I have no sound on my hitachi 61swx12b - Hitachi 61SWX12B 61" Rear Projection Television

If you go into the customer menu and select convergence and red or blue are skewed and will not adjust---you have a convergence circuit problem.

61SWX12B uses two of the STK-392-110 convergence IC chips. Both chips and any bad protect resistors around them need to be replaced and the set adjusted with the Hitachi remote.

Most of the time just both chips need to be replaced and the set adjusted.

Considering you can buy all the parts needed for under 30 dollars on Ebay if you or someone you know can do this repair you can save a lot of money--most shops are going to get 300 or more. I can give you general instructions and tell you the best seller to get the chips from on Ebay---I buy the ones I use there.

Let me know if you have questions or need advice-I am here to help people.

If this information has helped you rate this solution as I do this here FOR FREE.

SD TECH.

The convergece amplifiers are bad and must be replaced. STK392-110. Also, there may be some open resistors.

for a owners manual, click -->here<--

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clarkco

Hello,

Check what is happening when you press flash focus?It completes 1 full cycle or not?
If not complete 1 full cycle check small value resistors on convergence board.All RK series resisitors..

Dont Forget to Rate!

Good Luck
Dals123

I believe you can order the convergence board replacement for $299 from Part Store, here's a link to it for my 61" Hitachi, which should use the same board:
http://www.partstore.com/Part/Hitachi+Ltd/Hitachi/61SWX12B/Hitachi+Ltd/Hitachi/CS00452R/New.aspx

They offer a 30 day hassle-free return policy, so if for some reason it wouldn't work for you or isn't the right part, all you'd be out is the return shipping, as the initial shipping is free.
I'm in the process of having my board fixed w/the IC/resistor kit and hopefully I don't need a whole new board.  We'll see, but give this a shot, I don't see how you can lose...  -TD

what problem you are having?

T701 sometimes cause this problem, more info ctechnicians.com

No, all you need to do is notice all led and see which goes off first and which stay on. Then I can help you.

you have defective speakers! you can repair your speaker change the spider suspension wire! thats why your speaker is crackle sounds!

While the OP may no longer have this issue, I'll comment on anyone else that may come across this.
In addition to the suggestion of replacing the ICs above by Leadtech, the resistors also should be changed at the same time.  Quite often, even if a single IC or both are replaced and the resistors are not, the issue will re-appear.  There are a few locations selling a kit in the $50 range, so the difference for the additional resistors is minimal.
As for the sound issues, several owners of this and other Hitachi RPTVs in this line have had issues with their sound boards, which seem to be largely a defective product.  Even replacement of these have resulted in the problem re-occurring at a later time.  I would suggest using an external receiver and speakers as it may not be worth the time and money to repair this problem.  -TD