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Search: Posts Made By: stj
Forum: Troubleshooting Computer Displays Today, 08:01 PM
Replies: 13
Views: 435
Posted By stj
Re: LG L246WH No Backlight

sounds to me like a poor connection between the invertor and tubes - the slap was the givaway.
Forum: Troubleshooting Computer Displays Today, 01:02 PM
Replies: 27
Views: 716
Posted By stj
Re: Benq G2420HD wire identification/assignment & LED conversion

i would expect a lot for that price - monitors are cheap now.
the reviewers should tell people where the cable came from and what video settings they use.
a lot of idiots push the framerate as high...
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 12:53 PM
Replies: 69
Views: 934
Posted By stj
Re: DPS5020 dual power supply build

i wouldnt bother, the Q of the transformer will limit the inrush.
Forum: Troubleshooting Computer Displays Today, 05:13 AM
Replies: 27
Views: 716
Posted By stj
Re: Benq G2420HD wire identification/assignment & LED conversion

some people have tried putting a bit of foam between the connection and frame so it presses when it's assembled,
but one of your pictures looks like the glass is cracked??

btw, i know what you...
Forum: Troubleshooting Power Supplies and Power Supply Design Today, 04:56 AM
Replies: 14
Views: 217
Posted By stj
Re: iMac G3 Lime Green (M5521) power supply

no, what you do is isolate the B+ line between the psu section and the flyback,
it's the 100v(or more) feed - it usually goes through an inductor so it's simple to lift one end.
if you do that, put...
Forum: General Capacitor Questions & Issues Today, 04:47 AM
Replies: 12
Views: 238
Posted By stj
Re: Capacitor(s) Identification

blue are general purpose axial electrolytics from BC / Vishay
Forum: General Capacitor Questions & Issues Yesterday, 02:55 AM
Replies: 14
Views: 138
Posted By stj
Re: Question about SMD Crystal and proper capacitor placement / pin connections

they work fine with tantalum caps.
i dont like ceramics for that type of use anyway
Forum: General Electronics Technical Discussion Yesterday, 02:43 AM
Replies: 4
Views: 110
Posted By stj
Re: How hard can I drive an IR Blaster?

well most of the problem is going to be losses from filters & stuff like that, is this related to 3d glasses??
Forum: General Electronics Technical Discussion 07-15-2019, 03:22 PM
Replies: 4
Views: 110
Posted By stj
Re: How hard can I drive an IR Blaster?

forget it, those are just regular leds.

if your after secret lighting for camera's you need the IR version of the leds used in flashlights.
Forum: Troubleshooting Game Consoles & Other Weird Devices 07-15-2019, 02:43 AM
Replies: 34
Views: 443
Posted By stj
Re: Turn 100v X-box 360 adapter into 250v

you use the tweezers to hold the sides, not the contacts.

if it's a bigger package - like a chip, then melt the solder and flip the package by slipping the tip of a knife under the edge that has...
Forum: General Electronics Technical Discussion 07-14-2019, 03:05 PM
Replies: 3
Views: 100
Posted By stj
Re: USB Voltage and Current Tester Capacity What do you think about this

Ruideng (RD-Tech) ships stuff real fast too!!
Forum: Troubleshooting Computer Displays 07-14-2019, 02:55 PM
Replies: 62
Views: 843
Posted By stj
Re: Help with dead Commodore 1802

you can lift L808 to isolate the audio stage.

im starting to wonder if the transformer could be breaking down, but few people have the equipment to check one,
(although i do)
Forum: General Capacitor Questions & Issues 07-14-2019, 07:10 AM
Replies: 8
Views: 141
Posted By stj
Re: Help with capacitor substitution for a DVR

*if* the psu managed to handle MCZ i wonder if it would run with cheap polymers???
Forum: Troubleshooting Power Supplies and Power Supply Design 07-14-2019, 07:07 AM
Replies: 14
Views: 217
Posted By stj
Re: iMac G3 Lime Green (M5521) power supply

some shiny resoldered joints there - and some shit ones.
which did you do??
Forum: General Capacitor Questions & Issues 07-14-2019, 01:43 AM
Replies: 8
Views: 141
Posted By stj
Re: Help with capacitor substitution for a DVR

was the dvr new?
i cant imagine MCZ in a psu.
Forum: General Computer Discussion 07-14-2019, 01:37 AM
Replies: 14
Views: 186
Posted By stj
Forum: Troubleshooting Game Consoles & Other Weird Devices 07-13-2019, 12:44 PM
Replies: 34
Views: 443
Posted By stj
Re: Turn 100v X-box 360 adapter into 250v

when the glue warms up it gets soft,
i used to use tweezers to twist the part loose after the solder melts.
Forum: General Computer Discussion 07-13-2019, 02:07 AM
Replies: 28
Views: 873
Posted By stj
Re: I'm getting windows 10

m$ knows a hell of a lot more that that, inc what you look like if you have a web-cam and what your saying in the room
(and what you watch on tv or listen to on the radio - they even have a...
Forum: Troubleshooting Computer Displays 07-12-2019, 09:46 AM
Replies: 62
Views: 843
Posted By stj
Re: Help with dead Commodore 1802

so a refresh of the facts,
with the coil out and just the psu & audio sections running your still burning resistors??
Forum: Troubleshooting Game Consoles & Other Weird Devices 07-12-2019, 03:04 AM
Replies: 34
Views: 443
Posted By stj
Re: Turn 100v X-box 360 adapter into 250v

the glue is because it was wave-soldered,
philips used to make all their tv's that way.
Forum: General Capacitor Questions & Issues 07-11-2019, 06:09 PM
Replies: 14
Views: 138
Posted By stj
Re: Question about SMD Crystal and proper capacitor placement / pin connections

or use a 1117 - those cost penny's - literally.
i got 70 of them for a $ from china in a kit - 7 values, 10 of each.
Forum: General Capacitor Questions & Issues 07-11-2019, 11:56 AM
Replies: 10
Views: 194
Posted By stj
Re: First Timer - Mystery capacitor identification

silver one is HD series, cant remember the make but i'v seen them in playstation2's a lot.
Forum: General Computer Discussion 07-11-2019, 05:48 AM
Replies: 28
Views: 873
Posted By stj
Re: I'm getting windows 10

i just installed FreeDOS 1.3 on a 64bit dual-core machine.
works great, no bullshit, no spyware.
it even has a package manager now!!
Forum: General Capacitor Questions & Issues 07-11-2019, 05:46 AM
Replies: 14
Views: 138
Posted By stj
Re: Question about SMD Crystal and proper capacitor placement / pin connections

read the datasheet for the chip.

but in short,
keep it close to the chip - short tracks,
keep the 2 tracks of equal length,
keep the caps as close to the crystal as possible.
Forum: General Computer Discussion 07-10-2019, 02:51 AM
Replies: 3,806
Views: 619,767
Posted By stj
Re: best cheap/free scores 1.1

that thing looks awsome - you could probably lease it to film production company's!!
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