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4-12
Troubleshooting
Model 2520 Pulsed Laser Diode Test System Service Manual
Figure 4-4
Digital circuitry block diagram
Data From A/D
Converters
To Current and Voltage
Source Control DACs
ROM
U3, U4
RAM
U2, U17
Reset
E PROM
U13
2
DSP
U47
Microprocessor
U15
Serial
Interface
U20
GPIB
U5, U6
U19
RS-232 Interface
IEEE-488 Interface
To Display
Board Controller
Trigger
U46,
Q6-Q11
Digital I/O
U35
Trigger
Link
Digital
I/O
16.78MHz
SRAM
U27, U29
U38-U42,
U49
Содержание 2520
Страница 10: ......
Страница 13: ...1 PerformanceVerification...
Страница 30: ......
Страница 31: ...2 Calibration...
Страница 68: ...2 38 Calibration Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 69: ...3 RoutineMaintenance...
Страница 72: ...3 4 Routine Maintenance Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 73: ...4 Troubleshooting...
Страница 90: ...4 18 Troubleshooting Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 91: ...5 Disassembly...
Страница 98: ...5 8 Disassembly Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 99: ...6 ReplaceableParts...
Страница 116: ...6 18 Replaceable Parts Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 117: ...A Specifications...
Страница 121: ...B CalibrationReference...
Страница 132: ...B 12 Calibration Reference Model 2520 Pulsed Laser Diode Test System Service Manual...
Страница 136: ......