Re: Any Panasonic VCR Experts In Here?

"nipperchipper" <nipperchipper@[EMAIL PROTECTED]
> wrote in message 
news:J-SdnUraL6u1MPbVnZ2dnUVZ_hOdnZ2d@[EMAIL PROTECTED]
>
> "Ron" <BigELilE05@[EMAIL PROTECTED]
> wrote in message 
>
news:93b8e32f-997a-48b9-91fa-858c504de3b8@[EMAIL PROTECTED]
>>I have two Panasonic VCR's, model numbers PV-V4540 and PV-9450.
>>
>> They are almost idenical on the outside and very simular on the
>> inside.
>>
>> The "newer" model - PV-V4540 - seems to have a head going bad from
>> everything I've read.
>>
>> The PV-9450 works fine, but doesn't have the features that the PV-
>> V4540 has.
>>
>> I would like to install the head unit from the PV-9450 (the older one)
>> in the PV-V4540 (the newer one).
>>
>> They look the same, but are they the same? And if I swap the
>> headunits, will the alignment be the same?
>>
>> Here are pics of the head units. The one thing that I wondering about
>> is the "arm" on the center post of the (newer) PV-V4540...what is
>> that?
>>
>>
>>
>> PV-V4540  head unit
>> http://i126.photobucket.com/albums/p96/bigelile/IM002417-1.jpg
>>
>> PV-9450 head unit
>> http://i126.photobucket.com/albums/p96/bigelile/IM002411-1.jpg
>>
>> PV-V4540 face
>> http://i126.photobucket.com/albums/p96/bigelile/IM002414-1.jpg
>>
>> PV-9450 face
>> http://i126.photobucket.com/albums/p96/bigelile/IM002413-1.jpg
>>
>>
> from the parts list pvv4540 uses the beliow listed upper cylinder head
> VEGS0427  ( A )
> VEGS0428  ( B,C,D )
> VEGS0429  ( E,F )
>
> pv9450 uses
> VEHS0571  ( A )
> VEHS0570  ( B,C )
> VEHS0567  ( D,E )
> not much help but swapping may not hurt
>
>>
>
Given that info, it's probably not going to work right. Hifi sound is 
critical of correct head performance, so if there are any specification 
differences between the head drums, there will likely be a problem. As far

as swapping the entire head drum assembly goes, you will often find that 
even identical-looking assemblies won't fit because a screw hole or
chassis 
locating boss has been deliberately offset to prevent it. As for having to

use a puller to remove the upper head drum (which I have always thought is
a 
far more straightforward job than swapping the whole assembly) on some 
machines, that used to be a given, but I always found that Pans came off
ok.

Not that for some years it's been a viable proposition to replace heads, 
even on 'good' machines. The cost of the head drum alone, without any 
labour, exceeded tha cost of a bargain warehouse all singing and dancing 
machine with a ****ny new 2 year warranty ...

Arfa