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| HP 5335A Timer / Counter - Anything i should know? |
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| Vgkid:
So I reseated the relay, and lost all front panel functionality,rocked it, and everything worked. All test passed. Also found out that option 40 is installed(wondered why there so many relays on the A2 board, when there should only be 1.), wish it was the prescaler though. |
| orin:
--- Quote from: Vgkid on April 17, 2015, 04:08:51 am ---So I reseated the relay, and lost all front panel functionality,rocked it, and everything worked. All test passed. Also found out that option 40 is installed(wondered why there so many relays on the A2 board, when there should only be 1.), wish it was the prescaler though. --- End quote --- Similar to what mine did - fan came on, but no display. I disturbed the relay and it started working. It's time for a new relay socket... part #27E213, PB806-ND from Digi-Key; Mouser and onlinecomponents.com have them too for $2 or so. Easy enough to replace with a decent desoldering tool. The bad socket contacts should be obvious, so you could try bending them back a little but it's just a matter of time before they fatigue again and open up. I'd consider trolling ebay for a 'dead'* unit with the prescaler if you really want the third channel, but it's probably cheaper to get one of the chinese 2.7GHz counters, open it up and disconnect the timebase output... *fan comes on, no display would be a good bet! |
| Vgkid:
Already ordered the socket, I think I would rather just buy/make a /10 prescaler. |
| Vgkid:
I was trying to dig up any information in the A/B rear input. I have 2 BNC to sma cables installed. The 2 sma connector portions are just held in plave by a spring metal cable clip not connected to anything. The manual doesn't mention anything, and none of the addendums do either. |
| Vgkid:
Necro bump the "parts" counter came today where is the A4U1b to A4U2b jumper located, that is used for option 10. Both units appear the same. EDIT found the jumper resisyor, was looking for a marked link. |
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