Dave repairs several faults in a 500MHz HP54161B 2GS/s oscilloscope.
One in particular is quite elusive, can you figure it out before Dave does?
BONUS: Sneak peak at a new Siglent SDS1000X-E Series scope!
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One in particular is quite elusive, can you figure it out before Dave does?
BONUS: Sneak peak at a new Siglent SDS1000X-E Series scope!
Forum: http://www.eevblog.com/forum/blog/eevblog-982-hp54616b-500mhz-oscilloscope-repair/'>http://www.eevblog.com/forum/blog/eevblog-982-hp54616b-500mhz-oscilloscope-repair/
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
http://www.patreon.com/eevblog
EEVblog Amazon Store (Dave gets a cut):
http://astore.amazon.com/eevblogstore-20
T-Shirts: http://teespring.com/stores/eevblog
💗 Likecoin – Coins for Likes: https://likecoin.pro/ @eevblog/dil9/hcq3
Done.
👍
I've had this "InEr" on my new BM789 after spraying the smallest amount of electronics contact-ol (like deoxyt) into the probe sockets. After opening the unit I cleaned the pcb around the probe sockets and it fixed it. Seems that the probe detection cct is very sensitive.
So, you could try to clean up the pcb of any residue and see how it goes.👍🏻
I picked up an agilent 54622a for free recently and i love it
in like Flint
If only this video has some more ‘scopes in it 😂
Old HP54600 series' front keyboard usually crack not from users being rough, but somebody was in the front panel keypad before but didn't know better to slide the board under the retainer but instead they just forced the board above the retainer clips with screws. The repair guy thought they got away with not RTFM and over time the board fractured from the unnecessary stress from the retainer
Usually when it's a section of buttons/dials not working in a keyboard in general (even a good old computer keyboard that I'm typing this comment on), it's almost always a physical crack/disconnect in the lines. I'm surprised Dave chased it down to the active components before taking the front panel keyboard out for an inspection.
Really enjoyable repair that Dave! 🙂
Ти дійсно поліз до контроллерів шини не перевіривши цілісність плати? Мабудь трохи інтриги.)
THUMBS UP x5👍👍👍👍👍 , very happy repairing job , learnt a lot , appreciate the good work saving this very nice machine 🙏🙏🙏
Don't be a tightarse buy the part ,you've got the money .Dave repairing electronics is not your strong point,your strength is getting stuff for free and getting away without putting your hand in your wallet ,you can talk electronics but you can't fix them unless your extremely lucky, and you know a broken watch is right twice a day .
The broken corner on the plastic might be a clue.
winner the circuit board breakage A big bravo for this troubleshooting
Thanks, Dave – well, I was wrong, but lesson learned: A methodical approach is best.
Watched the whole session! Great job.
What could cause enough stress to cause cracks on the keyboard PCB and the hybrid? Was it dropped maybe?
"The Service Man who Tells", back in the public eye then, neat.
I love this scope, nice to see you taking it apart so I don't have too. So many bits 😉
Hello, I am manipuled osciloscópio , blz… é tranquilo pra mim blz … my freend ?
could someone give me a spolier so i dont have to watch the whole video
Hi! Thing of beauty is joy forever. Here's the model for those, playing along at home. We're in, like Flynn. "One hung low" brand flapping in a breeze. That's a bit "how ya doin". Thou shalt test voltages. No problems, whatsoever. Let's power it up, shall we? Hello, hello? That's one sick puppy. It's upside-down, so all the electrons gonna fall out. Doh! Stupid me. Winner-winner, chicken dinner. Bob's your uncle. Give it a big "thumbs up".
muy buen video de reparacion
I've been lucky powering it up and if no smoke, running a temperature sensor over the board.. in most cases, it's either cold or too hot. Contact cleaner on the pots really cleans-up the signal, connectors might be next.
I wiggle around all the controls to see if any of the contacts are dirty.
Vacuum it out, pull off the knobs, spray a little bathroom cleaner (foam) on it, wipe it off, and replace the knobs.
This is coming from a technician who has been on the track a long time.