SERVICE MANUAL
Rev. 05/2005
P - 48
Procedure to check the values of the 3 potentiometers :
- Connect the voltmeter between the pin 3 and the pin 4.
(pin 3 is the power supply and pin 4 is the ground)
- Turn On the unit (in service mode).
- Select the ready mode and check the different high voltage value for the
different pulses at cold and at warm laser.
- Select 3 pulses and ready mode. Check the high voltage value (nearly
900V).
- Select 2 pulses and ready mode. Check the high voltage value (nearly
750V).
- Select 1 pulse and ready mode. Check the high voltage value (nearly
600V).
If a value does not correspond to theoretical value, contact Quantel
Médical to know and check the different voltage values following the
different pulses. (1 pulse, 2 pulses and 3 pulses).
Theoretical range of the
differents pulses :
P1
P2
P3
Number of pulses
1 pu lse
2 pulses
3 pulses
Minimum High
Voltage Value
500 V
650 V
800 V
Maximum High
Voltage Value
650 V
800 V
920 V
CAUTION : If the High Vo ltage value is > 920 V,
the number of pulses will be 4
pin 4
pin 3
7 - ELECTRONIC ADJUSTMENTS
