oscilloscope not showing trace have checked out lots of thing and show to be fine but ran a cross two 3.9kΩ resistor one getting very hot the other nothing both show good resistance Help pl
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Re: oscilloscope
What is the make and model of the oscilloscope?
This would help you find a fix to the problem you are experiencing.My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics. -
Re: oscilloscope
Please do not start multiple topics on the same issue, it only makes our job harder.
https://www.badcaps.net/forum/showthread.php?t=13613
https://www.badcaps.net/forum/showthread.php?t=13620
I'd just continue in this one: https://www.badcaps.net/forum/showthread.php?t=13620A working TV? How boring!Originally posted by PeteS in CAComment
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When I assembled dreamcast I mistakenly fastened long bolt and It resulted in
cutting tiny trace.
This tiny trace(Total width of white coating is 5.5mm) is between R337,R343 and IC101 and it is covered with white coating in the below screenshot.
Firstly I tried to bridging tiny broken trace with my own eyes...But it is totally impossible..So a week ago, I ordered G1200 Digital Microscope and I magnified this tiny broken trace with it.
But It seems that It is really very tiny trace So I plan to order 0.1mm coper wire from aliexpress in order to bridging... -
Hello.
I have jut got my first analogue oscilloscope. An Isotech 620 20MHz.
I want to learn how not to damage it, and I found instructions on the internet obscure.
They talk about ground, earth, floating ground, this, that....
But they don't actually say anything anything useful so far.
I want to know:
Don't connect exactly this to exactly there or it blows up.
For example, I am tracing a signal from a function generator in an audio amp, or testing for voltages in different parts of a circuit.
I want to know what not to connect... -
(If anyone has a functional boardview file of FX505DV/DU that would be helpful)
(Had 3 problems, now just 1)
I have no experience or knowledge and usage of tools to repair devices besides the entire past 12-10 days of researching, watching YouTube repair videos and troubleshooting this laptop motherboard. ChatGPT was used as a guide to ask questions.
I used boardviews of mostly FX505GD-M, and some FX505DU, FX505DD. Used schematics of FX505DU.
I had originally intended to replace the BQ24780s first (due to previous battery removal while benchmarking) but I... -
I do some hobby repairs mainly of my own junk, and I don't know much programming level repair/mods.
I got the AVR-2802 over the weekend, sold as working of course, and it worked for 1 night, using EXT. IN 5.1CH jacks, then after power down, the audio never came back. I've reset it, and get nothing on EXT IN or PHONO, despite having everything set right, hooked up right. I can hear lots of relays work tho.
I just want it for 5.1CH analog inputs , for PC surround sound. I'm not worried about the video or most of the digital stuff for now.
So far I've traced... -
If anyone can help it will be very appreciate!!
Motherboard - (TUF GAMING B550-PRO) client connected Floppy Drive 4-Pin Power Connector to RGB_Header_1 +12V G . R . B and Burn one N6V8 and Damage all circuit trace, please check pictures, Motherboard not turning on & everything check ok, no short to ground, I need to repair all circuit trace and replace burn N6V8 but don't know where this 5 circuit trace connect to N6V8. If anyone with TUF GAMING B550-PRO can check. “Thank you in advance”...05-07-2023, 05:38 PM
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