iFixit - Answers With Device "Home Theater and Compact Systems"

Bose 3-2-1 Home Entertainment System: Stop/Eject button will not open, it try's to, seems stuck.

Sun, 14 Apr 2019 09:43:01 -0700

How do you open up Bose Model AV3-2-1 Media Center to get to stuck optical drive?

Thank you for the information, I will be able to disassemble till Tuesday, I will keep you updated, once again thank you for your time.

⟐ Commented 4月 14, 2019 at 9:43 GMT-7

JVC TH-M303 Home Theater System: No sound out of subwoofer despite the green light

Sat, 09 Mar 2024 19:20:15 -0700

I recently had to unplug my sub due to a move and when I went to connect it back it isn't working. The green light is lit, but there isn't any sound coming from it. The floor speaker have sound output, but the sub doesn't. It also makes this loud cracking and popping noise if I touch the connection cable while on. If the noise is too loud the sub will automatically shut off and then turn back on, but still no sound. Could there be an issue with the connector plug? I did notice a pin or two were bent and I straightened them back. I've had this system since 2005 and it's never given me any issues until now. Thanks for any help you're able to offer.

⟐ Commented 3月 09, 2024 at 19:20 GMT-7

Bose 3-2-1 Home Entertainment System: Bose AV 321 Subwoofer Not Working.

Fri, 09 Jul 2021 04:18:43 -0700

Bose Service centre says the parts are not available in India hence can’t repair. Buyers of bose are passionate about sound, difficult to just give up.

The Bass Module stopped working after a short circuit but the speakers are working.

Who would be able to fix this?

⟐ Commented 7月 09, 2021 at 4:18 GMT-7

Bose 3-2-1 Home Entertainment System: No sound output from Bose 3-2-1 Base AccustiMass Module.

Sat, 09 Nov 2024 04:40:27 -0700

My 3-2-1 Bose AccustiMass Base Module no longer emits any sound. The LH and RH speakers operate properly. Input selections AUX, CD/DVD, VIDEO 1 and VIDEO 2 are also OK?

How can I troubleshoot and repair. Also, a schematic and parts list of the module circuit board would help.

⟐ Answer edited 11月 09, 2024 at 4:40 GMT-7

Bose 3-2-1 Home Entertainment System: DVD plays sound but no picture

Sun, 12 Jun 2022 20:39:09 -0700

The DVD plays sound but there is no picture. I replaced the HDMI cable and the problem remains. If I unhook the Bose system and install a different DVD player directly to my TV, I get both the sound and the picture

⟐ Commented 6月 12, 2022 at 20:39 GMT-7

JVC TH-M303 Home Theater System: Why is bass speaker not working yet the sate-light speakers are Ok

Sat, 23 Jul 2016 07:47:46 -0700

Hi,

I have a problem with this system, the five sate-light speakers are working, but the bass is not working.what could be the problem?

Thank you

Mboloma

⟐ Answer accepted 7月 23, 2016 at 7:47 GMT-7

Bose 3-2-1 Home Entertainment System: Bose 3-2-1 Will not power up

Thu, 25 Jan 2024 13:11:52 -0700

Had several power interruptions. When power came back on, system would dimly light up for 5-10 seconds, then go off. Can not turn it on using remote or button. Have tried unplugging, waiting 60 seconds, then trying again. No luck. It is a series 1 model. Bose says it no longer supports this model.

⟐ Answer edited 1月 25, 2024 at 13:11 GMT-7

Bose 3-2-1 Home Entertainment System: No fiber optic audio sound connection

Mon, 07 Dec 2020 11:45:43 -0700

Everything on the receiver works except the fiber optic audio connection - so I have no sound to the speakers

⟐ Answer edited 12月 07, 2020 at 11:45 GMT-7

JVC TH-M303 Home Theater System: Why does it randomly pop and fizzle?

Wed, 18 Jan 2023 17:53:17 -0700

Everythings works fine but every now and the it wil emit a crackling/static/popping sound until i turn it off. Then ill turn it on and itll be fine for however long and do it again.

⟐ Answered 1月 18, 2023 at 17:53 GMT-7

Home Theater and Compact Systems: JBL SB-250 Soundbar IR Receiver / remote not working

Thu, 21 Jul 2022 07:52:32 -0700

I can confirm the TSOP38238 works like a charm. Thanks:)

Hi, thanks for reading my question:).

My IR Receiver stopped working “remote works fine, checked with phone camera, and double checked trying to pair my tv remote“.

I Guess the sensor went bad, I tried to measure any change in resistance while pointing the remote on it, but no sign of any life.

I want to replace it with a new one, but I don’t know what to get.. I was thinking about the TSOP38238.

Can some one help me out?

