Audio And Visual System (For Radio Receiver Type) Sound Signal Circuit Between Radio Receiver And Stereo Jack Adapter
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)
AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) - Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter |
DESCRIPTION
The No. 1 stereo jack adapter assembly sends an external device sound signal to the radio receiver assembly through this circuit.The sound signal that has been sent is amplified by the radio receiver assembly, and then is sent to the speakers.If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the radio receiver assembly or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER) |
Disconnect the R27 and R28 radio receiver assembly connectors.
Disconnect the N3 No. 1 stereo jack adapter assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
R27-28 (VAL+) - N3-6 (ALO)
| Always
| Below 1 Ω
|
R27-26 (VAR+) - N3-5 (ARO)
|
R27-27 (VA-) - N3-7 (ASGN)
|
R27-11 (AGND) - N3-9 (AGND)
|
R27-25 (ADPG) - N3-8 (AUXO)
|
R28-2 (US1-) - N3-2 (UDO-)
|
R28-3 (US1+) - N3-3 (UDO+)
|
R27-28 (VAL+) - Body ground
| Always
| 10 kΩ or higher
|
R27-26 (VAR+) - Body ground
|
R27-27 (VA-) - Body ground
|
R27-11 (AGND) - Body ground
|
R27-25 (ADPG) - Body ground
|
R28-2 (US1-) - Body ground
|
R28-3 (US1+) - Body ground
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
