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Search: Posts Made By: stj
Forum: General Electronics Technical Discussion Today, 09:57 AM
Replies: 6
Views: 98
Posted By stj
Re: Ni-Cd Power Supply Resistor

for that money you could get a B6 clone!
Forum: General Computer & Tech Discussion Today, 09:53 AM
Replies: 5,094
Views: 887,925
Posted By stj
Re: best cheap/free scores 1.1

nice!
IMO 1.1 version is the best. :)
Forum: General Electronics Technical Discussion Today, 04:04 AM
Replies: 6
Views: 98
Posted By stj
Re: Ni-Cd Power Supply Resistor

14ohms
and it's going to generate 9w of heat!
(so maybe consider a chinese intelligent charging module instead!)
Forum: Troubleshooting Game Consoles & Other Weird Devices Today, 03:46 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

it's probably to make it seem unrepairable.
now wouldnt it be funny if you found them in aliexpress - "surplus" from the manufacturing plant!!
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 09:08 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

but you have no silicon wafer - there is no semiconductor on the heatsink - never was!!
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 06:50 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

thats a fucking fake!! :tongue:

take a blade and scrape the resin away between the outer pins - it's gonna reveal a bus-bar!!!
Forum: General Capacitor Questions & Issues 09-23-2021, 03:54 PM
Replies: 8
Views: 214
Posted By stj
Re: QDI socket 370 motherboard Bad caps or dirt?

FK are purple with gold print.
as for leaking bungs - well that describes old FC's pretty well.

dont get me wrong - i still like panasonics - just not old ones :)
Forum: General Capacitor Questions & Issues 09-23-2021, 07:45 AM
Replies: 8
Views: 214
Posted By stj
Re: QDI socket 370 motherboard Bad caps or dirt?

not FC, they would be a purple/blue sleeve.

personally i would replace them, but only because i had a ruby MCZ explode all over me once simply because the board had been unused for years and it...
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-22-2021, 04:37 PM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

put the part in a vise and bend the tab so the resin cracks away from it - see if it actually has a square of silicon in it.
Forum: General Capacitor Questions & Issues 09-22-2021, 04:26 PM
Replies: 13
Views: 308
Posted By stj
Re: Aracde Chassis Cap Replacement Help

240v monitors and tv's used a switching psu to obtain the B+ and a few other voltages for the mcu, audio amp etc.

the old arcade monitors with 100/120/128v input often use a linear regulator...
Forum: General Capacitor Questions & Issues 09-21-2021, 08:25 AM
Replies: 13
Views: 308
Posted By stj
Re: Aracde Chassis Cap Replacement Help

it's a 100v japanese monitor.
i had a dozen of the 14" version once.

and a full isolation transformer is mandatory even if you have a 100v supply.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 09-20-2021, 09:03 AM
Replies: 88
Views: 12,661
Posted By stj
Re: Need software for Intelligent universal programmer lk48

yes, but when you install it it creates 2 seperate exe files.
i'll check it again later - i'll have to setup a damned windows laptop first though.
not something i normally have here. :)
Forum: General Capacitor Questions & Issues 09-20-2021, 08:59 AM
Replies: 36
Views: 3,350
Posted By stj
Re: 3300uf 6.3v for xbox

find my thread about fitting polymers - it has lots of links to aliexpress.
Forum: General Capacitor Questions & Issues 09-20-2021, 07:56 AM
Replies: 36
Views: 3,350
Posted By stj
Re: 3300uf 6.3v for xbox

yes, but using 5 polymers is better.
and the 3300uf caps are tall - so dont put one in the way of the heatsink clip
Forum: General Electronics Technical Discussion 09-20-2021, 07:20 AM
Replies: 23
Views: 501
Posted By stj
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-20-2021, 07:18 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

gotta say, if i was designing an injector driver then those would be darlingtons
Forum: General Electronics Technical Discussion 09-19-2021, 03:41 PM
Replies: 23
Views: 501
Posted By stj
Re: A 2200lm 7057 LED car lamp...

it's an indicator lamp for a car.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 09-19-2021, 10:49 AM
Replies: 4
Views: 165
Posted By stj
Re: ZD-915 vacuum pump motor mount service alert

the fans are always shit,
and they are 12v fans driven from the 20v pump supply via a pair of resistors.

i replaced mine with a high power sunon fan driven with 9v from a buck convertor.
i opted...
Forum: General Computer & Tech Discussion 09-19-2021, 10:45 AM
Replies: 5,094
Views: 887,925
Posted By stj
Re: best cheap/free scores 1.1

best thing to do with the sign is desolder the microcontroller / pia chip and fit an ESP module - then you can control it via wifi :)
Forum: General Electronics Technical Discussion 09-19-2021, 09:43 AM
Replies: 23
Views: 501
Posted By stj
Re: A 2200lm 7057 LED car lamp...

these are designed for a 50/50 duty cycle remember
Forum: Equipment Usage, Soldering, Techniques, and Reviews 09-18-2021, 09:24 PM
Replies: 88
Views: 12,661
Posted By stj
Re: Need software for Intelligent universal programmer lk48

are you using the XP version and not the UXP one?
the patch is only for the 48XP software.
Forum: General Capacitor Questions & Issues 09-18-2021, 02:27 PM
Replies: 13
Views: 308
Posted By stj
Re: Aracde Chassis Cap Replacement Help

what monitor is it?

btw, it's not going to be 11mm pitch, it sounds like a 10mm snap-in package.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 09-18-2021, 10:47 AM
Replies: 45
Views: 20,218
Posted By stj
Re: [FAQ] Atten 858d problem S-E (or 5-E) or stuck in 498'C.

check the cable for breaks if it's old - i'v seen that lots of times on soldering irons.
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-18-2021, 08:59 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

actually some of us have experience with those specific batteries.
they will last about 20years.
then all fucking hell with break loose - literally!
https://www.youtube.com/watch?v=OT9CWbK-2HU
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-18-2021, 08:46 AM
Replies: 76
Views: 1,382
Posted By stj
Re: Catapillar ECU repair, need N548AB replacement?

easy to find out - decap one using nitromores paint stripper or some other resin desolving substance.
Showing results 1 to 25 of 500

 
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