User's Manual

JUNI JF43-E1900/CFN03
CDMA FIBER FED REPEATER OPERATIONS MANUAL
Version 1.17 ⓒ J
uni America Inc. Page 76 of 88
5.3 Trouble Shooting for the Donor Unit
Module Alarm
Possible
Reason
Action Required
Action (If problem
persists)
LD LD Fault - Change LD
Send back to Juni for
Repair
PD
Bad optic input
level
- Inspect optic input level
and check the optic line
- Clean optic connector
- Change the PD module
Send back to Juni for
Repair
Optic
Optic RF
fault
Optic module
AMP Fault
Change the Module
Send back to Juni for
Repair
UL0 RF
fault
UL0 path AMP
Fault
- Check the module gain
- Change the Module
Send back to Juni for
Repair
UL
UL1 RF
fault
UL1 path AMP
Fault
- Check the module gain
- Change the module
Send back to Juni for
Repair
Local
AMP
UL1 local
signal path
AMP Fault
- Check the Local signal
output level
- Change the module
Send back to Juni for
Repair
UL1 rock
fault
UL1 local
signal Fault
- Check the frequency of
output signal
- Change the module
Send back to Juni for
Repair
SAW
SAW
local fault
Local drive
AMP fault
- Check local oscillator
signal in the SAW module
AC fault
AC Voltage
Fault
- Check AC voltage
- Change PSU
Send back to Juni for
Repair
DC fault
DC Voltage
Fault
- Check DC voltage
- Check Battery voltage
- Change PSU
Send back to Juni for
Repair
BATT
fault
When there is
no battery
- Check Battery cable
- Change PSU
Send back to Juni for
Repair
Fan fault Fan Fault
- Check Fan
- Change Fan
Send back to Juni for
Repair
Door
open
Door open
- Check Door
- Check the cable of door
switch
- Change MUC
Send back to Juni for
Repair
Hi temp
When temp is
higher than
upper limit
- Check temperature and
limit
- Inspect the reason of
temp increase(ex. Fan or
over power)
Environment
Low temp
When temp is
lower than
lower limit
- Check temperature and
limit
- Inspect the reason of
temp decrease
[Table 5.3] Donor Unit Trouble Shooting Guide