Panasonic TH-42PX600U - About Lead-Free Solder (PbF); Lead-Free Solder Recommendations

LED blinks 5 times (TH-37PX60U, TH-42PX60U and TH 42PX600U)
<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
Disconnect
CN D31, D32
Is pin 7 of CN P25 shorted
to GND?
Connect D31.
Disconnect D32.
Is pin 7 of CN P25 shorted
to GND??
Yes
No
Yes
No
D Board
Disconnect CB1-CB4.
Is pin 7 of CN P25 shorted
to GND?
Yes
No
C1 Board
Panel
Disconnect D31.
Connect D32.
Is pin 7 CN P25 shorted
to GND?
Yes
No
Disconnect CB5-CB8.
Is pin 7 of CN P25 shorted
to GND?
Yes
No
C2 Board
Panel
Connect CN SC20.
Disconnect CN SS23
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
Go Back
to the start.
Warning: Disconnect AC Power prior to
making any disconnection or
connection.
13
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>
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 SS43 (*1)
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.
14
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-CA3.
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
CA4-CA7. Is pin 7 of CN P25 shorted
to GND?
Yes
C2 Board
See step 1 of next
page.
No
(*1) = The reference number of
the sustain data connector is
different in some of the models:
TH-50PX60U = SS43
TH-50PX600U = SS43