[rescue] Sony GDM-20E20 monitor boards
jonathansturges at yahoo.com
Tue Dec 18 21:01:12 CST 2007
OK, this may be an arcane offering, even for this list!
I have a set of circuit boards from a Sun-branded Sony GDM-20E20 monitor. The boards are basically new, having been used only once or twice. Free (+ shipping) to anyone who has one of these old monitors and would like spare parts.
I picked up one of these monitors for free at a hamfest several years ago. The screen was so dim, you could only tell it was on when viewed in a darkened room.
Coincidentally, I also got another 20E20 that had been used once or twice before someone put a forklift through the screen. So this monitor became the board donor.
Turns out the dim picture in the first monitor is fairly common with these monitors, and the culprit is a chip on the board attached to the end of the picture tube. So I swapped that board with the board from the donor, and the monitor worked. All other boards from the donor remained unused, and they've been in anti-static bags ever since.
I understand that there are 2 chips used in these monitors that are frequent-failure components: one was on the board I used, but the other is on one of the remaining boards in this set I'm offering. I can't remember their numbers, but that might be good for anyone who likes Sony monitors.
More information about the rescue