Uh oh.
Seems like I measured 22 ohms for something, that might have been the PB bias coil (pins 1 & 22). The recording heads may have been lower, but they were all about the same. I hope they are good, have not tried recording yet.
I could make a suggestion…maybe you have the same problem I did. The heads themselves were OK, the copper tracks on the FFC were broken just above where the insulation ends and the gold fingers are exposed. I used the Dremel tool to sand away the insulation to expose the copper tracks above the breaks. This has to be done carefully or the tracks will be sanded too. Measure there for continuity, if OK, you can decide what to do next. (I tried this because I didn’t have anything to lose.)
If your heads are really dead, I wonder what knocked them out. Service manual warns that they will only withstand 150VDC from static, etc.
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