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old tv after lightning storm

 
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XXkeck63628XX
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PostPosted: Mon Oct 15, 2007 5:24 pm    Post subject: old tv after lightning storm Reply with quote

i have a 1994 sony Kv27s15 crt that whent dead after a lighning stom anyone have any ideas on which part would have whent out
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minnie



Joined: 18 Aug 2005
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Location: Hell

PostPosted: Mon Oct 15, 2007 9:14 pm    Post subject: Reply with quote

Is R607 open? It's a white resistor by Q601 and Q602.
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PostPosted: Tue Oct 16, 2007 12:30 am    Post subject: Re: old tv after lightning storm Reply with quote

XXkeck63628XX wrote:
i have a 1994 sony Kv27s15 crt that whent dead after a lighning stom anyone have any ideas on which part would have whent out


Is R607 open? It's a white resistor by Q601 and Q602.

You also should look up; d603,d606,d607,d608,r616,r617
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torbjorn



Joined: 07 Jun 2007
Posts: 370
Location: Sweden

PostPosted: Tue Oct 16, 2007 12:20 pm    Post subject: Reply with quote

When beginning troubleshooting a tv that has become damaged by lightning, it is important to know which way the surge voltage entered the set. Was it via the electrical mains, via the antenna, or via auxiliary equipment connected to the tv?
A good clue can be to look for other lightning damage in the same house.
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XXkeck63628XX
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PostPosted: Mon Oct 22, 2007 5:41 pm    Post subject: Reply with quote

r607 was open thank you, but would you happen to know the resistants of r607 for the sony kv27s15
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PostPosted: Mon Oct 22, 2007 10:44 pm    Post subject: Reply with quote

R607 is .1ohm
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Oct 22, 2007 11:11 pm    Post subject: Reply with quote

XXkeck63628XX wrote:
r607 was open thank you, but would you happen to know the resistants of r607 for the sony kv27s15


R607 is a start. Q601 and Q607 2SC4834 need to be replaced. The horizontal out put needs to be checked for a short, then you need to solder up the horizontal drive transformer. Then your set will be fixed.
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