Toyota Sequoia (2005). Manual — part 573
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DIDAZ–01
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
DI–2087
2281
PROBLEM SYMPTOMS TABLE
TELEVISION DISPLAY ASSY
Symptom
Suspect Area
See page
Black screen.
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. AVC–LAN circuit
Display screen not stabilized (Synchronous error).
1. Power source circuit (television display assy)
2. Power source circuit (multi–display controller sub–assy)
3. Display signal circuit (multi–display controller sub–assy
– television display assy)
4. Television display assy
5. Multi–display controller sub–assy
–
–
Color on display screen is unusual (RGB signal error).
1. Rear display color bar check of display check mode
2. Display signal circuit (multi–display controller sub–assy
– television display assy)
3. Television display assy
4. Multi–display controller sub–assy
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–
DISC PLAYER CONTROLLER
Symptom
Suspect Area
See page
Only DVD screen is not displayed or not stabilized.
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (disc player controller)
3. Display signal circuit (multi–display controller sub–assy
– disc player controller)
4. Display signal circuit (multi–display controller sub–assy
– radio and navigation assy)
5. Disc player controller
6. Multi–display controller sub–assy
–
–
Only DVD is not heard or the sound quality is poor.
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (disc player controller)
3. Sound signal circuit (multi–display controller sub–assy –
disc player controller)
4. w/o Navigation system:
Sound signal circuit (multi–display controller sub–assy –
radio receiver assy)
w/ Navigation:
Sound signal circuit (multi–display controller sub–assy –
radio and navigation assy)
5. Mute signal circuit
6. Multi–display controller sub–assy
7. Disc player controller
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–
VTR TERMINAL
Symptom
Suspect Area
See page
Only display screen input from the external device is not stabi-
lized.
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. Display signal circuit (multi–display controller sub–assy
– television display assy)
4. VTR terminal
5. Multi–display controller sub–assy
–
–
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DI–2088
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
2282
Only sound quality input from the external device is poor or no
sound can be heard.
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi–display controller sub–assy –
VTR terminal)
4. VTR terminal
5. Multi–display controller sub–assy
–
–
The operation the external device cannot be performed
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. VTR terminal set signal circuit
4. VTR terminal
5. Multi–display controller sub–assy
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–
RSE SYSTEM
Symptom
Suspect Area
See page
Quality of sound from wireless headphone is poor or no sound
can be heard (all sound).
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi–display controller sub–assy –
television display assy)
4. Mute signal circuit (radio receiver assy – multi–display
controller sub–assy)
5. Mute signal circuit (disc player controller – multi–display
controller sub–assy)
6. Multi–display controller sub–assy
7. Television display assy
–
–
Quality of sound from headphone connected to headphone termi-
nal is poor or no sound can be heard (all sound).
1. Power source circuit (multi–display controller sub–assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi–display controller sub–assy –
headphone terminal)
4. Mute signal circuit
5. Multi–display controller sub–assy
6. Television display assy
–
–
Quality of sound from wireless headphone is poor or no sound
can be heard (DVD sound only).
1. Power source circuit (disc player controller)
2. Sound signal circuit (multi–display controller sub–assy –
disc player controller)
3. Disc player controller
4. Multi–display controller sub–assy
–
–
Quality of sound from headphone connected is poor or no sound
can be heard (DVD sound only).
1. Power source circuit (disc player controller)
2. Sound signal circuit (multi–display controller sub–assy –
disc player controller)
3. Disc player controller
4. Multi–display controller sub–assy
–
–
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–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
DI–2089
2283
Quality of sound from wireless headphone is poor or no sound
can be heard (radio sound only).
1. w/o Navigation System:
Sound signal circuit (multi–display controller sub–assy –
radio receiver assy)
w/ Navigation System:
Sound signal circuit (multi–display controller sub–assy –
radio and navigation assy)
2. Multi–display controller sub–assy
3. w/o Navigation System:
Radio receiver assy
4. w/ Navigation System:
Radio and navigation assy
–
–
–
Quality of sound from headphone connected is poor or no sound
can be heard (radio sound only).
1. w/o Navigation System:
Sound signal circuit (multi–display controller sub–assy –
radio receiver assy)
w/ Navigation System:
Sound signal circuit (multi–display controller sub–assy –
radio and navigation assy)
2. Multi–display controller sub–assy
3. w/o Navigation System:
Radio receiver assy
4. w/ Navigation System:
Radio and navigation assy
–
–
–
REMOTE CONTROL
Symptom
Suspect Area
See page
A remote control system does not operate.
1. A remote control system does not operate
2. Remote commander check of display check mode
3. Power source circuit (multi–display controller sub–assy)
4. Power source circuit (television display assy)
5. AVC–LAN circuit
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DIDB0–01
I28662
R23
R22
R21
DI–2090
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
2284
TERMINALS OF ECU
1.
MULTI–DISPLAY CONTROLLER SUB–ASSY
Symbols (Terminals No.)
Wiring Color
Terminal Description
Condition
Specification
L– – GND
(R23–7 – R23–29)
W – Y
Sound signal (Output)
DVD system is playing
A waveform
synchronized
with sound is
output
L+ – GND
(R23–8 – R23–29)
W – Y
Sound signal (Output)
DVD system is playing
A waveform
synchronized
with sound is
output
R– – GND
(R23–9 – R23–29)
W – Y
Sound signal (Output)
DVD system is playing
A waveform
synchronized
with sound is
output
R+ – GND
(R23–10 – R23–29)
W – Y
Sound signal (Output)
DVD system is playing
A waveform
synchronized
with sound is
output
SG1 – Body ground
(R23–11 – Body ground)
Shielded – Body ground
Ground
Always
Below 1 V
LMUT – GND
(R23–12 – R23–29)
LG – Y
Mute signal
Disc player controller is sounding
→
changing mode
Above 3.5 V
→
Below 1 V
+B1 – GND
(R23–16 – R23–29)
Y – Y
Battery
Always
10 to 14 V
(*1) SG3 – Body ground
(R23–19 – Body ground)
Shielded – Body ground
Ground
Always
Below 1 V
(*1) SGN1 – Body ground
(R23–20 – Body ground)
BR – Body ground
Ground
Always
Below 1 V
(*1) NTS1 – GND
(R23–21 – R23–29)
BR – Y
Display signal
DVD system is displayed
Pulse genera-
tion
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