Panasonic TC-P50S1 Manual De Usuario
Slide #55
8 Blinks Error Code (TC-P42X1) Circuit Explanation
On this model, only the circuit used to monitor for physical connection between the
panel and the SS board is used to trigger an 8 blinks condition. The energy-recovery-
panel and the SS board is used to trigger an 8 blinks condition. The energy-recovery-
circuit portion used to monitor the operation of the sustain drive circuit is located
on the SC board.
on the SC board.
Under normal condition, Q16280 is on.
When Q16280 is on, a low is provided to the anode of D16280 (D280).
If one of the FPC cables is open, Q16280 turns off and a high is provided to the
anode of D16280 (D280). This high is provided to pin 66 of the CPU in the
A board. When this happens, the TV shuts down and the power LED blinks
8 times.
To determine if the 8 blinks is caused by the A board, SS board, or the Panel:
•
Isolate the SS board and check if the TV stays on when it’s turned on.
•
If the TV does not stay on after disconnecting the SS board, the A board is
defective.
defective.
•
If the TV stays on, then the SS is bad, the FPC cables are open, or the Panel is
defective.
To isolate the SS board for 8 blinks condition:
Remove SS23 and see if the TV stays on