ii
Time Delay vs Repetition
9
GPIB PROGRAMMING
Detailed Command List
10
Initialization Commands
10
Status Commands
10
Error Status Byte Definition
10
Instrument Status Byte Definition
11
Display Control Commands
12
Delay and Output Commands
14
Delays
14
Output Control
14
Trigger Commands
15
Store and Recall Commands
16
TROUBLESHOOTING
LCD Contrast
17
Cold-Boot
17
Quick Test
17
Output Levels
17
Jitter
17
GPIB Problems
18
CALIBRATION
Required Equipment
19
Calibration Procedure
19
Trigger Threshold Calibration
19
Optional 1 ppm Internal Timebase Calibration
19
Output Amplitude Calibration
20
Calibration Menus
20
Output Offset Calibration
21
Jitter Calibration
21
Jitter Cal Factor
21
Delay Cal Factor
21
CIRCUIT DESCRIPTION
Microprocessor System
22
IEEE-488 Interface
22
Keypad and LED Indicators
22
LCD Display
22
Output Ports on the Top PCB
22
Output Ports on the Bottom PCB
22
Port Address Decoding
23
Input Ports
23
Digital to Analog Converter
24
Timebase
24
