CYBEX 750A - Service Manual

Service
Page 4-3
Cybex 750A/750AT Arc Trainer Service Manual
Service Diagnostics
Service diagnostics allows testing, monitoring or altering of unit controls and performance.
Open service diagnostics from Count Down, Lock, ID Entry or Dormant modes. Press PAUSE/END key to
exit.
Press CLEAR, key in 8-8-8 and press ENTER.
LED TEST
A quick LED test begins with lighting the following for three seconds each.
1. Bar Graph Matrix (BGM) LEDs
2. Text Area
3. Data Readout LED
“Key Test” will then be displayed.
KEY TEST
Test each key by pressing once. Each key press is recognized with a beep. If key is held, beep is
repeated or stuck key is indicated.
Press PAUSE/END to exit test and move forward in Test Mode.
STATIC I/O
“STATIC I/O” is displayed in Text Area.
1. Check software version
SHIFT/SCAN key displays the model and software version of the unit “750A VX.YY”.
X=Major Version and .YY=minor version.
2. Test heart rate display
Grasp heart rate grips to verify heart rate LED blinks and “CHR” is displayed. If testing
wireless heart rate, “WHR” displays.
3. Test Controller Communication
The two lower left decimal points of the incline/clock display blink to indicate receiving (left)
and transmitting (right) communication signals.
4. Test Network Communication
The upper right decimal points of the incline/clock display blink to indicate receiving (left) and
transmitting (right) CSAFE and/or AV Port Communication signals.
5. Repeat Display Test
Push PROGRAMS key to light up the entire Bar Graph matrix and Red RGB for three
seconds.
Push MANUAL key to light up the entire Text Area and Green RGB for three seconds.
Push ADVANCED key to light up the entire enunicator, Blue RGB and 7-segment displays for
three seconds.

CYBEX 750A Specifications

General

Type	Treadmill
Motor	3.0 HP
Incline Range	0% - 15%
Running Surface	20"
Warranty	1 year labor

Summary

Service Diagnostics

LED Test

Performs a quick test of all LEDs, including Bar Graph Matrix, Text Area, and Data Readout.

Key Test

Tests each key by pressing once, indicating status with a beep or repeated beep.

Static I;O Tests

Tests software version, heart rate display, controller, and network communication.

Drive Diagnostics

Navigation Keys

Details navigation keys for controlling brake torque, incline, and entering diagnostic modes.

Drive Diagnostics Menu Items

Lists and describes menu items for Brake ID, Incline Calibration, Load Calibration, and battery status.

Incline Calibration

Explains the process to calibrate incline by moving to maximum and storing values for 0% and 20%.

Load Calibration and Battery Status

Load Calibration

Details calibration of load or brake contribution via display interface and keypad entry.

Charge State

Describes real-time states of the battery charger, from OFF to potential problems.

Battery Voltage and Amps

Explains measurement of battery voltage (00.0-25.5V) and charge current (0.00-2.55A).

Battery Level and Power Source

Covers battery charge status levels and identifies power source (BATT, GEN, AC).

Microprocessor Temperature and Error Codes

Microprocessor Temperature

Details internal temperature measurement of the LCB microprocessor from 0-125 degrees C.

Code Version

Indicates the LCB's firmware version displayed as 'LCB CODE VX.XX'.

Error Code Listing

Provides a list of error codes, their meanings, and troubleshooting insights.