LG 42PW350 - TCP Visual Observation. Damaged TCP; Identifying Damaged TCPs

TCP Visual Observation. Damaged TCP
Warning: DO NOT attempt to run the set with the Heat Sink over the TCPs removed
This damaged TCP can, (at the location of the TCP).
a)
Cause the Power Supply to shutdown. (VA shorted, 3.3V shorted).
Warning:
DO
NOT
attempt
to
run
the
set
with
the
Heat
Sink
over
the
TCPs
removed
.
After a very short time, these ICs will begin to self destruct due to overheating.
a)
Cause
the
Power
Supply
to
shutdown.
(VA
shorted,
3.3V
shorted).
b) Generate abnormal vertical bars, (colored noise).
c) Cause the entire area driven by the TCP to be “All White” or “ALL BLACK”.
d) Cause a “Single Pixel Width Line” defect. The line can be Red, Green or Blue.
e) A dirty contact at the connector can cause b, c and d also.
“TCP”
Tapped
Carrier
Package
Look for burns, pin
holes, damage, etc.
June 2011 42PW350 Plasma
13 3