I've been learning SMD soldiering and repair as a hobby for the last 6 months or so and have felt that I have really begun to master the various techniques and tools, but I have really been struggling in the troubleshooting of things department. Tracking down a fault on a board. Specifically, finding a good explanation and demonstration of fault finding in Diode Mode. Your video cleared so many of the little cobwebs I had in my understanding of what was happening. I really appreciate this video. Very well done. You have helped me a great deal in my journey.
Brilliant information and very very well presented. You explain this so much clearer and with purpose of why than many. Are you going to release more series on other tools? I’m hoping you continue this!! Many thanks for putting such useful info into the community! One small noob question…with respect to these dc components, are you aware of any differences outside of perhaps a/c step down components, that vary between countries? In other words would a board in uk and one in us be viable comparisons in diagnostics?
Yep I'll continue this for oscilloscopes and other tools soon. For differences mainly video standards so frequencies between 50 and 60Hz. Then mains step downs. Not much more I can think of off the top of my head
Great series. I have learnt so much and taken so many notes. Thank you so much for taking the time to explain all of this. Now if I could just borrow your brain that would be amazing 😂
Key info after 5:25 mark. (Shorted to ground). AND at 12:36 (testing capacitors & inductors) Inductor test at 13:11 (Ps. These are mostly notes to myself as I’m learning) Working board (normal behavior) at 13:26 Nice to have a working board (exemplar)
So I had thought that one of the big reasons you put your positive probe on ground was that current will flow through the ESD protection diodes on ICs. For example, if you put positive on an I/O pin and negative on ground, you should see no current flow ("OL") because the ESD diode is reverse-biased and blocking the current, but if you put positive on ground and negative on the I/O pin, you should see current flow, and the voltage drop should be the drop of the now forward-biased ESD diode. Is this right? BTW, do you mind if I ask where your accent is from? It's very nice, and quite comfortable sounding.
It has various reasons. Overall the main one is just over time it becomes more useful readings being red on ground. One for the reason you mentioned it helps to check protection diodes. The other is most things don't flow in reverse so normal diodes in a circuit flow would block the probes flow unless they are faulty. I'm from Stoke on Trent in middle of UK. Potteries accent
Message for retrosix. I'm learning electronics and have a fully functioning board which I'm using to take various tests on and use for learning different measurements on various components to see how they work. I set my meter to diode mode,put red probe to ground and use black probe for testing, I have come across a couple of capacitors that don't beep on ground side and also on the circuit board there are some capacitors labeled as bc109 for instance. Could you give me some info on this please.
Hello I knew wired a skid loader and when I apply power from the battery the backfeed diode on the ignition circuit. Which I believe would be caused by overcurrent. Any suggestions on how to go about figuring it out?
Awesome video, quick question. I have a gameboy dmg original and it wont load any game, however the nintendo symbol appears and is slightly garbled. I cleaned all pins still now luck, what else could be the culprit? Thanks!
Could have damaged traces from CPU to the data pins of the cartridge, or the cartridge pins are heavily corroded stopping the data read. Use a diamond file inside the cartridge connector first to file the pins clean
@@RetroSix Hm, interesting. I've heard both. But what does your meter say if you set it to measure resistance in a particular range, say 2kΩ, and then measure a 5k resistor?
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I've been learning SMD soldiering and repair as a hobby for the last 6 months or so and have felt that I have really begun to master the various techniques and tools, but I have really been struggling in the troubleshooting of things department. Tracking down a fault on a board. Specifically, finding a good explanation and demonstration of fault finding in Diode Mode. Your video cleared so many of the little cobwebs I had in my understanding of what was happening. I really appreciate this video. Very well done. You have helped me a great deal in my journey.
Gosh, and such a good explanation of WHY the probes go where they go.. ah that was money my friend! Thank you!
the best tuto I found on the web (and I watched quite a lot)! I'm glad I found your chanel!
Glad you liked it
I got into hardware trouble shooting around 10 months ago, and have been wondering how to use the diode mode. Thanks for your video!
Your welcome
Very informative videos. just finished these diagnostics and repair course videos and explains alot in easy terms. Great Videos Luke well done.
