Power Supplies
The following procedure allows you to determine whether the power supplies are working properly.
Follow the disassembly procedure to disassemble the instrument. Be sure to disconnect all inputs to the
instrument before beginning disassembly.
Circuit side of board
The following measurements use the frame of the instrument as the low voltage reference. The instrument should be
turned on, and the light below the power switch should be green.
Pin Location Detail
C1103 pin 1
15 V ± 25%
J1102 pin 21
3.3 V ± 5%
290 Agilent Truevolt Series DMM Operating and Service Guide