Quote:
Originally Posted by old_tv_nut
Can you put in some regular video and see if you're getting rainbows from left to right? It's hard to tell on those bars, but the chroma frequency may be off. This seems very peculiar though, as I thought the monitor input on most VCR's just went directly to the RF modulator without being processed by the VCR color circuits. So, first you need to figure out exactly what is happening to the signal so you can figure out how to fix it.
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On this VTR there is a switch for BW or Color. On playback mode you can switch between the two and if your tape was in color you'd get color picture, otherwise you can watch it in BW. When i switch to color mode on a tape i KNOW should be in color, I also get ranbow banding like this (see image)
This VTR has twin leads for UHF and VHF in, then RCA video.audio outs as well as coax VHF output. The generator is running thu twin lead VHF in, then I have the RCA video out going to the in on my tv.(right side of the previous image). In the schematic, most of the adjustment pots for a Scope are controlled though the VTR in monitor mode with a NTSC picture pattern.
