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beginner try to repair old HP 54720A scope
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Topic: beginner try to repair old HP 54720A scope (Read 3935 times)
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Daxxin
Regular Contributor
Posts: 213
beginner try to repair old HP 54720A scope
«
on:
April 05, 2017, 07:48:29 pm »
looks like something wrong while OS firmware loading ..it hangs try to view
this short video
https://youtu.be/dC2fFuHED0E
any hal or experience
very apreciated
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tpowell1830
Frequent Contributor
Posts: 863
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Peacefully retired from industry, active in life
Re: beginner try to repair old HP 54720A scope
«
Reply #1 on:
April 05, 2017, 08:30:07 pm »
Do you have the service manual?
If not, here is the link:
http://dedisol.unsads.com/~squalyl/kurteries/manuals/HP%20Agilent/HP%2054710A,%2020A,%2017A,%2018A%20Service.pdf
1. Did you try to reseat the boards as suggested on page 5-22?
2. Do you have the original floppy with the firmware? If so, then you may need to reload it as per page 5-15.
I hope this helps. Good luck.
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PEACE===>T
Daxxin
Regular Contributor
Posts: 213
Re: beginner try to repair old HP 54720A scope
«
Reply #2 on:
April 06, 2017, 04:09:28 am »
thanks Tpowell im taking apart soon , about system disks ..nothing even googoling never found
if someone has please share them.
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Daxxin
Regular Contributor
Posts: 213
Re: beginner try to repair old HP 54720A scope
«
Reply #3 on:
April 16, 2017, 10:24:37 am »
Battery totally discharged 0v , i have only 3.6 lithium same size to solder its ok to replace with this? Original its cr17450se 3V
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Daxxin
Regular Contributor
Posts: 213
Re: beginner try to repair old HP 54720A scope
«
Reply #4 on:
April 16, 2017, 03:28:07 pm »
Replacing the battery back to alive but calibration of mainframe gone need specific module 54717A
to calibrate it.
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sahko123
Frequent Contributor
Posts: 324
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Re: beginner try to repair old HP 54720A scope
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Reply #5 on:
April 16, 2017, 06:44:33 pm »
Whats the blue mod wire for?
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Cyberdragon
Super Contributor
Posts: 2676
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Re: beginner try to repair old HP 54720A scope
«
Reply #6 on:
April 16, 2017, 09:49:24 pm »
Quote from: sahko123 on April 16, 2017, 06:44:33 pm
Whats the blue mod wire for?
They probably needed to connect those pins but had a perpendicular track across there on every layer. #autorouted
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Explodingus - someone who frequently causes accidental explosions
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