well , i did all e work. i re-capped the power suplly section, put new voltage regulators, and installed the VFD. the vfd has caused a small issue: it sits like .5mm higher than the old LCD, so i checked the board behind the old LCD area, kucily it was a huge, blank field of open PCB. so i drilled to holed thru the board to accomodate the "taller" compoments on the back of the VFD board. problem solved. now all switches sit as they really should.
enter the next test: power section heats up INCREDIBLY fast. ugh. ok so unplug all boards and slowly plug them in to see whats causing the issue If you guessed the VFD was the issue - YOURE WRONG! its the voicing board (uh-oh) since it contains some of the super rare CEM chips. luckily none of them were smoking hot. the 2 voltage resistors on that board (7805 an 7905) positive and negative 5 volt regulators are the issue.. the negative one gets untouchable. red flag. no good. i left it on with the switch/display section on for like an hour : normal heat level on the ps. i turn the voincing board on and in like 5 monutes the ps is too hot to touch. not good. so i had to order the regulators (50 cent parts) from mouser electronics. only took 3 days to get here but.. still. i hate the fact that there are no more mom and pop electronic supply places left. anyway i ll try them out in there today and see if the solve the issue. im crossing my figers...
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