JX-S555(J)
6 (No. 70251SCH)
CPU BLOCK
0V
5.3V
5.2V
5.2V
5.2V
3.9V
3.9V
3.9V
1.7V
1.7V
0V
1.7V
1.7V
1.7V
5.3V
0V
0V
0V
0V
5.3V
0V
0V
3.6V
3.6V
0V
0V
0V
0V
0V
0V
0V
0V
0V
5.3V
1.3V
5.2V
0V
2.6V
5.3V
5.9V
0V
5.3V
5.3V
5.5V
0V
0V
5.3V
4.9V
0V
5.9V
0V
0V
5.9V
5.9V
0V
5.9V
0V
5.3V
0V
0V
5.9V
0V
0V
5.3V
0.5V
5.9V
0V
0V
0.7V
5.1V
0V
5.3V
0V
5.3V
0V
0V
5.3V
5.3V
5.2V
0V
0V
0V
0V
0V
2.8V
3.1V
0V
5.3V
0.2V
5.2V
5.3V
5.3V
0.5V
0.5V
0.5V
0.5V
0.5V
0.5V
0.5V
0.5V
0V
5.2V
5.3V
5.3V
-6.0V
5.3V
5.3V
-6.0V
5.9V
5.3V
-6.0V
A
IC2
UPD780021ACWW01
TO FRONT 1 BLOCK
TO FRONT 2 BLOCK
C5
10u
16V
C4
10u
16V
TO COMPONENT BLK
TO VIDEO 1 BLK
Notes on this schematic diagram
1. Values are voltages measured with a circuit tester (internal resistance: 20 k /V)
at respective points of the circuits with the power switch turned on.
2. The circuit diagram printed in this service manual is just a standard. The circuitry
and circuit constants are subject to change for improvement without notice.
3. Parts marked with
A
(in the shaded area) are important as safety parts.
When replacing them, make sure to use the specified parts to ensure safety.
