NAVIGATION SYSTEM - Display Signal Circuit between Multi-display and Radio Receiver

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

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

• HINT:

• 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.

• Oscilloscope wave

• Terminal: NTSC - Body ground

• Setting: 200 mV/DIV. 10 μs/DIV.

• Condition: DVD display is on.