Page 1-5
CHAPTER 1 AC/DC POWER DISTRIBUTION
Effective
09/2005
TROUBLESHOOTING
COMPLAINT
CORRECTIVE ACTION
I.
Machine will not power up.
Is the machine plugged in at the wall?
NO->
Plug machine in.
Is the balancer plugged in at the back?
NO->
Plug machine in.
Does transformer output read 9 VAC at the end of
the receptacle?
NO->
Replace power transformer.
Is 9 VAC present at pins 1 and 2 at X22 of Power Board?
NO->
Replace power wiring harness.
Is 9 VAC present at F1 on the Power Board?
(See diagram page 1-2)
NO->
Replace fuse.
Is 5 VDC present at pins 11 and 14 at X1?
NO->
Replace Power Board.
Is 5 VDC LED lit up on Processor Board?
NO->
Replace Processor Board.
Is 5 VDC present at pins 3 and 6 at X2?
NO->
Replace Power Board.
Are LED lit up on Display Board?
NO->
Replace Display Board.
II. Machine will not brake.
Is 12 VDC present at pins 1 and 2 at X23 during brake cycle?
NO->
Replace Power Board.
Is 12 VDC present at the brake solenoid during brake cycle?
NO->
Replace wiring harness.
Replace brake solenoid.
Replace Processor Board.
III. Keypad will not function.
Use keypad schematic (See diagram on page 1-3) jumper
pins of non working function.
NO->
Replace keypad.
Replace Display Board.
Replace Main Processor.