terminate into the terminal strip. The tables below show the connector pin designation
and function of both cables.
AUXILIARY GENERATOR CABLE, J22
PIN
FUNCTION
A
(QU) Primary unbalance monitor output to the ma overload circuit.
B
(XSO) One side of the primary for the filament transformer for the small
filament in the over-table X-ray tube.
C
(XLO) One side of the primary for the filament transformer for the large
filament in the over-table X-ray tube.
D
(M1) Current output from the cathode bridge to the ma overload circuit.
E
(M2) Current output from the anode bridge to the ma overload circuit.
F
(XSU) One side of the primary for the filament transformer for the small
filament in the under-table X-ray tube.
G
(XLU) One side of the primary for the filament transformer for the large
filament in the under-table X-ray tube.
H
(SO) Ground side of the stator winding for the changeover switch for
selecting the over-table X-ray tube.
J
(SU) Ground side of the stator winding for the changeover switch for
selecting the under-table X-ray tube.
K
(G) Ground point for auxiliary generator cable.
L
(N) Common point for the primaries of all filament transformers and
return side of the field winding for the changeover switch.
M
(115v) Supply lead for the field winding of the changeover switch.
MAIN GENERATOR CABLE J23
PIN
FUNCTION
A
(P1) Primary side of the high-tension transformer.
B
(G) Ground for the main generator cable.
C
(P2) Primary side of the high-tension transformer
c. Although the high-voltage generator contains one high-tension transformer, it
can accommodate two X-ray tubes. This is accomplished through the use of the
changeover switch. This switch connects only the high voltage to the desired X-ray
tube, either over-table or under-table. One X-ray tube is connected to the diode
bridges, the other X-ray tube is at ground potential.
d. The appropriate X-ray tube filaments are energized by selection in the control
of its energizing filament transformer. Filament power is supplied to XLO for the large
over-table filament, XSO for the small over-table filament, XLU for the large under-table
filament and XSU for the small under-table filament.
MD0351
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