Motorola T720 - Page 65

65 © 2002 Motorola, Inc.
Product Support Tools T720
3. Display is erratic,
or provides partial or
nodisplay.
a) Defective display
module.
b) RF/Audio-Logic
board defective.
1. Disassemble the display and reassemble to check
the connection. If it does not recover, check the
transceiver board.
2. Check connection. If connection not at fault,
proceed to b.
Replace the RF/Audio-Logic Board
4. Alert ringer volume
is distorted or too low.
a) Alert defective.
b) RF/Audio-Logic
board defective.
1. Replace the defective alert with a known good
alert.
2. Replace the RF/Audio-Logic Board
5. Transmit audio is
weak, distorted, or
dead.
a) Microphone defec-
tive.
b) RF/Audio-Logic
board defective.
1. Replace defective microphone.
2. Replace the RF/Audio-Logic Board
6. Receive audio is
weak and/or
distorted.
a) Speaker defective.
b) RF/Audio-Logic
board defective.
1. Replace defective speaker.
2. Replace the RF/Audio-Logic Board
Symptom
Probable Cause
Verification and Remedy