Motorola CDR500 Programming Manual page 92

Troubleshooting
Table 13-5. Troubleshooting for Basic Repeater Controller Bi-Directional Repeater (Cont'd.)
Symptom
3. Low or no transmitter audio
from receive radio.
4. Receive radio constantly keyed. 4a. S2 not configured correctly.
5. "Tinny" repeated audio (lacks
low frequencies).
7. "Bassy" repeated audio (lacks
high frequencies).
Table 13-6. Troubleshooting for Basic Repeater Controller Setup/Knockdown
Symptom
1. Repeater not in "Setup" mode at
power-up, yellow LED not light-
ed and/or transmit radio front
panel not ON.
2. Repeater not in "Knockdown"
state at power-up, yellow LED
lighted and/or transmit radio
front panel ON.
13-8
Problem
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).
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".
6. "Flat" receive audio selected
with "Ext Mic" transmit audio.
7. "Filtered" receive audio selected
with "Flat" transmit audio.
Problem
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.
2a. JU1 in wrong position.
2b. Ignition sense function not pro-
grammed in transmit radio.
6864110R66-O
CDR500 & CDR700 Repeater Service Manual
Solution
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.
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".
6. Check positions of:
• S2-8 (OFF)
• S2-9 (ON)
7. Check positions of:
• S2-8 (ON)
• S2-9 (OFF)
Solution
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.
2a. Place JU1 in position 2-3.
2b. Reprogram transmit radio for
"Follow Ignition Only".
March, 2001