[time-nuts] [OT] Help needed with HP 16700A
Mark Sims
holrum at hotmail.com
Wed Aug 5 02:53:25 UTC 2009
Yep, the problem follows the interface board. Utterly baffling... there is really nothing to go wrong. Signals buzz out correctly cable end-to-cable end. I replaced the DIN connectors. All components measure correctly. I don't remember the values, but the diodes are standard 1N4148's used as overshoot clamps. R's and C's are nothing special.
The 16700 series systems work fine with every PS/2 keyboard and mouse I have ever connected. I have a fully configured 16702B in the shop... seldom use it. I much prefer the 16500B because it boots in 15 seconds compared to minutes on the 16500C and 16700 series machines.
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