Maintenance
6–6
WFM 601A, WFM 601E, & WFM 601M Service Manual
Signals and power supply voltages are passed through the instrument with a
system of interconnecting cables. The connectors on these cables have numbers
that identify terminal connectors; numerals are used from pin 2 up. A triangular
key symbol identifies pin 1 on the circuit board. Figure 6–1 shows the numbering
scheme (and the triangular marking) on the circuit board.
Circuit board mounted pins
Pin 1
10-pin plug
Square pin connector on
power supply circuit board
Pin 1
Pin 1
Row A
Row B
Row B
Row A
24 and 34 pin circuit
board connectors on
Main circuit board
Figure 6–1: Multiple pin connectors
Figure 6–2 shows the correct way to remove the large cables joining circuit
boards.
Cable Pin Assignments
and Removal
Содержание WFM 601A
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