Panasonic S Series, Technical Manual

Page: 72 / 111

Slide 71
Is there a short
circuit of the
Vsus or Vda?
Yes
No
Shorted
Vda
Shorted
Vsus
Continue on
next slide (A)
TC-P42S60
TC-P50S60
Applies to Models
Troubleshooting 3 Fast Blinks Failure (TC-P42/50S60)
( 1 of 2)
1. Unplug the TV.
2. Remove any residual charge from the Vsus and Vda lines. Use a 5W 500ohms resistor.
3. Measure the resistance between:
• Chassis ground and pin 6 of connector P2 on the P board (Vsus).
• Chassis ground and pin1 of connector P35 on the P board (Vda). Note: A dead short or a reading lower than 1K indicates a shorted or partially
shorted line.
Start Here
Unplug the TV and remove
connector A1 from the A board.
Plug in the TV.
Replace the K
board
Does the TV turn on
and stays on?
(Power LED is not lit.)
Yes
Unplug the TV and reconnect A1.
Disconnect connectors A31 and A32 from
the A board. Plug-in the TV.
Is the power
LED blinking
3 or 8 times?
3 times
8 Times
Replace the
A board
Replace the Panel (Check
the C boards first for
shorted SUB3.3V/P3.3V).
No
Panel SN (42”)
SC/SS (50”) PSS 3 Blinks
No specific order
List of boards likely to cause this symptom. Blink
Code
Replace the
PSS board