Sears SR3000 Monitor

[SavannahLion]

After digging around in my possessions, I came across an old Sears SR3000 monitor. Probably measures around 15" so it's not likely suitable for a cab. Somewhere I should still have the original manual for it if you believe it. Problem is I can't find it.

I originally bought this to accompany my Atari XEGS when I bought it brand new. Sometime around the mid 80's if I recall. Since then, I've always exclusively used the A/V jacks for every console up until the SEGA CD. When I moved, I finally decided to "retire" the monitor and place it in storage.

Anyhow, moving along, it's equipped with RCA A/V jacks and an 8-pin connector labeled 'RGB'. The RGB  is not in any style I've seen elsewhere so I have no idea what the pinout is supposed to be. Checked out pinouts.ru and it's not even listed. The connector is an old school style I've seen on other monitors and TV's. Except I've never seen an 8-pin design like this one.

It's two rows of four arranged on a rectangular connector.
The first three on each row are grouped together to make a group of six. The last two pins are spaced a little farther from the group of six.

Even though this isn't the actual connector, the connections have the weird slanted shaping.


I'm guessing the closest monitor (regarding pinout) might be the Commodore 1084, but I get conflicting information the pinouts. Sites either describe 6, 8 or 9 pin configurations. Finding a good clear photo of the back is proving difficult.

Can anyone help out or am I stuck until I locate the blasted manual?

[Pac-Fan]

There were multiple revisions of the 1084 monitor. 4 primary ones, and possibly others.  IIRC, the square corner/sharp edge versions were Philips made, while the rounded ones were Orion made. The inputs varied slightly on each one dependinig on the intended initial use of the monitor, e.g. for the Commodore 64 vs 128 vs Amiga, since each had different capabilities.

Sears relabelled numerous Commodore compatible equipment like monitors and printers and other stuff, just like they did with appliances,etc..   I know they had an SRx000 labeled dot matrix printer based off one of the Commodore MPS line ones.

I'd scour the Commodore fan sites for the 1080, 1084 and 190x series monitor input jack descriptions, especially in the Amiga compatible line (analog RGB), as it could have been pulled from any of those series.  Also check into Atari too because they may have copied the Atari 520 ST (similar to the Amiga) series of monitors.

I'd actually take the cover off and find out which pins go where, or at least meter out which is the ground pin.  Then take a ground, H+V combined sync and one RGB color and start connecting to the other pins and work til you get at least 1 color up, then add the extra colors.

[SavannahLion]

Sears relabelled numerous Commodore compatible equipment like monitors and printers and other stuff, just like they did with appliances,etc..   I know they had an SRx000 labeled dot matrix printer based off one of the Commodore MPS line ones.

So I could conceivably own a rebranded version of the fabled Commodore 1084 and not even realize it? Sweet! 

Ahem... right, and I'll win the lotto this week too.   

Thanks for the pointer. I knew a little bit about the existence of the 1084, but no clue on the 1080 and 190x series. I also recall the Atari 520, but thought that was a very limited scope. I think AtariAge might be a good place to ask about that.

What source should I be testing with?