Hitachi YUTAKI Series - Page 219

217
Failure diagnosis method
SMGB0066 rev.0 - 12/2009
Troubleshooting
Service Manual
7

VCC05
IC6
IC7
IC4
C70
C72
C71
C22
C3
87654321
43214321
4321
DSW2 DSW4
VCC24
GND1
VCC05
VCC12T
VCC12
GND2
VCC24N
VCC05T
DSW3
DSW1 DSW5
4321
DSW7
4321
DSW9
4321
DSW8
4321
PSW1PSW2
LED8
LED7
JP1
Z3Z2
C3
C111
C5
C4
IC1
C28
C33
C31
C38
OSC
C21
EF1
C36
C19
DM5
DM2
DM1
DM4
DM3
REG3
CN6
PCN3B
PCN3A CN10BCN10A
PCN2
CN5 CN4 CN3
CN1CN8
CN14 CN15
CN2CN9 CN7A
CN7B
IC8
IC3
DSW6
21
Z5
Z6
C62 C68
C7
R81
D6 D7
D1
L1
C20
C2
C1
REG2
REG4
REG1
REG5
REG7
VCC24N GND2GND1
VCC24/VCC05T VCC12VCC12T

PowerSupplyOFF,andsetDSW1-1,DSW5-2,3ON,
andDSW5-1,4OFFonPCB
(Record original DIP switch setting)
PowerSupplyON,andconrmsegmentshowsasfollows:
<Initialization successfully done>
Ifsegmentshowsasfollows,PowerSupplyOFFonce,andPowerONagain:
<Initialization failure>
Ifsegmentshowsas"InitializationSuccessfullyDone",InitializationSucceed.PowerSupplyOFF,andDSW1-1,DSW5-
2,3setoriginalsettingagain.Initializationisnished.Inothercase,ifsegmentshowsnothingevenifdoingInitialization
procedure,orshownInitializationFailure,PCB1isbrokenandreplacePCB1.