need help fixing a quroum

Железо для спектрум-совместимых машин

Postby soviet » Fri, 21.07.2017 19:18:27

hi guys i have acquired a brand new quorum 128+
after using it some minutes the psu got hot very very hot
after testing find this ic shorted
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someones knows what is and if there western equivalent
the computer works but have no ay sound and the floppy drive don't spin :bang:
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Postby WBC » Fri, 21.07.2017 20:04:29

КД238 <-> MBR1545CT or any other diode with 1->2<-3 pinout, 15 A or higher max current and 45 V or higher max peak voltage

by the way, using AT\ATX power supply or any other modern PSU is of course better ;) Also it is worth to check PCB for shortcircuits between power/ground lanes.
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я немножк упоролся с аватарой, извините (:
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Postby soviet » Fri, 21.07.2017 20:40:30

thanks for your reply i could love replace the old psu for a atx one but i dont have the pinouts im not sure of the input voltage
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Postby TS-Labs » Sat, 22.07.2017 03:14:14

I advice to use multimeter to measure voltage supplied. Don't thank.
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Postby soviet » Sun, 23.07.2017 01:26:40

Got the replacement diodes and fixed it now works like charm ;)
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