I attempt to repair an ATX power supply, I correct a few issues with it, but it does not resolve its operation problems (I'm not very good with switch mode power supplies).
Test equipment appeal: https://www.youtube.com/watch?v=cDFThnxqDWU #ifixstuff #thedefpom #electronicsrepair #consumerelectronics ========================================== Some Of My Electronics Tools (video and purchase links) ==========================================
I was setting up an LM317 adjustable voltage regulator circuit to replace an old 1.35V Mercury D cell that was inside a Fluke 540B Thermal Transfer Standard.
I noticed that the output voltage was only stable when the input was below 7V, above that and its output increased with increasing input voltage.
I thought I would do a little video showing what I found, it may be helpful to someone that is trying to use the LM317 to build a power supply.
Remember to subscribe and click the Bell Icon to get notifications!
Affiliate links: (Bookmark and buy using them)
Banggood: https://defs.link/?u=5d46ae
Amazon Store: https://www.amazon.com/shop/thedefpomsrepairchannel
Give this a Thumbs Up and share the video with your friends if you liked it.
Donate so I can make more videos for you, see links below, cheers:
Become a Patreon! https://defs.link/?u=fcb3a1
PayPal Donations: https://defs.link/?u=b099ee
Subscribe: https://defs.link/?u=ffa106
My 3D printed replacement test equipment parts on Thingiverse: https://defs.link/?u=0347b1
My website (well, one of them): https://www.TheDefpom.com
My Twitter: https://www.twitter.com/TheDefpom
I upload new videos at the same time each morning (NZ Time) at least 3 times a week, on Monday, Wednesday and Friday at a minimum, if possible I will also do a Live Stream on a Sunday morning, so watch out for those too.
#TheDefpom
#Defpom
#IFixStuff
#Electronics
#Repair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick
...
https://www.youtube.com/watch?v=HxWin6XEYhM
I continue the repairs on the HP 8901B Modulation Analyzer.
I replace the faulty capacitor, adjust power supply voltage, and replace the noisy fan.
I use my Audio Control SA-3050 RTA to measure the noise spectrum and SPL of the fan before and after replacement.
I also do a little bit to calibrate it.
Remember to subscribe and click the Bell Icon to get notifications!
Affiliate links: (Bookmark and buy using them)
Banggood: https://defs.link/?u=5d46ae
Amazon Store: https://www.amazon.com/shop/thedefpomsrepairchannel
Give this a Thumbs Up and share the video with your friends if you liked it.
Donate so I can make more videos for you, see links below, cheers:
Become a Patreon! https://defs.link/?u=fcb3a1
PayPal Donations: https://defs.link/?u=b099ee
Subscribe: https://defs.link/?u=ffa106
My 3D printed replacement test equipment parts on Thingiverse: https://defs.link/?u=0347b1
My website (well, one of them): https://www.TheDefpom.com
My Twitter: https://www.twitter.com/TheDefpom
I upload new videos at the same time each morning (NZ Time) at least 3 times a week, on Monday, Wednesday and Friday at a minimum, if possible I will also do a Live Stream on a Sunday morning, so watch out for those too. #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.
...
https://www.youtube.com/watch?v=VllReFFbzTU
Remember to subscribe !
My oldest sons laptop had an accident, this damaged the hard drive.
This shows me opening the hard drive case to try and repair the drive, and then replacing it and getting OS X to install on the new drive despite the installer having an expired certificate which normally prevents installation of the system.
This is the first part, in part 2 is a teardown and clean, including a teardown of the keyboard and DVD drive
Part 2 is here: https://www.youtube.com/watch?v=Q4NBZbbwlHE.
Please support me so I can make more repair videos: https://www.patreon.com/TheDefpom #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.link/?u=12d498
YR1030 Battery ESR: https://defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: https://defs.link/?u=8eeeba
Bird 43: https://defs.link/?u=4b18f7
Sinadder 3: https://defs.link/?u=2bf1dd
Audio Control SA-3050A RTA: https://defs.link/?u=a04df2
Korad KA3305D: https://defs.link/?u=69090a
PDVS2mini: https://defs.link/?u=869ba4
Valhalla 2703: https://defs.link/?u=06bcfc
Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101
Eakins Microscope: https://defs.link/?u=b0278b https://defs.link/?u=262327
Mustool G600: https://defs.link/?u=b8bc26 https://defs.link/?u=33f0aa
Handheld Equip
...
https://www.youtube.com/watch?v=j69MBX8LlE0
Remember to subscribe !
