Panasonic TH-42PX600U - Service Hints and Board Identification; Board Functions Overview

LED blinks 5 times (TH-50PX60U and TH 50PX600U)
<Trouble Mode and Defective Board>
Trouble Mode
5V SOS
Defective Board
D, P, C, SC, SS board or Panel (DDIC)*1
<How to find the defective boards>
Warning: Disconnect AC Power prior to
making any disconnection or
connection.
15
Connect D32.
Disconnect CN D31, D33,
and D34. Is pin 7 of CN
P25 shorted
to GND?
No
No
Disconnect
CA8-CA11. Is pin 7 of
CN P25 shorted to
GND?
Yes
Yes
C3 Board
Panel
Connect D33.
Disconnect CN D31, D32,
and D34. Is pin 7 of CN
P25 shorted
to GND?
No
No
Disconnect
CB8-CB11. Is pin 7 of
CN P25 shorted to
GND?
Yes
Yes
C4 Board
Panel
Connect D34.
Disconnect CN D31, D32,
and D33. Is pin 7 of CN
P25 shorted
to GND?
No
Panel
Yes
C6 Board
Yes
Yes
No
Connect
CN C60 of the C6
board. Disconnect CB1-
CB3. Is pin 7 of CN P25
shorted
to GND?
No
Disconnect CN C60 of
the C6 board. Is pin 7 of CN
P25 shorted to GND?
Panel
Disconnect
CB4-CB7. Is pin 7 of CN P25
shorted to GND?
Yes
C5 Board
Go back
to the start of
the flowchart.
No
Step 1
of previous page
LED blinks 5 times (TH-58PX60U and TH 58PX600U)
<Trouble Mode and Defective Board>
Trouble Mode
5V SOS
Defective Board
D, P, C, SC, SS board or Panel (DDIC)*1
<How to find the defective boards>
No
No
Yes
Disconnect
CN D31, D32, D33, and D34.
Is pin 7 of CN P25 shorted
to GND?
No
D Board
Connect
CN SC20. Disconnect CN SS44
Turn on the unit. Does it
power up?
SS Board
Yes
Connect
CN P25. Disconnect CN
SC20 Turn on the unit. Does
it power up?
SC Board
Yes
Disconnect CN P25.
Is pin 7 of the socket P25
shorted to GND?
P Board
Yes
No
Warning: Disconnect AC Power prior to
making any disconnection or
connection.
16
Connect D31. Disconnect
CN D32, D33, and D34. Is pin 7 of CN
P25 shorted to GND?
No
No
Panel
No
Connect
CN C10 of the C1
board. Disconnect CA1-CA4.
Is pin 7 of CN P25 shorted
to GND?
Yes
C1 Board
Disconnect CN C10
of the C1 board. Is pin 7 of CN P25 shorted
to GND?
Yes
Yes
Panel
Connect
CN C10. Disconnect CN CA5-CA8
and C23 of the C2 board. Is pin 7 of CN
P25 shorted to GND?
Yes
C2 Board
See step 1 of next
page.
No