Philips MCM240, Service Manual

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8-1 8-1
MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ............................................... 8-1 to 8-3
Main Board Layout Top View ........................................... 8-4
Main Board Layout Bottom View ..................................... 8-5
Circuit Diagram - MCU Part ............................................. 8-6
Circuit Diagram - CD Part ................................................ 8-7
Circuit Diagram - MP3 Part ............................................. 8-8
Circuit Diagram - Amp Part .............................................. 8-9
Circuit Diagram - Tuner Part .......................................... 8-10
Layout Diagrams ........................................................... 8-11
BLOCK DIAGRAM - 2-CHANNEL AUDIO
AMPLIFIER TFA9842J
60 k Ω
60 k Ω
STANDBY
MUTE
ON
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
VREF
0.5VCC
VCC
VCC
9
4
IN1 +
IN2 +
OUT1 +
OUT2 −
SVR
CIV
MODE
1
3
7
8
2
6
5
GND
TFA9842J
BLOCK DIAGRAM - AM/FM IF + FM STEREO DETECTOR
TA2099N
TFA9842J
IN2
+
OUT2 −
CIV
IN1 +
GND
SVR
MODE
OUT1 +
VCC
2
1
3
4
5
6
7
8
9
PIN CONFIGURATION - 2-CHANNEL AUDIO
AMPLIFIER TFA9842J