Thanks glad you like them
Brilliant information and very very well
presented. You explain this so much clearer and with purpose of why than many. Are you going to release more series on other tools? I’m hoping you continue this!! Many thanks for putting such useful info into the community!
One small noob question…with respect to these dc components, are you aware of any differences outside of perhaps a/c step down components, that vary between countries? In other words would a board in uk and one in us be viable comparisons in diagnostics?
Yep I'll continue this for oscilloscopes and other tools soon. For differences mainly video standards so frequencies between 50 and 60Hz. Then mains step downs. Not much more I can think of off the top of my head
Thank you for this course, really helped me, I am a newbie with electronics but I am learning becaus I have an old bingo EM game. Thanks
Your welcome
Excellent informative video, really useful thanks :)
Glad you found it useful
@@RetroSix it is useful mate, enjoyed it. And your hair style is another level.
Fantastic information. Helpt me starting to understand👍
I like the intro alot. Not to long and really clean.
Appreciate it!
Best Teaching on the NET!!!!!
Thanks
Very well explained, thanks !! Hopelfully I can find anything wrong with my Game Gear with this mode.
Great video
Excellent video
Great series. I have learnt so much and taken so many notes. Thank you so much for taking the time to explain all of this. Now if I could just borrow your brain that would be amazing 😂
Your welcome. Glad they are useful
Great stuff, glad to subscribe
Great! Thank you.
Key info after 5:25 mark. (Shorted to ground). AND at 12:36 (testing capacitors & inductors)
Inductor test at 13:11
(Ps. These are mostly notes to myself as I’m learning)
Working board (normal behavior) at 13:26
Nice to have a working board (exemplar)
So I had thought that one of the big reasons you put your positive probe on ground was that current will flow through the ESD protection diodes on ICs. For example, if you put positive on an I/O pin and negative on ground, you should see no current flow ("OL") because the ESD diode is reverse-biased and blocking the current, but if you put positive on ground and negative on the I/O pin, you should see current flow, and the voltage drop should be the drop of the now forward-biased ESD diode. Is this right?
BTW, do you mind if I ask where your accent is from? It's very nice, and quite comfortable sounding.
It has various reasons. Overall the main one is just over time it becomes more useful readings being red on ground. One for the reason you mentioned it helps to check protection diodes. The other is most things don't flow in reverse so normal diodes in a circuit flow would block the probes flow unless they are faulty.
I'm from Stoke on Trent in middle of UK. Potteries accent
Cool!
I have that same multimeter
Maybe dumb noob question but on 1st good reference board AT 8:45 you test “inductors” , but they look just like ceramic capacitors? Am I wrong?
Yes chip inductors look similar. The key is they are usually a darker brown
Message for retrosix. I'm learning electronics and have a fully functioning board which I'm using to take various tests on and use for learning different measurements on various components to see how they work. I set my meter to diode mode,put red probe to ground and use black probe for testing, I have come across a couple of capacitors that don't beep on ground side and also on the circuit board there are some capacitors labeled as bc109 for instance. Could you give me some info on this please.
Hello I knew wired a skid loader and when I apply power from the battery the backfeed diode on the ignition circuit. Which I believe would be caused by overcurrent. Any suggestions on how to go about figuring it out?
Awesome video, quick question. I have a gameboy dmg original and it wont load any game, however the nintendo symbol appears and is slightly garbled. I cleaned all pins still now luck, what else could be the culprit? Thanks!
Could have damaged traces from CPU to the data pins of the cartridge, or the cartridge pins are heavily corroded stopping the data read. Use a diamond file inside the cartridge connector first to file the pins clean
OL = Over Limit
OL = Open Line
@@RetroSix Hm, interesting. I've heard both. But what does your meter say if you set it to measure resistance in a particular range, say 2kΩ, and then measure a 5k resistor?
OL=Open Line +👍
👏👍
My Fluke 18B+ doesn't beep on diode mode ?
Yeah, some multimeters do have the beeper combined with diode mode, others have combined with resistance mode.
what camera are you using to record overhead shots
I have a BlackMagic Studio 4k above with a Sigma Cine glass, and for close ups I have a Tagarno 4k microscope
@@RetroSix thanks. subscribed for your informative vids.
How can I test smd capacitor component
Remove them from the board then use a multimeter in capacitor mode or an LCR meter for more accuracy