Instrument Reassembly; Input Terminal Wire Connections; Power Module Wire Connections; Table 5-1 Input Terminal Wire Colors - Keithley 2700 Service Manual

Instrument reassembly

Reassemble the instrument by reversing the previous disassembly procedures. Make sure
that all parts are properly seated and secured, and that all connections are properly made. To
ensure proper operation, replace and securely fasten the shield.
WARNING

Input terminal wire connections

During reassembly, use the information in
Table 5-1
Input terminal wire colors
Input terminal
INPUT HI
INPUT LO
SENSE HI
SENSE LO
AMPS

Power module wire connections

Use the information in
module wires.
Table 5-2
Power module wire colors
Location
Right side
Right top
Left top
Right bottom
Left bottom
To ensure continued protection against electrical shock, verify that power
line ground (green and yellow wire attached to the power module) and the
power transformer ground (black wire) are connected to the chassis. When
installing the power transformer, be sure to reconnect the black ground
wire to the mounting stud on side of the chassis. Be sure to install the bot-
tom case screws to assure a good case-to-chassis ground connection.
Wire color
Red
Black
Yellow
Gray
White
Table 5-2 and DETAIL B of drawing 2700-050 to connect power
Wire color
Gray
Violet
White
Red
Blue
Table 5-1 to connect input terminal wires.
Disassembly 5-7