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Search: Posts Made By: stj
Forum: Troubleshooting Game Consoles & Other Weird Devices Today, 11:12 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

good pics of the psu
Forum: General Capacitor Questions & Issues Today, 01:55 AM
Replies: 2
Views: 51
Posted By stj
Re: Need help Finding replacement capacitor

27nf polyester or poypropylene film.
Forum: Troubleshooting Game Consoles & Other Weird Devices Today, 01:45 AM
Replies: 9
Views: 93
Posted By stj
Re: Micronta Talking Alarm Clock Full Recap

it uses a custom databus for the roms - there are replacement projects online.
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 12:46 PM
Replies: 9
Views: 93
Posted By stj
Re: Micronta Talking Alarm Clock Full Recap

nice, i wonder if the sample rom has been dumped!
Forum: Equipment Usage, Soldering, Techniques, and Reviews Yesterday, 12:44 PM
Replies: 1,036
Views: 134,537
Posted By stj
Re: ESR meter upgrades

you can reprogram the stc micro on a tc1 - it still crashes out of sleep mode though.
Forum: General Capacitor Questions & Issues Yesterday, 08:35 AM
Replies: 7
Views: 308
Posted By stj
Re: Polymer caps and retro video games

well after 40 years any cap will fail - the rubber bung will rot even if nothing else happens.
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 08:33 AM
Replies: 9
Views: 93
Posted By stj
Re: Micronta Talking Alarm Clock Full Recap

well even 1uf electrolytic caps are being phased out because film caps are small enough to replace them.

what chips are in that clock?
spo250? spo256? texas tms5110??
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 08:13 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

i didnt say that, i said get the other xbox and fix it - as a spare xbox!!
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 08:12 AM
Replies: 9
Views: 93
Posted By stj
Re: Micronta Talking Alarm Clock Full Recap

.47? use a polyester cap - 470n
Forum: General Electronics Technical Discussion 05-16-2021, 08:14 AM
Replies: 9
Views: 126
Posted By stj
Re: LED Project ... LARGE SCALE

how does the pickup supply the trailer brakes??
Forum: General Capacitor Questions & Issues 05-16-2021, 01:57 AM
Replies: 7
Views: 308
Posted By stj
Re: Polymer caps and retro video games

i meant under 470 doesnt need polymers - mostly because you can use tantalum.
Forum: General Computer & Tech Discussion 05-16-2021, 12:12 AM
Replies: 562
Views: 177,922
Posted By stj
Re: The ghetto mod thread

3d printing does not count,
it's fabrication - not modification.
Forum: General Electronics Technical Discussion 05-15-2021, 11:51 PM
Replies: 17
Views: 277
Posted By stj
Re: Hot Air rework station

the restrictor is probably to give the air time to heat up.
about the temp.
everybody has their own idea about how far from the target you hold the wand.
so everybody is going to get a different...
Forum: General Electronics Technical Discussion 05-15-2021, 01:13 PM
Replies: 9
Views: 126
Posted By stj
Re: LED Project ... LARGE SCALE

you can already get light bars that do all that and more for breakdown trucks and emergency vehicles.
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-15-2021, 06:17 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

no, dont replace them - highly unlikely they are bad.
Forum: General Electronics Technical Discussion 05-14-2021, 10:30 AM
Replies: 17
Views: 277
Posted By stj
Re: Hot Air rework station

funny enough, i am also waiting for a pi pico that i ordered months ago!!
as for the angled attachment - i imagine it's to stay clear of the microscope.
Forum: General Capacitor Questions & Issues 05-14-2021, 06:26 AM
Replies: 7
Views: 308
Posted By stj
Re: Polymer caps and retro video games

arcade boards should not use polymer because most of the caps are in the audio circuits.

playstation can use tantalum instead of electrolytics on the system board - the psu needs electrolytics....
Forum: General Electronics Technical Discussion 05-14-2021, 05:04 AM
Replies: 17
Views: 277
Posted By stj
Re: Hot Air rework station

rossman actually no longer sells the quick because the company fucked him around with regard to pricing and delivery.
Forum: General Electronics Technical Discussion 05-14-2021, 01:47 AM
Replies: 17
Views: 277
Posted By stj
Re: Hot Air

rossmann reviewed a really good one.
https://www.youtube.com/watch?v=wYCmU6jMLo8


he sells them now.

https://store.rossmanngroup.com/atten-862.html
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-14-2021, 01:44 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

you could also use TME in poland
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-13-2021, 12:09 PM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

the 5 spaces in front of the cpu are all connected in parallel. :)

just do the psu and the ones in front of the cpu for now.
then see if it runs.

btw, dont bother with a mod-chip unless you...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-13-2021, 10:17 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

firstly, if you can get an xbox for €5, do it - and fix both!
99% of xbox faults are capacitor related.

as for your board.
you have space for 5 caps at the cpu,
so fit 1500uf polymers....
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-13-2021, 05:39 AM
Replies: 19
Views: 467
Posted By stj
Re: Xbox has low 12v, cause?

you need a full recap, your 3.3v is high too.

https://www.badcaps.net/forum/showthread.php?t=78134
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-12-2021, 09:36 AM
Replies: 1,036
Views: 134,537
Posted By stj
Re: ESR meter upgrades

if it's a large button and not a 5mm one then a rotary fits the pads.
i'v put a rotary on a tc1

essential - no, but it's nice to have for extra modes.
tc1 has issues btw, you want to pull the...
Forum: General Electronics Technical Discussion 05-09-2021, 02:04 PM
Replies: 2
Views: 86
Posted By stj
Re: Cheapest waterproof RF coaxial connector?

F are not 50ohm, they have no center, it's down to the cable
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