TM-260 273 Page 25
Handler 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
Содержание H100S4-10
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