47
10.2 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 AL1931
Page 27: ...26 3 3 BLOCK DIAGRAM ...
Page 34: ...33 5 TROUBLESHOOTING 5 1 Main Procedure ...
Page 35: ...34 5 1 1 Power Circuit Troubleshooting ...
Page 36: ...35 5 1 2 Backlights Troubleshooting ...
Page 37: ...36 5 1 3 Performance Troubleshooting ...
Page 38: ...37 5 1 4 Function Troubleshooting ...
Page 44: ...43 WAVESHAPE ...
Page 50: ...49 APPENDIX A PARTS LISTS ...
Page 51: ...50 A FRU Board A 1 454AA030001 PCBA Key Board VK 903 ...
Page 52: ...51 A 2 461AA030001 Firmware CTRL Board VL 903 ...
Page 53: ...52 A 3 455AA030001 PCBA D D INV Board Vp 903 ...
Page 54: ...53 Appendix B DISPLAY Assembly ...
Page 55: ...54 ...
Page 58: ...57 ...
Page 60: ...60 Appendix C PCBA Assembly ...
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