Here I have a un hacked unmolested TRC-457. This radio is as original as I have seen. I did replace the filter cap on the power supply board to get it to turn on. There is not TX or RX but I have not fully tested the radio yet. All I have done was cleaned the front panel due to heavy nicotine deposits.
I checked the 10.240 on IC7 pin 9 and 10 and it is present. I also checked for frequency on TP-6 and it is there. This leads me to think the PLL is ok but will need further testing.