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Subject: Re: WTB: Manual for Motorola R2001-A Service Monitor
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Date: 06/05/00 at 11:32 PM
Posted by: Marty
In Reply to: Re: WTB: Manual for Motorola R2001-A Service Monitor posted by Don on 06/05/00 at 10:16 PM:
: : I need a service manual for a Motorola R2001-A
: : service Monitor. Especially need schematic for
: : power supply section, since I know there is a problem
: : there!
: : Location: Colorado USA Fax: 914-831-1872
: : email: firstname.lastname@example.org
: Do you still need this manual ?? I have it I can copy power supply pages for you.
: What is wrong with unit? Don
Yep, I still need it.
The processor board has about 2 volts or less powering the logic. Scope tube filament glows
and there is a large round dot on face of tube when powered up. There is a 2-3 watt ww 1 ohm
resistor in the power supply that got hot enough to melt the solder on the leads.
Thats what I know so far. I took the power supply electronics chassis out and inspected it,
but did not take the power transformer out to try to run the supply on the bench. That will
probably be the next step. If I knew the power supply output voltages, I might try to kludge
up some external power supplys to check out the rest of the unit.
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