Motorola V8162, Service Manual

Page: 57 / 93

Troubleshooting
2. Phone exhibits poor
reception and/or erratic
operation (such as calls
frequently dropping, weak
and/or distorted audio,
etc.) a) Defective antenna or
damaged antenna connector.
b) Defective RF/ Audio-Logic
Board.
1. Make sure the antenna shaft ferrule is screwed into the
antenna socket.
2. Make sure pin on antenna coil is seated in antenna connec-
tor socket.
3. Replace the antenna with a known good antenna.
Replace the transceiver board (refer to symptom 1c Verifica-
tion and Re edy.)
3. Display is erratic, or
provides partial or nodis-
play. a) Defectivedisplay module.
b) RF/Audio-Logic board
defective.
1. Gain access to RF/Audio-Logic board or keypad board as
described in the “Disassembly” section of this manual.
2. Check connection. If connection not at fault, proceed to b.
Replace the RF/Audio-Logic Board (refer to
symptom 1f Verification and Remedy).
4. Alert ringer volume is
distorted or too low. a) Alert ringer
defective.
b) RF/Audio-Logic board
defective.
Replace the defective speaker or alert ringer with a known
good speaker or alert ringer.
Replace the RF/Audio-Logic Board (refer to symptom 1f Ver-
ification and Remedy).
5. Transmit audio is weak,
distorted, or dead.
a) Microphonedefective.
b) RF/Audio-Logic board
defective.
Replace defective microphone.
Replace the RF/Audio-Logic Board (refer to
symptom 1f Verification and Remedy).
6. Receive audio is weak
and/or distorted. a) Speaker defective.
b) RF/Audio-Logic board
defective.
Replace defective speaker.
Replace the RF/Audio-Logic Board (refer to symptom 1f Ver-
ification and Remedy).
7. StarTAC 800 (CDMA)
model does not sense
when flip is opened and
closed. a) Defective reed switch or
magnet on keypad board Replace keypad board assembly or magnet/flip assembly.
Table 15:
Symptom Probable Cause Verification and Remedy