Cheers:)

''''

Nederlands antwoord is ook prima:)

⟐ Commented 7月 21, 2022 at 7:52 GMT-7

Bose 3-2-1 Home Entertainment System: How can I manually open dvd tray

Fri, 11 May 2018 09:11:48 -0700

dvd try wont open makes rattling sound.

need to tear down so i can see whats the problem.

⟐ Answer accepted 5月 11, 2018 at 9:11 GMT-7

JVC TH A35: Only the sub and center speaker working?

Mon, 30 Sep 2024 12:52:32 -0700

I have this home cinema with only the subwoofer and the central speaker working. The unit boots up with blue light, so no protection mode nor short detected. All fonctions are available (radio, cd, aux etc...).
I have the schematic of it but no idea what to look at and how. Seems that the sub and center speaker are both connected to the same relay but I don't get how the 3 other have failed as they are all powered from the same supply?

Home Theater and Compact Systems: Bose Wave radio will not power up

Fri, 10 Apr 2026 15:16:27 -0700

It will not go past " please wait"

⟐ Commented 4月 10, 2026 at 15:16 GMT-7

JVC TH-M303 Home Theater System: Where can I buy an s wire

Tue, 02 Aug 2016 21:05:00 -0700

where can i buy the wire that goes connected to the bass speaker

⟐ Answered 8月 02, 2016 at 21:05 GMT-7

Bose 3-2-1 Home Entertainment System: How do you open it without damage?

Fri, 23 Aug 2024 13:28:06 -0700

My unit has failed after so many years of use. I’d like to open it up and see what I see to try and fix it.

How do you open it without breaking clips or marking the plastics? I can’t find an obvious way to disassemble the main unit.

There are only a couple videos on YouTube showing how to open this device and they all use a flat screwdriver to pry against the plastic which leaves serious marks and dents in the device. I have tried prying there with my ifixit plastic tools but no luck: I can’t get it to open.

I can un clip the front faceplate (the gray one) but can’t fully remove it because the DVD tray door is stuck shut and holds it. The unit won’t power so I can’t open the DVD tray and I don’t see any manual release for it.

Any pointers appreciated.

⟐ Answered 8月 23, 2024 at 13:28 GMT-7

Sony HT-CT150: Why is my Sony music system not starting

Mon, 04 May 2026 20:42:55 -0700

My music system is not getting connected

⟐ Commented 5月 04, 2026 at 20:42 GMT-7

Bose Cinemate 1 SR: Speaker noise is going in and out like wire is lose or something

Sat, 18 Apr 2026 14:59:37 -0700

My speaker is going in and out like there is a lose wire. I have the back off but how do I get to the speaker? Can someone find or make a video for that because I can figure it out without having to cut the box open. Help

⟐ Answer edited 4月 18, 2026 at 14:59 GMT-7

Home Theater and Compact Systems: Sony MHC-GN100D control buttons issue.

Sat, 08 Nov 2025 06:10:13 -0700

Hello.

For all that don't know, The model above is a music player from about 2005, and i am facing some issues with it.

I got it repaired a few years ago for fist time and then 1 year 6 months ago for the second time. The issue was that a few buttons did not work. The guy i gave it to repaired it. But now all the same buttons have gone bad AGAIN. And they have gone bad together, and hence i believe it's not the actual buttons, but some sort of component like a chip, or capacitors etc. The schematics for this machine are available online and i will be attaching those if they help. The guy charged a heck lot of money and hence i wanna repair it myself. I have prior experience opening and repairing electronics and hence i believe i can do it.

If someone can help me, almost everything on the game , video etc has gone bad. Is there a common link to those? WHat could i possibly check?
Everything relating to DVD does not work at all.

The remote functioned normally but now the remote has also died. The IR sensor does not show the purple light it used to. So its the remote and not the device's fault.

ALso, can the DVD player's lens be adjusted? Can someone help with that? I have seens various people make lenses more stronger with a potentiometer they turned on various consoles. Can the same be done for mine?

THanks in advance

If you have anymore questions, feel free to ask.

The operating instructions

Service manual and schematics

⟐ Commented 11月 08, 2025 at 6:10 GMT-7

Bose 3-2-1 Home Entertainment System: Display is completly dark

Sun, 12 Jan 2025 11:02:33 -0700

The unit works, but the display is completely dark. Is there a way to fix this?

⟐ Commented 1月 12, 2025 at 11:02 GMT-7

Home Theater and Compact Systems: BOSE Radio AWRC-1G CD player won't play

Wed, 24 Apr 2024 13:30:12 -0700

Hi! My BOSE Radio AWRC-1G CD player will accept a cd, but won't play it. Everything else works just fine.

Is there any hope of repair or replacement?

⟐ Commented 4月 24, 2024 at 13:30 GMT-7