Check the power supply board 7.2V output voltage is normal, measure the VC-19 board IC602 6-pin output voltage of 3VjnSservice manual download site
Normal .5 feet reset voltage also normal, but IC604, X601 not afford to vibration. X602 is working properly. Initially suspectedjnSservice manual download site
X601 crystal damage. Tried to replace the ineffective last CUP IA604 61 foot measuring 3V low voltage and only multi-1V by sealing offjnSservice manual download site
After C630, 61-pin voltage rises to 3V, the machine is working properly.jnSservice manual download site
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