No sound from Left side- Intermittent sound from right side

Question

Speaker

Repairs for a broad range of sound-generating equipment including speakers, sound bars, and speaker components.

2702 个问题查看全部

Majesty @majesty68214

声誉积分: 20.7千

86

89

33

发帖于: 2011年9月28日

更多选项

No sound from Left side- Intermittent sound from right side

Ok, I bought a soundbar similar to a Vizio Soundbar from eBay and after my friend heard the soundbar he went ahead and ordered one from eBay himself. He wasn't as lucky as me and his soundbar has no sound from the left side and the right side goes off after some use. He brought this in to me since I'm a little better than he is at this, but I'm by no means an electronics expert. Upon close inspection of the components and extensive inspection of the board and it's capacitors, all look good, except for the fact that there's a 14 Pin and 4 Pin dock on the board with no wires or connectors attached to them. There are no loose wires or any possible connections left on the device. I'm assuming these 2 docks might go together. Is there any way to find out if these go together, or whats missing for that matter? Please Help. Can't find any documentation online.

已回答！ 显示答案我也有这个问题

这是一个好问题吗？

是否

得分 4

11条评论

I'm not good with these foto editing tools, but if you look closely you'll see the two rectangles marking the connectors. ABCellars, where are you? ;)

由 Majesty 完成的 2011年9月28日

Bump. Stumped here.

由 Majesty 完成的 2011年9月30日

Have you opened yours to compare? It sounds like a cap problem tho.. Try tracing speaker wires back to board and concentrate on caps nearest would be my start. Oldturkey prob has the manual, no idea where he gets them... Like a magician! Try dropping ab or ot03 an email.. Always been super quick replies. Best of luck, jen

由 pollytintop 完成的 2011年10月1日

Just thinking the 4 pin reminds me of speaker connection off tv set.. L,R speakers + ground? Are you missing connector from left?

由 pollytintop 完成的 2011年10月1日

Majesty, do you have more info on the sound bar? Model number etc. could be helpful in getting more info on it, there are a couple of different ones out there. I am with pollytintop on that one; the unoccupied connectors do not necessarily pertain to your issue. Those may be expansion/test/diagnostic plugs. Check your wiring, traces and caps. check on your IC's and if you can gt as a couple numbers of the IC chips itself. I was wondering if you are having issues with bad soldering, loose chips etc. If you have an IR thermometer, try to see what the temp of the chips is during operation.

由 oldturkey03 完成的 2011年10月1日

显示更多的6条评论

添加一条评论

1个答案

已选择的解决方案

oldturkey03 @oldturkey03

声誉积分: 782.4千

1.1千

893

2.3千

发帖于: 2011年10月3日

更多选项

Is it something like this that could mean that it is a 12mhz frequency Ceramic resonator

Here is a data sheet and as far as I can tell the main thing here are the frequencies....rest is pretty much just a design issue.

I know it's not an answer but the only way to add pics....;-) will delete after

这个答案有帮助吗？

是否

得分 3

15条评论:

that's what I was looking at but a 16mhz? for the 160.b :-)

由 pollytintop 完成的 2011年10月3日

Yes, I have found and ordered that one. The metallic one in the second pic is a crystal resonator. It has the 12.2C59 marking and I can't seem to decode that. The ceramic one was 16mhz. I have found that one.

由 Majesty 完成的 2011年10月3日

http://www.abracon.com/index.htm is the manufacturer, has competitor cross reference on the website as well. Still no luck with the complete number, but I am 99.8% sure its a 12 mhz

由 oldturkey03 完成的 2011年10月3日

Oh so we are done with the M&M and the 12.2C59 belongs to the silver bullet:-)?

由 oldturkey03 完成的 2011年10月3日

yes old turkey. lol You have no idea how long I been on this computer investigating these tiny critters.

由 Majesty 完成的 2011年10月3日

显示更多的10条评论

添加一条评论

I'm not good with these foto editing tools, but if you look closely you'll see the two rectangles marking the connectors. ABCellars, where are you? ;) — Majesty
Have you opened yours to compare? It sounds like a cap problem tho.. Try tracing speaker wires back to board and concentrate on caps nearest would be my start. Oldturkey prob has the manual, no idea where he gets them... Like a magician! Try dropping ab or ot03 an email.. Always been super quick replies. Best of luck, jen — pollytintop
Just thinking the 4 pin reminds me of speaker connection off tv set.. L,R speakers + ground? Are you missing connector from left? — pollytintop
Majesty, do you have more info on the sound bar? Model number etc. could be helpful in getting more info on it, there are a couple of different ones out there. I am with pollytintop on that one; the unoccupied connectors do not necessarily pertain to your issue. Those may be expansion/test/diagnostic plugs. Check your wiring, traces and caps. check on your IC's and if you can gt as a couple numbers of the IC chips itself. I was wondering if you are having issues with bad soldering, loose chips etc. If you have an IR thermometer, try to see what the temp of the chips is during operation. — oldturkey03
Yes, I have found and ordered that one. The metallic one in the second pic is a crystal resonator. It has the 12.2C59 marking and I can't seem to decode that. The ceramic one was 16mhz. I have found that one. — Majesty
http://www.abracon.com/index.htm is the manufacturer, has competitor cross reference on the website as well. Still no luck with the complete number, but I am 99.8% sure its a 12 mhz — oldturkey03
Oh so we are done with the M&M and the 12.2C59 belongs to the silver bullet:-)? — oldturkey03
yes old turkey. lol You have no idea how long I been on this computer investigating these tiny critters. — Majesty

Speaker

No sound from Left side- Intermittent sound from right side

1个答案

添加你的答案