[TechAssist] Re: RCA CTC169 (PS27113) HOT Q4401 Shorts after about 30 seconds.
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 29 Nov 2005 23:10:00 -0500
123V is way too low. What was the B+ in run mode? Did you check the timing
on the HOT?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Dale Lubow" <harristv@xxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, November 29, 2005 11:05 PM
Subject: [TechAssist] RCA CTC169 (PS27113) HOT Q4401 Shorts after about 30
seconds.
> Unit came in with the HOT Q4401 shorted. I thought I would cover all my
> bases by replacing CR4401, C4401, CR4402, C4402, C4403, CR4118, C4145.
> Also
> soldered normal flyback pins, driver transformer pins, Pincushion
> transformer pins and any other questionable connections. Before I applied
> B+
> to the deflection circuit I made sure it wasn't running to high. Actually
> it
> was running 123 volts in standby which I think is a little low. I even
> measured the HV at 29KV before I connected the CRT. So I hooked everything
> up, pressed the power button and I had sound and picture. It looked like
> it
> was running normally but in about 30 seconds it shut down and shorted the
> HOT again. The transistor was even still cold to the touch. Does any one
> have any ideas on what might be going on?
> TIA,
> Dale
>
> --
> Dale A. Lubow CET
> Harris TV & Appliance
> 335 Lincoln Way
> Ames, IA 50010
> 515-232-1109 (Voice)
> 515-232-3356 (Fax)
> HarrisTV@xxxxxxxxx
>
> -----------------------------------------------------------------------------
> This Email List is accessible to the general public through search
> engines. Remove: http://www.tech-assist.org/remove.htm
> Set Vacation
> mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> Lost Password: http://www.tech-assist.org and select "Login Problems?".
> Email Archives: //www.freelists.org/archives/techassist/
>
>
-----------------------------------------------------------------------------
This Email List is accessible to the general public through search engines.
Remove: http://www.tech-assist.org/remove.htm
Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
