|
Last Modified: 11-29-2007 |
1.6 J |
|
Service Category: Audio/Visual/Telematics |
Section: Audio/Video |
|
Model Year: 2008 |
Model: Sequoia |
Doc ID: RM0000033VY003X |
|
Title: AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: DESCRIPTION (2008 Sequoia) |
|
Mute Signal Circuit between Navigation Receiver Assembly and Television Display Assembly
|
DESCRIPTION
The navigation receiver assembly controls the volume according to the mute signal the television display assembly.
The mute signal is sent to reduce noise and popping sound generated switching the mode, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1.
|
CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - NAVIGATION RECEIVER)
|
|
(a) Disconnect the U2 television display assembly connector.
|
(b) Disconnect the I25 navigation receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
U2-26 (MUTE) - I25-6 (MUTE)
|
Always
|
Below 1 Ω
|
|
U2-26 (MUTE) - Body ground
|
Always
|
10 kΩ or higher
|
(d) Reconnect the television display assembly connector.
(e) Reconnect the navigation receiver assembly connector.
| OK |
|
|
|
2.
|
INSPECT TELEVISION DISPLAY ASSEMBLY
|
|
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection
|
Switch Condition
|
Specified Condition
|
|
U2-26 (MUTE) - Body ground
|
Ignition switch ACC, television display is playing → Changing modes
|
3.5 V or higher → Below 1 V
|
|
| OK |
|
|
|