[TechAssist] Re: Need Help With Magnavox Television
- From: "techforce" <techforce@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 28 Jan 2002 20:01:45 -0500
You can get the same Arcing effect if someone dont install the Anode CAP
correctly. I saw this once before on a Monitor
worked on by an non-Tech. All he Did was clip one side of the clip under the
hole on the CRT and it was loose and making bad contact.
You say you worked on monitors before but not sure if you already know -
That the Anode Cap should clip in place and be held by its own pressure
after you release the pressure on its clasping tabs.
PS: Its also a good Idea to ground the CRT before you try removing an anode
cap. If you dont know that procedure, ask here again and I will let you know
the procedure so you dont zap youself back to the future...:o)
Steve
Technotronic Dimensions, NY (USA)
www.100megspop2.com/techforce
1-877-817-9885
----- Original Message -----
From: "C&W Electronics" <c_w_electronics@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 28, 2002 7:48 PM
Subject: [TechAssist] Re: Need Help With Magnavox Television
>
> Terry,
> From your symptoms, sounds like a shorted crt. Look in the neck of the
tube,
> when it's arching on the anode, see if you have any blue arching or
sparking
> in the neck. If so, the crt is shorted. Also disconnect the anode lead and
> put the lead in a styrofoam cup or glass container and locate it away from
> the chassis, to prevent arching to the chassis. This may keep it from
> shuting down(clicking). Then you may be able to turn the sound down and
> check out the rest of the set.
>
> Good hunting.
> Paul W
>
>
> From: t-warren@xxxxxxxx
> Reply-To: techassist@xxxxxxxxxxxxx
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Need Help With Magnavox Television
> Date: Sat, 26 Jan 2002 20:48:34 -0700
>
>
> This is my 2nd time posting but, since you guys helped me out a lot with
> a Philco TV I'm working on, I figured I'd give this one a try...
>
> Here's what I'm working on now:
>
> Manufacturer: Magnavox
> Manufacture Date: January 1983
> Model #: RC5266PE02 (floor console model)
> Serial #: 24379034
> Chassis #: 25C109-BA
>
> I had bought this TV (for $15) to strip for parts but, even the vertical
> deflection parts seem to be different from what's in my Philco so, I
> decided to see if there was any way to get this Magnavox going instead...
> It was an impulse buy but I figured "What the heck!"...
>
> It may, however, be a lost cause...
>
> Here are the symptoms:
>
> When the power cord is plugged in, the audio kicks in at full volume and
> a rather impressive lightning storm shoots out from under the anode
> cap... After unplugging the speakers to save my hearing, I tried again -
> after the initial lightning storm, the high-voltage shuts down and starts
> "clicking"... The tube doesn't power up and the front panel controls are
> nonresponsive... This is as far as I've gotten with the diagnosis...
>
> Initial observation: Someone has tried to work on this before but I don't
> think anything was replaced - I can't find any components on the boards
> that look visibly damaged and all the wiring harnesses appear to be
> plugged in correctly...
>
> I'm not actually a TV technician but I am an electromechanical technician
> so, I'm not new to the electronics field and, having refurbished computer
> monitors, I am well aware of the high-voltage danger...
>
> If anyone can point me in the right direction as to where to look for an
> answer, it would be greatly appreciated...
>
> Thank you for your time...
>
> Terry Warren
> t-warren@xxxxxxxx
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