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Removal and Installation Procedures
TLA7Nx, TLA7Px, & TLA7Qx Logic Analyzer Module Service Manual
6- 23
Table 6- 5: Acquisition board fuses (Cont.)
Installed In-
line Fuse
Circuit
Purpose
Voltage
Replace-
ment Thru-
hole Fuse
Circuit
F991
F0992
--24 V
Protects the --24 V to the local processor unit board.
The --24 V power a
±
24 V-to-3.3 V DC to DC
converter that powers the acquisition RAM.
F990
F0993
+24 V
Protects the +24 V to the local processor unit board.
The voltages power
±
24 V-to-3.3 V DC to DC
converter that +5 V powers the acquisition RAM.
You will need a screwdriver with a size T-10 Torx tip, a soldering iron, and
solder wick to replace the fuses.
Use the following procedure and Figure 6--12 to remove the fuses.
1.
Perform the
Local Processor Unit Board
removal procedure (see page 6--13).
2.
Use Figure 6--12 to locate the fuse to be replaced on the component side of
the boards. For fuses mounted on the back side of the acquisition board,
perform the Acquisition Board removal procedure (see page 6--17).
3.
Unsolder and discard the fuse.
Acquisition board
LPU board
F981
F980
F891
F890
F690
F991
F990
F951
F953
F940
F942
F740
F470
Figure 6- 12: Fuse replacement
Removal
Содержание LTA7P Series
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Страница 96: ...Logic Analyzer Module Adjustment Procedures 5 10 TLA7Nx TLA7Px TLA7Qx Logic Analyzer Module Service Manual...
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