Electronics > Repair
Siglent SDS1202x-E fried FAN driver transistor - SOLVED -
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SeanB:
Would move those screws and nuts in the bag though, using 2 cable ties to attach them to the metal chassis, probably using the round punched holes to the side of the fan, keeping them from touching the components, even if the bag disintegrates. Would also run the nuts up to the top by the screw head as well.
tppc:

--- Quote from: tautech on January 29, 2024, 08:10:47 pm ---Think it's just A2R.....
https://www.aliexpress.com/item/32330365420.html

--- End quote ---
Hi everyone,
I could not find any result for the codes A2RX or A2R.
A2 could be almost anything from diodes, mosfets to voltage regulators...
Can anyone have access to the SDS1202X-E parts list and check the reference for Q34?

Best Regards.
fzabkar:
https://www.micro-bridge.com/data/syncpower/SPN3402.pdf (A2yw)

https://www.aosmd.com/sites/default/files/res/datasheets/AO3402.pdf

http://markingcodes.com/search/c/a2xx
tppc:
thank you very much!
SPN3402 seems to be the right one. :-+

I desoldered the broken transistor but now the scope does not power up anymore  :palm:
All PSU voltages OK except -VEE which reads -8.8V instead of -10V.

I need to investigate more. :'(
tautech:

--- Quote from: tppc on June 22, 2024, 12:29:06 pm ---
--- Quote from: tautech on January 29, 2024, 08:10:47 pm ---Think it's just A2R.....
https://www.aliexpress.com/item/32330365420.html

--- End quote ---
Hi everyone,
I could not find any result for the codes A2RX or A2R.
A2 could be almost anything from diodes, mosfets to voltage regulators...
Can anyone have access to the SDS1202X-E parts list and check the reference for Q34?

--- End quote ---
Schematics are not available.
I've done the work for you and given you a link to the transistor.

I have a SDS1202X-E warranty claim PCB should you need other parts identified.
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