Read Panasonic TU-PTA100E Service Manual online
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Service Adjustment Procedures
Item / preparation
Adjustment Procedure
+B Voltage Confirmation
1. Operate the set.
2. Set controls :
Bright ............................ minimum
Contrast ........................ minimum
Volume .......................... minimum
Contrast ........................ minimum
Volume .......................... minimum
Confirm the following voltages.
1. Pin 3 of connector P4
: 3.3V ± 0.5V
(P-Board)
2. Pin 5 of connector P4
: 5.0V ± 0.5V
(P-Board)
3. Pin 8 of connector P4
: 12.0V ± 0.6V (P-Board)
4. Pin 12 of connector P4 : 13.45V ± 0.5V (P-Board)
5. Pin 13 of connector P4 : 30.0V ± 1.5V (P-Board)
6. Pin 3 of IC7703
5. Pin 13 of connector P4 : 30.0V ± 1.5V (P-Board)
6. Pin 3 of IC7703
: 9.0V ± 0.5V
(W-Board)
7. Pin 3 of IC3805
: 8.0V ± 0.5V
(A-Board)
8. Pin 3 of IC3801
: 9.0V ± 0.5V
(A-Board)
9. TPA21
: 12.0V ± 0.6V (A-Board)
10. Pin 3 of IC3801
: 8.0V ± 0.5V
(A-Board)
11. TPA22
: 3.3V ± 0.5V
(A-Board)
12. TPA23
: 5.0V ± 0.5V
(A-Board)
13. Pin 3 of IC3104
: 5.0V ± 0.5V
(A-Board)
14. Pin 3 of IC3803
: 5.0V ± 0.5V
(A-Board)
15. Pin 1 of
: 13.4V ± 0.5V (A-Board)
16. TPA24
: 30.0V ± 1.5V (A-Board)
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