RF Modulator Problems
Posted: Thu Mar 22, 2018 2:28 am
So what's the skinny on the RF modulators?
My ZX80 original has the UM1082 and it doesn't work.
I have a good video signal going in and power, but
it doesn't output anything to channel 2.
I had good output for an instant once while touching
around the coil- where it is split in 2. Is that area really touchy?
Are there typical failure modes? Might it just need
solder touch up on the bottom?
My ZX80 original has the UM1082 and it doesn't work.
I have a good video signal going in and power, but
it doesn't output anything to channel 2.
I had good output for an instant once while touching
around the coil- where it is split in 2. Is that area really touchy?
Are there typical failure modes? Might it just need
solder touch up on the bottom?