2022-06-16

GTV LD ZASL6W-30 LED power supply

Small (up to 6W) LED power supply, 12V/0.5A




Repair:
  • C5 (47u/25V) was replaced as it completely lost it properties, not even being recognized by component tester as capacitor
  • THX203H needed replacing
As this exact model costs $5, repairing it might be not worth the time. I thought this only capacitor failure at first, but driver chip was available at the local electronics store that I had to visit anyway for $0.75.
I'm not 100% sure if I've fixed everything as this power supply behaves somehow weird - it's output voltage is stable with 100 Ohm load (120 mA) but falls down to 9 V with 27 Ohm load (~300 mA).



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