[TechAssist] Re: Sony CVM-1270 SCC469 going into shutdown
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 10 May 2005 02:35:33 +0000
The HV-focus block is a replacement in the set already. Tried to elminate by
removing the over voltage lead still acts the same.
Peter Oliver
Tucson Radio TV
From: <agower@xxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: Sony CVM-1270 SCC469 going into shutdown
Date: Mon, 9 May 2005 14:45:32 -0700
Hi Peter, if this has a high voltage block red with a adjustable control
about 1 1/2 " by 1 1/2 " about 8" long the lead from the fly goes in to it
and the lead from the block goes to the tube that is the device that is
failing.
If you look at the bottom of the red block there will be a distortion white
around the bottom lead, tv will play very intermittent
agower@xxxxxxxxxxxxx
Cordova TV
Adolph Gower
3415 Comet Court
Sacramento, Ca. 95827-2924
Phone: (916) 698-6565
Fax: (916) 363-8359
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: 2005Äê5ÔÂ8ÈÕ 8:48
Subject: [TechAssist] Sony CVM-1270 SCC469 going into shutdown
> Sony 12" commercial use only TV monitor from 1983
> CVM-1270
> SCC469A-A
>
> Set came in with a severe screeming power supply. 2 caps
> were
> bad on the upright SW mode supply. A 47uf and a 2.2uf changing them
> eliminated the screaming from the supply. Set will now run for a few min
> (3-5 min) then go to what appears to be high voltage shutdown ( I've
tried
> removing the overvoltage shutdown lead from the HV static convergace
block
> with out luck). Set usualy only starts on the second try (It was only
> starting with my meter across the 110 dc supply from the PS board
> (simulated
> the meter with a 1 meg). Also there is a resitor out to the sound first 2
> digits are 27 multiplier is out I was thinging it was r185 but don't have
> the set in front of me at the moment to verify. Don't have a schematic.
> Any
> ideas?
>
> Peter Oliver
> Tucson Radio TV
>
>
>
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