Keithley SourceMeter 2790 Reference Manual page 454

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Model 2790 SourceMeter
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7.
8.
9.
Figure 18-4
Model 7751/7752/7753 fuses
®
Switch System Reference Manual
Do not use a fuse with a higher current rating than specified or
inadvertent detonation of the airbag being tested may occur.
Solder the new fuse in place using organic (OA based) flux solder, again taking
care not to damage the circuit board or spread solder flux around the board.
Carefully clean the repaired area of the circuit board with a foam tipped swab or
brush dipped in pure water, then blow-dry the board with dry nitrogen gas. Allow
the board to dry for several hours in a 50°C low-humidity environment before use.
Re-install the circuit board into the plastic housing, then close the top cover.
F1, F2
F3, F4
SOURCE SENSE
GUARD
HI
LO
HI
LO
INT +5V
INT
HI
LO
HI
LO
IN
OUT
LO
GUARD
INTERLOCK
VSOURCE
ISOURCE
I / V
BANK 1
SRC
SEN
SRC
SEN
A1 B1
HI
HI
LO
LO
BANK 2
SRC
SEN
SRC
SEN
A2 B2
HI
HI
LO
LO
HI
HI
LO
LO
A4 B4
SRC
SEN
SRC
SEN
BANK 4
HI
HI
LO
LO
A3 B3
SRC
SEN
SRC
SEN
BANK 3
18-7

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