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
Summary of Contents for WFM 601A
Page 4: ......
Page 10: ...Table of Contents vi WFM 601A WFM 601E WFM 601M Service Manual ...
Page 16: ...Service Safety Summary xii WFM 601A WFM 601E WFM 601M Service Manual ...
Page 21: ......
Page 35: ...Specifications 1 14 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 36: ......
Page 44: ...Installation 2 8 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 54: ...Operating Information 2 18 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 55: ......
Page 64: ......
Page 91: ......
Page 120: ......
Page 169: ......
Page 172: ......
Page 270: ...Replaceable Electrical Parts 8 98 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 272: ...9 2 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 282: ......
Page 284: ......
Page 286: ......
Page 288: ......
Page 290: ......
Page 294: ......
Page 298: ...9 28 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 300: ......
Page 302: ......
Page 304: ......
Page 308: ......
Page 310: ......
Page 312: ......
Page 316: ...9 46 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 318: ......
Page 320: ......
Page 322: ......
Page 328: ...9 58 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 330: ......
Page 332: ......
Page 334: ......
Page 336: ......
Page 338: ......
Page 340: ......
Page 342: ......
Page 344: ......
Page 350: ...9 80 WFM 601A WFM 601E WFM 601M Service Manual ...
Page 352: ......
Page 354: ......
Page 367: ......
Page 368: ......