Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
07-03-2022, 02:12 PM
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Replies: 12
Views: 223
Re: Asus P2B | Slot 1 + Pentium II | no power
From the numbers you provided of your meter it has at least three digits so you can just look for the lowest possible ohm reading on the board...
Would be easier with more digits but maybe still...
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Forum: Troubleshooting Power Supplies and Power Supply Design
07-03-2022, 02:10 PM
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Replies: 12
Views: 160
Re: Delta DPS-150GB PSU failure
Yes remove all small caps and test them but just a note: let them cool down to room temperature before measuring otherwise the data will be better than in reality (exactly like in the proposed heat...
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Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
07-03-2022, 11:48 AM
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Replies: 12
Views: 223
Re: Asus P2B | Slot 1 + Pentium II | no power
Yes, that means the problem is somewhere else.
If you have a high resolution multimeter and sharp probes you can sometimes find the short by looking for the lowest ohms reading.
If not there are...
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Forum: Troubleshooting Power Supplies and Power Supply Design
07-03-2022, 11:31 AM
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Replies: 12
Views: 160
Re: Delta DPS-150GB PSU failure
Replacing all small electrolytic capacitors is certainly a good idea when the unit is 25 years old, it might just fix it.
One way to perhaps confirm that is to heat the unit up to ca 50°C or so, if...
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Forum: Troubleshooting Computer Displays
07-01-2022, 06:50 AM
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Replies: 72
Views: 29,488
Re: W241D (W240D) flickering Problem
+5v is sent from the computer graphics card via the DVI or HDMI cable to power the small i2c chips that contain a eeprom with supported resolutions etc even when the monitor has no external power....
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Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
07-01-2022, 02:49 AM
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Replies: 12
Views: 223
Re: Asus P2B | Slot 1 + Pentium II | no power
Q9 is not a Mosfet, it is a Schottky diode
Test it with the multimeters diode test function, you should have a drop of ca 0.2v from pin 3 (anode) to the tab (cathode) and open in the other...
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Forum: General Electronics Technical Discussion
07-01-2022, 01:37 AM
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Replies: 10
Views: 233
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Forum: Equipment Usage, Soldering, Techniques, and Reviews
06-30-2022, 01:02 PM
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Replies: 154
Views: 18,885
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Forum: General Computer & Tech Discussion
06-30-2022, 11:33 AM
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Replies: 5,414
Views: 1,123,807
Re: best cheap/free scores 1.1
Yes they do look awesome with all those tubes!
I was near to get one but then got my senses together and realized where the heck was I going to have room for that big thing, it's crowded as it is...
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Forum: Equipment Usage, Soldering, Techniques, and Reviews
06-30-2022, 11:28 AM
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Replies: 154
Views: 18,885
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Forum: General Electronics Technical Discussion
06-30-2022, 11:01 AM
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Replies: 6
Views: 107
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Forum: General Electronics Technical Discussion
06-30-2022, 10:15 AM
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Replies: 6
Views: 107
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Forum: General Electronics Technical Discussion
06-30-2022, 08:59 AM
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Replies: 30
Views: 264
Re: flourescent ballast resistance
It requires a ballast to work, otherwise it will burn out.
In your picture on the lamp it is written Osram Dulux S model 827, it has a G23 base.
From the datasheet we can see it is a 11W lamp...
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Forum: General Computer & Tech Discussion
06-30-2022, 03:55 AM
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Replies: 5,414
Views: 1,123,807
Re: best cheap/free scores 1.1
I could not find any specs either, only the output voltages.
Might be best to not start this up if the caps have not been reformed for 50 or so years, the series was introduced in 1958 according to...
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Forum: General Electronics Technical Discussion
06-29-2022, 05:40 AM
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Replies: 6
Views: 116
Re: What is this "processor"
Hello, please see this FAQ for how to insert photos in your posts:
https://www.badcaps.net/forum/showthread.php?t=1868
Have you checked the four discrete transistors Q1 > Q4 on the board to make...
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Forum: General Electronics Technical Discussion
06-29-2022, 05:21 AM
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Replies: 30
Views: 264
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Forum: Troubleshooting Computer Displays
06-29-2022, 04:31 AM
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Replies: 21
Views: 8,122
Re: Dell P2210f no power
Your photos are not usable, here is what I used instead: https://www.badcaps.net/forum/showpost.php?p=599033&postcount=30
I made one omission in my previous post: 12v does not seem to be for that...
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Forum: Equipment Usage, Soldering, Techniques, and Reviews
06-28-2022, 06:20 AM
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Replies: 1,118
Views: 185,860
Re: ESR meter upgrades
You can see a photo of the top of the encoder in my original build photo way back in this thread: https://www.badcaps.net/forum/attachment.php?attachmentid=137396&d=1468518476
Here is how the bottom...
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Forum: General Electronics Technical Discussion
06-28-2022, 04:46 AM
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Replies: 18
Views: 253
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Forum: Troubleshooting Computer Displays
06-28-2022, 02:30 AM
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Replies: 21
Views: 8,122
Re: Dell P2210f no power
I would not buy from that seller because he mixed up the type of diode in the title of the AD vs the description!
"Ultra Fast Recovery Diode" vs "Standard General Purpose"
-Typical Chinese crap,...
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