I enclose, which hopefully will help someone, the pdf files with the opt13 and console interface schematics for the TDS scope family.
Of course these are not original Tektronix schematics? but the result of my reverse engineering so I can't guarantee that they are errors free.
Regards
Giampi
---In tekscopes@..., wrote:
I'm trying to repair a very stubborn TDS-520 fails on testing the proc and acquisition boards. Major capacitor leakage inside the unit. After a thorough clean and recap the unit this fails on both boards. Further research showed a track under a resistor that was broken. I repaired the broken track but it still isn't working correctly.
I found out there's a debug port: J40 (board edge connector). Information in the internet about this debug port is fragmented and far from complete. I'm trying to get this sorted out to a complete solution.
speaks about connecting an Option 13 (serial/parallel comm board) to this debug port. Separate option 13 boards are hard to find and otherwise quite expensive. It basically is nothing more than a pcb with a MC68681 Dual UART, some logic and 2 d-sub connectors.
Is there any schematic around of the Option 13 board? Or any other circuit that interfaces between the scope and the serial port of a pc?
Thanks.
