Home Audio/Visual/Telematics Audio/Video REAR SEAT ENTERTAINMENT SYSTEM
Last Modified: 11-27-2007 1.6 U
Service Category: Audio/Visual/Telematics Section: Audio/Video
Model Year: 2008 Model: LX570 Doc ID: RM000002IPS007X
Title: AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: TERMINALS OF ECU (2008 LX570)

TERMINALS OF ECU

1. CHECK MULTI-DISPLAY SELECTOR (RSE ECU)



Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

L22-1 (+B) - L22-12 (GND)

L - W-B

Battery

Always

11 to 14 V

L22-6 (ACC) - L22-12 (GND)

GR - W-B

Ignition (ACC)

Engine switch on (ACC)

11 to 14 V

L25-6 (ADPI) - L22-12 (GND)

R - W-B

Ground

Always

Below 1 Ω

L22-11 (GND1) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L22-15 (SG1) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L22-14 (HP1L) - L22-12 (GND)

W - W-B

Sound signal (Output)

RSE system playing (Headphone)

A waveform synchronized with sound is output

L22-13 (HP1R) - L22-12 (GND)

B - W-B

Sound signal (Output)

RSE system playing (Headphone)

A waveform synchronized with sound is output

L25-11 (SLDE) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L25-9 (TVL+) - L22-12 (GND)

W - W-B

Sound signal

External device system playing (At time of VTR jack use)

A waveform synchronized with sound is output

L25-7 (TVR+) - L22-12 (GND)

B - W-B

Sound signal

External device system playing (At time of VTR jack use)

A waveform synchronized with sound is output

L22-5 (NTS3) - L22-12 (GND)

B - W-B

Display signal

Display on (Television display assembly)

Pulse generation

(see waveform 1)

L22-4 (SGN3) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L22-19 (SLDC) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L22-18 (SG2) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L22-17 (HP2L) - L22-12 (GND)

W - W-B

Sound signal (Output)

RSE system playing (Headphone)

A waveform synchronized with sound is output

L22-16 (HP2R) - L22-12 (GND)

B - W-B

Sound signal (Output)

RSE system playing (Headphone)

A waveform synchronized with sound is output

L25-4 (SGN4) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L25-3 (NTS4) - L22-12 (GND)

B - W-B

Display signal

External device system displayed (At time of VTR jack use)

Pulse generation

(see waveform 1)

L25-5 (SLDD) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L23-13 (L6-) - L22-12 (GND)

R - W-B

Sound signal (Output)

DVD system playing

A waveform synchronized with sound is output

L23-14 (L6+) - L22-12 (GND)

G - W-B

Sound signal (Output)

DVD system playing

A waveform synchronized with sound is output

L23-15 (R6-) - L22-12 (GND)

W - W-B

Sound signal (Output)

DVD system playing

A waveform synchronized with sound is output

L23-16 (R6+) - L22-12 (GND)

B - W-B

Sound signal (Output)

DVD system playing

A waveform synchronized with sound is output

L23-17 (SLD6) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L23-18 (MUT6) - L22-12 (GND)

G - W-B

Mute signal

RSE system playing → changing modes

3.5 V or higher → Below 1 V

L22-2 (+B1) - L22-12 (GND)

L - W-B

Battery

Always

11 to 14 V

L22-12 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

L22-7 (ACC1) - L22-12 (GND)

GR - W-B

Ignition (ACC)

Engine switch on (ACC)

11 to 14 V

L23-4 (L5-) - L22-12 (GND)

R - W-B

Sound signal (Input)

RSE system is playing

A waveform synchronized with sound is output

L23-3 (L5+) - L22-12 (GND)

G - W-B

Sound signal (Input)

RSE system is playing

A waveform synchronized with sound is output

L23-2 (R5-) - L22-12 (GND)

W - W-B

Sound signal (Input)

RSE system is playing

A waveform synchronized with sound is output

L23-1 (R5+) - L22-12 (GND)

B - W-B

Sound signal (Input)

RSE system is playing

A waveform synchronized with sound is output

L23-6 (MUT5) - L22-12 (GND)

