[TA-A] Re: Pan AG-1960 and Mitsu VS-5061

You don't need a schematic. Yank the module. There are two headers on the 
main pcb. The header you will be working on is the smaller one, pins 1-11 
usually labeled VP

You need (2) 22uf/50v bi-polar caps

From the print side of the chassis, jumper pin 5 to 11, jumper pin 7 to 9 
with the caps. Chroma and Y are now looped. Do not reinstall the module

PIP no longer works. If your customer wants the PIP function, then you must 
purchase a new module or a rebuilt if available.

You can repair yourself. Remove all leaky surface mount caps from that 
module, clean off the electrolyte, and install new caps

A bad module will give you symptoms such as no chroma, overload (AGC,) vert. 
bounce, no vert. sync, dead, etc.




----- Original Message ----- 
From: "Dr. Mark" <meinn99@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 05, 2008 1:21 AM
Subject: [TA-A] Re: Pan AG-1960 and Mitsu VS-5061


> No.
>
>  We will need to contact Mitsu to pick up a service manual for this set.
>
>  We were suspicious about Cap C2CO off IC201 and Cap C216 off IC202.
>
>  Thx,
>
>  Mark
> Telerama <TeleramaTV@xxxxxxxxxxx> wrote:
>  Do you know were to jump the Y and Chroma lines?
>
>
> ----- Original Message ----- 
> From: "Dr. Mark"
> To:
> Sent: Tuesday, February 05, 2008 1:07 AM
> Subject: [TA-A] Pan AG-1960 and Mitsu VS-5061
>
>
>>
>> The Pan and the Mitsu belong to two different customers. Both units are
>> not worth much these days, but some folks like their old gear.
>>
>> Thanks for the tips.
>>
>> Mark
>>
>> MC Mobile
>>
>>
>> Telerama wrote:
>> Holy crap, buy a new VCR!
>>
>> Switch mode regulator shorted, and caps bad in supply, check Zeners in
>> supply as well.
>>
>> Mitsu projo: Caps bad on PIP module, remove module jump Y and Chroma
>> lines.
>> Sweat pins on Vert output IC.
>>
>> I am new here,
>>
>> Isn't this forum limited to technicians?
>>
>> Is it a gp forum?
>>
>>
>> ----- Original Message ----- 
>> From: "Dr. Mark"
>> To:
>> Sent: Tuesday, February 05, 2008 12:49 AM
>> Subject: [TA-A] Re: RCA will not power up
>>
>>
>>> Dear Techassist crew,
>>>
>>> 1. We were looking for a schematic and possibly a block diagram for the
>>> power supply in a Panasonic AG-1960 VCR. The power supply is popping the
>>> 2A, 250 V fuse closest to the AC in, and this will occur when the power
>>> supply is unplugged from the rest of the unit. There is another fuse in
>>> the power supply that remains intact. Does anyone have information on
>>> this
>>> power supply?
>>>
>>> 2. Also, we were looking for schematics and block diagrams for a
>>> Misubishi VS-5061 projection TV. The unit has a vertical stability
>>> problem
>>> until it is warmed up for 30 minutes, then OK. We wanted to investigate 
>>> a
>>> few caps around IC201, IC202, and IC203. Does anyone have schematics and
>>> diagrams for this unit?
>>>
>>> Any tips are appreciated.
>>>
>>> Thanks,
>>>
>>> Mark
>>>
>>> MC Mobile
>>> Telerama wrote:
>>> Terry,
>>> First, this chassis has no relay "click" when plugged in. The 195 will
>>> chirp
>>> when first plugged in. If you hear that chirp, the supply is running.
>>>
>>> There are so many things that can kill a set. It is true that this
>>> chassis
>>> has had bad flybacks. There are two flybacks for the 195. The 239111
>>> version
>>> is the one that failed. We do work for three shops, I have NEVER changed
>>> the
>>> other type (250694), always the 239111 one would fail.
>>>
>>> If there is no short on the B+ line, and there is nothing wrong with
>>> IC2bus,
>>> and all standbys are ready, the set will fire, or attempt to fire even
>>> with
>>> a bad flyback. The set will shut down with a bad primary or secondary
>>> winding in the flyback.
>>>
>>> About 30% of the 239111's I have changed had no primary or secondary
>>> short.
>>> There was a breach in the housing of the transformer. In other words it
>>> would arc, and in most cases short the HOT.
>>>
>>> If you are not skilled, it can be very difficult locating a corrupted
>>> data
>>> or clock line on the bus. I have had on several occasions with the 195
>>> and
>>> 197, surface mount caps that were loading the clock lines.
>>>
>>> You need a schematic, DMM, O-scope (in some instances) and of course,
>>> some
>>> level of skill and knowledge.
>>>
>>> Tony,
>>> Telerama Television
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "Conley, Terry W (Hazard)"
>>> To:
>>> Sent: Monday, February 04, 2008 2:39 PM
>>> Subject: [TA-A] RCA will not power up
>>>
>>>
>>>>I would really appreciate some advice on an RCA Model P52960 rear
>>>> projection TV. It has chassis PTK195Y06B. This television was donated
>>>> to my church youth group and it will not power up and I hear no relay
>>>> clicking if I connect it to A/C power and try to turn it on (also, the
>>>> buss-type inline fuse is still intact). I assume it is in the primary
>>>> power supply and would like to have some advice on the most commonly
>>>> failing parts in that area. I have done some research and feel pretty
>>>> sure that I will need to change the flyback transformer, but would like
>>>> to know other common weak points.
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Terry Conley
>>>>
>>>> Terry.conley@xxxxxxxxx
>>>>
>>>>
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