13-8
6864110R66-O
March, 2001
Troubleshooting
CDR500 & CDR700 Repeater Service Manual
3.
Low or no transmitter audio
from receive radio.
3a. S2 not configured correctly.
3b. “Ext PTT Audio” source incor-
rect.
3c. R24 not adjusted correctly.
3d. Receive radio “Accessory Mic
Gain” set too low.
3e. Audio loaded by an accessory
connected to “J4-ACC.”
3f.
Loose or bad repeater cable(s).
3a. Reconfigure S2.
3b. Select and reprogram transmit
radio “Ext PTT Audio”:
• “Ext Mic Audio” for EIA mic
audio only (pin 2).
• “Flat Tx Audio” for flat audio
only (pin 5).
• “Ext Mic & Flat Tx” for both
audios (pin 2 and 5).
3c. Adjust R24.
3d. Reprogram “Accessory Mic
Gain” of receive radio.
3e. Remove accessory and correct
condition.
3f.
Check repeater cable connec-
tion(s) and replace cable, if nec-
essary.
4.
Receive radio constantly keyed. 4a. S2 not configured correctly.
4b. Accessory connectors of receive
and transmit radios not pro-
grammed correctly.
4c. Pin 8 of the “J4-ACC” connector
pulled LOW by an accessory.
4d. Transmit radio turned OFF.
4e. Pin 3 of accessory connector of
receive radio programmed ac-
tive level “High”.
4a. Reconfigure S2.
4b. Check programming of accesso-
ry connectors and reprogram, if
necessary.
4c. Remove accessory and correct
LOW condition.
4d. Turn transmit radio ON.
4e. Reprogram pin 3 of receive radio
for active level “Low”.
5.
“Tinny” repeated audio (lacks
low frequencies).
6.
“Flat” receive audio selected
with “Ext Mic” transmit audio.
6.
Check positions of:
• S2-8 (OFF)
• S2-9 (ON)
7.
“Bassy” repeated audio (lacks
high frequencies).
7.
“Filtered” receive audio selected
with “Flat” transmit audio.
7.
Check positions of:
• S2-8 (ON)
• S2-9 (OFF)
Table 13-6.
Troubleshooting for Basic Repeater Controller Setup/Knockdown
Symptom
Problem
Solution
1.
Repeater not in “Setup” mode at
power-up, yellow LED not light-
ed and/or transmit radio front
panel not ON.
1a. JU1 in wrong position or miss-
ing.
1b. Loose or bad repeater cable to
transmit radio.
1c. Transmit radio turned OFF.
1d. Power cable not connected to
transmit radio.
1e. Ignition sense function not pro-
grammed in transmit radio.
1a. Replace JU1, if necessary, and
place in position 1-2.
1b. Check repeater cable connec-
tion(s) and replace cable, if nec-
essary.
1c. Turn transmit radio ON.
1d. Connect power cable to transmit
radio.
1e. Reprogram transmit radio for
desired ignition sense function.
2.
Repeater not in “Knockdown”
state at power-up, yellow LED
lighted and/or transmit radio
front panel ON.
2a. JU1 in wrong position.
2b. Ignition sense function not pro-
grammed in transmit radio.
2a. Place JU1 in position 2-3.
2b. Reprogram transmit radio for
“Follow Ignition Only”.
Table 13-5.
Troubleshooting for Basic Repeater Controller Bi-Directional Repeater (Cont'd.)
Symptom
Problem
Solution
Summary of Contents for CDR500
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Page 8: ...vi 6864110R66 O March 2001 Table of Contents CDR500 CDR700 Repeater Service Manual ...
Page 98: ...13 14 6864110R66 O March 2001 Troubleshooting CDR500 CDR700 Repeater Service Manual ...
