Reliability test – BeStar BMS36016PC_W FR3_MG3-HT LF User Manual
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3. Reliability Test
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Speaker
BMS36016PC/W FR3/MG3-HT LF
程久生
丁小军
莫丽丽
08/08/07
BMS36016PC/W FR3/MG3-HT LF
DRG NO: BS/TES01.057B
05/04/21
A
莫丽丽
08/08/04
B
莫丽丽
Switch-on time(total) for 2nd control frequency : 17h (3060 cycles)
Including 9h (1620 cycles) at Tamb=+20°C
4.5h (810cycles) at Tamb=+85°C
3.5h (630cycles) at Tamb=-40°C
Then test with 10 cycles each at Tamb=-40°C and Tamb=+80°C
Switch-on time(total) for 1st control frequency : 60h (10800 cycles)
Including 42.5h (7650 cycles) at Tamb=+20°C
10h (1800 cycles) at Tamb=+85°C
7.5h (1350 cycles) at Tamb=-40°C
Then test with 10 cycles each at Tamb=-40°C and Tamb=+80°C
(equivalent to 180 cycle /h ) low or 1st control frequency is 600 Hz ,high or 2nd control frequecy
is 3000Hz .
V
PP
=5.6Vp-p rectangle pulse shape, alternating ON for 10 sec./ OFF for 10sec
3.1 Life :
3.2 Heat Test
Temperature +90
2
Duration 96hrs
3.3 Cold Test
Temperature -40
2
Duration 96hrs
3.4 Moisture Test
Temperature +40
2
Humidity 90%-95%RH
Duration 96hrs
After each test, all acoustic and electronical characteristic should be satisfied with specification.
After these and the following tests the values of loudness (±2dB) and sound (distortion)
must be within the specification.