Magnavox 19MDTR20 Service Manual page 49

Power Supply/AV 1/2 Schematic Diagram < TV/VCR Section >
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.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
4A/125V
MÊME TYPE DE 4A, 125V.
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Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
PLAY MODE
1 2 3
5.0
~
REC MODE
5.0 (2.5)
DVD MODE
< >
0
THE SAME VOLTAGE FOR
INDICATES THAT THE VOLTAGE
PLAY,REC & DVD MODES.
IS NOT CONSISTENT HERE.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
VOLTAGE CHART (Power off mode)
Ref. No. 1 2 3 4
IC2601 13.2 12.1 0.3 2.3
IC2602 2 0 0 0
IC2603 1.8 0.3 0 1.9
IC2604 0 ---
0 0.2
S D G
Ref. No.
0 140.7 1.4
Q2601
E C B
Ref. No.
Q2602 0 1.4 0.3
Q2603 0 4.9 0
Q2604 6.8 12.1 7.4
Q2605 0 8.0 0
Q2606 10.3 10.2 9.6
Q2607 0 0.1 0.7
Q2608 0.1 9.8 0.2
Q2609 5.9 9.3 6.6
Q2610 10.3 0.2 10.2
Q2611
0.2 10.3 0.3
Q2612 0 10.2 0
Q2613 0.9 4.6 1.4
Q2614
0.9 4.6 1.4
Q2615
0 2.5 0
Q2617
0.2 1.8 0.5
TD857SCP1
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