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4CP951R Rev4
(4C35/3905 Service Manual)
Page 2 of 3
3. Open the front sample door (C) and pull
the sides out gently to remove front
sample door.
4. Remove all mounting screws (D) from
the front panel of the instrument, and pull
the panel down and out.
5. Disconnect all of the wires (E) from the
power supply output terminals, noting
that the black wires are connected to the
(-) terminal and the violet wires to the (+)
terminal.
C
D
E
F
6. Disconnect the three wires from the power
supply input terminals.
NOTE:
The green/yellow wire is
connected to the ground terminal,
and the solid blue and brown wires
to the “N” and “L” terminals,
respectively.
CAUTION:
Note that the
position of the terminals depends
upon the manufacturer of the
power supply.
7. From underneath the instrument, remove
the two screws securing the power supply
to the base (F).
8. Pull up the deck slightly to allow for
clearance and remove the power supply
through the back of the instrument.
Summary of Contents for 3900
Page 1: ...3905SM Rev14 050415 The Advanced Osmometer Model 3900 Service Manual ...
Page 2: ......
Page 5: ...1 Introduction ...
Page 6: ......
Page 13: ...2 General Overview ...
Page 14: ......
Page 15: ...The Advanced Model 3900 Service Manual 15 Circuit Diagram ...
Page 20: ...20 The Advanced Model 3900 Service Manual Notes ...
Page 21: ...3 Maintenance ...
Page 22: ......
Page 25: ...4 Troubleshooting ...
Page 26: ......
Page 36: ...36 The Advanced Model 3900 Service Manual Notes ...
Page 37: ...5 Adjustments ...
Page 38: ......
Page 41: ...6 Replacement Instructions ...
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Page 113: ...4CP450 Rev1 4C35 3905 Service Manual Page 3 of 3 E J12 J3 J11 J13 ...
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Page 154: ...4CP446 Rev0 4C35 3905 Service Manual Page 2 of 2 C D E ...
Page 159: ...7 Schematics ...
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Page 169: ...Appendix A Symbol Definitions ...
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Page 173: ...Appendix B Product Disposal and Recycling ...
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Page 176: ...The Advanced Model 3900 Service Manual Notes ...
Page 177: ...Appendix C Service Log ...
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Page 180: ...Symptoms or Problems Repairs Replacements or Changes Serviced by ...
Page 181: ...Index ...
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