Doughbroz
New member
Starting a new thread on this, the other one got too confusing. Have the same identical problem with two 4600 main chassis boards, one of which has been totally recapped with no improvement, both have new HOT, good solder connections, etc. Problem is, at startup no HV, volts on big resistor start at 90 and 70, iso transformer is rattling. After a couple of minutes voltage drops to 50 and 10 and rattling gets louder. Leave it on long enough, HOT blows but fuse never does. All three daughter cards, flyback, and neck board are from a working monitor, hooked up to a game that works fine with a third main chassis board. So, the problem has to be in the main chassis boards. Tested every diode I can see, solder is good, wiring is good, etc, etc. Any ideas what is left to try? I am at the point where I would gladly pay to have these things fixed because they are really pissing me off. And does anyone know where I can find a 4600 flow chart. Thanks


