[GreenKeys] 28 ASR copy light switch?

[William Wuttke]

Hi John,

I recently went through the M28ASR restoral process. I found the following drawings most helpful during the process - all gotten from Nick England’s most helpful site. It took all the drawings together to finally sort things out.

Typing Unit, LP15					3214WD
Electrical Service Unit, LESU13		3292WD
M28ASR-GP-OPT I AC with LESU13	3294WD
Keyboard Base, LAK4				3302WD

I’ve attached a couple of pictures illustrating the ON-OFF-MAINT switch:


1. Switch top view


2. Switch bottom view. Cable goes down to terminal blocks. LV transformer is mostly hidden underneath the cables, mounted on the back wall. Drawing 3294WD sheet 5 of 6 shows how mine is wired.

Good Luck,
Bill
KE3BK


> On Jul 13, 2020, at 9:47 AM, John, W9DDD <w9ddd at tapr.org> wrote:
> 
> I'm still noodling the wiring, but I see drawings for the ASR cabinets that show the same arrangement as the KSR/RO cabinets.
> 
> I don't see in the parts book a mounting of the switch like for the KSR/RO cabinet.  I don't find a switch anywhere on my unit.  It looks like I may have the resistor with 60 Volt lamps version of copy light.
> 
> I have a cable with parts hanging on it that would convert to the transformer with 6 volt lamps version.  There's also a switch and cable with a bracket not connected to the other parts/cable.  I don't see that bracket anywhere in the parts docs, and I can't envision where it would be mounted.
> 
> Anyone have the NORMAL ON-OFF-MAINT ON copylight switch in their ASR?
> 
> -- 
> John, W9DDD
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