[TechAssist] Re: Mitsubishi CS-40505 arc/snapping... 40" DTV!
- From: "Ron Miller d.b.a. Country TV" <rlmbkm@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 22 Jun 2005 13:02:31 -0500
Measure the focus voltages with HV probe, should be around 4-6kv.hth
Country TV
Ron Miller
Inez, TX. 77968
----- Original Message -----
From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 22, 2005 12:06 PM
Subject: [TechAssist] Re: Mitsubishi CS-40505 arc/snapping... 40" DTV!
>I removed the back, turned it on. The snap was from the CRT neck area. I
> unplugged the CRT board and hung it loose.Powered set on and looked at
> the board...the arc/snap showed it was going from one focus pin to the
> other across the top of the socket plug holes. This CRT socket has two
> seperate pins together I assume are focus. It's these. Is this a socket
> issue, do I open it and scrape it, Think it's excessive focus voltage
> from a bad fly?
> If socket is bad, wonder if I can pack with silicon RTV...
> Phil Bader
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
> Randall Torda wrote:
>
>>Check the CRT socket spark gap for carbon tracks or corrosion.
>>The socket is a special size and is NLA from Mitsubishi.
>>The bad socket will usually have focus problems, startup or
>>shutdown problems. Had one about a month ago and that
>>monster went to the landfill because of NLA parts.
>>
>>Autolectrics
>>Randall Torda
>>284 Makua Street
>>Wailuku, HI 96793
>>
>>On Wed, 22 Jun 2005 09:33:34 -0400 Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
>>writes:
>>
>>
>>>This set is 9 years old.I didn't know Mits made a 40 inch direct view
>>>
>>>TV! Or anyone back then.
>>>Customer said it started out getting as bit blurry (focus poor) then
>>>a
>>>series of HV arc- snaps getting worse as time went on.
>>>Anyone work on these behemouths?
>>>Phil Bader
>>>
>>>--
>>>
>>>Philip Bader
>>>Jan Phyl TV Inc. (estab. 1976)
>>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>>Fax (863) 299-8821
>>>email: tjanphyl@xxxxxxxxxxxxxxx
>>>
>>>
>>>
>>>
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