To Next Page
L
Lindsey MosesAug 27, 2025
Why is there no analog or AM/FM audio on my Bose 3-2-1GS II Home Theater System?
- AaustinrobertAug 27, 2025
If your Bose Home Theater System has no analog or AM/FM audio, but digital audio is normal, check U4000.
Why is there no analog or AM/FM audio on my Bose 3-2-1GS II Home Theater System?
If your Bose Home Theater System has no analog or AM/FM audio, but digital audio is normal, check U4000.
How to troubleshoot no optical audio on Bose 3-2-1GS II Home Theater System?
If there is no optical audio on your Bose Home Theater System, check the optical SPDIF input connector J8000 for bent legs on the bottom of the PCB.
Why is my Bose Home Theater System remote not responding?
If your Bose Home Theater System is not responding to the remote, check transistor Q1 (270841-001) on the IR board and replace it if defective. Ensure that the IR board ribbon cable is properly seated. Also, check that the ribbon cable from the button board to the main PCB at J6700 is properly seated.
How to fix no power to console on Bose 3-2-1GS II Home Theater System?
If your Bose Home Theater System console has no power, check the seating of cable 271561-190 between the DSP and I/O board. Also, check F1 on the Input/Output PCB and the console cable (269997-001).
General| Audio Channels | 2.1 |
|---|---|
| Type | Home Theater System |
| Number of Speakers | 2 |
| Subwoofer | Yes |
| Remote Control | Yes |
| Media Playback | DVD, CD |
Procedures for testing leakage current.
Procedures for testing insulation resistance.
Exploded view of the 3-2-1 II console assembly.
Exploded view of the 3-2-1GSX console assembly.
Final resistors for the console main PCB.
Final capacitors for the console main PCB.
More transistors for the console main PCB.
Additional resistors for the console tuner PCB.
More capacitors for the console tuner PCB.
More resistors for the bass module DSP/Amplifier PCB.
Final capacitors for the bass module DSP/Amplifier PCB.
Steps to remove the front outer bezel.
Steps to remove the console's top cover.
Steps to remove the inner bezel with PCBs.
Steps to remove the tuner PCB.
Steps to remove the DVD/CD drive.
Steps to remove the hard drive assembly (GSX only).
Steps to remove the main PCB assembly.
Steps to remove the bass module's rear enclosure.
Steps to remove the bass module's main PCB.
Disassembly for standard arrays (grille/nameplate).
Disassembly for Gemstone arrays (grille/driver).
Test for analog audio input/output performance.
Test for coaxial digital audio input/output.
Test for optical digital audio input/output.
