Audio Video. Audio And Visual System (For Radio Receiver Type) Speaker Circuit

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200

Audio Video. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

CHECK FRONT NO. 2 SPEAKER ASSEMBLY

INSPECT REAR SPEAKER SET

AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) - Speaker Circuit

DESCRIPTION

The sound signals amplified by the radio receiver assembly are sent to the speakers from the radio receiver assembly via the speaker circuit.
If there is a short in a speaker circuit, the radio receiver assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is not a malfunction in the radio receiver assembly or speakers.

WIRING DIAGRAM

Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type).Audio And Visual System (For Radio Receiver Type) Speaker Circuit

INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

*1: for RH Side
*2: for LH Side

Disconnect the F113 and F112 radio receiver assembly connectors.

Disconnect the I1*1 and/or I10*2 front No. 1 speaker assembly connector.

Disconnect the F7*1 and/or F8*2 front No. 2 speaker assembly connector.

Disconnect the J15*1 and/or J17*2 rear speaker set connector.

Standard Resistance:

RH Side
Tester Connection	Condition	Specified Condition
F112-1 (FR+) - F7-1 (+)	Always	Below 1 Ω
F112-5 (FR-) - F7-3 (-)	Always	Below 1 Ω
F7-2 (TWR+) - I1-1	Always	Below 1 Ω
F7-4 (TWR-) - I1-2	Always	Below 1 Ω
F113-1 (RR+) - J15-1	Always	Below 1 Ω
F113-3 (RR-) - J15-2	Always	Below 1 Ω
F112-1 (FR+) - Body ground	Always	10 kΩ or higher
F112-5 (FR-) - Body ground	Always	10 kΩ or higher
F7-2 (TWR+) - Body ground	Always	10 kΩ or higher
F7-4 (TWR-) - Body ground	Always	10 kΩ or higher
F113-1 (RR+) - Body ground	Always	10 kΩ or higher
F113-3 (RR-) - Body ground	Always	10 kΩ or higher

LH Side
Tester Connection	Condition	Specified Condition
F112-2 (FL+) - F8-1 (+)	Always	Below 1 Ω
F112-6 (FL-) - F8-3 (-)	Always	Below 1 Ω
F8-2 (TWL+) - I10-1	Always	Below 1 Ω
F8-4 (TWL-) - I10-2	Always	Below 1 Ω
F113-2 (RL+) - J17-1	Always	Below 1 Ω
F113-6 (RL-) - J17-2	Always	Below 1 Ω
F112-2 (FL+) - Body ground	Always	10 kΩ or higher
F112-6 (FL-) - Body ground	Always	10 kΩ or higher
F8-2 (TWL+) - Body ground	Always	10 kΩ or higher
F8-4 (TWL-) - Body ground	Always	10 kΩ or higher
F113-2 (RL+) - Body ground	Always	10 kΩ or higher
F113-6 (RL-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

Remove the front No. 1 speaker assembly LH and/or RH (Click here).

Inspect the front No. 1 speaker assembly LH and/or RH (Click here).

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY (Click here)

OK

3.CHECK FRONT NO. 2 SPEAKER ASSEMBLY

Replace the front No. 2 speaker LH and/or RH with a known good one (Click here).

Check that the malfunction disappears.
HINT:
1. Connect all the connectors that were disconnected from the front No. 2 speaker assemblies.
2. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
3. Perform the above inspection on both LH and RH sides.
OK:
Malfunction disappears.

Go to step 4

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

4.INSPECT REAR SPEAKER SET

Remove the rear speaker set LH and/or RH (Click here).

Inspect the rear speaker set LH and/or RH (Click here).

REPLACE REAR SPEAKER SET (Click here)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)