 2-2

11、Seperate the panel housing with fingers first.

Then pull out the connection-peg ⑧.

12、Take out the knob from panel. 13、Take out the six bolts ⑨with a screwdriver.

3-1 3-1

Software version check & upgrade Upgrade software

Upgrade software Upgrade software

VS-104

Check Servo software version

Check MCU software version

VM-103

1. In USB/SD/Disc mode, press DISP + 6 simutaliously

for 2 sec, LCD display is as below:

1. In tuner mode, press DISP + 6 simutaliously for 2 sec,

LCD display

is as below:

102 is the servo software version

103 is the MCU software version

1、Copy servo software "BOOT.ALI" and "nemo.bin" into USB memory,

plug the USB memory into USB socket.Device upgrade servo software

automatically,Don't power off or disconnect power during the upgrade,

LCD show:

SERVO UPGRADING,,,DON'T PWR OFF

Around 1 minute,servo software upgrade completed and device change

to radio mode automatically

2、Delete the servo software in the USB and copy the MCU software

"CE120MCU" (for CE120) into USB memory, plug the USB memory

into USB socket.Device upgrade MB software software automatically

Don't power off or disconnect power during the upgrade, LCD show:

Around 1 minute,MB software upgrade completed and device power

off automatically,disconnect the USB memory.

MCU UPG

3-2 3-2

Malfunction check chart

TDA7388 of AMP

Power components

Power

Check USB/SD output

Components

Check tuner circuit and

its conjoint part is

good or bad

Change the tuner

USB/SD

Check USB/SD control

USB/SD circuit

Check the related

components of USB/SD

signal channel,cable,

socket is good or bad

Check whether read

SD card,and its functions

Fix the wire

4-1 4-1

SET BLOCK DIAGRAM

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