[TechAssist] Re: FIX RCA combo T19060 shuts off when going f...
- From: "mike wilson" <mykeelike@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 11 Jun 2003 18:39:02 +0000
RCA combo T19060GY . Power shuts off if stop button is pressed when vcr is
in FF. Also pix flickers when tape is loading. Caused by bad load motor.
Old motor drew 540ma, new motor draws 22ma on bench supply 6v.
Fix seems obvious now but without a schematic I became fixated on a
mysterious power supply problem. I thought about the motor but had never
seen a motor cause these symptoms before.
Flickering pix during load of the old pan vcr's was caused by bad caps in
the power supply.
Thanks, Dominic.
Mike
Mike Wilson
A.M. Stereo & Video
Seattle WA.
>From: MDileo0000@xxxxxxx
>Reply-To: techassist@xxxxxxxxxxxxx
>To: techassist@xxxxxxxxxxxxx
>Subject: [TechAssist] Re: [TechAssist]FIX? RCA combo T19060 shuts off when
>going f...
>Date: Mon, 9 Jun 2003 21:11:24 EDT
>
> More likely you have a bad loading motor that is drawing too much
>current, a
>common failure. There should not be any flicker. The motor will continue to
>draw more current. It will come back or the customer will never come back.
>
>Dominic DiLeo
>Atlantic TV
>Freeport, Maine
>_______________________________________________________
><<<< Scoped the 17v source( marked on the board) and it had a 2v ripple
>when
>load
>motor was going checked CP52 1000/ 25v located on sweep pcb. Cap measured
>1032Uf and ESr was good . Replaced the cap with a 2200uF
>Set no longer shuts off when going from FF to stop. Still see slight
>flicker
>in pix when loading motor goes but I'm sending it out. With out a schematic
>it's hard to locate the exact fault on this. I checked a lot of things on
>this but this is a secondary problem to the one the customer brought it in
>for so I'm not going to feel too bad about the fix.
>
>Mike
>
>
>Mike Wilson
>A.M. Stereo & Video
>Seattle WA. >>>>>>>>
>
>
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