Zenith VCR died a few weeks ago. Got off my duff Sunday and had a look. No schematic, but darkened PC board material led me to the faults. Swollen 100mfd, 200v 'lectrolytic (dead short) also took out a 2.7 ohm flameproof resistor and the full wave bridge, which was
incredibly undersized ( a 4 pin DIP) , and the 1.6 A fuse. Put in a 200 mfd 450 v cap, a REAL full wave bridge, ceramic resistor, and a new
fuse. Why is it supposed to be so much better to have 50 parts instead of a REAL transformer, when the switcher power supply is a guranteed failure device? Next time I'll figure out how put in a brute-force power supply with a "real" transformer.
Makes me mad when designers put in minimally adequate components in order to stimulate new sales.
Then there's that notice that says there are no user-servicable parts inside. Sez who?
I ordered a schematic download, which will be useful in the future.
A good head cleaning, and everything's OK. Didn't have to rob parts out of another old dead Zenith VCR we accquired somewhere.
Sure beats buying a new one which would have an even lower margin of quality than the 1997 model.