rtstorm
Badcaps Veteran
Last Activity: Today, 05:02 AM
Joined: 02-19-2012
Location: Croatia, Osijek
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If i tighten the resistor screw all the way i got 13-14V on output, but thats the max -
I found some small broken traces near the LM723, and after repair, i get 7V on output with input of 48V, should i calibrate the voltage with the long blue potentiometer with a screwdriver?
And i also accidentally broke the small orange cap at the LM723, is this a crucial component?
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i tried to tighten/loosen the potentiometer but voltage did not change change...Last edited by rtstorm; 06-05-2025, 05:23 AM.Leave a comment:
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Well i replace MPSA06 and i repair broken trace but still nothing, i check for other broken trace but all seams fine. I have check the NPN 2N5038 and i only have voltage on case of transistor, the pins are 0VLast edited by rtstorm; 06-04-2025, 11:53 AM.Leave a comment:
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it is available [URL="https://www.tme.eu/hr/details/2n5038-cdi/tranzistori-npn-tht/cdil/2n5038/"]here[/URL] in EUit is available [URL="https://www.tme.eu/hr/details/2n5038-cdi/tranzistori-npn-tht/cdil/2n5038/"]here[/URL] in EUit is available [URL="https://www.tme.eu/hr/details/2n5038-cdi/tranzistori-npn-tht/cdil/2n5038/"]here[/URL] in EU...Leave a comment:
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Well i am cleaning peace by peace and under one transistor found broken trace. Also colector leg was broken, i will replace it and repair the trace, maybe this will do the trick.
2N5038 is fine, not open or shorted...Leave a comment:
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I also found this resistor to look burned, it reads 0.6kOhm but from the color chart it shoud be like 60ohm not in kOhm, am i correct...
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So i shoud ground E9 to gnd and than try?...Leave a comment:
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Artesyn 3T12AP DC to DC regulator
Hello, a friend asked me to take a look at the DC-DC converter, it has no output power, he told me this is from crane control operations. It should convert from 48VDC to 24VDC, but the output is 0V., I checked the components like diode for a short, but they are all good. Does anybody know where to start? And my big question is should the board start working once i connect 48V automatically, or should there be some kind of "signal" .... -
Somehow i managed to get a "new" board, customers bought it. And now when i connect the CMOS battery for the first time and battery the laptop turns on automatically (this is normal). And everything is working everything is ok until i shut it down, after you press the power button nothing happens. I check pin 7 on the keyboard connector and it is at 3.3V, pressing the power button does not change the voltage on that pin. I try manually short this pin to the gnd but the laptop still does not turn on.
When i disconnect the cmos battery and reconnect the cmos batt and laptop battery...Leave a comment:
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Really? Hahah. The problem is I am from Europe and I need to pay an import fee when buying from the US. So on that price, my customs will charge me like 20-30% on top.Leave a comment:
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thanks, so I am checking model Nano 200 and it has res. 200x150 and sensibility of 35mK, and this Chinese thing has 256x192 with 50mK. One thing is that Seek offered to buy macro lenses and for this MILESEEY I cannot find anywhere (maybe it is compatible with other manufactures. I know that Seek is well known company so I am not sure what to do here :-(Leave a comment:
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Well did you inspect the board? Is there any liquid damage or something burned? How this thing hapen, dis the laptop turn off by itself or was there any damage done?...Leave a comment:
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MILESEEY TR256i Thermal Camera
Hello, i found [URL="https://www.aliexpress.com/item/1005004787793405.html?pdp_npi=4%40dis%21HRK%21HRK%201%2C953.32%21HRK%20996.17%21%21%21288.44%21147.10%21%40211b654b17267438238088223ed8e6%2112000034165647607%21sh%21HR%21107534255%21X&spm=a2g0o.store_pc_allItems_or_groupList.new_all_items_2007585533387.1005004787793405"]this[/URL] thermal camera on the ALiExpress and i wanted to ask if anybody use this for electronic repair. Is it any good, and do i need to have macro lens since i don't see that this camera has it.
It cost around 180€-190€.
If someone can recommend... -
Hello, do you have any info of the component that i am trying to identify?...Leave a comment:
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Ok i will contact the seller, thank youLeave a comment:
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What do you ment by confirming the AWS marking code?Leave a comment:
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HP EliteBook 840 G8 water damage - identify component
Hello, i got an HP EliteBook 840 G8 that has water damage, and i found this component has damage on it U60600. What is that component? I have schematics and boardview and the par no is:
SINERGY_SYV128RAC_QFN_20P i cannot fount it anywhere. Is this component have some other name?
Here is schematics + boardview...
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