G - W-B

Mute signal

RSE system is playing → changing modes

3.5 V or higher → Below 1 V

L23-11 (L3-) - L22-12 (GND)

G - W-B

Sound signal (Output)

RSE system is playing

A waveform synchronized with sound is output

L23-10 (L3+) - L22-12 (GND)

R - W-B

Sound signal (Output)

RSE system is playing

A waveform synchronized with sound is output

L23-9 (R3-) - L22-12 (GND)

W - W-B

Sound signal (Output)

RSE system is playing

A waveform synchronized with sound is output

L23-8 (R3+) - L22-12 (GND)

B - W-B

Sound signal (Output)

RSE system is playing

A waveform synchronized with sound is output

L23-7 (MUT3) - L22-12 (GND)

B - W-B

Mute signal

RSE system is playing → changing modes

3.5 V or higher → Below 1 V

L23-19 (MUT4) - L22-12 (GND)

G - W-B

Mute signal

Disc player playing → changing modes

3.5 V or higher → Below 1 V

L23-20 (L4-) - L22-12 (GND)

R - W-B

Sound signal (Input)

Disc player playing

A waveform synchronized with sound is output

L23-21 (L4+) - L22-12 (GND)

L - W-B

Sound signal (Input)

Disc player playing

A waveform synchronized with sound is output

L23-22 (R4-) - L22-12 (GND)

W - W-B

Sound signal (Input)

Disc player playing

A waveform synchronized with sound is output

L23-23 (R4+) - L22-12 (GND)

B - W-B

Sound signal (Input)

Disc player playing

A waveform synchronized with sound is output

L22-24 (NTS2) - L22-12 (GND)

B - W-B

DVD display signal

Disc player playing

DVD system displayed

Pulse generation

(see waveform 1)

L22-25 (SGN2) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L22-26 (SLDB) - L22 - 12 (GND)

Shielded - Body ground

Ground

Always

Below 1 Ω

L24-11 (CNT2) - L22-12 (GND)

V - W-B

Multi-display selector signal input 2 control signal

RSE system playing

3.5 V or higher → Below 1 V

L24-12 (CNT3) - L22-12 (GND)

W - W-B

Multi-display selector signal input 3 control signal

RSE system playing

3.5 V or higher → Below 1 V

L24-13 (CNT4) - L22-12 (GND)

R - W-B

Multi-display selector signal input 4 control signal

RSE system playing

3.5 V or higher → Below 1 V

L24-14 (CNT5) - L22-12 (GND)

L - W-B

Multi-display selector signal input 5 control signal

RSE system playing

3.5 V or higher → Below 1 V

L24-9 (ADPO) - L22-12 (GND)

B - W-B

Ground

Always

Below 1 Ω

L24-2 (L1-) - L22-12 (GND)

G - W-B

Sound signal (Output)

RSE system playing

A waveform synchronized with sound is output

L24-3 (L1+) - L22-12 (GND)

R - W-B

Sound signal (Output)

RSE system playing

A waveform synchronized with sound is output

L24-4 (R1-) - L22-12 (GND)

W - W-B

Sound signal (Output)

RSE system playing

A waveform synchronized with sound is output

L24-5 (R1+) - L22-12 (GND)

B - W-B

Sound signal (Output)

RSE system playing

A waveform synchronized with sound is output

L24-1 (SLD1) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L24-6 (MUT1) - L22-12 (GND)

G - W-B

Mute signal

RSE system playing → changing modes

3.5 V or higher → Below 1 V


(a) Using an oscilloscope, check the waveform.

Waveform 1 (reference)

Item

Content

Terminal No. (Symbol)

  • L22-5 (NTS3) - Body ground
  • L22-24 (NTS2) - Body ground
  • L25-3 (NTS4) - Body ground

Tool Setting

200 mV/DIV., 10 μsec./DIV.

