electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
L04.1U.AA Dead

 
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
pensacol



Joined: 16 Dec 2006
Posts: 2

PostPosted: Fri Jul 03, 2009 2:51 am    Post subject: L04.1U.AA Dead Reply with quote

My 32" philips went through a power surge last week. Now here I am trying to repair it. Replaced bad IC7531 (Drain shorted to ground), replaced fusible resistor 3532, 3513, and 3514, replaced dad 7512 mosfet. Manual says IC7531 charges capacitor c2532 and starts to switch at 9.5 volts. Voltage won't go above 4.89vdc at c2532, so the IC won't start to switch. I have 168vdc on pin 14. I can't for the life of me figure out why I can't get the required 9.5v to start the IC. Can somebody help me please! I miss my tv.
Back to top
View user's profile Send private message
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


eServiceInfo on FB - Service Manuals Free Download - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Service Manual Search - Jabse.InK  - onTap.bg

SnimkiOt.com - Poblizo.com : пътешествия