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Sony projo KP-46WT520 flashing (9 blinks)    
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_Gabe
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PostPosted: Fri Nov 07, 2008 12:20 pm    Post subject: Sony projo KP-46WT520 flashing (9 blinks) Reply with quote

Sony projo KP-46WT520 flashing (9 blinks) pauses and flashing again.

I don't know exactly where to look , everything I check seems good.

Any bad history on this model ??
Google

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_Gary
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PostPosted: Fri Nov 07, 2008 12:21 pm    Post subject: Reply with quote

bad G board A1054157A
_Larry
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PostPosted: Fri Nov 07, 2008 12:22 pm    Post subject: Reply with quote

Replace D6301 on "G" board and d6116, d6117 i use 1n4148 for the little smt diodes, d6301 nte116 should suffice
_Gabe
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PostPosted: Fri Nov 07, 2008 12:22 pm    Post subject: Reply with quote

Larry and Gary , I've check those 3 diodes that you talk about , they are good !!!

Only thing I've found so far , is on the AM board/module , many surface mount electrolytics caps with very high ESR , I've just finished changing them , about 15 of them , tv still dead , and flashes 9 times.
_Gary
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PostPosted: Fri Nov 07, 2008 12:23 pm    Post subject: Reply with quote

the first time I came across this problem I did a web
search and found all kinds of forums telling diy'ers how
to fix their own sets

I tried changing the parts suggested but could'nt get
the set running

replaced the board and fixed the set

it is about $40 exchange from most suppliers - another
reason I didn't want to spend a lot of time trying to fix it

Larry is correct - the diodes listed are the ones that are
suggested by all the help forums, and it sounds like he's
been having success just replacing them
- I've just been replacing the boards for the above reason

9 blinks is a ZCD error code (zero crossing detection)
Google

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_Dave
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PostPosted: Fri Nov 07, 2008 12:24 pm    Post subject: Reply with quote

Where did you get your G board? I can seem to find one for sale. Thanks,
Dave
_Gary
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PostPosted: Fri Nov 07, 2008 12:24 pm    Post subject: Reply with quote

tritonicsinc.com
_Gabe
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PostPosted: Tue Nov 11, 2008 11:42 am    Post subject: Fixed Reply with quote

Ok , tv is fixed now , and running good.

I changed the 3 diodes suggested (must have been leaking) , change about 15 caps in AM module , and power on , ok.
nice pic.

Thanks to all for your inputs
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