electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
TV SONY KV25FX30 PROBLEM

 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs
View previous topic :: View next topic  
Author Message
KYRLAG
Guest





PostPosted: Wed Jan 25, 2006 11:45 pm    Post subject: TV SONY KV25FX30 PROBLEM Reply with quote

MY PROBLEM WAS THE STK2515 TRANZISTOR FOR HORIZONTAL WAS BURND AND ALSO THE HORIZONTAL TRASFORMER. I CHANGE BOTH THE TV START WORK. THE HIGH VOLTAGE IS OK BUT THERE IS NO ADJST AT BRIGHTNES IF YOU LOOK CAREFULY YOU WILL SEE THE PICTURE IN THE DARK SCREEN. THE SOUND IS OK.
Back to top
hmasri69
Guest





PostPosted: Thu Jan 26, 2006 9:53 pm    Post subject: i solved for y Reply with quote

i was have the same problem
there is 2diod & resistanc all(smd)burnd near the control ic
i dont have the no now............
Back to top
Joentje



Joined: 23 Jan 2006
Posts: 11

PostPosted: Thu Feb 02, 2006 7:23 am    Post subject: Reply with quote

Check/replace these components in the ABL-line, 2x SMD-zenerdiodes 6,8V, 1x SMD-diode 1N4148 and 1x SMD-resistor 220 OHM.

If the problem isn't solved, replace the processor (SMD).
In 99% of the cases after a defective LOT the processor is also defective.
Back to top
View user's profile Send private message
Joentje



Joined: 23 Jan 2006
Posts: 11

PostPosted: Thu Feb 02, 2006 7:25 am    Post subject: Reply with quote

I guess your TXT and OSD are OK.
Back to top
View user's profile Send private message
Baeteman
Guest





PostPosted: Mon Feb 06, 2006 5:13 am    Post subject: Reply with quote

Hi there,

Have you adjusted the Vg2 pot on the new flyback trafo ?
They are always deliverd with this one fully CCW.

Kind regards.
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs All times are GMT
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Електроника София - Service Manuals Free Download - Prikachi - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Search - Jabse.InK  - Pulsator

Connector Pinout Forum - Новини - SnimkiOt.com - безплатен DNS - Whois разузнаване - Poblizo.com : пътешествия