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Search: Posts Made By: sam_sam_sam
Forum: Troubleshooting Power Supplies and Power Supply Design 05-14-2022, 10:30 AM
Replies: 12
Views: 319
Posted By sam_sam_sam
Re: Power Man ip-p300bn7-2 blown

Great repair good work one more that did not end up in the landfill
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-14-2022, 05:41 AM
Replies: 8
Views: 125
Posted By sam_sam_sam
Re: new OS on a Sonim XP5s phone

I personally do not buy phone or tablet on eBay except for maybe trying to repair one that I already have that is having issues that I might be able to fix for the reason that you mentioned in your...
Forum: General Electronics Technical Discussion 05-14-2022, 05:06 AM
Replies: 8
Views: 113
Posted By sam_sam_sam
Re: Ota locals converter box suggestion.

Are you looking for something like this

https://www.ebay.com/itm/275311046771?epid=2255395244&hash=item4019d13073:g:ASsAAOSwgnZifuXN

Back in the day when they went digital tv the converter...
Forum: General Electronics Technical Discussion 05-14-2022, 04:48 AM
Replies: 221
Views: 17,596
Posted By sam_sam_sam
Re: Here is a good used source for 18650 batteries

Here is another offer from Battery Hookup

If you need sub c batteries for power tools

https://batteryhookup.com/products/12x-ni-cd-sub-c-cells-from-drill-packs

I just bought some because I...
Forum: Troubleshooting Power Supplies and Power Supply Design 05-14-2022, 04:19 AM
Replies: 16
Views: 172
Posted By sam_sam_sam
Re: equivalent for HT3582DM

Here is an alternative to repairing this unit

I have used this type of charger and they work pretty good if can find one that is built very good
...
Forum: Troubleshooting Power Supplies and Power Supply Design 05-14-2022, 04:05 AM
Replies: 16
Views: 172
Posted By sam_sam_sam
Re: equivalent for HT3582DM

Where did you buy them from can you post a link to them
Forum: General Electronics Technical Discussion 05-14-2022, 03:14 AM
Replies: 6
Views: 123
Posted By sam_sam_sam
Re: Power supply noisy with aggressive PWM

I would start with a low value UF capacitor and work my way up in value until I get the results that you are looking for
Forum: Troubleshooting Power Supplies and Power Supply Design 05-14-2022, 03:04 AM
Replies: 16
Views: 172
Posted By sam_sam_sam
Re: equivalent for HT3582DM

Here is a website link that has a Reverse Engineered Schematics

https://danyk.cz/reverz30_en.html
Forum: Troubleshooting Power Supplies and Power Supply Design 05-14-2022, 02:32 AM
Replies: 8
Views: 191
Posted By sam_sam_sam
Re: identify torroidal transformer amperage

Do you still have the device that this came out of it should have data plate on it so you can get a rough estimate of it amperage

One note I would first start by putting a rectifier diode assembly...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-14-2022, 01:16 AM
Replies: 2
Views: 53
Posted By sam_sam_sam
Re: Can you recognize this chip?

This device is extremely difficult to repair in the past I have tried to repair them if it is not an issue with the solar panel wiring or a capacitor being bad or something similar like a resistor...
Forum: Troubleshooting Power Supplies and Power Supply Design 05-13-2022, 03:33 PM
Replies: 9
Views: 316
Posted By sam_sam_sam
Re: CyberPower 1350AVR and 1500AVR - Repair

Thanks for the write up about the the repair issue that you were having with these units

Batteries should be wired in series to get 24 volts now for the one that 12.something pre battery it just...
Forum: Troubleshooting Power Supplies and Power Supply Design 05-13-2022, 02:59 PM
Replies: 14
Views: 361
Posted By sam_sam_sam
Re: welder zimmer 201 power control board

I would give each circuit board a good look over for dull or cracked and bad soldering joints
( I once had a battery charger controller board on big magnet that picked up metal plates that had very...
Forum: General Electronics Technical Discussion 05-13-2022, 12:34 PM
Replies: 1
Views: 106
Posted By sam_sam_sam
Re: Need advice - hot tweezers under 300 usd

