[TechAssist] Re: ctc169 power supply problem
- From: "pete" <tvtech@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>, <tv@xxxxxxxxxxxxxxx>
- Date: Sat, 23 Jul 2005 06:21:42 -0500
Im still stuck with this one I have checked all diodes and all caps int he
primary side of the power supply I hooked up a 13.5 volt source
disconnecting the diode cr4118 and still have 124 volts the pot varies the
voltage from 118 to 124 at max on the collector of horiz output. none of the
voltages went up on the secondary supply. I have fixed numerous ctc169 but
this one is a real dog. Any help will be greatly appreciated
Pete
Perdomo Tv Inc Since 1972
Miami.Fl
----- Original Message -----
From: "pete" <tvtech@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, July 15, 2005 6:48 PM
Subject: [TechAssist] ctc169 power supply problem
>I have been stumpt on this one. 120 volts on horiz output transistor in
>standby. cr4118 has been replaced I dont have 15 volts on diode I cannot
>measure it fluctuates c4145 1000 micro 50 volts have been also replaced
>raw bplus is 160v on the money I have replaced c102,c108.c104 u101, and
>disconnected the audio. Any help will be greatly appreciated
> Pete
>
> Perdomo Tv Inc Since 1972
> Miami.Fl
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