[TechAssist] Re: RCA tv model F27TF12
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, techassist@xxxxxxxxxxxxx
- Date: Fri, 30 Jul 2004 15:25:31 -0700
Discharging the Anode onto the G2 pin of the Picture,with the Focus
Pins Grounded and the Set OFF,removed the G2-to-G1 short inside the picture
tube.
(if it didn't I was going to go Al's route :-))
The Flyback is fine,216v G2 voltage was perfect.
Peggs
At 03:32 PM 7/29/04, peggs wrote:
>No picture,sound OK,High Voltage OK.
>G2 voltage is zero,until I remove the CRT PCB.Then it goes up to
>270v,but thats maximum.100v minimum.
>
>There is 200 ohms between the G2 pin and G1 pin of the CRT itself(with CRT
>PCB dsconnected).
>
>WinStips has a tip to Discharge the HV anode on to the G2 pin with the
>Focus pins Grounded.
>I've done this procedure in the past on the older RCA/GE
>units(when the G2 and Focus adjustments affect each other),with success
>every time.
>
>But I'm concerned about only having 270v on the G2 pin of the Socket with
>the CRT PCB disconnected.
>I removed the Ceramic Cap off the G2 line also,so I know I'm only
>getting 270v from the Fly.
>I have to give one of these 'well you've got this wrong,but you may have
>more wrong' estimates.
>I don't want to fix 'this' and have my estimate refused
>afterward.......before I know about 'more'.
>Hope that made sense :-))
>This is one of the Flat Screen type TV's............... May 2002
>Is 270v max ENOUGH G2 voltage ???
>Or do I have a Bad Flyback also ???
>Will 'zapping' the G2 pin be just a temporary fix for the Pix Tube ???
>
>Peggs
>Peggs' Electronics
>1519 West 2nd Street
>Owensboro,KY 42301
>270-926-4968
>fax 270-686-7399
>peggs@xxxxxxxxxxxxx
>
>
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