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Sony Black Screen with Sound.

 
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kdvu



Joined: 10 Apr 2006
Posts: 1

PostPosted: Mon Apr 10, 2006 12:42 am    Post subject: Sony Black Screen with Sound. Reply with quote

I have a Sony KV-27S26. The problem is when I turned it on, the picture and sound is ok for about 1 minute then the screen went black with sound is ok. When I turned it off and on again, everything was ok for about a minute then black again. I've read many posts that have similiar problem. But failed to trace it to the IC that cause this problem. Does anyone have a suggestion where to look for the problem? TIA.
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mrhenrybell
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PostPosted: Wed Apr 19, 2006 6:05 am    Post subject: Sony pdf Service Manuals & Troubleshooting Center Reply with quote

http://fletchersite.com/sony
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Flux_Capacitor
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PostPosted: Tue May 08, 2007 5:21 am    Post subject: Same issue - looking for manual Reply with quote

I have the same issue with this television, the Sony KV27S26.

Any advice would be great such as service bulletins.


Thanks.
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cory
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PostPosted: Tue May 08, 2007 10:54 pm    Post subject: Reply with quote

try resoldering vertical ic and horizontal drive transformer.
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Tim Ski
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PostPosted: Sun Jul 08, 2007 8:06 pm    Post subject: sony TV Reply with quote

This is a common issue with Sony TV's witch is IK blanking.
Cause is normally a weak CRT. If you turn the screen control up and picture returnes with retrace lines turn down control untill retrace just disapears. If picture still goes blank Your CRT is bad. That is if all
common voltages are present, IE 200V Heater HV. You can Scope the IK return line on the crt board to see which gun is low. A CRT rejuvinater may help, but be causious more damage could result.

Tim
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Sun Jul 08, 2007 10:03 pm    Post subject: Reply with quote

Resolder vertical IC TDA8172.
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oslec



Joined: 09 Jul 2007
Posts: 2

PostPosted: Mon Jul 09, 2007 5:28 am    Post subject: service mode Reply with quote

service mode for panasonic & sharp tv tnx
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