Question about Hitachi 61SWX12B 61" Rear Projection Television

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Hitachi 61swx12b repair manule

Does anyone have the schematic in a soft copy .pdf and if so could you email me a copy thanks. I have been trying to get the service manule on CD from Hitachi for the last 2 months but it is alway on back order. If any one has a copy please email it.

Thanks

mtaschek@verizon.net

Posted by on

  • doitall1 Dec 26, 2007

    Well Im always having problems with this unit, but currently it's the sound is not working, but I do have sound at the low level RCA jacks in the back, so im thinking power amp or sound decoder board. but before I go poking around I would like to have a set of schematics. As im sure I will need them again later.



    In the past I had arcing between the crt's that was a nice one would pop about every 20 seconds and would loose sound and picture for about 5 to 10 seconds. then the sound card went out thats what they told me, then the convergence went out and 450.00 poorer. Im to the point that no more money will I spend on this unit. I have a EE back ground but my TV training was a few years ago, so it's fix it myself or junk it. NO more money.

    sorry got a little carried away there.



    any help you can give would be great, but Im still in need of a schematic repair cd or the files, packparts has had it on back order for the last 2 months.

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What problem you are having?

Posted on Dec 26, 2007

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Hi and welcome to FixYa, I am Kelly.

The parts list and the service manual are at this link:
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60ux54b hitachi schematic


It costs 9.00 but can be found here.
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1 Answer

Looks like I have extra blue and yellow lines abow the image on my Hitachi 61SWX12B 61 in , just started today ?


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.

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Nov 27, 2009 | Hitachi 61SWX12B 61" Rear Projection...

1 Answer

I have no sound on my hitachi 61swx12b


Howdy;
Try these items first: re-set TV and any type of BOX you have hooked to the TV. 2) Ensure all cables are secure. 3) Make sure that there is not a speaker switch on back of TV. 4) go into customer menu (audio) and make that speakers are turned on. 5)
Symptom: AUDIO MUTE OR HUM.
Cause: Remove ALL jumpers on bottom of SRS pwb.Add 1000mf@16v across CSH1 add 1000mf@16 across CSH4 add gnd wire 24ga from PSU1 conn pin 18 to IT02 pin 97.

Good Luck, Big Irish.

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hi i have a copy of this manual if you want to email me i will send you a copy that you can read
my email is pirncess7@hughes.net
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check out this link for the timer:
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Convergence on Hitachi 61swx12b


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

Oct 16, 2008 | Hitachi 61SWX12B 61" Rear Projection...

2 Answers

Convergence problems?


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

Jan 26, 2007 | Hitachi 61SWX12B 61" Rear Projection...

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