Technical data

Chapter 8: Troubleshooting
Table 8-1. Trouble Procedure Cross Reference
Condition Trouble Description
Troubleshooting
Procedure
D109 (POWER ON LED)
is OFF
AC and Battery power are missing or Low Section 8.2.1 (A)
D96 AND D97 are ON
Strobe Overcurrent Protection is active Section 8.2.2 (B)
D8 (BAT) is ON
Battery voltage is below 20.4 VDC or battery is missing
Section 8.2.3 (C)
AC TROUBLE (of display)
is ON AC input voltage missing or low Section 8.2.4 (D)
D3 (DV) is ON
Digital Voice Signal is too low or missing Section 8.2.5 (E)
D4 (MIC) is ON steady
Push-to-Talk Microphone inoperable or missing Section 8.2.6 (F)
D5 (AMP) is ON steady
Audio Overcurrent Protection is active Section 8.2.7 (G)
D96 (STB SHT) is ON
Strobe Notification Appliance Circuit is shorted Section 8.2.8 (H)
D97 (STB OPEN) is ON
Strobe Notification Appliance Circuit is open Section 8.2.9 (I)
D44 (AUX IN) is ON
Auxiliary input is open, RMX is in trouble, or remote
MIC is in trouble
Section 8.2.10 (J)
D2 (AUD SHT) is ON
Audio Notification Appliance Circuit is Shorted, Splitter
is in trouble, or Audio Booster is in trouble
Section 8.2.11(K)
D1 (AUD OPEN) is ON
Audio Notification Appliance Circuit is Open Section 8.2.12 (L)
D67 (GF) is ON
Ground Fault Trouble Section 8.2.13 (M)
D47 (INT TRB) is ON
User Interface is incorrectly connected or damaged Section 8.2.14 (N)
D6 (EXT AC WIR) is ON
SPB SUP is open or Audio Booster has AC failure Section 8.2.15 (O)
D5 (AMP) is blinking
Auxiliary preamp failure Section 8.2.16 (P)
D4 (MIC) is blinking
Microphone preamp failure Section 8.2.17 (Q)
D93 (CHG TRB) is ON
Battery voltage is below 18.5 VDC or battery is missing
Section 8.2.18 (R)
D55 (DV1) is ON
IN1 (DV input 1) is open Section 8.2.19 (S)
D62 (DV2) is ON
IN2 (DV input 2) is open Section 8.2.19 (S)
D58 (DV3) is ON
IN3 (DV input 3) is open Section 8.2.19 (S)
D65 (DV4) is ON
IN4 (DV input 4) is open Section 8.2.19 (S)
D75 (DV5) is ON
IN5 (DV input 5) is open Section 8.2.19 (S)
D84 (DV6) is ON
IN6 (DV input 6) is open Section 8.2.19 (S)
D78 (DV7) is ON
IN7 (DV input 7) is open Section 8.2.19 (S)
D87 (DV8) is ON
IN8 (DV input 8) is open Section 8.2.19 (S)
EXCESSIVE NOISE FROM
SPEAKERS
MOTHERBOARD MAY NOT BE PROPERLY
GROUNDED TO ENCLOSURE Section 8.2.20(T)
Before performing any of the following troubleshooting procedures, make sure
that you read, understand, and follow the preliminary troubleshooting information
at the beginning of this “troubleshooting” chapter.
SP40S Multi-Function Facility Communication System Manual, Revision D
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