Power Supply And Power Failure Detection - Sanyo PLC-HF15000L Service Manual

Troubleshooting

Power supply and power failure detection

MAIN
K66A
S16V
Q7432
Q7431
ON_25V
IC3516
PNL15V_ON
IC3511
SH15V_ON
IC3531
SH15V_ON
IC3551
SH15V_ON
IC5502
S6V
IC6651
IC1261
POWER_ON_SW
S6V1
IC3301
IC3321
IC6402
IC4461
KEY_POW_ON
IC3571
GAM1.8V_ON
IC3581
GAM1V_ON
S4.3V1
IC1861
IC1871
IC2271
POWER_ON_SW
S4.3V1
IC5101
Q6601 Q6602
Q7434
Q7433 25V
IC7431
Q521 Q522
HVDD
VVDD
Q511
15V_SHR
Q1511
15V_SHG
Q2511
15V_SHB
Q5501
S12V Q1761
Q6651
S5V Q1771
ID_PWR_SW
Q1772
Q1261
5VA
S1.2V_SCX
Q3321 Q3322
SCX_PLL
IC3341
1.8V_DDRA
S1.8V_SCX
S1.2V_PC1
Q6403 Q6404
S1.2V_PC1D
Q4461
1.8V_KEY
Q1406
1.8V_DDR
Q1408
1.0V_DDR
1.0V_DI_C
1.0V_DI_TX
1.0V_DI
Q1861
S3.3V_I/O
Q1871
S2.5V_USB
Q2271
S3.3VADA 3.3V_ADA
3.3VIO_ADA
IC2281
1.8VA_ADA
PLL_ADA
1.8CV_ADA
1.8V_ADA
2.5V_ADA
IC2291
Q5101
-168-
3.3VFFA IC6286 1.2VFFA
Error Information is listed by the serial
command "CRALLPFAIL". See the
chapter "Diagnosis of power failure
with RS-3C port" and "Power failure
detection system ".
PF_S16V
Q7436
PF_25V
PF_GAM
Q512
Q1512
Q2512
Q5502
PF_F_MOTOR
12V_ID
Q6652
PF_S5V
S5V_ID
Q1262
0.9V_DDRA
PF_PIC
Q4462
PF_KEY
Q1407
Q1409
Q1862
PF_I/O
Q1872
Q2272
PF_AD
Q2281 Q2282
Q2291 Q2292
1.3V_ADA
Q5102
PF_F_FPGA
Q6286 Q6287
ERROR INFO.
MAIN, S16V
MAIN, 25V
MAIN, GAMMA
MAIN, S12V
MAIN, S5V
MAIN, PIC
MAIN, KEYSTONE
MAIN, I/O
MAIN, AD
MAIN, F_FPGA