[TechAssist] Re: RCA CTC195 Standby supplies high; shutdown
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 30 Sep 2003 21:57:49 -0400
Try checking the power supply with a light bulb to see if it's regulating. I
think the flyback is a high failure item on these. Did you ring it? I have a
training manual I can send you the power supply section.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "John @ Myers TV" <myerstv@xxxxxxxx>
To: "Tech-assist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, September 30, 2003 1:38 PM
Subject: [TechAssist] RCA CTC195 Standby supplies high; shutdown
> Hi,
>
> I thibnk this is a lightning strike. Here's the info
>
> M# P52955
> Chassis # PTK195W1B
>
> Problem: High voltage comes up, then down after about 1-2 seconds.
>
> Main power supply measures 168 - 175V in standby mode. VCC on the PWM
> controller chip is 12 V in standby (should be 10.2V ). Voltage at FB opin
of
> the controller is right on the money; 0.4V.
>
> It looks like a problem in the feedback path (CR14102, C14147, etc.).
> Everything checks OK.
>
> Opinions?
>
> John Myers
> Myers TV Service Co. Since 1984
> Alliance, OH
> Voice: 330-821-6545
> myerstv@xxxxxxxx
> http://members.ebay.com/aboutme/tvguy07/
> http://members.ebay.com/aboutme/threads_r_us/
>
>
>
>
>
>
>
****************************************************************************
*
> Classifieds! Buy or Sell!
> http://sell.tech-assist.org
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
>
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
