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#1
10-30-2022, 10:32 AM
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Sony KV 1929R excessive HV
first problem ever with this set, Found nothing obvious but really need a manual to go farther, is there a place to download these that isnt behind a paywall?
Just not worth spending $ on this set, its been a great TV but owes me nothing but willing to fix if I can Thanks Keith 
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#2
10-30-2022, 12:36 PM
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The only problems we had with these sets and excessive high voltage were caused by the STK583F voltage regulator/audio output IC. It's mounted to the back metal apron of the chassis. Caps C605 and C541 should also be checked. If you're not getting at least a 20 volt drop across R607, one of those parts is the problem.
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#3
10-30-2022, 04:00 PM
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This is helpful! THANKS! let me dig in, Ill post what I find. If I can get this going the next Sony is a KV 1515, never had the back off either but sat 10 years and now the picture is flashy with noise and no audio, I still havent peeped inside this one yet.
BTW, LOVE the porthole! I have the 1950 version of this. Keith
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#4
10-31-2022, 09:01 AM
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If the sets going into shut down also watch out for a bad
H-Stat assy. To test unhook the thin red wire to it. They crack & arc, sometimes they are not cracked. BTW On most old Sonys the HV wire is coax. There is a little spring on the CRT to make the center connection. Use caution removing it. 73 Zeno  LFOD !
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#5
10-31-2022, 08:25 PM
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changed the caps, still NG, 15V across R607 so Ill grab
a regulator off ebay and change that out. Thanks Keith
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#6
10-31-2022, 10:29 PM
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Quote:
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#7
11-08-2022, 08:42 PM
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got the new stk in, its a good one, things are better, HV is good, still some pincushion issues but not bad.... thanks everyone for the help.
Keith
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