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My First Video Blog - Repairing a TV
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Topic: My First Video Blog - Repairing a TV (Read 3205 times)
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kolbep
Frequent Contributor
Posts: 600
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My First Video Blog - Repairing a TV
«
on:
October 20, 2012, 08:48:10 pm »
Hi
This is my first attempt at a video blog :
http://youtu.be/_B_De5c4XlA
But since the PSU Capacitor kept on zapping me, it turned more into a blooper reel.
Please feel free to comment here or on the video. Does anybody think I would make a reasonable part-time video blogger?
Thnks
peter
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www.ShoutingElectronics.com
Don't just talk about Electronics, SHOUT ABOUT IT! Electronics Blog Site and Youtube Channel
tom66
Super Contributor
Posts: 7033
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Electronics Hobbyist & FPGA/Embedded Systems EE
Re: My First Video Blog - Repairing a TV
«
Reply #1 on:
October 20, 2012, 09:04:31 pm »
I think the heatsinks are live, you are not getting a 400V cap shock, but a 230V / 2 shock (115V) due to live heatsinks. Very painful, but usually only 2.2nF of series capacitance (Y-cap) so low-ish current.
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kolbep
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Re: My First Video Blog - Repairing a TV
«
Reply #2 on:
October 20, 2012, 09:19:42 pm »
Nope, it was definately that main cap retaining it's charge (has no bleeder R either).
Each time I definitely had the set switched off and unplugged from the mains. The Power cord was also unplugged from the PCB most of the times.
P
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www.ShoutingElectronics.com
Don't just talk about Electronics, SHOUT ABOUT IT! Electronics Blog Site and Youtube Channel
SeanB
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Re: My First Video Blog - Repairing a TV
«
Reply #3 on:
October 21, 2012, 08:32:33 am »
First time I would have dead bugged a 1M 1W resistor across that cap................ Been there and gotten belted from old PC psu that had been unplugged for a month, but had open circuit discharge resistors ( and a non working standby power stage to discharge it) on the caps.
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Jad.z
Regular Contributor
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Re: My First Video Blog - Repairing a TV
«
Reply #4 on:
October 21, 2012, 07:04:30 pm »
@2:38 You can see a bug heading to your ear
PS: Please don't get yourself killed
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kolbep
Frequent Contributor
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Re: My First Video Blog - Repairing a TV
«
Reply #5 on:
October 21, 2012, 07:07:47 pm »
Well Spotted. I wonder if the bug is still in my ear.
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www.ShoutingElectronics.com
Don't just talk about Electronics, SHOUT ABOUT IT! Electronics Blog Site and Youtube Channel
Jad.z
Regular Contributor
Posts: 83
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Re: My First Video Blog - Repairing a TV
«
Reply #6 on:
October 21, 2012, 07:38:52 pm »
Quote from: kolbep on October 21, 2012, 07:07:47 pm
Well Spotted. I wonder if the bug is still in my ear.
Don't worry, it must've been zapped dead.
«
Last Edit: October 21, 2012, 07:41:39 pm by Jad.z
»
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SeanB
Super Contributor
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Re: My First Video Blog - Repairing a TV
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Reply #7 on:
October 21, 2012, 08:12:04 pm »
Har!
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