Philips FWT9200 Series, Руководство по обслуживанию

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A4
CHECK DATE :
NAME : Andy Lai 12 9 SH 190 -9
21-Dec-12
2
Issued Date
1
Class No
FWT9200 All Version
Ver
3
testing with 20 to 20k Hz filter
USB SPECICFICATION
Remarks :
dB
Microphone Frequency response at
volume 23,input leven 1mv rms,
connect main load
)/)5FK
dB
.+= ref dB
.+=
±3
mV
Vol.min=vol1.(mic vol min,main vol 1) 2 4 mV
±4
Max Hum Noise(mic vol max,main vol max) 6 8
+=
45 40 dBA
Microphone input leven ( Rms) 1 1.5 mV
dBA
Microphone Power output( RMS ) 550 +/- 20% mW
( 0 dB, 1 KHz ) N/A
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted )
Channel Crosstalk ( ( 0 dB, 63Hz ) ) N/A
Specification
THD + Noise ( 0dB, 1Khz )vol max 6 8 %
Output Voltage RL = 33 k ohm ( )dB, 1 Khz ) N/A
Channel Unbalanceo about( mic1 and mic2)
Output Resistance N/A
1 +/- 3
Nom Lim Unit
GENERAL PART
Measurement are directly done at the connector Microphone(mic1,mic2)
Description
TECHNIAL DESCRIPTION
Microphone
See also SH 190 testing with 20 to 20k Hz filter,input leven 1mv rms(lim:1.5mv rms) Rs=600ohm output 500mW
Measurment are directly done at the coonector on the board
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