46
12.2
Electrostatics Discharge (ESD)
E.S.D Test
This test follow the IEC 61000-4-2
Discharge Voltage Level :
Criteria
Contact Discharge (KV)
Air Discharge(KV)
Class C
±4
±4
Class B
±6
±8
Class A
±8
±15
Class A
:
Temporary degradation or loss of function or performance which requires
operator Intervention or system reset.
Class B
:
Temporary degradation or loss of function or performance which is self-
recoverable
Class C
:
Normal performance within the specification limits
Discharge times: 20 times for each discharge point, time interval 1 second.
In the case of acceptance tests, the test program and the interpretation of the test results are
subject to
agreement between manufacturer and user.
The test documentation shall include the test conditions and the test results.
Summary of Contents for AL922
Page 21: ...21 3 3 BLOCK DIAGRAM ...
Page 31: ...31 7 TROUBLESHOOTING 7 1 Main Procedure ...
Page 32: ...32 7 1 1 Power Circuit Troubleshooting ...
Page 33: ...33 7 1 2 Backlights Troubleshooting ...
Page 34: ...34 7 1 3 Performance Troubleshooting ...
Page 35: ...35 7 1 4 Function Troubleshooting ...
Page 38: ...38 Back Cover Cable Cover Gap 0 8 mm B 1 2 mm Base Cover Neck Cover Gap 0 8 mm C 1 2 mm ...
Page 42: ...42 WAVESHAPE ...
Page 48: ...48 APPENDIX A PARTS LISTS ...
Page 50: ...50 A 4 461A7830011 Firmware Ctrl Board VL 901 ...
Page 53: ...53 APPENDIX B DISPLAY UNIT ASSEMBLY ...
