Text preview for : service.pdf part of Philips service Philips Audio MCM2150 service.pdf
Back to : service.pdf | Home
TABLE OF CONTENTS
Page
Location of PCB boards and version variation ............................
1
T
Technical specification ..........................................................
............................................................2-3
Safety instruction........................................................................ 4
ESD protection......... 5
....................................................................
Safty precautions ........................................................................6
Set Block diagram ...................................................................7-8
Set Wiring diagram .....................................................................9
Disassembly diagram ................................................................ 0 1
Main board
Circuit diagram...............................................................11-14
Layout diagram..............................................................15-16
Display board
Circuit diagram.....................................................................17
Layout diagram...............................................................18-19
Mechanical Exploded view..... .................................................20
1
Location of PCB Boards
Display Board
Main Board
VERSION VARIATION
Type /Versions: MCM2150
/55 /77
Board in used: Service policy (INMETRO) (IRAM)
Main BOARD C/M C
Display BOARD C/M C
Type /Versions:
MCM2150
Features Feature diffrence /55 /77
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
2
Technical Specification
MCM2150 Elec parameter Test Report
TEST CONDITIONS:
1.POWER SUPPLY: AC.Accordiing to Ver
2.REF OUTPUT:8 1W , 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
90 18 22 20 20
2 26dB QUENTING SENSITIVITY 98 dBf 18 22 17 19
106 18 22 18 18
3 -3dB LIMITING POINT dBf 17 25 17 19
4 FM IF REJECTION 98MHZ S/N=26dB dB 55 50 >55 >55
5 IMAGE REJECT 98MHZ S/N=26dB dB 24 20 >24 >24
6 SELECTIVITY S 0.3 dB 40 33 / /
MONO 55 50 58 58
7 S/N
ST 55 50 / /
8 OVERALL DISTERTION % 3 5 0.4 0.4
9 MODULATION HUM dB 45 40 46 43
63Hz