radio TOYOTA CAMRY V20 1986 Service Information

HINT: Head cleaning procedure.
(1) Raise the cassette door with your finger. Next, using
a pencil or like object, push in the guide as shown.
(2) Using a cleaning pen or cotton applicator soaked in
alcohol, clean the head surface, pinch rollers and
capstans.
(3) Push in the ºejectº button.
4. DEFECTIVE AUTO±SEARCH MECHANISM
Manual search possible but automatic search mechanism
does not function or does not stop at all receivable sta-
tions.
Possible causes:
wPoor search sensitivity (SENS button)
wDefective radio
Check if desired broadcast can
actually be received in the area.
If receivable, replace radio. Is desired broadcast receivable when
button is at ºDISTANTº position? Clean head. Does sound improve?
(See note for cleaning procedure.)Does sound improve with another
tape?
Is speaker correctly installed
(loose or too tight)?Does vibration sound
come from around
speaker?
Install correctly. If speaker
frame is bent, replace.Temporarily install
another speaker.
Okay?
Does needle move when
search button is pushed?Replace tape player. Proceed to Test 2.
Replace radio.Replace
speaker.
TEST
2
Tape bad TEST 1
Repair.
TEST
Ye s Ye s
Ye s Ye s
Ye s
Ye s
Ye s
± BODY ELECTRICAL SYSTEMAudio SystemBE±101

IF VEHICLE IS EQUIPPED WITH MOBILE
RADIO SYSTEM (HAM, CB, ETC.)
The ECU has been designed so that it will not be affected ±by out-
side interference.
However, if your vehicle is equipped with a CB radio transceiver,
etc. (even one with about 10 W output), it may, at times, have an
affect upon ECU operation, especially if the antenna and feeder are
installed nearby.
Therefore, observe the following precautions:
1. Install the antenna as far as possible from the ECU. The
ECU is located under the radio so the antenna should be installed
at the rear side of the vehicle.
2. Keep the antenna feeder as far away as possible from the
ECU wires ± at least 20 cm (7.87 in.) ± and, especially, do not wind
them together.
3. Check that the feeder and antenna are properly adjusted.
4. Do not equip your± vehicle with a powerful mobile radio system.
5. Do not open the cover or the case of the ECU unless absolutely nec-
essary. (If the IC terminals are touched, the IC
may be destroyed by static electricity.)
AIR INDUCTION SYSTEM
1. Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run out¿¿ tune.
2. Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out of tune.
ELECTRONIC CONTROL SYSTEM
1. Before removing EFI wiring connectors, terminals, etc., first discon-
nect the power by either turning the ignition switch
OFF or disconnecting the battery terminals.
2. When installing the battery, be especially careful not to
incorrectly connect the positive (+) and negative (±) cables.
3. Do not permit parts to receive a severe impact during removal or
installation. Handle all EFI parts carefully, especially the ECU.
4. Do not be careless during troubleshooting as there are numerous
transistor circuits and even slight terminal contact can cause fur-
ther troubles.
5. Do not open the ECU cover.
6. When inspecting during rainy weather, take care to prevent
entry of water. Also, when washing the engine compartment, pre-
vent water from getting on the ER parts and wiring connectors.
7. Parts should be replaced as an assembly.
± EFI SYSTEMInspection PrecautionsFI±6