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Search: Posts Made By: stj
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 03:07 AM
Replies: 6
Views: 111
Posted By stj
Re: Eprom programmer suggestion.

the tl866 comes with the isp cable, but not all chips can be flashed on the board - it depends on the actual board.
i wouldnt know about clips, i have a generic $2 chinese one - it does it's job.
Forum: General Electronics Technical Discussion Yesterday, 12:49 PM
Replies: 156
Views: 4,099
Posted By stj
Re: Running a microcontroller in car - power supply aspects

probably because of the pullup resistors
Forum: Equipment Usage, Soldering, Techniques, and Reviews Yesterday, 12:46 PM
Replies: 2
Views: 53
Posted By stj
Re: Oscilloscope Opinion

no way in hell
1200 for a 200MHz monochrome portable is bullshit - i wouldnt pay 100 for it.

if your on a bench, you can get a new 4channel modern scope from rigol or siglent for under a third of...
Forum: General Computer & Tech Discussion Yesterday, 12:42 PM
Replies: 4,462
Views: 686,167
Posted By stj
Re: best cheap/free scores 1.1

the 3d tv's used an IR led to transmit framesync
Forum: BIOS Requests ONLY! Yesterday, 12:41 PM
Replies: 47
Views: 4,545
Posted By stj
Re: Lenovo Unlock Dxe Driver Bios Collection

if the laptop has a switch on the base/cover you need to keep it pressed.
Forum: General Computer & Tech Discussion Yesterday, 10:27 AM
Replies: 4,462
Views: 686,167
Posted By stj
Re: best cheap/free scores 1.1

no,
i had(still have) some of those, they work well with crt's that run at 120Hz or better - preferably interlaced.
if the refresh is any lower they flicker like a bastard and give you a headache....
Forum: BIOS Requests ONLY! 05-31-2020, 07:57 AM
Replies: 2
Views: 65
Posted By stj
Re: Supervisor password on Lenovo T490 and T490s

that wont work,
look here:
https://www.badcaps.net/forum/showthread.php?t=81573
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-29-2020, 03:45 PM
Replies: 6
Views: 111
Posted By stj
Re: Eprom programmer suggestion.

and you DO want to spend the extra for the black edition, the aries chipsocket is 1000x better than the green ones!
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-29-2020, 11:22 AM
Replies: 6
Views: 111
Posted By stj
Re: Eprom programmer suggestion.

look at the TL866II+
it can program down to 1.8v and is often updated.
http://www.xgecu.com/EN/TL866_main.html
https://www.aliexpress.com/item/32992209964.html
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-28-2020, 11:05 AM
Replies: 6
Views: 83
Posted By stj
Re: Sad tale of a PS4 - no video output

Game are a place to avoid anyway,
there are lots of vids of people buying "reCONditioned" consoles from them and then doing teardowns.
tronicsfix has done several.
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-28-2020, 06:33 AM
Replies: 6
Views: 83
Posted By stj
Re: Sad tale of a PS4 - no video output

her contract is from the place of purchase - if she got it from a store then that's where to take it back.
people must not tolerate any bullshit from these companies.
Forum: Troubleshooting Audio Equipment 05-28-2020, 03:51 AM
Replies: 135
Views: 18,614
Posted By stj
Re: Yamaha Electric Piano CLP550 no keyboard output

you can get a pack of 27c040's from ebay/ali-express,
and a €40 programmer that's really good.
https://www.aliexpress.com/item/33018288982.html

or the one with a better socket - if your going to...
Forum: General Capacitor Questions & Issues 05-26-2020, 05:36 PM
Replies: 6
Views: 184
Posted By stj
Re: Need help finding specific capacitor

so was it you that baked them? i see all that flux!! :)
Forum: Troubleshooting Power Supplies and Power Supply Design 05-26-2020, 05:32 PM
Replies: 6
Views: 121
Posted By stj
Re: Sonos Play 3 Power Supply

you need to check the rectifier, cut/scrape away all that carbon, and replace that jumper that almost touches with an insulated one - preferably with a curve in it to clear the other rectifier...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-26-2020, 05:29 PM
Replies: 14
Views: 240
Posted By stj
Re: Laminator blows fuses and trips the mains - but not when on my ispolation transfo

lol
and a good place for a ceramic terminal block and bootlace-ferules!
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-26-2020, 10:50 AM
Replies: 14
Views: 240
Posted By stj
Re: Laminator blows fuses and trips the mains - but not when on my ispolation transfo

a lot of these things use a halogen lamp inside a metal roller, the cold inrush is huge!
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-26-2020, 08:27 AM
Replies: 14
Views: 240
Posted By stj
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-25-2020, 11:39 AM
Replies: 11
Views: 263
Posted By stj
Re: Beginner, practicing to unsolder on a lead free xbox 360 board, it is hell.

nothing wrong with lead-free solder, i'v used it for years.
as long as it's not shit(same applies to leaded solder) and your iron is ajustable, it's fine.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-25-2020, 06:56 AM
Replies: 11
Views: 263
Posted By stj
Re: Beginner, practicing to unsolder on a lead free xbox 360 board, it is hell.

1: your soldering iron is too hot - set for 300(lead solder) or 350(lead-free).
2: to make wick work better add flux to it - the powder in it is crap.

if your iron is too hot you just burn the...
Forum: General Electronics Technical Discussion 05-24-2020, 10:43 AM
Replies: 156
Views: 4,099
Posted By stj
Re: Running a microcontroller in car - power supply aspects

hell no,
start with 6502 - get yourself a commodore64.
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-19-2020, 01:47 PM
Replies: 2
Views: 126
Posted By stj
Re: Waylens Horizon Dash Cam battery

it's lithium-polymer,
the first number is probably the size in cm/mm

they are sold by size - you need to unrap the tape and keep the protection board hidden under it.
is that one bad though - it...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-19-2020, 07:45 AM
Replies: 13
Views: 329
Posted By stj
Re: Nintendo Switch component identification

vince doesnt have a clue about electronics!! :D
Forum: Other Devices with Bad Capacitors 05-18-2020, 03:30 AM
Replies: 27
Views: 6,877
Posted By stj
Re: Refrigerator Control Board WPW10310240

i would have removed that connector, to see if any more damage is hiding under it,
then replaced any missing copper with wires probably using the remaining lengths from the caps.

but more...
Forum: General Electronics Technical Discussion 05-16-2020, 04:54 PM
Replies: 4
Views: 187
Posted By stj
Forum: General Electronics Technical Discussion 05-16-2020, 04:22 PM
Replies: 4
Views: 153
Posted By stj
Re: Help identifying component manufature.

no, microchip is inverted in a circle.

i'v seen this logo - it is a company begining with M but i cant remember the name.
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