Hobart Handler 190 - Control Board PC1 Test Point Values

TM-260 273 Page 25Handler 190
6-4. Control Board PC1 Test Point Values
PC1 Voltage Readings
a) Tolerance −
±10% unless
specified
b) Reference − to circuit common
unless noted
Voltage Readings:
a) Tolerance − ±10% unless specified b) Reference − as noted
Receptacle Pin Value
RC1
1 +29 volts dc, reference to RC1-11
2 +32 volts dc, reference to RC1-11
3 +32 volts dc, reference to RC1-11
4 +28.5 volts dc with gun trigger closed, reference to RC1-11
5 +32 volts dc, reference to RC1-11
6 24 volts ac, reference to RC1-14
7 +32 volts dc with MIG Gun/Spool Gun switch S3 in Spool Gun position, reference to RC1-11
8 +17.5 volts dc with gun trigger closed, reference to RC1-16
9 Not used
10 +3.8 volts dc with Wire Speed control R2 at min and gun trigger closed, reference to RC1-11;
+16.4 volts dc with Wire Speed control R2 at max and gun trigger closed, reference to RC1-11
11 Not used, PC board common
12 23 volts ac with gun trigger closed, reference to RC1-15
13 +33 volts dc, reference to RC1-11
14 24 volts ac, reference to RC1-6
15 23 volts ac with gun trigger closed, reference to RC1-12
16 −17.2 volts dc with gun trigger closed, reference to RC1-8
17 MIG Gun/Spool Gun switch S3 in Spool Gun position and gun trigger closed, reference to RC1-20;
+4.8 volts dc with Wire Speed control R2 at min ; +16.3 volts dc with Wire Speed control R2 at max
18 +19 volts dc with MIG Gun/Spool Gun switch S3 in Spool Gun position, reference to RC1-11
19 +4.5 volts dc with MIG Gun/Spool Gun switch S3 in Spool Gun position, reference to RC1-11
20 MIG Gun/Spool Gun switch S3 in Spool Gun position and gun trigger closed, reference to RC1-17;
−4.8 volts dc with Wire Speed control R2 at min ; −16.3 volts dc with Wire Speed control R2 at max
RC4 1-2 0 volts dc with gun trigger open
+1.9 volts dc with Wire Speed control R2 set to min and gun trigger closed
+14.4 volts dc with Wire Speed control R2 set to max and gun trigger closed