Do you want something that is micro in size because you can find a large version for probably less money and have different options for the tips

Thanks for wanting advice for hot tweezers I found...
Forum: Troubleshooting Computer Displays 05-13-2022, 11:42 AM
Replies: 101
Views: 40,911
Posted By sam_sam_sam
Re: Dell 2408WFPb / 2408WFP - No Power

Yea I know I am responding to a very old post but when I read this I had to respond to the comment

I have used this method before but I recently saw a YouTube video where this woman use the diode...
Forum: Troubleshooting Computer Displays 05-13-2022, 11:30 AM
Replies: 4
Views: 148
Posted By sam_sam_sam
Re: VisionQuest 24" monitor: works sometimes

When you open it up look at the area around the switching power supply transformer there should be a switching power supply regulator of some type there should be some very low value capacitor under...
Forum: Troubleshooting Computer Displays 05-13-2022, 11:18 AM
Replies: 4
Views: 180
Posted By sam_sam_sam
Re: ViewSonic VA1703wb - Hot Area - Can I Replace FSDM0565R with an FSQ0456R

Like I said earlier in the PM that I sent you need a ring tester to test the switching transformer to see if it is shorted or it could be that the switching power supply regulator just failed because...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-13-2022, 10:59 AM
Replies: 10
Views: 356
Posted By sam_sam_sam
Re: Glueing Two Sided Flex Ribbon,Jaguar XJS Instrument cluster.

If you post some pictures of the speedometer I might be able to help you with it but I have to see what you have the more detail on the picture the better

I have repaired one on my 1995 Ford Range...
Forum: General Electronics Technical Discussion 05-13-2022, 12:47 AM
Replies: 6
Views: 123
Posted By sam_sam_sam
Re: Power supply noisy with aggressive PWM

I have to ask are you using a switching power supply to power it if so you might be causing them to fight each other with switching signals just a thought
Forum: General Electronics Technical Discussion 05-13-2022, 12:39 AM
Replies: 3
Views: 169
Posted By sam_sam_sam
Re: question for equivalent igbt

You will have to check the data sheets for both of them or you will have to make a circuit board if the pin outs are different if all other specks are the same it should work

If the website page...
Forum: General Electronics Technical Discussion 05-11-2022, 05:59 PM
Replies: 3
Views: 169
Posted By sam_sam_sam
Re: question for equivalent igbt

You can find them here

https://www.mouser.com/ProductDetail/onsemi/FGD3245G2-F085C?qs=l7cgNqFNU1iSRxfuRgBh9g%3D%3D

Just select the country from where you live and see if they have them in stock
Forum: Troubleshooting Computer Displays 05-11-2022, 07:03 AM
Replies: 4
Views: 180
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion 05-10-2022, 11:09 AM
Replies: 6
Views: 152
Posted By sam_sam_sam
Re: RF 3 way switch

This happened to a few times where the picture and the description do not match and they sent me what the description says or sometimes it was what the picture was and I always get a refund from EBay...
Forum: General Electronics Technical Discussion 05-09-2022, 06:57 PM
Replies: 3
Views: 361
Posted By sam_sam_sam
Re: SealSunny battery M150 ( only ) load testing machine review

Do you have any idea what that would be
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-09-2022, 07:26 AM
Replies: 106
Views: 18,378
Posted By sam_sam_sam
Re: Post your worthless and/or pointless repairs

It is amazing what a little duck tape will fix and it was not even meant for that purpose WOW:smile:
Forum: General Electronics Technical Discussion 05-08-2022, 10:36 AM
Replies: 3
Views: 361
Posted By sam_sam_sam
Re: SealSunny battery M150 ( only ) load testing machine review

Well this battery tester has one big issue with computer interface and it use Lab-Veiw and it expensive to buy the product key over $500.00 which is not worth the money for what this device would...
Showing results 1 to 25 of 500

 
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