Red-D-Arc EXTREME 360, Техническое руководство

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PRE-POWER CHECKS
TM-229 409 Page 28 Extreme 360
6-15. Control/Auxiliary Power Board PC1 − Pre-Regulator Control Circuit
Ref. 217 184-F / 907 161
Y Read and follow safety information
in Section 6-1 before proceeding.
Y Wear an earth grounded wrist strap
when performing pre-power
checks. Remove wrist strap before
performing any checks or proce-
dures with power applied to the ma-
chine.
.
Remove all plugs from PC1 before
testing.
1 Control Board PC1
2 Receptacle RC2
3 Receptacle RC3
4 Receptacle RC5
5 IGBT Gate Drive IC U6
6 Diode D18
7 Diode D41
8 Diode D46
9 Diode D47
10 Diode D49
11 Diode D50
12 Diode D51
13 Diode D52
14 Diode D53
Unplug all connections to PC1.
Visually inspect PC1 for damage.
Check all measurements for PC1 Auxiliary
Power, Pre-Regulator and Inverter Control
(see Sections 6-14 thru 6-18).
If all measurements passed, continue to
the end of the pre-power flowchart (see
Section 6-2).
.
If any measurements failed, replace
PC1.
1
3
2
4
Test Equipment Needed:
5
6
7
8
9
10
11
12
13
14
1
2
3
4
8
7
6
5
.
Pin sequence of IC chips.