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Old 18th April 2005, 12:02 PM   #1
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Unhappy marshall valvestate VS100 schem?

Hi,
I'm trying to find marshall's VS100R schem.
Any link?
I have done a lot of searches with no results
Thanks
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Old 18th April 2005, 12:21 PM   #2
joensd is offline joensd  Germany
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Hi,
Iīve got one for the 8100.
Donīt know if itīs the same.
If you wanna have it drop me a mail and I`ll send it over (420kB).

greets
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Old 18th April 2005, 12:57 PM   #3
Giaime is offline Giaime  Italy
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Hi I have got the Valvestate 65 schematics: they should be similar. Send me an Email if you want them...

An Hint: post this on http://www.firebottle.com/fireforum/...fg=ga&enter=go
Maybe there you'll find them...
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Old 18th April 2005, 01:24 PM   #4
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thank you guys.
I also have VS65 and 8080,8100 but I need VS100R's schem.
Someone has done some mods in it and I'd like to repair it.
The problem with other schems is that the component numbers are not the same.
For example a pot named VR2 isn't the same with the VR2 on VS65 schem.
And I think that there are some differences in the preamp stage of VS65 and VS100.
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Old 19th April 2005, 04:40 AM   #5
Enzo is offline Enzo  United States
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Send me an email with "VS100R Schematic" in the subject line.

My email is tmenzo

then the symbol for "at"

then msn dot com

Those VS series circuits are related but not the same.
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Old 19th April 2005, 06:20 AM   #6
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Thank you Enzo !!!!!!!!!!!!
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Old 20th April 2005, 03:31 AM   #7
Enzo is offline Enzo  United States
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On the way, let me know if it is lacking in some way.
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Old 20th April 2005, 04:06 AM   #8
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Hey Enzo,


Thanks again for those SWR sam's you sent me! they were great! i have my SWR 300 up and running and actualyl up for sale as i bought a broken SM-900 that i will be keeping. the sam's you sent me have all the 900 stuff there as well!


Many many thanks


Zc
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Old 20th April 2005, 08:46 AM   #9
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Thank you Enzo,
Seems that is what I needed!!
The only difference is that on my PCB there's a different code number...V100-60-00 for the preamp unit instead of V100-60-02...I don't have the other PCBs in front of me.
But the circuit looks exactly the same.
I don't know why but the previous owner is... !!!
IC6 is missing!!!!!!!!!!!
What kind of IC is this? M5201?????
It isn't a normal op-amp.It's sth like a mixer op-amp!?

Any good marshall dealer in Europe?So I can order some parts?
I need three pots and this strange op-amp.
As I can see from the other op-amps on the PCB,it's a mitsubishi 5201A.
I ask my local surplus store for this but...nothing.He told me that I can order it only from a Marshall dealer.
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Old 21st April 2005, 08:37 AM   #10
Enzo is offline Enzo  United States
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I would contact Marshall and ask them who distributes parts for them in Europe. I always get my 5201s from Marshall here. If I recall well, it is an analog switch IC, used to route signals
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