I have a Mission MS8 subwoofer here for repair. I had a bubbled cap and also I have a burnt part. I am hoping someone will be able to help with the value of the capacitor. The location # is C11. Or if you have schematic you can share would be much appreciated. Thanks
-
-
Re: Mission MS8 Subwoofer
can we see a high resolution, straight shot picture of your board and upload it as an Attachment. -
Re: Mission MS8 Subwoofer
https://www.flickr.com/photos/145608...posted-public/
https://www.flickr.com/photos/145608...posted-public/Comment
-
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
-
Re: Mission MS8 Subwoofer
I don't think that the capacitance is too critical here. 0.1uF is what I'd jam in there too.Comment
-
Re: Mission MS8 Subwoofer
ok Thanks guys. Will give it a try and see what happensComment
-
Re: Mission MS8 Subwoofer
It will be good to see the pictures of the whole top and bottom side of the board so we can determine the function of that cap.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
-
Re: Mission MS8 Subwoofer
Will put it back up on the bench tomorrow and take pictures. Right now I had a shipment of tv`s come in from a supplier that I needed to get done and outComment
-
Re: Mission MS8 Subwoofer
Here is a picture of a working unit, The cap is a 330nf 100v axial ceramic.
Kemet# C420C334K1R5TA or equivilant should work.Attached FilesLast edited by R_J; 03-05-2021, 11:06 AM.Comment
-
-
Re: Mission MS8 Subwoofer
atleast the conductive glue is only shorting the opamp input!Comment
-
Re: Mission MS8 Subwoofer
Hello, I'm currently having this same problem with my ms8, or at least i can see that i also have the same cap gone on the board, if thats all that is wrong im not a expert, I come from a car audio background. Is it possible to find the same value of cap say out of another component I may have around or am I wasting my time?Comment
-
I picked up this used Bose Acoustimass 10 IV speaker system. Speakers seem to work fine, but the subwoofer does not make any noise. So I took apart the unit and found some obviously failed (burnt) components:
- 1x 3.14 A @ 250V main circuit fuse
- 1x bridge rectifier GBU601. there's actually two of these on the board, one is obviously burnt and the other does not seem to have any anomalies like shorts. However I figure may as well replace both.
- 2x diode. This is tricky because the only markings I see on it are: "617 402". No current rating or anything else.... -
I've got a subwoofer that I've had for nearly 20 years, it did come with a basic remote which I've lost. It's a generic make of subwoofer, I can't see a brand sticker on it. It comes with 2 speakers.
Question recently I've connected it up to my tv which has greatly improved the sound on my tv, however I'd like to be able to mute the subwoofer when ads come on or just mute it when the phone rings etc. I tried using a cheap all in one tv remote on the subwoofer and the volume button would only work to increase volume but not turn it down or mute it
Is there a way of... -
I’ve got a subwoofer that I’ve had for nearly 20 years, it did come with a basic remote which I’ve lost. It’s a generic make of subwoofer, I can’t see a brand sticker on it. It comes with 2 speakers.
Question recently I’ve connected it up to my tv which has greatly improved the sound on my tv, however I’d like to be able to mute the subwoofer when ads come on or just mute it when the phone rings etc. I tried using a cheap all in one tv remote on the subwoofer and the volume button would only work to increase volume but not turn it down or mute it
Is there... -
Good day ladies and gentleman!
I am currently trying to repair a Grundig Vision 9 37 9880 T USB LCD TV for a friend that has a weird audio problem. Basically everything works fine except for the heavily distorted sound when the Subwoofer module is connected and there is a buzzing sound coming from the PSU PCB.
This seems to be a rather rare TV so there is not much prior on topic help to be found however a service manual is available at the usual sources (Electro Tanya i.e.).
I think the PSU buzzing comes from one of the coils near the bridge rectifier but... -
I get a faint, low hum through my PC speakers, which connect to the subwoofer in a 2.1 speaker system. The hum drives me crazy and makes me stressed. When I turn off the subwoofer, everything is quiet and I start to relax, lol.
Here's an audio clip of the sound coming from my speakers:
https://vocaroo.com/16HaryHwTx78
I recorded with my phone's mic right next to the speaker, and the mic picked up a lot of speaker noise over top of the hum. But I don't hear that noise in the room, I just hear the lower-pitched hum that's buried beneath all the other...
Comment