Panasonic TH-42PZ80U Technical Manual page 17

Continue from the
previous slide (A)
Reconnect SS33 and disconnect D31, D32, and D33 on the
D board (To get to this connectors, remove the A Board
Block Assembly). Measure the resistance between pin 5 of
connector P25 on the P board and ground (Chassis).
Yes
Is there a
Replace
short to
the D board
ground?
Reconnect D31 and D32 only. Measure the resistance
between pin 5 of connector P25 on the P board and
ground (Chassis).
Yes
Is there a
short to
ground?
Disconnect the Flex cables between the panel and the C1
board (CB1~CB8). Measure the resistance between pin 5
of connector P25 on the P board and ground (Chassis).
Yes
Is there a
Replace
short to
the C1 board
ground?
LED blinks 5 times
No
TH-46PZ80/85U
TH-42PZ80/85U
TH-50PZ80/85U
TH-46PZ800/850U
TH-50PZ800/850U
No
Reconnect D33 and disconnect the Flex cables between
the panel and the C2 board (CB9~CB15). Measure the
resistance between pin 5 of connector P25 on the P
No
Replace
the Panel
Figure 5
board and ground (Chassis).
Is there a
No
short to
ground?
17
TH-42PZ85U
Yes
Replace
the C2 board
Go to the
next slide (B)