Toyota T100 1996 Service Manual page 1897

BE−62
TROUBLESHOOTING
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the re-
placement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during sys-
tem operation and was prepared on the assumption of system component troubles (except for the wires and
connectors, etc.).
Always inspect the trouble taking the following items into consideration.
Open or short circuit of the wire harness
S
Connector or terminal connection fault
S
For audio systems with anti−theft system, troubleshooting items marked (*) indicate that "Trou-
S
bleshooting for ANTI−THEFT SYSTEM" should be carried out first.
Radio
Tape Player
Antenna
Noise
1996 TOYOTA T100 (RM449U)
BODY ELECTRICAL
No power coming in.
Power coming in, but radio not operating.
Noise present, but AM − FM not operating.
Either speaker does not work.
Either AM or FM does not work.
Reception poor (Volume faint).
Few preset tuning bands.
Sound quality poor.
Cannot set station select button.
Preset memory disappears.
Cassette tape cannot be inserted.
Cassette tape inserts, but no power.
Power coming in, but tape player not operating.
Either speaker does not work.
Sound quality poor (Volume faint).
Tape jammed, malfunction with tape speed or auto−reverse.
APS, SKIP, RPT buttons not operating.
Cassette tape will not eject.
Antenna does not fully extened or fully retract.
Antenna − related.
Noise produced by vibration or shock while driving.
Noise produced when engine starts.
− AUDIO SYSTEM
Problem
BE27H−01
No.
*1
*2
3
4
5
5
5
6
6
7
8
*9
10
11
12
13
14
*15
16
17
18
19