Sanyo VHR-M261EV - Circuit Diagrams; Power, Tuner, NICAM;A2 Circuit Diagram

3-27 3-28
CIRCUIT DIAGRAMS
1. Power, Tuner, NICAM/A2 Circuit Diagram
EE MODE(VIDEO)
EE/PB MODE (VIDEO)
TU MODE (AUDIO)
NOTES) Symbol denotes AC ground.
NOTES) Symbol denotes DC chassis ground.
NOTE) Warning
NOTE) Parts that are shaded are critical
NOTE) With respect to risk of fire or
NOTE) electricial shock.
J9M8
BD101, R101 are defective.
Power dead.
F101 is defective.
Power dead.
IC101 is defective.
Switching dead.
D102 is defective.
No power.
D106 is defective.
No 5.3VA and 5VG, 5VT.
No 14VA, 12VA are 12VT.
D109, C120 are defective.
Q152 is defective.
No 5.2VT.
IC102, IC103 are defective.
Power dead.
NOTE :
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during TUNER mode.
BaseCollectorEmitter
PB RECPB RECPB REC
12.5
10.0
-26.6
15.0
11.6
-27.8
14.8
11.8
-27.3
11.8
9.3
-27.9
11.9
9.4
-27.3
Q151
Q152
Q514
12.4
9.9
-27.0
__
TR Voltage Sheet
IC101
1
5
PB
REC
16.1
16.3
4.0
4.6
PB
REC
309
309
0.0
0.0
0.0
0.0
IC102
1
4
PB
REC
4.0
4.0
0.0
0.0
PB
REC
4.9
4.9
3.9
4.0
BaseCollectorEmitter
PB RECPB RECPB REC
3.93.9
0.0
0.02.52.5IC103
* IC103 Voltage Sheet
* IC101 Voltage Sheet * IC102 Voltage Sheet