Samsung OFFICESERV 7100 Service Manual page 127

3.4.6.4 RUN LED is Abnormal
If RUN LED of TEPRI2 board blinks, the TEPRI2 board is operating properly.
The procedure for resolving the problem that occurs when the RUN LED turns off is as
follows:
Start
Processor is operating?
Yes
If other board is
mounted on same slot,
processor operates
normally?
Yes
ENIPCR signal is normal?
(U14 PIN55)
Yes
ADDRESS and
DATA BUS, RD, WR signals are
normal?
Yes
Replace U14
End
© SAMSUNG Electronics Co., Ltd.
No
Refer to 'Processor Operation is
Abnormal'
No
Repair main board
- Check U5 J3 signal
No
- Check U12
C3(IPC_DPRAM_CS) and
R119 is active.
ENIPCR and
ENABLE signals are active?
Yes
Replace U5
End
No
Replace U5
OfficeServ 7100 Service Manual
No
- Repair signal
- Check PGM version
- Replace U12
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