Products > Test Equipment
Reverse engineering Tektronix TDS3GV module for TDS3000 series oscilloscopes?
Galen:
--- Quote from: james_s on June 06, 2020, 09:54:20 pm ---I've used the ADV7123 in other things before, the datasheet says to ground unused inputs. If you tie them high you'll never be able to display black.
--- End quote ---
Thanks James_s. I ordered a few ADV7120 and 74LCX245. But the connector is not cheap. I may try to use a PCB with finger contacts for the test first.
Jwalling:
--- Quote from: Galen on June 06, 2020, 12:57:17 pm ---The drive is a slim type standard floppy drive. Not a specialized part for Tek.
--- End quote ---
Not always true, earlier ones had a wider drive, but otherwise standard interface. The wider drives were also used on some of the TDS500 to TDS700 scopes as well. Because of this, there are two different rear covers to accommodate the different size drives.
madao:
wider slim floppy is not a tek special. it is using also in HP oscilloscope and some notebook (very old)
Wider slim floppy drive is excatly wide as 3.5" standard FDD.
Thanks for reserve engineering of TDS3GM /GV Module.
Greetings
matt
james_s:
--- Quote from: Galen on June 07, 2020, 04:49:48 am ---Thanks James_s. I ordered a few ADV7120 and 74LCX245. But the connector is not cheap. I may try to use a PCB with finger contacts for the test first.
--- End quote ---
Isn't the connector only about $10? It would be expensive if you needed a bunch of them but for just one that doesn't seem too bad to me.
Galen:
Yes James, found another source, price only 3 bucks each. Ordered 3 pieces.
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