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TROUBLESHOOTING & REPAIR |
MAIN TRANSFORMER TEST (continued)
FIGURE F.1 — G3521 CONTROL PC BOARD AND M19248 SNUBBER PC BOARD
MAIN TRANSFORMER TEST POINTS.
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J6
X9 
(8J5) 
J5 |
#206 |
(3J5) |
J3
J8
J1
X5
(6J6)
X6
(5J6)
X7
(4J6)
X8
(16J5)
#209S
(6J9)
J9
#208S
(2J9)
J4
J2
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TEST PROCEDURE
WARNING
The ON/OFF POWER SWITCH will be “hot” during these tests.
NOTE: Secondary voltages will vary pro- portionately with the primary input voltage.
1.Disconnect the main input power sup- ply to the machine.
2.Remove the case top and side panels with a 3/8 in. nutdriver.
3.Remove the tool tray with a 5/16 in. nut- driver.
4.Locate plug J5 and plug J6 on the G3521 control PC board, and J9 on the M19248 snubber PC board. See Figure F.1.
NOTE: The location of plugs may vary depending on the machine code.
5.Locate the following leads on plug J6 on the G3521 control PC board:
| PLUG |
LEAD | LOCATION |
|
|
X5 | 6J6 |
X6 | 5J6 |
X7 | 4J6 |
|
|
