Panasonic PT-EW630UL

-86-
Troubleshooting
IC301
SYSTEM
CONTROL
&
SCAN
CONVERTER
<PW392>
LAMP
LP900
AC
SW902
THERMAL
FUSE
POWER
A901
LAMP
BALLAST
CHO_RXD
Q331
CHO_TXD
PW_MASTER_SDI
PW_MASTER_SDO
PW_MASTER_SCK
LAMP_DC_ON
IC1853
INVERTER
IC9885
SUB-CPU
<MB95F353EPFT>
LAMP COVER SW.
12
32
154
251 19
11
41
20
1
1
514
514
13
K8R
K6R
CN1
CN2
K6B
K601A-1A
K601A-2A
K6A
K8K
K8B
35
9
10
7
POWER-ON:H
POWER-ON:H
MAIN
LB_SW
IC3903
SCI
4
IC3902
1
1
4
22
SCI_SW
VD
CON_G
354
CPU_G
2
2
No power (lamp control)
Check that the LAMP_DC_ON
signal is correct.
Power: High
Check that the LB_SW signal
is correct.
Power-on;
LB_SW: High