40 Volt Dc Bus Board Test Points And Expected Readings - Lincoln Electric POWER WAVE S500 Service Manual

F-51
40 VOLT DC BUS BOARD TEST (continued)
TABLE F.16 – 40 VOLT DC BUS BOARD TEST POINTS AND EXPECTED READINGS
DESCRIPTION
INPUT FROM THE
POWER CONVERSION
ASSEMBLY
40VDC OUTPUT TO
ArcLink RECEPTACLE
40VDC OUTPUT TO
PFC CONTROL BOARD
TROUBLESHOOTING AND REPAIR
FIGURE F.19 – 40 VOLT DC BUS BOARD TEST POINTS
LEAD
#52A
LEAD
#52
LEAD
J47
#51A
LEAD
#51
TEST POINT
PLUG J48 PIN 1 (+)
LEAD #65A
PLUG J47 PIN 8 (+)
LEAD #52A
PLUG J47 PIN 4 (+)
LEAD #52
POWER WAVE
LEAD
RED
#66
LED
J48
L15732-1
TEST POINT
PLUG J48 PIN 3 (–)
LEAD #66
PLUG J47 PIN 1 (+)
LEAD #51A
PLUG J47 PIN 5 (+)
LEAD #51
® S500
LEAD
#65A
EXPECTED
READING
48VDC
40VDC
40VDC
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