[QuadList] Help with AVR 3s

[C. Park Seward]

Eric

Where are you located? I know of a great power supply repairman in Orange County. Ken and Al are around San Fran. Others around the country. 

Best,
Park

Sent from my iPhone
818-535-2747 cell
(541) 476-6657 hm
2" and 1" video transfers

On Oct 31, 2012, at 10:54 AM, "Eric Address att" <eric-address at att.net> wrote:

> 
> I’ve recently joined the QuadVideoTapeGroup and need some help with AVR 3s I just purchased:
>  
> The machines, apparently, came from Editel LA (LA1142 on one VTR) originally.
>  
> Both are System 1376000-010, no manuals included
> s/n 4370132 & 4570144, system test date 2-24-77
>  
> Attempting to get them running.
>  
> I’m having power supply problems initially – only one of the two power supply regulators is mostly functional – using the same board in both VTRs, one is missing +24 and the other is missing +12; both are missing +5 DTBC
>  
> One of the VTRs is missing a vacuum (venturi) on air inlet assembly - AIR VAC ?VRH-093 and the muffler bottle – need specs to order a replacement.
>  
> Power Supply Regulator – both good and bad PCBs:
> Assy 1376371 [02]
> A/W issue LTR E F
> Schematic 1376373
>  
> Power Supplies are from WEI Corp, Santa Monica, CA
> 1376547-03 Rev D and 1376547-03
> 1376546-01 Rev D and 1376546-01 Rev A WEI
>  
> Head & Capstan MDA – both VTRs:
> Assy 1376462-02
> A/W ISS LTR F
> Schematic 1376464 A & B
>  
> Schematics and any help would be appreciated.
>  
> Thank you,
> Eric Address
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> 
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