electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
samsung plasma no picture ?

 
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
john-morris
Guest





PostPosted: Tue Sep 08, 2009 2:05 pm    Post subject: samsung plasma no picture ? Reply with quote

just a quick question please.

i have a samsung 50q7hd plasma.

set has no picture panel seems dead?

i have noticed the green led 5800 is lit up on the ysus is that normal ?

anyone help.
Back to top
minnie



Joined: 18 Aug 2005
Posts: 2880
Location: Hell

PostPosted: Tue Sep 08, 2009 3:10 pm    Post subject: Reply with quote

You need to start by disconnecting board by board from the power supply to see if you can isolate which board it is. Check your VS and VA voltages with and with out the boards plugged into the power supply.
Back to top
View user's profile Send private message Send e-mail
john-morris
Guest





PostPosted: Tue Sep 08, 2009 3:44 pm    Post subject: Reply with quote

VS and VA voltages label on panel says va 63 & vs 207



with all boards connected

power supply ysus vs connector measures 207

power supply xsus vs connector measures 207

power supply bottom buffer va connector measures 63



with boards dissconnected


power supply ysus vs connector measures 216

power supply xsus vs connector measures 216

power supply bottom buffer va connector measures 63
Back to top
minnie



Joined: 18 Aug 2005
Posts: 2880
Location: Hell

PostPosted: Tue Sep 08, 2009 7:06 pm    Post subject: Reply with quote

You need to unplug the y sustain and see if the set will turn on, then disconnect the x sustain and try again so on so forth...
Back to top
View user's profile Send private message Send e-mail
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