LG 42PW350 - TCP Testing

TCP Connector Pin Description
Any X Board to Any TCP P201~P206 or P301~P306
3.3V ORIGINATION
From Control board IC53 center leg.
Leaves P107 to P232 and P108 to P331
VA: ORIGINATION
From Z-SUB P203 In Right X P312 3~4
Va: ROUTING:
TCP Testing
Leaves
P107
to
P232
and
P108
to
P331
Arrives on X board Left P232 Pins 9~11
Arrives on X board Right P331 Pins 42~44
Va:
ROUTING:
Leaves Right X P311 pins 3~4
To Left X : P211 pins 3~4
Fl ibl P i t d Ribb C bl t TCP IC
Look for any TCPs being discolored.
Ribbon Damage. Cracks, folds Pinches, scratches, etc…
DIODE CHECK
TCP DISCONNECTED
Must be checked on FPC
Fl
ex
ibl
e
P
r
i
n
t
e
d
Ribb
on
C
a
bl
e
t
o
TCP
IC
Red Lead on TCP VA OL
DIODE CHECK
ALL TCPs INSTALLED
Red Lead on TCP VA OL
Black Lead on TCP VA 0 47V
Va
Gnd
EC
3.3V
Gnd
Gnd
Gnd
EC
Va
Black Lead on TCP VA 0.5
V
Red Lead on TCP 3.3V OL
Black Lead on TCP 3.3V 0.53V
EC OL either way
Black
Lead
on
TCP
VA
0
.
47V
Red Lead on TCP 3.3V 0.53V
Black Lead on TCP 3.3V 0.32V
EC (OL) either way
Gnd
Logic
June 2011 42PW350 Plasma
13 2
51015 25303540
45
501 20
EC
OL
either
way