Philips CED-320 Service Manual
Car Entertainment System
CED320/55
CED320X/78
TABLE OF CONTENTS
Page
PCBs Location ......................................................................1-1
Specifi cations .......................................................................1-2
Measurement Setup .............................................................1-3
Service Aids, Safety Instruction, etc .....................................1-4
Instructures on CD Playability ....................................1-5 to 1-6
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
Conn. Board1 + AV Board .......................................................8
Conn. Board2 + SD Board .......................................................9
Long Board ............................................................................ 10
Key Board .............................................................................. 11
Set Mechanical Exploded View & Parts List ..........................12
©
Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
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 JZ-SL 0845 Service Audio Printed in The Netherlands Subject to modification
Version 1.1
CLASS 1
LASER PRODUCT
© 3141 785 33201
Location of PCBS
1-1
KEY BOARD
SERVO BOA RD
VERSION VARIATIONS:
Board inused:
Features
MAIN BOARD
SERVO BOA RD
KEY BOARD
CONNECT BOA RD
SD BOARD
CONNECT BOA RD 2
LONG BOARD
CONNECT BOA RD
Type/Versions
Service policy
Type/Versions
Feature diffr ence
/55
/55
SD BOARD
C
C
C
C
C
C
C
LONG BOARD
CED320
CED320
CONNECT BOA RD 2
MAIN BOARD
* TIPS:C--Compo ne nt L ever Repair.
M--Module Lever R ep ai r
--Used
SPECIFICATIONS
General Tuner
Power supply:
Fuse:
Suitable speake r im pe da nce:
Maximum power out pu t:
Continuous powe r ou tp ut:
Pre-Amp output vo lt ag e:
Subwoofer outpu t vo lt age:
Aux-in level:
Dimensions(Wx Hx D) :
Weight:
1-2
12V DC(11V- 16 V)
negative ground
15A
4-8Ω
50Wx4channels
24Wx4channels (4Ω 1 0% T .H. D. )
2. 0V(CD pl ay m od e; 1kHz, 0d B,
10KΩ load)
2. 0V (CD pla y mo de )
≥500mV
188x58x193mm
1. 9kg
Frequency range
-FM
Frequency range
-AM(MW)
Usable sensitiv it y
-FM
Usable sensitiv it y
-AM(MW)(S/N=2 0d B)
Frequency respo ns e
Stereo separati on
Signal/noise ra ti o
87.5-108 .0MHz(Eur)
65.0-74. 0 MHz(OIRT)
87.5-107 .9MHz(Ame)
522-1620KHz(E ur )
530-1710MHz(A me )
8uV
30uV
30Hz-15KHz
30db(1KHz)
＞55dB
Disc Player
System:
Frequency respo ns e:
Signal/noise ra ti o:
Total harmonic dist or ti on:
Channel separat io n:
Video sig na l fo r ma t:
Video out pu t:
LCD
Screen size:
Display resolut io n:
Active area:
Dot pitch:
Contrast ratio:
Brightness:
Disc digital audi o sy st em
20Hz-20k Hz
＞75dB
Less than 0. 3% (1 KHz)
＞55dB
NTSC/PAL /A UTO
1+/0.2V
3. 5 inches (1 6. 91)
320x234 dots
76.32x42 .822mm
0. 2385x0 .183mm
350
220cd/m
Components
Front panel carry c as e
Car audio system
Tri m pl ate
Remote control
Rubber cushion
Standard connec to r
Removal keys
Screws M5X6mm
User manual
Quike start guide
MP3- link w ir e
1
1
1
1
1
1
2
4
1
1
1
Note: Specifications and design are subject to change
without notice for product improvements.
MEASUREMENT SETUP
Tuner FM
1-3
Bandp as s
25 0Hz -1 5kH z
e.g . 7122 70 7 48001
LF Voltm et er
e.g . PM253 4
RF Gene ra tor
e.g . PM532 6
DUT
Ri=50Ω
S/N and d is torti on mete r
e.g . Sound Tec hnolo gy ST17 00B
Use a ban dp ass fil ter to el imina te h um(50 Hz,10 0H z) and di sturb ance fr om t he pilo ttone (1 9kH z, 38kHz ).
Tuner AM (MW,LW)
RF Gene ra tor
e.g . PM532 6
Ri=50Ω
DUT
Frame a er ial
e.g . 7122 70 7 89001
Bandp as s
25 0Hz -1 5kH z
e.g . 7122 70 7 48001
LF Voltm et er
e.g . PM253 4
S/N and d is torti on mete r
e.g . Sound Tec hnolo gy ST17 00B
To avoid at mo spher ic inte rfere nc e all AM-m easur em ents ha ve to be ca rried o ut i n a Farad ay s c age.
Use a ban dp ass fil ter ( or at l east a hi gh p ass fil ter wit h 250Hz ) to e limin ate hum ( 5 0H z,100 Hz ).
CD
Use Audi o Si gnal Di sc SBC4 29 4 822 397 3 0184
(repl ac es test d isc 3)
DUT
L
Cassette
Use Uni ve rsal Test Cass et te CrO2 S BC419 4 822 397 3 00 69
or Univ er sal Test Cas sette F e SB C420 48 22 397 30 07 1
LF Gene ra tor
e.g . PM5110
DUT
R
S/N and d is torti on mete r
e.g . Sound Tec hnolo gy ST17 00B
LEVEL METE R
e.g . Sennh eiser U PM550
wit h FF-fi lter
'
L
R
S/N and d is torti on mete r
e.g . Sound Tec hnolo gy ST17 00B
LEVEL METE R
e.g . Sennh eiser U PM550
wit h FF-fi lter
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 compla in t
"CD relate d pr ob le m"
Set remains closed!
Check playabili ty
①
1-5
playability
ok?
Y
Play a CD
for at le ast 10 mi nutes
check playability
playability
ok?
Y
N
"fast" lens cleaning
check playability
playability
ok?
Y
N
③
N
For flap loaders( =a cc ess to CD drive possibl e)
clesning method④i s re co mm ended
ann lnf o fo r custo mer
"SET O K"
return set
①-④For description -s ee f ollowing pages
②
Exchange CDM
1-6
Disassembly Diagram
2-1 2-1
main set with two L-ke ys.
4、Take out the bottom cove r with a forceps.
2、Press the release ke y first,
then take out the pane l.
3、Take out the top cover wit h a forceps. 1、Pull out the mountin g collar from the
5、loosen and take out th e bolt
①with a screw-drive r.
6、loosen and take out th e five bolts
②with a screw-drive r,
1
2
7、Pull out the two piece s of connection-pegs
③carefully
3
8、loosen and take out th e five bolts
④with a screw-drive r,
4
9、loosen and take out th e bolt
⑤with a screw-drive r,
5
Disassembly Diagram
2-2 2-2
10、loosen and take out t he bolt
⑥with a screw-drive r,
6
14、Loosen and take out t he five bolts
⑨with a screwdriver.
11、loosen and take out the bo lt
⑦with a screw-drive r,
7
12、Pull out the two piec es of connection-pegs
⑧carefully
8
13、Take out the knob from pa nel.
9
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