28 Dec
2003
28 Dec
'03
3:24 p.m.
Tony,
Is the main rectifier diode a black ractangular box with 4 legs, one
labled +, one labled -, and two labeled with s-shaped swigly lines?
Should I get continuity between the s-shaped swigglely lines?
Chad
Tony said:
check forwards from the mains input and at least find
the mains
rectifier diodes and the chopper transistor. Check these for shorts. If
the transistor is OK, and one or more of the diodes is shorted, then
replace the diodes (use something rated at _at least_ 400V 2A) and try
again. If the chopper is shorted, well, you've probably got other
problems too, and _I_ wouldn't want to do much more without a schematic...