Orange Cable Checkout
4-54 72A-1230 Rev. F
July 22, 2005
Orange Cable Checkout
Check the Orange Cable (Figure 4.27) for proper seating. It should not be
shorting to the chassis, and its insulation should be intact.
Figure 4.27 M4100 Chassis, Covers Removed
Transformer Checks
The metal sheet over the transformer (Figure 4.27) is at chassis ground, while
the reference box is at guard potential. The two should not be forced together,
making contact with each other, at any point. The transformer beneath the
grounded metal cover is also at guard potential. It should not be short-circuited
to a grounded point, such as the amplifier box next to it near the bottom of the
M4100. An inadvertent short can develop here if the M4100 has been dropped.
Transformer
(cover removed)
HV Pothead
Orange
Cable
Field Calibration
Reference box
Main References
Assembly
Amplifier
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