Radio Troubleshooting - Toyota Celica 2000 Repair Manual

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 lor the wires and
connectors, etc.).
Always inspect the trouble taking the following items into consideration.
Open or short circuit of the wire harness
•
Connector or terminal connection fault
Rad'.o not operatirtg when power switdl turned to 'ON'
RadiO
Display indicates when power sw1tch ttuned to 'ON', but no sound (including
'noise') is produced.
No1sc present. but AM - FM not opercl•ng_
Any speaker does not work_
Any AM or
Few preset turn;ng bands.
Reception poor_
Sound quaiFty poor.
Preset memory disappears.
Tape Player Cassette tape cannot
Cassette tape inserted, but no power.
Power comiflg in, but t ape player not operating_
Any speaker does not work
Sound quality poor.
Tape jammed, malfunction with tape speed or auto--- -r e verse.
Cassette tape wilt not eject
CD Player CD cannot
CD inserted, but no power
Power comiflg in, but CO player not operating.
Sound jumps.
Sound quality poor (Volume faint}.
Any speakf'r does not work
CD will not be ejected.
Power Amplifier
No power coming in.
Power coming in, but pow or amplifier not operating.
Any speaker does not work.
Noise
No1se occurs
Nmse produced b y vibration or shock while driviflg.
.
Norse produced whon engine starts.
"
The term AM tncludes LW,MW and SW, and the term
-
BODY ELECTRICAL
Problem
I'M
docs not worl<.
be mserted
inserted
be
"
AUDIO SYSTEM
FW
"
tncludes UKW.
BE-97
No.
'
2
3
4
5
5
6
7
8
9
"
"
"
1 3
"
"
,
,
"
1 8
1 8
20
"
22
23 "
25
26
28