Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Solid State CRT Televisions

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #46  
Old 06-16-2012, 07:09 PM
radiotvnut's Avatar
radiotvnut radiotvnut is offline
VideoKarma Member
 
Join Date: Jul 2007
Location: Meridian, MS
Posts: 6,018
If the 4-lead safety cap opens and the internal interlock does not break, the HV will skyrocket and literally blow the neck off the CRT.
Reply With Quote
  #47  
Old 06-16-2012, 08:07 PM
holmesuser01's Avatar
holmesuser01 holmesuser01 is offline
VideoKarma Member
 
Join Date: Jul 2005
Location: Asheville NC
Posts: 1,731
I lost a beautiful Zenith console this way once. I turned it on to see what was up, and heard this SNAP and a rush of air. The neck snapped at the bell, and the yoke and convergence parts all let go and fell.

Your no color and no sound issues could be what I said before. Have you got a meter? Schematic? Schematic will help you.
Reply With Quote
  #48  
Old 06-16-2012, 10:40 PM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
I have a meter. No schematic. I have not been able to find any bad resistors. Have replaced most capacitors. I have not replaced the ones on the main board.
Reply With Quote
  #49  
Old 06-28-2012, 06:11 AM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
Any ideas will be appreciated.
Reply With Quote
  #50  
Old 06-28-2012, 06:46 AM
holmesuser01's Avatar
holmesuser01 holmesuser01 is offline
VideoKarma Member
 
Join Date: Jul 2005
Location: Asheville NC
Posts: 1,731
Get a schematic and use that meter that you have.
Reply With Quote
Audiokarma
  #51  
Old 08-15-2012, 06:37 PM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
I think it is a .68 resistor on the retrace board or a .69. Hard to find. It is one watt, brown, bands are blue, white, silver and silver.
Reply With Quote
  #52  
Old 09-13-2012, 03:45 PM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
Was not resistor and since i have no sound i think it could be the flyback. Does anyone have a flyback for the T815?
Reply With Quote
  #53  
Old 09-13-2012, 05:04 PM
holmesuser01's Avatar
holmesuser01 holmesuser01 is offline
VideoKarma Member
 
Join Date: Jul 2005
Location: Asheville NC
Posts: 1,731
I've never replaced a flyback on the T815.
Reply With Quote
  #54  
Old 09-14-2012, 12:25 AM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
How do you fix no sound? Also has no color but sometimes flashes in for a second.
Reply With Quote
  #55  
Old 09-14-2012, 08:05 AM
holmesuser01's Avatar
holmesuser01 holmesuser01 is offline
VideoKarma Member
 
Join Date: Jul 2005
Location: Asheville NC
Posts: 1,731
GET THE SCHEMATIC if you cant figure out whats what. The color is something else.

Didnt you have a picture at some point? Then you soldered up the grounds? Then no picture? Recheck your work!!!

Last edited by holmesuser01; 09-14-2012 at 08:11 AM.
Reply With Quote
Audiokarma
  #56  
Old 09-14-2012, 08:55 AM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
I still have a picture, once i got it never lost it. It is just black and white. Pulls a little to the right.
Reply With Quote
  #57  
Old 10-01-2012, 01:31 PM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
Anyone have a flyback for the T815 chassis?
Reply With Quote
  #58  
Old 10-04-2012, 11:37 PM
rpm1200's Avatar
rpm1200 rpm1200 is offline
VideoKarma Member
 
Join Date: Jan 2006
Location: Rochester, NY
Posts: 247
You should really get a schematic and measure the voltages around the sound and color sections before replacing the flyback. Have you tried SAMS 1860-1? It is available on samswebsite.com for $22, instant download (I have no affiliation with them).

https://www.samswebsite.com/en/photo.../samsid/1860_1
Reply With Quote
  #59  
Old 10-05-2012, 05:42 PM
Firebird's Avatar
Firebird Firebird is offline
VideoKarma Member
 
Join Date: May 2010
Posts: 212
Does anyone have experience working on these sets?
Reply With Quote
  #60  
Old 10-09-2012, 05:26 PM
holmesuser01's Avatar
holmesuser01 holmesuser01 is offline
VideoKarma Member
 
Join Date: Jul 2005
Location: Asheville NC
Posts: 1,731
I did authorized service on Magnavox TV's and worked on plenty of 815 chassis. It was a good design. Once I soldered most of them up, they rarely came back for service again. Get the schematic and take readings.
Reply With Quote
Audiokarma
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:24 AM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.