[VHFcontesting] Icom Ic-375A repair

[mikflathead at aol.com]

Just a follow up on the Ic-375A repair. After much checking the problem turned out to be a quad diode back in the final mixer IC-2. This looks like a mmic. These are part number ND487R1-C2. This was preventing the final mixer to operate properly to drive the amplifier chain. A simple $2.00 part. I also had a problem with the built in supply. That turned out to be 2, .5 ohm 2 watt resistors. These are r17 and r19. They have some heat tubing over them that makes it impossible to see there condition without removing them. Hope this may help someone. Mike