Psu Board - Philips MX1050D/22 Service Manual

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PSU BOARD

TABLE OF CONTENTS
PQ12CG3032F & PQ3RD13 Internal Block .................... 5-1
Components Layout + Voltages ...................................... 5-2
Circuit Diagram ................................................................ 5-3
Electrical parts list ............................................................ 5-4
5-1
PQ12CG3032F Internal Block
PQ12CG3032F
V 1
IN
Voltage
Regulator
PWM Comp
COM 3
Overcurrent
Q
Detection Cricuit
F/F
R
S
Overheat
Detection Circuit
PQ3RD13 Internal Block
DC Input 1 2 DC Output
Specific IC
4 ON/OFF Control
3 GND
5-1
2 V
On/Off
Circuit
5 ON/OFF
+
- Soft
Start
-
4 0
+
Oscillator Error Amp. Vref
It`s Free
OUT
ADJ