LG 42PW350 - Testing the Z-SUS without the Y-SUS (Stand-Alone); Stand-Alone Z-SUS Test Procedure

Testing the Z-SUS without the Y-SUS (Stand-Alone)
This procedure will test the Z-SUS, Power Supply
and Control board without the Y-SUS.
Tip: On SMPS just to the left of P813. Use jumper J2 for 17V.
(1) Disconnect
P206
(1) Jump 17V (J2) SMPS
to J1 on the Z-SUS
(2) Ground Y-OE
(Bottom of R1)
(1) Disconnect P813
(4) Check J17
for 281V p/p
(1) Disconnect P101
Leave P6 to P2
connected
for
281V
p/p
(3) Apply AC
Tip: Disconnect P206 on Y
SUS Jump
“
Only
”
M5V to the Y
SUS (Not VS) If this brings up the 18V on P101 pins
June 2011 42PW350 Plasma
81
Tip:
Disconnect
P206
on
Y
-
SUS
.
Jump
Only
M5V
to
the
Y
-
SUS
(Not
VS)
.
If
this
brings
up
the
18V
on
P101
pins
24~27, then leave P101 connected. There will be no need to jump 17V to the Z-SUS.