Check resistances per continuity table f.6, Troubleshooting & repair, Continued) – Lincoln Electric SQUARE WAVE TIG 255 SVM100-A User Manual

Page 63: Protection/snubber board continuity test

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SQUARE WAVE TIG 255

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F-22

TROUBLESHOOTING & REPAIR

PROTECTION/SNUBBER BOARD CONTINUITY TEST

(continued)

Check Points

Component(s) Being Checked

Maximum Allowable Resistance

5J13 to 5J12

L1 and Board Trace

4.2 OHMS (3.3 Typical)

13J13 to 12J12

L2 and Board Trace

4.2 OHMS (3.3 Typical)

4J13 to 4J12

L3 and Board Trace

4.2 OHMS (3.3 Typical)

12J13 to 11J12

L4 and Board Trace

4.2 OHMS (3.3 Typical)

2J13 to 2J12

L5 and Board Trace

4.2 OHMS (3.3 Typical)

9J13 to 8J12

L6 and Board Trace

4.2 OHMS (3.3 Typical)

1J13 to 1J12

L7 and Board Trace

4.2 OHMS (3.3 Typical)

11J13 to 10J12

L8 and Board Trace

4.2 OHMS (3.3 Typical)

3J13 to 3J12

L9 and Board Trace

4.2 OHMS (3.3 Typical)

5J15 to 4J14

L10 and Board Trace

4.2 OHMS (3.3 Typical)

4J15 to 8J14

L11 and Board Trace

4.2 OHMS (3.3 Typical)

4J15 to 5J14

L12 and Board Trace

.35 OHMS (.32 Typical)

4J15 to 3J14

L13 and Board Trace

.35 OHMS (.32 Typical)

6J15 to 4J14

L10 and Board Trace

4.2 OHMS (3.3 Typical)

2J15 to 2J14

L14 and Board Trace

.35 OHMS (.32 Typical)

3J15 to 6J14

L15 and Board Trace

.35 OHMS (.32 Typical)

1J15 to 1J14

L16 and Board Trace

.35 OHMS (.32 Typical)

1J10 to 1J11

Board Trace

.0 OHMS

2J10 to 2J11

Board Trace

.0 OHMS

7J10 to 6J11

Board Trace

.0 OHMS

10J10 to 9J11

Board Trace

.0 OHMS

9J10 to 8J11

Board Trace

.0 OHMS

3J10 to 3J11

Board Trace

.0 OHMS

4J10 to 4J11

Board Trace

.0 OHMS

PROTECTION/SNUBBER

L9255

J10

J11

J12

J13

J14

J15

1J10

12J10

1J11

10J11

1J12

14J12

1J13

16J13

1J14

8J14

1J15

6J15

FIGURE F.6 - PROTECTION/SNUBBER BOARD TEST POINTS.

TABLE F.6

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