And f.1b, Troubleshooting & repair, Main transformer test – Lincoln Electric IDEALARC SP-250 Manuel d'utilisation
Page 63
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F-16
TROUBLESHOOTING & REPAIR
F-16
IDEALARC SP-250
G1992 (code 9402 only):
5.
Connect main input power to the
machine.
6.
Turn the IDEALARC SP-250
ON/OFF POWER SWITCH to ON.
7.
Make the following voltage tests at
Plug J3.
MAIN TRANSFORMER TEST
FIGURE F.1B - G1992 (Code 9402 Only) Control PC Board Main Transformer Test
Points. Note: Plugs J5 and J6 are on inboard non-component side of Control
Board.
SP-250 CONTROL
G1992
J2
J7
J4
J5
J3
J6
J9
J8
#208
(1J3)
#209 (2J3)
#206 (3J3)
#204A (5J3)
#202 (6J3)
#203
(7J3)
4. Locate the following leads on Plug
J3:
G2252:
PLUG
LOCATION
1J3
3J3
2J3
LEAD
#202
#203
#204 A
PLUG
LOCATION
6J3
7J3
5J3
LEAD
#202
#203
#204 A
FROM
LEAD
#202
(1J3)
#202
(1J3)
#203
(3J3)
TO
LEAD
#203
(3J3)
#204 A
(2J3)
#204 A
(2J3)
EXPECTED
VOLTAGE
30 VAC
15 VAC
15 VAC
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