Samsung OFFICESERV 7100 Service Manual page 126

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3.4.6.3 LED for Indicating Line is Abnormal
The procedure for resolving the problem that occurs when the LED for indicating line of
TEPRI2 board is as follows:
Start
LOS LED is ON?
No
SYN LED is ON?
No
AIS LED is ON?
No
End
3-32
Yes
Check signals between PIN 2/3 of
U6,7(FALC56). If signal is not
detected, track and repair signal.
Yes
Turn off CRC from PRI option.
SYN LED is ON?
No
End
- Select clock source through
MMC 826, the program for
selecting it based on system
Yes
clock synchronization
- Check signal distortion after
identifying signals between PIN
2/3 of U6,7(FALC 56)
- Select clock source through
MMC 826, the program for
Yes selecting it based on system
clock synchronization
- Check signal distortion after
identifying signals between PIN
2/3 of U6,7(FALC56)
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