Power Failure Detection Tree - Panasonic PT-EX600U Service Manual

Troubleshooting

Power failure detection tree

IC5532
S16V
IC592
IC5542
IC6606
Q6621 Q6622
S6V
IC271
IC5860
IC5842
IC4441
IC4461
IC4471
D5532
12V
ON_12V
D592
15.5V
ON_15V
D5545
12V_ID
S3.3V
Q6612
Q6611
IC_RESET
10VA
D276
IC291
3.3V_AD
IC281
S1.8VPW
S1.8VPWA
D5842
3.3V_LAN
S3.3VPW IC5851 S2.6VPW
S3.3V_V33PH
S3.3VPWA
3.3V_LAN PF_KEY
IC4451
3.3V_KEY
KEY_POWER_ON
PF_KEY
1.8V_KEY
KEY_POWER_ON
PF_KEY
3.3VBF
BF_POWER_ON
3.3V1BF
3.3V2BF
3.3V3BF
3.3VBFAUX
SUPPLIED CIRCUIT
AUDIO I/O
PANEL,S&H
FILTER
D6604
15V_LNS
LENS SHIFT
Q6613
IC_RESET
D6676
R6677
9V_LNS ZOOM, FOCUS
1.8VA_AD
A/D
1.8VD_AD
PW, 1.8V
S1.3VREF
PW, 2.6V, MEMORY
PF_KEY
IC2391
2.5V_KEY
KEY_POWER_ON
PF_KEY
2.5V_BF
IC4481
BF_POWER_ON
-99-
DETECTION
LINE NAME
PF_12V_FILTER
PF_15V_GAM
FILTER_DET
PF_15V_LNS
PF_9V_LNS
PF_3.3V_AD
PF_1.8VA_AD
PF_1.8VD_AD
P_FAIL_LAN
1.25V_REF
1.25V_VTT
PF_KEY
PF_KEY
1.2VBF
IC4491
BF_POWER_ON
ERROR INFO.
AUDIO&ID, 12V
SH&PANEL, 15.5V
FILTER, DET
LENS, 15V
LENS, 9V
ADC, 3.3V
ADC, 1.8VA
ADC, 1.8VD
MAIN, 3.3V
KS&DL