| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Audio/Visual/Telematics | Section: Audio/Video | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002IQ100CX |
| Title: AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Sound Signal Circuit between Multi-display Controller and Television Display |
DESCRIPTION
This is the sound signal circuit from the multi-display selector to the television display.
HINT:
"Multi-display Controller" refers to the multi-display selector.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK TELEVISION DISPLAY ASSEMBLY |
|
(a) Disconnect the L26 display connector. |
(b) Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions shown in the chart below.
OK:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L26-5 (L1+) - Body ground |
Audio sound is being produced |
A waveform synchronized with sound is output |
|
L26-6 (L1-) - Body ground |
Audio sound is being produced |
A waveform synchronized with sound is output |
|
L26-3 (R1+) - Body ground |
Audio sound is being produced |
A waveform synchronized with sound is output |
|
L26-4 (R1-) - Body ground |
Audio sound is being produced |
A waveform synchronized with sound is output |
|
|
2. |
CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY SELECTOR - TELEVISION DISPLAY ASSEMBLY) |
|
(a) Disconnect the L24 selector connector. |
(b) Disconnect the L26 display connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L24-3 (L1+) - L26-5 (L1+) |
Always |
Below 1 Ω |
|
L24-2 (L1-) - L26-6 (L1-) |
||
|
L24-5 (R1+) - L26-3 (R1+) |
||
|
L24-4 (R1-) - L26-4 (R1-) |
||
|
L24-3 (L1+) - Body ground |
Always |
10 kΩ or higher |
|
L24-2 (L1-) - Body ground |
||
|
L24-5 (R1+) - Body ground |
||
|
L24-4 (R1-) - Body ground |
|
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