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Problem:
Chassis does not light when turned on:
Chassis lights when turned on, but
handpiece does not turn:
Chassis does not light when 12V/24V
power is applied (* requires further dis-
assembly, refer to schematic drawing
set):
Chassis does not light when battery
pack is applied:
Motor slowing down or sluggish:
Unit fails to build pressure:
Battery fault light on:
Unit fault light on:
Correction:
Check chassis to power connection.
•
Check that voltage is proper voltage.
•
Check fuse. If blown, replace with 1.25A/250V slo-blo fuse for 120V operation, & 0.6A/250V slo-
•
blo fuse for 230V operation.
Check internal wiring harness connections.
*
Check the two internal DC current fuses. If either fuse is open, it is likely that the AC/DC power
*
supply or main board has a short that caused excessive current draw.
Check ribbon cable connection between main PCB and display PCB.
*
Check motor plug connection.
•
Check foot switch connection.
•
Depress foot switch.
•
Increase RPM.
•
Check that an instrument is properly seated in the handpiece and the collet is closed.
•
Check connections at DC source, chassis, and cable.
•
Check voltage of DC source.
•
Check internal wiring harness connections.
*
Check the internal 12A fuse on the red DC power line. If the fuse is open it is likely that the main
*
board has a short that caused excessive current draw.
Check connections at the battery pack, chassis, and cable.
•
Check voltage of the battery pack.
•
Check internal wiring harness connections.
*
Check the internal 5A fuse on the orange DC power line. If the fuse is open it is open it is likely
*
that the main board has a short that caused excessive current draw.
Check for dirty, under-lubricated handpiece.
•
Check if handpiece lubricant is running into motor.
•
After lubricating, set handpiece with head down to let excess lubricant drain out.
•
Check that bottles are tight.
•
Check for air leaks.
•
Check if battery is too cold (<0°C). Disconnect battery and allow it to warm to room temperature.
•
Check if battery is too hot (>55°C). Disconnect battery and allow it to cool to room temperature
•
Check if battery voltage is too low (<23V). Disconnect battery and confirm voltage is low (pins A
•
to D). An under-voltage battery may be able to be brought above 23V by trickle charging the
battery with the console or the solar panel.
Check if battery voltage is too high (>34V). Disconnect battery and confirm voltage is high (pins
•
A to D). An over-voltage battery should be replaced.
Charging timeout at 4 hours. Reset the charger. If two consecutive charging attempts fail,
•
replace the battery pack.
Unit operational error observed. Remove all power from unit for 30 minutes before attempting to
•
use the system again. If unit fault light is on during two consecutive attempts to operate the sys-
tem, return system for repair.
Check if there is overheating or faulty temperature monitoring of voltage booster transistors Q1
*
and Q2 by temperature sensor RT2 on the main PCB. Repair or replace PCB.
Check if there is overheating or faulty temperature monitoring of voltage booster diodes D2, D5,
*
D6, and D14 by temperature sensor RT1 on the main PCB. Repair or replace PCB.
Check for faulty regulation of boost voltage VPP to 36V on the main PCB. Repair or replace PCB.
*
Check for faulty regulation of compressor drive voltage VPMP to 24V on the main PCB. Repair or
*
replace PCB.
Check for faulty regulation of battery charge current CHG_I_MON on the main PCB. Repair or
*
replace PCB.
TROUBLESHOOTING:
* requires further disassembly, refer to schematic drawing set.