I modified this mic previously to improve its audio level and quality, but I still wasn't happy enough with it, so this shows me modifying it even more, by adding a small electret mic amplifier to it.
See part 1 here: https://www.youtube.com/watch?v=P0urta7ovPQ
Give this a Thumbs Up if you like it, it helps to grow the channel, also please share the video with your friends to help the channel to grow !
If you feel like donating some money to help fund my purchase of items for the channel please use one of the methods below, cheers !
PayPal Donations: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SDDYPAS9BJ2CE
Patreon: https://www.patreon.com/TheDefpom #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: https://teespring.com/stores/thedefpom
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SPL-1008.
SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498
SDL1020X-E: https://defs.link/?u=a0eccb
Other Equipment
------
KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112e
Quick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81
S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0
EEVBlog BM235: https://defs.link/?u=12d498
YR1030 Battery ESR: https://defs.link/?u=c56527
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: https://defs.link/?u=8eeeba
Bird 43: https://defs.link/?u=4b18f7
Sinadder 3: https://defs.link/?u=2bf1dd
Audio Control SA-3050A RTA: https://defs.link/?u=a04df2
Korad KA3305D: https://defs.link/?u=69090a
PDVS2mini: https://defs.link/?u=869ba4
Valhalla 2703: https://defs.link/?u=06bcfc
Feeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101
Eakins Microscope: https://defs.link/?u=b027
...
https://www.youtube.com/watch?v=1bECoDeTayI
I review the iFixit Manta Precision Bit Set and the iFixit Pro Tech Toolkit, which were both generously given to me for no charge by iFixit, check the links below to go to the iFixit pages for these items.
iFixit Pro Tech Toolkit: https://defs.link/?u=599b62
iFixit Manta Precision Bit Set: https://defs.link/?u=0d0327
Subscribe: https://defs.link/?u=ffa106
Click the Bell Icon to get notifications about my future videos!
Thumbs Up and Share the video with your friends so they get to see the video too!
Affiliate links: (Bookmark and buy using them)
Banggood: https://defs.link/?u=5d46ae
Amazon Store: https://www.amazon.com/shop/thedefpomsrepairchannel
My Merchandise: https://teespring.com/stores/TheDefpom
Test Equipment Repair Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE21HOatpZqBT7XPDF-xVgYp
Electronics & Repair Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE3HC6pRLVhotWsQbshtmLcw
Review & Teardown Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE3BQ0oNHtWTPQ-0QslbrgEb
Mailbag / Postbag Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE1ba-zQlmWqBLqhZPDR6wFj
Electronics Projects Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE3scjKfNCTPedENrGu2zViF
Apple Repair Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE1vu2Hh_8Mg5NhVSWzbPWFD
CB & HAM Radio Videos: https://www.youtube.com/playlist?list=PL2z3V9RkHQE3ki74hMMitH9aRlLa9ZgZx
Donate so I can make more videos for you:
Become a Patreon!: https://defs.link/?u=fcb3a1
PayPal Donations: https://defs.link/?u=b099ee
My website: https://www.TheDefpom.com
My Twitter: https://www.twitter.com/TheDefpom
My Thingiverse for 3D printed replacement test equipment parts: https://defs.link/?u=0347b1
==========================================
Some Of My Electronics Tools (video and purchase links)
==========================================
Boonton
------
4220.
8210: https://defs.link/?u=e1eddc
Fluke
------
8842A:
45: https://defs.link/?u=eac51d
343A: https://defs.link/?u=13c93d
5200A: https://defs.link/?u=a43c99
540B: https://defs.link/?u=0c6bd9
893A.
A90.
HP/Agilent/Keysight
------
4261A: https://defs.link/?u=07ed95
5005A.
5342A 18GHz: https://defs.link/?u=5f7513
6181B: https://defs.link/?u=b12aef
8012B: https://defs.link/?u=ca5764
8648B: https://defs.link/?u=da52a3
8901B: https://defs.link/?u=535835
DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498
E3646A: https://defs.link/?u=128f4a
Marconi
------
2022D.
2955.
TF2103: https://defs.link/?u=61baaa
Rohde & Schwarz
------
SMY: https://defs.link/?u=93514b
CMU200: https://defs.link/?u=8ccd72
Polarad SPN: https://defs.link/?u=2ead82
Siglent
------
SDM3065X: https://defs.link/?u=1ed0fe https:
...
https://www.youtube.com/watch?v=QpgXRKLbZmo