electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
tv problems

 
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
robpavia



Joined: 16 Nov 2005
Posts: 3

PostPosted: Wed Nov 16, 2005 12:11 pm    Post subject: tv problems Reply with quote

i have a seleco 26" and when i switch it on with the remote there a noise like a spark in pulses of a second and the picture dousnt come on. thanks for any help
Back to top
View user's profile Send private message
Guest






PostPosted: Wed Nov 16, 2005 12:32 pm    Post subject: Reply with quote

Place the oscilloscope probe near the IHVT and monitor the pulses. Are they normal when it try's to start?
Back to top
robpavia



Joined: 16 Nov 2005
Posts: 3

PostPosted: Wed Nov 16, 2005 12:40 pm    Post subject: Reply with quote

yes when it try to start ,but when i try to switch it on from the switch and keeping the remote pressed it comes normal
Back to top
View user's profile Send private message
Guest






PostPosted: Wed Nov 16, 2005 3:16 pm    Post subject: Reply with quote

If the IHVT waveform is normal, then remove the crt board from the crt. See if it still shuts down. If it doesn't then you might have a crt problem (abl, etc.)
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


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