Repair bin stories Message #1 Posted by GE on 11 Apr 2006, 3:45 a.m.
Hello, I recently dug out my "repairs" bin, full of semi-working machines.
First to take the dive was a Toshiba BC-602L whose keyboard was stuck thanks to some caffeine and sugar-based beverage generously spilled on it (of course was sold to me as "working" on eBay...). Actually, itt took the dive as all it needed was a bath in soap water, careful rinsing and some hair dryer care. Came back in full shape, I love those strange "6 digits with 12-digit calculating capability" machines as G.Ball says !
Second to show its innards was a Technico 77SR, and here I need help. To my surprise the display is a 12 digit bubble stick made by HP (so this is not 100% OT) ! It is marked as "made in Singapore", has some slight corrosion which can be cured.
Everything else looks good, I'll check a possibly bad capacitor, but my problem is another component which is square, about 3x3x1 cm, marked :
BEST CHOICE
DC - 2415E
7510
TAIWAN
What is this ?? I don't want to test / desolder it without further knowledge. For the record, the single LSI is marked "A4802CB", "7615", and has a logo I don't know. Do you know its maker ?
I hope you don't mind these questions, as I know there are several engineers carrying screwdrivers...
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