electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
zenith tv dark 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
tek33



Joined: 09 Jan 2011
Posts: 4

PostPosted: Sun Jan 09, 2011 11:15 pm    Post subject: zenith tv dark picture Reply with quote

hi am workin a zenith tv model isz2045dt the picture is very dark
i bring the brightness full and i also bring up the bright on the flyback but pic is still dark.t found two badly caps close to the flyback i change them but still the same way.any ideas whould help

thanks
_________________
when things get hard the lord dont walk with me he carry me
Back to top
View user's profile Send private message
The_AntiRAM
Guest





PostPosted: Tue Jan 11, 2011 7:43 pm    Post subject: Reply with quote

Check each catode driving voltages with pattern test and oscilloscope.

Measurements have to respect values according to service manual diagrams.
Back to top
tek33



Joined: 09 Jan 2011
Posts: 4

PostPosted: Tue Jan 11, 2011 11:34 pm    Post subject: Reply with quote

i do not have an oscilloscope is ther any other thing i can do or checkh
_________________
when things get hard the lord dont walk with me he carry me
Back to top
View user's profile Send private message
minnie



Joined: 18 Aug 2005
Posts: 2880
Location: Hell

PostPosted: Wed Jan 12, 2011 12:45 am    Post subject: Reply with quote

Did you try turning up the screen control on the flyback?
Back to top
View user's profile Send private message Send e-mail
tek33



Joined: 09 Jan 2011
Posts: 4

PostPosted: Mon Jan 17, 2011 1:42 pm    Post subject: Reply with quote

yes but the pic is still very dark
_________________
when things get hard the lord dont walk with me he carry me
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