Navigation System - Display Signal Circuit Between Multi-Display And Radio Receiver
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - MULTI-DISPLAY)
INSPECT RADIO RECEIVER (OUTPUT SIGNAL)
NAVIGATION SYSTEM - Display Signal Circuit between Multi-display and Radio Receiver
DESCRIPTION
This is the DVD display signal circuit from the radio receiver to the multi-display.
WIRING DIAGRAM

INSPECTION PROCEDURE
1.CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - MULTI-DISPLAY) |
Disconnect the multi-display connector J52 and radio receiver J62 connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester connection | Condition | Specified condition |
GND - SGD1 | Always | Below 1 Ω |
NTSC - NTSC | Always | Below 1 Ω |
SLD - SGND | Always | Below 1 Ω |
NTSC - Body ground | Always | 10 kΩ or higher |
GND - Body ground | Always | 10 kΩ or higher |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
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2.INSPECT RADIO RECEIVER (OUTPUT SIGNAL) |
Reconnect the radio receiver connector J62.
Measure the waveform according to the table below.
- OK:
Tester connection | Condition | Specified condition |
NTSC - Body ground | DVD display is ON | A waveform synchronized with display signals is output |
- The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope settings. A normal radio receiver operating condition can be determined if any waveform is output.
- Terminal: NTSC - Body ground
- Setting: 200 mV/DIV. 10 μs/DIV.
- Condition: DVD display is on.
OK | |
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PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
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