Is it safe to test components live while the unit is on like that? O.o
I'd actually like to know, because I have a Chronomatic-218 alarm clock radio I'm trying to fix, and it has the same exact issue with the left channel. I asked someone on a forum about it already, and they seem to think it's the capacitor right before the circuit reaches the speakers in the schematic... Was that the case for you? How did you go about testing the capacitors?
@Matrix803 As long as the part you are testing in is not at the mains voltage, but lower (as in most solid state devices), it is OK. But with mains voltage and higher (as in vacuum tube/valve equipment), it is very dangerous and should not be done live. I tested the caps by just putting a known good cap across different caps on the circuit board until I found the bad one.
maybe you had the capacitor in the wrong way around...electrlytic capacitors have a positive lead and a negative lead like a battery...also if you hold the soldering iron against the circuit board for too long it will fry the component
cassette master im so sorry to tell you sucks soldering man.
buy tools soon like a (de-soldier) its a syringe to get out the iron of the pcb and a soldier with a thin stick to get close to the bad capacitor without de-soldering the rest of the pcb.
Wow, that was suspenseful when the replacement capacitor was a dud! Glad you got it fixed, must make you feel really good. What kind of tip do you have on your iron? I use a flat blade tip (looks like a screwdriver) and a solder sucker when replacing components. This was a fun video, thanks!
Nice video, but I'm not a big expert on repairing vintage audio stuff, because I don't need soldering tools to replace the capacitors, but it might burn myself and ending up burning down the house.
so did you use any special method to isolate that cap? or was it trial and error?
This makes me want to dig out that reel to reel I've been neglecting all last year and try to find the problem again^^ (Extremely low sound and hum) I hope it's not a bad tape head...
You can buy desoldering guns to remove these kinds of components instead of pulling the capacitor off the board, of course these guns cost money, but it would be a good investment if you're doing these kinds of repairs.
I had a stereo (seen on another youtube channel I had called audiotrash47) which had a week channel, I replaced loads of capacitors and couldn't fix it, the stereo got worse and worse and the power transistors started getting really hot and the whole amp is now dead. :( mystery to me.
WHERE IS YOUR SOLDERING TIP ?
BOBTUNNELTON 5 months ago
Is it safe to test components live while the unit is on like that? O.o
I'd actually like to know, because I have a Chronomatic-218 alarm clock radio I'm trying to fix, and it has the same exact issue with the left channel. I asked someone on a forum about it already, and they seem to think it's the capacitor right before the circuit reaches the speakers in the schematic... Was that the case for you? How did you go about testing the capacitors?
Matrix803 1 year ago
@Matrix803 As long as the part you are testing in is not at the mains voltage, but lower (as in most solid state devices), it is OK. But with mains voltage and higher (as in vacuum tube/valve equipment), it is very dangerous and should not be done live. I tested the caps by just putting a known good cap across different caps on the circuit board until I found the bad one.
CassetteMaster 1 year ago
@CassetteMaster
Alright, that's what I'll do. Thanks man. :D
Matrix803 1 year ago
Why is the laft channel, the repaired one, alot flatter than the working right channel? different cap values? camera placement? different speakers?
acidise 2 years ago
You so gotta be proud of yourself...this is so cool
AccordionManiac 2 years ago
mira que tarado que seras que pusiste el capacitor al reves jajaja .
leonelkk 2 years ago
Your as dangerous guy as I am.. Have you ever got it to your nails? 8) Tv hi-volt formers are best so far..
jartsipoika 2 years ago
your a smart man!
HoodArt916 2 years ago
maybe you had the capacitor in the wrong way around...electrlytic capacitors have a positive lead and a negative lead like a battery...also if you hold the soldering iron against the circuit board for too long it will fry the component
wedrinkmountaindew 3 years ago
cassette master im so sorry to tell you sucks soldering man.
buy tools soon like a (de-soldier) its a syringe to get out the iron of the pcb and a soldier with a thin stick to get close to the bad capacitor without de-soldering the rest of the pcb.
Please review that.
Good wishes
mangadehi 3 years ago
I got a desoldering iron and it is an amazing tool!
CassetteMaster 2 years ago
Wow, that was suspenseful when the replacement capacitor was a dud! Glad you got it fixed, must make you feel really good. What kind of tip do you have on your iron? I use a flat blade tip (looks like a screwdriver) and a solder sucker when replacing components. This was a fun video, thanks!
clydesight 3 years ago
Cool! very informative.
rockybabyboy 3 years ago
Nice video, but I'm not a big expert on repairing vintage audio stuff, because I don't need soldering tools to replace the capacitors, but it might burn myself and ending up burning down the house.
BrooklynMouseReturns 3 years ago
so did you use any special method to isolate that cap? or was it trial and error?
This makes me want to dig out that reel to reel I've been neglecting all last year and try to find the problem again^^ (Extremely low sound and hum) I hope it's not a bad tape head...
coolbluelights 3 years ago
I'm 32 years old and have learned so much watching your videos! Keep in mind I was a ham radio operator at your age too.
billybassman21 3 years ago
January 18th happens to be a Sunday. And the radio has "Pleasant Valley Sunday" playing!
Frritzz 3 years ago
Cassette master is sooo cute!!
tribalmasters 3 years ago
Awesome video! You REALLY are an electronics GENIUS! Yo're a COOL guy!
oviwolf 3 years ago 6
Was the new capacitor the same value as the one you replaced?
wildbilltexas 3 years ago
Yes. 10uF.
CassetteMaster 3 years ago
do you listen to CCR? and canned heat? im 14 and i love them!
Durken316 3 years ago
You can buy desoldering guns to remove these kinds of components instead of pulling the capacitor off the board, of course these guns cost money, but it would be a good investment if you're doing these kinds of repairs.
Lachlant1984 3 years ago
This is great! Sorta do-it-yourself instructional video.
You are awesome!
wilkes85 3 years ago
I had a stereo (seen on another youtube channel I had called audiotrash47) which had a week channel, I replaced loads of capacitors and couldn't fix it, the stereo got worse and worse and the power transistors started getting really hot and the whole amp is now dead. :( mystery to me.
jedw 3 years ago
Now I know what that pointy stick tool is for! I got it as part of a Radio Shack soldering kit and had no clue about its intended purpose.
vwestlife 3 years ago
Thanks so much Ricky, I learned a lot from this one. I've got a nice old receiver with the same problem so I'll have to test the caps.
bluenazz 3 years ago
Looking good!
damusician 3 years ago