Maintenance
Table 17: Internal inspection checklist
Item
Inspect for
Repair action
Circuit boards
Loose, broken, or corroded solder
connections. Burned circuit boards.
Burned, broken, or cracked circuit-run
plating.
Remove and replace damaged circuit board.
Resistors
Burned, cracked, broken, blistered
condition.
Remove and replace damaged circuit board.
Solder connections
Cold solder or rosin joints.
Resolder joint and clean with isopropyl
alcohol.
Capacitors
Damaged or leaking cases. Corroded
solder on leads or terminals.
Remove and replace damaged circuit board.
Wiring and cables
Loose plugs or connectors. Burned, broken,
or frayed wiring.
Firmly seat connectors. Repair or replace
modules with defective wires or cables.
Chassis
Dents, deformations, and damaged
hardware.
Straighten, repair, or replace defective
hardware.
Cleaning Procedure,
Interior
To clean the oscilloscope interior, perform the following steps:
1.
Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).
2.
Remove any remaining dust with a lint-free cloth dampened in isopropyl
alcohol (75% solution) and then wipe with a lint-free cloth dampened with
warm deionized water. A cotton-tipped applicator is useful for cleaning in
narrow spaces and on circuit boards.
STOP
. If, after performing steps 1 and 2, a module is clean on inspection, skip
steps 3, 4, and 5. Proceed with step 6.
3.
If steps 1 and 2 do not remove all the dust or dirt, all modules in the
oscilloscope except the Display Module and Front Panel Module may be
spray washed using a solution of 75% isopropyl alcohol.
During cleaning of the Acquisition board (Main board), make sure that
no residue is left in the attenuators. Debris or residue can cause several
problems with signal
fi
delity that cannot be corrected by calibration.
When handling the board, avoid handling the attenuators since skin oils
may cause problems.
Extensive cleaning of the Display Module is dif
fi
cult because water must
not be trapped between the display shield and the display. The polarizers
integrated into the display degrade with long-term exposure to water. The
display shield and display must be replaced as an assembly if signi
fi
cant
moisture or debris become trapped inside. Cotton tipped applicators and
52
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Содержание TDS1001C-EDU
Страница 12: ...Preface x TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 30: ...Specifications 18 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 32: ...Where to Find Operating Information 20 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 52: ...Performance Verification 40 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 60: ...Adjustment Procedures 48 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 85: ...Maintenance TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual 73...
Страница 96: ...Maintenance 84 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...
Страница 110: ...Replaceable Parts 98 TDS2000C and TDS1000C EDU Series Oscilloscope Service Manual...