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Xringer · 07-12-17, 09:24 AM

Be careful of those heat-sink clips on those two power 'transistor-like' devices.
There might be HV on those..

Check the 20 pin chip to see if any of the pins were accidentally bent underneath
the body of the chip. I've seen bent-pin-contact fail (open) after years in service..

07-12-17, 09:24 AM	#9
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	Be careful of those heat-sink clips on those two power 'transistor-like' devices. There might be HV on those.. Check the 20 pin chip to see if any of the pins were accidentally bent underneath the body of the chip. I've seen bent-pin-contact fail (open) after years in service.. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..