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
kingphil
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

This ProScan PS27123 is a great television, it worked great for years,
resolution and image quality are exceptional.

Unfortunately after 9 years of loyal service, it started acting up.

When I switch the set ON it starts normally, but after 15 to 20
minutes the CRT goes black but sound still works. If I switch it OFF
and wait +/- 1 hr, I can re-open it and it will do it again.

Any guidance to what I should look into will be greatly appreciated.
I want to keep this TV, but dont want to loose my shirt getting it to
a sefvice center.

Thanks to all,

  #2   Report Post  
Posted to sci.electronics.repair
JANA
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

From the age of the set, there are some components that have become thermo
sensitive. With proper troubleshooting an experienced TV tech should be able
to locate these parts, and replace them. The cost should not be too much.
The main cost would be the labour.

Take the set for an estimate to find out what they would charge to do the
work. This is something an end user would not be able to do himself.

--

JANA
_____


"kingphil" wrote in message
...
This ProScan PS27123 is a great television, it worked great for years,
resolution and image quality are exceptional.

Unfortunately after 9 years of loyal service, it started acting up.

When I switch the set ON it starts normally, but after 15 to 20
minutes the CRT goes black but sound still works. If I switch it OFF
and wait +/- 1 hr, I can re-open it and it will do it again.

Any guidance to what I should look into will be greatly appreciated.
I want to keep this TV, but dont want to loose my shirt getting it to
a sefvice center.

Thanks to all,


  #3   Report Post  
Posted to sci.electronics.repair
Stuart
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

What's the chassis number?
"kingphil" wrote in message
...
This ProScan PS27123 is a great television, it worked great for years,
resolution and image quality are exceptional.

Unfortunately after 9 years of loyal service, it started acting up.

When I switch the set ON it starts normally, but after 15 to 20
minutes the CRT goes black but sound still works. If I switch it OFF
and wait +/- 1 hr, I can re-open it and it will do it again.

Any guidance to what I should look into will be greatly appreciated.
I want to keep this TV, but dont want to loose my shirt getting it to
a sefvice center.

Thanks to all,



  #4   Report Post  
Posted to sci.electronics.repair
James Sweet
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

Stuart wrote:
What's the chassis number?
"kingphil" wrote in message
...

This ProScan PS27123 is a great television, it worked great for years,
resolution and image quality are exceptional.

Unfortunately after 9 years of loyal service, it started acting up.

When I switch the set ON it starts normally, but after 15 to 20
minutes the CRT goes black but sound still works. If I switch it OFF
and wait +/- 1 hr, I can re-open it and it will do it again.

Any guidance to what I should look into will be greatly appreciated.
I want to keep this TV, but dont want to loose my shirt getting it to
a sefvice center.

Thanks to all,






Is it sensitive to vibration? Try thumping it lightly on the side before
it acts up and see if that causes it to lose picture.
  #5   Report Post  
Posted to sci.electronics.repair
RonKZ650
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

It's a CTC169. I've had 2 in the last couple months that had this
problem and it was a bad HV transformer in both cases. Check your 140v
on the collector lead of the horiz output and see if it drops to zero
when the picture disappears. Pretty strange, I've also had intermittent
open flybacks on a couple of 187s recently.



  #6   Report Post  
Posted to sci.electronics.repair
 
Posts: n/a
Default ProScan PS27123 CRT goes dead after 15 to 20 minutes

I can tell you all... How ever you must be able to do... can you?

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
Straw Poll "Are you satisfied with hot water from a combi boiler" Dave Fawthrop UK diy 289 September 24th 05 11:17 PM
Dead true centerdrilling. Jim Sehr Metalworking 6 July 10th 04 04:06 PM
Dead Mobile Simon Electronics Repair 1 August 20th 03 05:24 PM
Dead Man's Tools Tom Watson Woodworking 35 July 20th 03 03:59 PM


All times are GMT +1. The time now is 07:30 AM.

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"