Description of boards 31
9.8) HIGH-FREQUENCY BOARD 15.14.286 (fig. 29)
This board generates series of very fast high-voltage pulses to facilitate TIG striking.
WARNING:
perform checks following steps 1 and 2 in the given order!
WARNING:
measurements indicated in the following table must be taken directly on bus board 15.14.285
/15.14.315 once HF board 15.14.286 has been removed from the machine!
*
Note:
- this voltage remains for just 1.5 seconds once the torch trigger is pulled
- this voltage is equivalent to mea0.3 Vdc directly on the HF board's connector CN1, when connected.
WARNING:
- insert HF board 15.14.286 in the machine and connect it to bus board 15.14.285/15.14.315
- switch on the power source and take measurements indicated in the table below, without pulling the torch
trigger:
** Note:
you are advised not to take measurements on D1 whilst the torch trigger is pulled as the HF dis-
charge might damage your multimeter!
Power source / Mode Component
Test point
Value
ON
CNB2 on Bus board
PIN 1 5
+385 Vdc
15.14.285/15.14.315
ON / TIG HF
CN4 on Bus board
PIN 4 8
+6 Vdc*
15.14.285/15.14.315
Power source / Mode Component
Test point
Value
ON / TIG HF
D1
V A K
+920 Vdc
(torch trigger
not pulled)**
Power source
FN1
FN2
Genesis 200 TLH
WHITE
RED
Genesis 200 AC-DC
RED
WHITE
Unless otherwise specified, all measurements sholud be taken with the boards in their slots and connected accordingly
1
2
