AlR1, AlR3, and AlU1 connect to the ac mains voltage. Use a voltmeter with both input terminals floating to measure the rail voltage.

a.Select the functional circuit for troubleshooting based on your measurements and Table 3-11, which provides direction based on the status of the PWM OFF and PWM ON signals.

Figure 3-6. Modified Mains Cord Set For Troubleshooting

Power Section Blocks

This section contains the blocks referenced in Tables 3-10 and 3-11.

54

Page 52
Image 52
Agilent Technologies 6035A, 6031A, 6032A, 6030A Power Section Blocks, Modified Mains Cord Set For Troubleshooting