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Micro System MCM3350/12




TABLE OF CONTENTS Chapter
Location of PC Boards & Versions Variation ........................ 1
Technical Specifi ations................................. .................... 2
c
safety instruction...................................................................3

Set Block Diagram.................................................................4

Set Wiring Diagram ...............................................................5

Disassembly Diagram ........................................................... 6
Main Board
Circuit Diagram ................................................. ...........7-1
Layout Diagram.............................................................. 7-2
SMPS Board
Circuit Diagram..................................................... ...... ...
. .
Layout Diagram ...............................................................
Display Board
Circuit Diagram................................................................9-1
Layout Diagram ...............................................................9-2
Mechanical Exploded View ..................................................10
Trouble Shooting................................................................11
Software Upgrade & Procedure To Restore Product Setting............12
Revision list ......................................................................... 13




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All rights reserved. No part of this publication may be reproduced, stored in
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from Koninklijke Philips N.V.


Published by Liu wk1520.4 Subject to modification 3140 038 62780


Version 1.0
1 Location of PC Boards & Versions Variation
Location of PC Boards

SMPS Board Main Board




Display Board




V
Versiongs Variation
i V i ti

Type/Version MCM3350
/12
Board in used service Policy
y (EU)
( )
Main Board M+C
Display Board M+C
SMPS Board M+C

Tips:C Component
Tips:C--Component Level Repair
M--Module Level Rpair
2 Technical Specifcatons
MODEMCM3350

TEST CONDITIONS:

1.POWER SUPPLY: AC.Accordiing to Ver

2.REF OUTPUT: 650W , Sound effect off

3.FM MONO: 22.5KHz Dev,1KHz MODULATION ,75 IMPEDANCE ,60dBu

4.FM STEREO : MAIN+SUB = 50KHz, PILOT : 10KHz,COMPOSITE: 40.0KHz

FM SECTION

TEST DATA
NO TEST ITEMS UNIT NOM. LIMIT
1# 2#

87.5 87.5 87.5
1 Fvequency Range MHz
108 108 108

88 18 22 12 12

2 26dB QUENTING SENSITIVITY 98 dB 18 22 12 12

107 18 22 12 12

3 -3dB LIMITING POINT 98 dB 20 26 5 6

4 IF REJECTION 98MHZ 98 dB 65 60 >126 >126

5 IMAGE REJECT 98MHZ 107 dB 30 25 >126 >126

MONO 65 60 68 68
6 S/N
ST 55 50 59 58

7 OVERALL DISTERTION % 2 3 0.16 0.18

8 MODULATION HUM dB 50 45 / /

88MHz dBf 28 36 32 30

9 TUNING SENS 98MHz dBf 28 36 32 31

107MHz dBf 28 36 32 31

10 STREO CHANNEL SEPARATION 1KHZ Db 25 18 47 48

11 THD 10% POWER 1KHZ W 50 50'