P84557
D
Sheet 12 of 14
TROUBLESHOOTING:
The SP4-RMX contain yellow LED indicators that, when illuminated, indicate a trouble condition. A trouble condition will also occur
on the SP40/2.
LED trouble indication on the SP40/2 when the SP4-RMX is connected to it
The D13 TRB LED indicator and D49 AUX IN LED indicator on the SP40/2 will illuminate when the SP4-RMX has a trouble
condition.
LED trouble indications on the SP40/2 and SP4-RMX when the SPB indicates a trouble condition
The D13 TRB LED indicator and D54 AUDIO SHORT LED indicator on the SP40/2 will illuminate; D29 SYS TRB and D23 WIRE
SHT on the SP4-RMX when the SPB has a trouble condition.
Use the following troubleshooting table to locate the trouble area.
Table 4:
Trouble LED Indicators
D30 SYS
PWR
D29 SYS
TRB
LED
Indicator
Remarks
ON OFF
Normal
OFF
OFF
24VDC not applied. Check PWR IN terminals. If 24VDC is present then SP4-RMS
module is defective. Replace.
RM CC input shorted in excess of 2 1/2 minutes or Defective SP4-RMX module.
D22 WIRE
Open
AUD OUT circuit open or 10K Ohm EOLR missing.
D23 WIRE
SHT
AUD OUT circuit shorted.
D24 AUX
TRB
AUX IN circuit open or 10K Ohm EOLR missing.
D25 ALM
TRB
ALM TRB circuit open or 10K Ohm EOLR missing.
D26 RM1
TRB
RM1 CC circuit open or RM1 module in trouble condition.
D27 RM2
TRB
RM2 CC circuit open or RM2 module in trouble condition.
ON ON
D28 RM3
TRB
RM3 CC circuit open or RM3 module in trouble condition.
Malfunctioning modules should be returned to the manufacturer for repair or replacement.
