Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 2
Default Small NTSC Monochrome display problem

I have a small (4.5") monochrome CRT in a piece of process monitoring
equipment that is not working. No video display. HV seems to be good,
filament is on. Even if I turn the brt and cont pots I get no raster.
Thinking it might be the video amp section?

Going to try and contact the company tomorrow. It was made by Wintron
who seems to have been absorbed by Video Display Corp. I am not
expecting much.

If anyone has any ideas I am all ears.

-Jerry
  #2   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 4
Default Small NTSC Monochrome display problem

Are you sure the signal is getting to it.?Is it a 9-pin ?
  #3   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 5
Default Small NTSC Monochrome display problem

On Aug 28, 7:51*am, Joe Smith wrote:
Are you sure the signal is getting to it.?Is it a 9-pin ?


Yeah, it had a signal. Scope showed it. I eventually figured out the
CRT itself was bad. Tried hooking external HV to the anode cap and
nothing. Found another unit on ebay and with a good CRT and tried it
with the other board and verified the CRT was bad.
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
source for LCD NTSC small monitor in a camcorder??? [email protected] Electronics Repair 4 July 16th 07 02:52 AM
LCD Display Almost Monochrome [email protected] Electronics Repair 2 August 6th 06 01:03 AM
Monochrome Fold over problem? SomeBody Electronics Repair 6 March 25th 06 05:24 PM
NTSC-compatible video signal circuit - ntsc.pdf (0/1) Rico Rivera Electronics 1 April 13th 04 07:57 PM
FA: Sharp 320 x 240 backlight monochrome touch screen LCD display LM32015T snooper Electronics Repair 0 October 24th 03 04:28 AM


All times are GMT +1. The time now is 08:48 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"