Reception is bad
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Reception is bad › Reception is bad
Electrical 15A – Radio systemReception is bad
RECEPTION IS BAD
TEST B
NOTE: anomalies and defects affecting the antenna/heated rear windscreen control unit may also be connected with a malfunction affecting the heated rear windscreen (see "Heated rear windscreen and adjustable heated door mirrors")
| TEST PROCEDURE | RESULT | CORRECTIVE ACTION | |
|---|---|---|---|
| B1 | CHECK COAXIAL CABLE | OK NOT OK | Carry out step B2 Replace the coaxial cable |
| - Check for damage to and connection of the coaxial cable which connects the radio O4 to device N49 | |||
| B2 | CHECK CONTINUITY | OK NOT OK | Check and if necessary replace la control unit N49 or check the radio O4 Restore wiring between connector B of N49 and O3 (BLK) |
| - Check for continuity of cable connecting the control unit N49 to the antenna (heated rear windscreen) O3 | |||
THE FRONT RIGHT-HAND LOUDSPEAKER DOES NOT WORK
TEST C
| TEST PROCEDURE | RESULT | CORRECTIVE ACTION | |
|---|---|---|---|
| C1 | CHECK LOUDSPEAKER | OK NOT OK | Carry out step C2 Replace speaker O5a |
| - Check for correct operation of speaker O5a | |||
| C2 | CHECK CONTINUITY | OK NOT OK | Check and if necessary replace the connector or the radio O4 which does not send the correct signal to the speaker Restore wiring between: - pin B3 of O4 and pin 1 of O5a (PNK-BLK) - pin B4 of O4 and pin 2 of O5a (BLK-PPL) |
| - Check for continuity between: - pin B3 of radio O4 and pin 1 of O5a - pin B4 of radio O4 and pin 2 of O5a | |||
Parts & tools for this job For 1992 Alfa Romeo 155
- TOOLDigital multimeterSearch: automotive digital multimeter
- PARTAssorted fuse kitSearch: car fuse assortment kit
- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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