Mitsubishi CS2724R Won't Turn-on
 

My Mits CS2724R won't turn-on. Shorting the power relay produces a
raster with static and no audio. There is no signal on the resonator
CF7X0 (marked 393B) for the switch encoder (M50560-145P) on the control
board containing the front panel switches and the remote IR detector. I
paralleled a 455 KHz resonator across the 393B but still no
oscillations. Is the encoder chip defective or the resonator? I noticed
Tritronics sells a Telamatics repair kit for this set. Is it for this
problem? Any suggestions would be appreciated. TIA.