| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Audio/Visual/Telematics | Section: Navigation/Multi Info Display | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002F1N015X |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Display Signal Circuit between Multi-display and Radio Receiver |
DESCRIPTION
This circuit sends a DVD image signal from the radio receiver to the display and navigation module display.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - RADIO RECEIVER) |
|
(a) Disconnect the F29 display connector. |
(b) Disconnect the F25 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F29-4 (VV-) - F25-2 (GND) |
Always |
Below 1 Ω |
|
F29-1 (VV+) - F25-1 (NTSC) |
Always |
Below 1 Ω |
|
F29-4 (VV-) - Body ground |
Always |
10 kΩ or higher |
|
F29-1 (VV+) - Body ground |
Always |
10 kΩ or higher |
|
F25-3 (SLD) - Body ground |
Always |
10 kΩ or higher |
|
|
2. |
INSPECT RADIO RECEIVER (NTSC SIGNAL) |
|
(a) Reconnect the F25 receiver connector. |
(b) Check the waveform of the radio receiver using an oscilloscope.
Measurement Condition
|
Item |
Content |
|---|---|
|
Terminal No. (Symbol) |
NTSC (F25-1) - Body ground |
|
Tool Setting |
0.2 V/DIV., 10 μsec./DIV. |
|
Condition |
DVD played on radio receiver |
OK:
Waveform is as shown in the illustration.
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