A fellow HAM dropped off a later serial numbered TS-930S he acquired. After bringing it up on a variac, I noticed the receiver performs erratically. It will drift in and out or it will cut out all together. After a few seconds, it will come back. The meter would reflect that. I tested the power supply, which is mostly original, and the voltages look OK. I was going through the voltage adjustments from pg 64 of the service manual, and most of the voltages checked out fine except for Jumper wire J13 on the signal board. It should be 2.2V but I'm getting 18V. Adjusting VR25 has no affect on the J13 voltage. I'm not sure if this reading is related to this specific problem. With a HP signal generator, I was able to check the receiver across the entire band using 0.5mhz increment and I hear the 1khz tone just fine. Any suggestions?