Non-Warranty Service ........................................................................ 30
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Users Manual Model 3600
Introduction
Congratulations on the choice of Global Specialties Model 3600. This
32 channel Logic Analyzer observes and measures digital signals in
digital information processing. It captures and displays many signals at
once, and analyzes their timing relationships. Use its internal clock, or
connect up to 2 external clocks for sampling rate variability. This logic
analyzer will prove to be a versatile tool to help in digital hardware
debugging and verifying circuit designs. Model 3600 operates as a
stand-alone unit or connected to a computer via USB interface.
1) Review the following safety precautions to avoid injury and
prevent damage to this product or any products connected to it.
To avoid potential hazards, use this product only as specied.
2) Only qualied personnel should perform service procedures.
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Users Manual Model 3600
3) Use Proper Power Cord. Use only the power cord specied for
this product and certied for the country of use.
4) Ground the Product. This product is grounded through the
grounding conductor of the power cord. To avoid electric shock,
the grounding conductor must be connected to earth ground.
Before making connections to the input or output terminals of
the product, ensure that the product is properly grounded.
5) Observe All Terminal Ratings. To avoid re or shock hazard,
observe all ratings and marking on the product. Consult the
product manual for further ratings information before making
connections to the product.
6) The common terminal is at ground potential. Do not connect
the common terminal to elevated voltages.
7) Do not apply a potential to any terminal, including the
common terminal, that exceeds the maximum rating of that
terminal.
8) Use Proper Fuse. Use only the fuse type and rating specied
for this product.
9) Do Not Operate With Suspected Failures. If you suspect there
is damage to this product, have it inspected by qualied service
personnel.
10) Do Not Operate in Wet/Damp Conditions.
11) Keep Product Surfaces Clean and Dry.
12) Provide Proper Ventilation.
Theory of Operation
To sample an external signal source, the external signal is sent into
the positive input port of the high-speed comparator via the input
circuitry. The threshold circuit generates a threshold voltage according
to the set values, and sends the voltage to the negative input port of
the high-speed comparator. A TTL level digital signal is generated by
the comparison of the 2 signals and then the digital signal is stored
synchronously in the data ip-latch by sampling clock. When sampling
the internal code, the code generator will produce 30 channels of
internal digital signals which are stored synchronously in the data iplatch by sampling clock. The sampling data in the data ip-latch are
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Users Manual Model 3600
stored in high-speed memory according to appointed addresses.
Selecting the internal clock timing sampling will set the cycle of the
sampling clock. State sampling with the external clock will select the
phase of the sampling clock.
During the sampling storage period, a “sequence add 1 counter ”
supplies the storage address for the high-speed memory in the memory
control circuit, each sampling clock makes the memory change to a new
writing address. At the same time the ip-latch sends new sampling
data, creating a new data point stored in memory. The start-up and
end of the address counter is determined by the memory control
circuit according to the parameters set by the triggering process. After
sampling storage, the microcontroller unit reads a series of data and
sends them to the LCD to display the timing waveform and data list.
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Users Manual Model 3600
3600 LOGIC ANALYZER
MODEL
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Reset
Model 3600 Front Panel
1))ON / Off power switch
2))Display screen
3))Display control pushbuttons
4))Data entry input pushbuttons
5))Cursor control pushbuttons
6))Sample rate pushbuttons
7))Function Selection pushbuttons
8))Signal input connector, Channels 0 through 15
9))Signal input connector, Channels 16 through 31
10) Cursor Adjust knob
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Users Manual Model 3600
AC 100-240V 1A
REPLACE FUSE
AS SPECIFIED
DISCONNECT POWER CORD
BEFORE REPLACING FUSE
USBRS-232
Model 3600 Back Panel
1)AC power source outlet
2)RS232 interface
3)USB device interface
Keyboard Description
There are 34 pushbuttons on the front panel divided into these groups:
Display Control, Function Selection, Data Entry, Cursor Control, and
Sample Rates.
Display Control
Display: display timing waveforms or data lists in cycle.
↑ ↓: use the knob to roll timing waveforms and data lists up and down
← →: use the knob to roll timing waveforms and left and right
Zoom: use the knob to zoom timing waveforms
Find: nd and display the data points suited the search conditions
Data Entry
(11 pushbuttons for Number input, 4 pushbuttons for Input control, 1
pushbutton for Language)
Number Input:
【0】【1】【2】【3】【4】【5】【6】【7】【8】【9】: number input;
【x】: special characters x, only used for data search input
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Users Manual Model 3600
Input Control
【↑】【↓】: select the setting parameters up to down in cycle
【←】: backspace, to delete the input data when the input hasn’t
nished
【Shift】: used for inputting the English letters above the button
【Language】: English only
Cursor Control and Adjust knob
【Cursor 1】: use the knob to move the cursor1 left and right
【Cursor 2】: use the knob to move the cursor2 left and right
Sample Rates
Run/Stop: circular run/stop recycling sample
Single: single sample
Reset: initialize the instrument and resume the default
parameters settings
Function Selection
Channel: select and set the sequence order, name, color and
switch of each channel in cycle.
Threshold: select and set the threshold voltage.
System: select and set the system parameters.
Trigger: select and set the parameters and the switch in the
trigger process.
Time/State: select the mode of timing sample or state sample in
cycle
Source: select internal code generator or external signal source
in cycle.
Save: save the current setting parameters.
Recall: recall the last saved setting parameters
Display Description
The top row of the display screen indicates chosen function. There are 3
types of display interface described below.
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Users Manual Model 3600
Waveform Interface Display
The Waveform Interface displays 8 channels of timing waveforms,
the serial number and the name of the waveform and includes four
different vertical cursor lines in varied colors. There is one scale on the
top of the waveform frame, and another one is on the bottom of the
waveform frame. These are the zoom scales. The time value of every
scale varies with the zoom coefcient. Below the waveform frame
is the parameters display frame, the six parameters on the left is the
state parameters which varies automatically with different operations,
showing the current state of the equipment. The six parameters on the
right is the parameters settings of the system and can be set with the
numeric pushbuttons.
Data Interface Display
The data interface displays 19 rows of data. Each row is one sampled
data point in memory, corresponding to 32 sample channels. The three
columns of data from left to right is the address of data, the data
value in Decimal (Dec), the data value in Hex, the data value in Binary
(Bin). The parameters display frame is below the data lists frame, the
three parameters on the left are the state parameters which changes
automatically with different operations, showing the current state
of the instrument. The 2 parameters on the right are the parameters
settings of the system and can be set with numeric pushbuttons.
Trigger Interface Settings
The trigger interface displays the whole trigger process. It utilizes a
graphical display mode to easily illustrate the entire triggering process.
The panes in the display interface are the nodes of the trigger process.
The connecting lines among the panes show the direction of the trigger
process, six parameters can be set on the right, the left side has six
switches for setting. The specications of these settings are explained
later in this manual.
Operating Instructions
Initialization
Turn on the Model 3600 using the front panel ON/OFF pushbutton. The
model number and the manufacturer of the instrument will rst be
seen on the display. Operate the initialization program by loading the
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