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Theory of Operation
TDS6000 Series Service Manual
3- 3
NLX Riser Board.
Both processor systems, the floppy drive, CDROM-RW drive,
and hard drive are connected together by, and communicate through, the riser
board.
The hard drive and CDROM-RW provide access to stored waveform data and
software to customize your oscilloscope with your measurement needs. The
GPIB allows for external control of the oscilloscope.
You can make hardcopies on the GPIB, RS-232, and Centronics ports. Other
ports from the CPU board: PC cardbus x 2, and cal adjust lock.
The NLX board has one USB port and one serial port on the rear panel. The
NLX has 2 USB channels, but one is used internally, routed to the riser board,
and is not available for use. The NLX has one serial port, which is routed to the
rear panel. A microphone input and earphone output exist on the NLX rear panel.
Ethernet connector is RJ-45. Keyboard and mouse are both PS/2.
The low voltage power supply is a switching power converter with active power
factor control. It supplies power to all of the circuitry in the oscilloscope.
The principal
POWER
switch, located on the rear panel, controls all power to
the oscilloscope including the Low Voltage Power Supply. The
ON/STBY
switch, located on the front panel, also controls all of the power to the
oscilloscope except for part of the circuitry in the standby power supply.
The power supply sends a power fail (~PF) warning to the processor system if
the power is going down.
Power is distributed throughout the oscilloscope through the front and rear power
distribution bus boards.
The fan assembly provides forced air cooling for the oscilloscope. The fans are
controlled by the CPU and microprocessor.
Rear Panel
Low Voltage Power Supply
Fans
Содержание TDS6404
Страница 4: ......
Страница 14: ...Table of Contents x TDS6000 Series Service Manual...
Страница 18: ...Service Safety Summary xiv TDS6000 Series Service Manual...
Страница 52: ...Operating Information 2 12 TDS6000 Series Service Manual...
Страница 56: ...Theory of Operation 3 4 TDS6000 Series Service Manual...
Страница 60: ...Performance Verification 4 4 TDS6000 Series Service Manual...
Страница 84: ...Performance Tests 4 28 TDS6000 Series Service Manual...
Страница 150: ...Adjustment Procedures 5 2 TDS6000 Series Service Manual...
Страница 156: ...Maintenance 6 6 TDS6000 Series Service Manual...
Страница 170: ...Removal and Installation Procedures 6 20 TDS6000 Series Service Manual...
Страница 228: ...Repackaging Instructions 6 78 TDS6000 Series Service Manual...
Страница 232: ...Options 7 4 TDS6000 Series Service Manual...
Страница 234: ...Electrical Parts List 8 2 TDS6000 Series Service Manual...
Страница 252: ...Mechanical Parts List 10 16 TDS6000 Series Service Manual...