Sanyo PLC-ET30L Service Manual page 83

Troubleshooting
No Power
(Check power supply & power failure detection circuit)
S6V3
S6V2
S-5V
FROM
POWER(DC)
S6V1
S16V
S3.3V
IC301
D[0-7]
SCAN
CONVERTER
&
SYSTEM
CONTROL
<PW392>
348
251
347
145
250
Q6671
S1.2VFP
S1.2VPA
IC6681
S1.2VPD
ON_1.8V
IC6691
S3.3VFP
IC7601
3.3VGA
IC7651
3.3V
3.3V_SW
IC7661
3.3VPNL
3.3VPNL_SW
IC5631
S3.3VPWA
IC5621
3.3VPW
S3.3V_I/O
Q5601
S3.3V1
IC5611
IC5691
S5V_PW
IC4891
5V
Q5641
S1.8VPW
IC1821
S2.5V_USB
IC5291
S5V
IC6261
3.3V_AD
IC8801
S5V_TEMP
IC5101
S9V_AUDIO
IC7621
15.5VRE
15V_SW
IC7281
S2.5VFPGA
S3.3VSI S2.5VSI
S3.3FPGA
61
P-FAIL_1.8V
62
P-FAIL_S-5V
IC1801
63
P-FAIL_S1.2V
I/O EXPANDER
64
<TE7783> P-FAIL_15V
65
P-FAIL_S5V
66
P-FAIL_PJ
7 13
3.3V_SW_EX
9 11
IC861
15V_SW_EX
BUFFER
8 12
5V_SW_EX
3 17
LAMP_DC_ON_EX
2 18
3.3VPNL_SW_EX
D6673
P-FAIL_S1.2V
D6691
P-FAIL_S1.2V
D7601
P-FAIL_1.8V
D7651
P-FAIL_1.8V
D7661
P-FAIL_1.8V
IC7641
IC7611
1.0VGA
3.3V_SW
IC5681
S2.6VPW
IC5661
S1.8VPWA
ON_1.8V
Q4621
15V_PNL
P-FAIL_S-5V
D5691
15V_LNS
P-FAIL_S5V
D4807 9V_LNS
P-FAIL_15V
D5291
P-FAIL_S5V
D6261
P-FAIL_1.8V
IC6271
1.8VD_AD
IC7281
1.8VA_AD
D8801
P-FAIL_S5V
P-FAIL_S5V
D5101
IC5111
S5V_AUDIO
D7621
P-FAIL_15V
D7291
IC7291
S1.2VFPGA
S6V1 S6V1
K8S K30B
5V_NET
5V_NET
NET_SW
S9V_AUDIO
To POWER(DC)
3.3V_SW
15V_SW
5V_SW
AV
MAIN
LAMP_DC_ON
3.3VPNL_SW
-83-
D7641
P-FAIL_1.8V
2.5V
D7611/D7612
P-FAIL_1.8V
D4603
P-FAIL_15V
D4602
D4601
D6271
P-FAIL_1.8V
D6281
P-FAIL_1.8V
D5111
P-FAIL_S5V
P-FAIL_S1.2V
IC3041
S5V_EXT
D3041
P-FAIL_PJ
IC3031
3.3V1_NET
Q3031
D3031
P-FAIL_PJ
5V_NET
S9V_AUDIO
3.3V1_NET
S5V_EXT
JOINT
K30A
K40E