I assume you have the head assy’s with the FFC cable attached, as used in the DCC900. I checked the recording heads with an ohmmeter. Checking while connected to the deck might be difficult, since constantly-changing voltages will be applied to them. (If you hold the FFC with the fingers up and pointing toward you, pin 1 is on the right.) There is apparently a record head connected to pin 2, one to pin 4, etc, up through pin 20. The other sides of all the heads are connected to an internal common. So, ohming between pins 2 and 4 will measure two heads, between 4 and 6 will measure two heads, etc. I think those heads were measuring less than 50 ohms, but as long as they are consistent, I assume they are OK. Does this help?
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