TV SONY KV32V15 FAILURE TWICE


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TV SONY KV32V15 FAILURE TWICE

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Poll: TV SONY KV32V15 FAILURE TWICE
	TV SONY KV32V15 POWER OFF
	TV SONY KV32V15 SAME PROBLEM TWICE
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denylson2002
Novice

Mar 30, 2008, 2:56 PM

Post #1 of 15 (268 views)
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TV SONY KV32V15 FAILURE TWICE	Can't Post

IN A SONY KV32V15, I CHANGED THE TRANSISTORS Q602, Q603 IN THE POWER SUPLY, THE HORIZONTAL TRANSISTOR Q591 , THEY WERE SHORT CIRCUITED, AND THE RESISTOR R607 WAS OPEN, THE TV SWITCHED ON OK FOR 2 HOURS AND THEN SWITCH OFF,. I CHANGED THE SAME PARTS AGAIN, AND THE TV SWITCHED ON FOR 4 HOURS AND THEN SWITCHED OFF AGAIN. THE SAME PARTS ARE DAMAGED FOR THE SECOND TIME
WHAT´S CAUSING THIS PROBLEM?
IS THERE ANY OTHER ELECTRONIC PART CAUSING THOSE ELEMENT GET SHORT CIRCUITED?
PLEASE , NEED HELP. BEFORE CHANGING THE PARTS AGAIN.

ernie
User

Mar 30, 2008, 6:54 PM

Post #2 of 15 (261 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

could be the tube,try running it with crt unplugged to see if it runs longer if it does its the tube

mel
Veteran

Mar 30, 2008, 7:27 PM

Post #3 of 15 (258 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

This set is particulary sensative to generic substitute parts (transistors/ICs). If you used non Sony parts, that could be your problem.

(This post was edited by mel on Mar 30, 2008, 7:29 PM)

Franky
User

Mar 30, 2008, 10:39 PM

Post #4 of 15 (249 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

Check also In D board, replace IC501=vertical o/p IC=Sony # 8-759-980-58=Generic # TDA8172

Franky
User

Mar 30, 2008, 10:44 PM

Post #5 of 15 (248 views)
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Re: [Franky] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

In Reply To

Check also In D board, replace IC501=vertical o/p IC=Sony # 8-759-980-58=Generic # TDA8172

also make sure you resolder the horizontal drive transformer connections.

denylson2002
Novice

Mar 31, 2008, 9:41 AM

Post #6 of 15 (238 views)
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Re: [Franky] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

I CHECKED AND REPLACED THE IC VERTICAL, RESOLDERED THE HORIZONTAL DRIVE TRANSFORMER CONNECTIONS THE SECOND TIME, AND I USED ONLY SONY PARTS. IT LASTED SWITCH ON 4 HOURS AND IT FAILURED AGAIN.

ernie
User

Mar 31, 2008, 12:01 PM

Post #7 of 15 (235 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

did you check the tube yet,i would suspect it is going to be the tube or transformer,the tube is known to blow these parts therefore i would check that first

Paulpablo
Enthusiast

Mar 31, 2008, 9:38 PM

Post #8 of 15 (225 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

Change I.C. 601,Q502,R607,C517!

denylson2002
Novice

Apr 4, 2008, 3:27 PM

Post #9 of 15 (200 views)
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Re: [Paulpablo] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

I REPLACED ALL THE DAMAGED PARTS, IN THE POWER SUPLY THE Q602, Q603 TRANSISTORS, AND THE HORIZONTAL Q591 , TOO.
I CHANGED THE IC601, Q502, R607, IC501 AND ALSO THE FLY BACK TRANSFORMER.
THEN I SWITCHED ON THE TV WITH THE CRT UNPLUGGED AND IT LASTED SWITCH ON JUST 20 MINUTES.THEN IT SWITCHED OFF .
I CHANGED THE R607, THE Q602, Q603 AND THE HORIZONTAL Q591, THOSE WERE DAMAGED FOR THE FOURTH TIME AGAIN.
I SWITCHED ON THE TV. BUT THIS IT WORKED ONLY FOR 5 MINUTES. NOW IT´S OFF AGAIN WITH THE SAME PARTS DAMAGED.
I WONDER WHAT´S HAPPENING.

mikemaiertv
Enthusiast

Apr 4, 2008, 5:31 PM

Post #10 of 15 (195 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

Have you resoldered the Horizontal drive transformer?, Not the flyback but the little square thing next to the HOT. when this unsolders it destroys all the componets you list, also check the capacitor that filters this

denylson2002
Novice

Apr 6, 2008, 11:21 PM

Post #11 of 15 (170 views)
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Re: [mikemaiertv] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

yes, i resolded the hdt transformer and checked the capacitors, and it failured for the fourth time. I EVEN CHECKED ALL THE OTHERS COMPONENTS AND RESOLDED THEM. PLEASE I NEED ANY OTHER SUGESTION.

RetiredTVguy2
User

Apr 10, 2008, 1:11 PM

Post #12 of 15 (144 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

In a similar set 32S10, if you dont replace the 3 VDR's 601/602/603 one black & two green, those same parts will keep shorting, see if you have those VDR's in there, if so replace! Also check if there is a 6.8 ohm resistor near one of those VDR's, in the 32S10 it's R644. replace even if it test's good. Im supprised no one else knew this!!
[retired]

denylson2002
Novice

Apr 19, 2008, 4:24 PM

Post #13 of 15 (109 views)
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Re: [RetiredTVguy2] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

i changed the parts , as retiredtvguy said, i switched on the tv, and everything was ok for 6 minutes, then it switched off again.
the tv lasted switched on only 6 minutes and the the same parts damaged again, for the 5 times i think.

RetiredTVguy2
User

Apr 29, 2008, 8:03 AM

Post #14 of 15 (68 views)
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Re: [denylson2002] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

One tough cookie there. Start testing all the doides & resisters & caps. In the power sup and the horz by the HDT. Sometimes those small caps go bad. Are there any symptoms befor the set goes off? Pic shrink?

denylson2002
Novice

May 1, 2008, 8:41 AM

Post #15 of 15 (40 views)
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Re: [RetiredTVguy2] TV SONY KV32V15 FAILURE TWICE [In reply to]	Can't Post

NO SIGN AT ALL, THE TV JUST GOES OFF. BUT, ONLY, THE FIRST TIME THE TV SET DID NOT RESPONDE TO THE REMOTE CONTROL AND THE PUSH BOTTOM FOR VOLUME UP OR DOWN AND CHANGING THE CHANNELS, THEN IT GOT OFF .

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