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PSU tickling sound
Hi,
PSU has tickling sound problem. I read that changing the regulator IC will solve the problem. So I change the KA3842B Controller IC with UC3842B IC (On Semiconductor). Tickling sound disappears but PSU could not power on the Point of Sales terminal; just managed to flicker on the terminal display only. Should I use only the original KA3842B Controller IC? Thanks for your advise. Seventh Prince |
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