Philips MCM240 - System Specifications; Technical Specifications Summary; System Maintenance; Cleaning Guide for System Components

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 kΩ
60 kΩ
STANDBY
MUTE
ON
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
V
REF
0.5V
CC
V
CC
V
CC
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+
V
CC
2
1
3
4
5
6
7
8
9
PIN CONFIGURATION - 2-CHANNEL AUDIO
AMPLIFIER TFA9842J