Condition

DVD displayed on television display

2. CHECK TELEVISION DISPLAY ASSEMBLY



Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

L26-16 (GND) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L26-3 (R1+) - L26-16 (GND)

B - W

Sound signal (Input)

RSE system sounding (Headphone)

A waveform synchronized with sound is output

L26-4 (R1-) - L26-16 (GND)

W - W

Sound signal (Input)

RSE system sounding (Headphone)

A waveform synchronized with sound is output

L26-5 (L1+) - L26-16 (GND)

R - W

Sound signal (Input)

RSE system sounding (Headphone)

A waveform synchronized with sound is output

L26-6 (L1-) - L26-16 (GND)

G - W

Sound signal (Input)

RSE system sounding (Headphone)

A waveform synchronized with sound is output

L26-29 (ACC) - L26-16 (GND)

GR - W

Ignition (ACC)

Engine switch on (ACC)

11 to 14 V

L26-14 (+B) - L26-16 (GND)

L - W

Battery

Always

11 to 14 V

L26-19 (TX1+) - L26-16 (GND)

W - W

AVC-LAN communication signal

Engine switch on (ACC)

2 to 3 V

L26-20 (TX1-) - L26-16 (GND)

L - W

AVC-LAN communication signal

Engine switch on (ACC)

2 to 3 V

L26-8 (SLD) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

L26-10 (SGN1) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

L26-9 (NTSC) - L26-16 (GND)

B - W

Display signal

Television display displayed

Pulse generation

(see waveform 1)

L26-11 (ADPG) - L26-16 (GND)

B - W

Ground

Always

Below 1 Ω

L26-23 (MUT1) - L26-16 (GND)

G - W

Mute signal

RSE system playing → changing modes

3.5 V or higher → Below 1 V

L26-25 (CNT2) - L26-16 (GND)

V - W

Multi-display selector signal input 2 control signal

RSE system playing

3.5 V or higher → Below 1 V

L26-26 (CNT3) - L26-16 (GND)

W - W

Multi-display selector signal input 3 control signal

RSE system playing

3.5 V or higher → Below 1 V

L26-27 (CNT4) - L26-16 (GND)

R - W

Multi-display selector signal input 4 control signal

RSE system playing

3.5 V or higher → Below 1 V

L26-28 (CNT5) - L26-16 (GND)

L - W

Multi-display selector signal input 5 control signal

RSE system playing

3.5 V or higher → Below 1 V

L32-1 (GVIF) - L26-16 (GND)

B - W

Display image signal

-

-

L48-1 (GVIF) - L26-16 (GND)

B - W

Display image signal

-

-


(a) Using an oscilloscope, check the waveform.

Waveform 1 (reference)

Item

Content

Terminal No. (Symbol)

L26-9 (NTSC) - Body ground

Tool Setting

200 mV/DIV., 10 μsec./DIV.

Condition

DVD displayed on television display

3. CHECK HEADPHONE TERMINAL



Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

9 (HP1R) - 11 (SGN1)

B - Shielded

Sound signal (Input)

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

10 (HP1L) - 11 (SGN1)

W - Shielded

Sound signal (Input)

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

11 (SGN1) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

1 (HP2R) - 3 (SGN2)

B - Shielded

Sound signal (Input)

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

2 (HP2L) - 3 (SGN2)

W - Shielded

Sound signal (Input)

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

3 (SGN2) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

5 (VAR+) - Body ground

B - Body ground

External audio right sound output signal

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

6 (VAL+) - Body ground

W - Body ground

External audio left sound output signal

External device system sounding (At time of VTR jack use)

A waveform synchronized with sound is output

7 (VA-) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

8 (ADPG) - Body ground

R - Body ground

Ground

Always

Below 1 Ω

13 (VV+) - Body ground

B - Body ground

Display signal

VTR displayed

Pulse generation

14 (VV-) - Body ground

W - Body ground

Ground

Always

Below 1 Ω

15 (SG) - Body ground

Shielded - Body ground

Ground

Always

Below 1 Ω

4. CHECK RADIO RECEIVER AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: TERMINALS OF ECU (2008 LX570)

5. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY OR MULTI-DISPLAY AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: TERMINALS OF ECU (2008 LX570)