Philips 20MC4304, Service Manual

Page: 43 / 316

NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
4A/125V
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F2601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
Power Supply/AV 1/2 Schematic Diagram < TV/VCR Section >
1-5-31 1-5-32
TD901SCP1
Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
1 2 3
5.0
(2.5)
<
0
>
~
5.0
THE SAME VOLTAGE FOR
PLAY,REC & DVD MODES.
INDICATES THAT THE VOLTAGE
IS NOT CONSISTENT HERE.
PLAY MODE
REC MODE
DVD MODE
VOLTAGE CHART (Power off mode)
Ref. No. 1 4
IC2601 13.2 2.3
IC2602 2 0
IC2603 1.8 1.9
IC2604 0 ---
Ref. No.
Q2601
Ref. No.
Q2602
Q2603
Q2604
Q2605
Q2606
Q2607
Q2608
Q2609
Q2610
Q2611
Q2612
Q2613
Q2614
Q2615
Q2617
S
0
E
0
0
6.8
0
10.3
0
0.1
5.9
10.3
0.2
0
0.9
0.9
0
0.2
2
12.1
0
0.3
0
D
140.7
C
1.4
4.9
12.1
8.0
10.2
0.1
9.8
9.3
0.2
10.3
10.2
4.6
4.6
2.5
1.8
3
0.3
0
0
0.2
G
1.4
B
0.3
0
7.4
0
9.6
0.7
0.2
6.6
10.2
0.3
0
1.4
1.4
0
0.5