Philips FWT9200 Series, Руководство по обслуживанию

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USB AND SD-CARD SPECICFICATION
Electrical Parameters are to be measured at speaker teminals across 3 ohm load with 500mW output and DSC setting in Jazz Mode
Channel Unbalance ( 0 dB, 1 KHz ) < +/- 3dB
CHECK
10
Ver
A4
DATE :
SH 190 -8 NAME : Andy Lai 10
Issued Date
21-Dec-12
Class No
FWT9200 All Version
2
3
1
SD-CARD Measurement at Set Level (*2)
Remarks :
Signal to Noise Ratio ( 0 dB, 1 KHz )
Signal to Noise Ratio ( 0 dB, 1 KHz ) >= 55dBA ( A - weighted )
Channel Unbalance ( 0 dB, 1 KHz )
USB Measurement at Set Level (*2)
Electrical Parameters are to be measured at speaker teminals across 3 ohm load with 500mW output and DSC setting in Jazz Mode
Description Specification
Channel Crosstalk ( 0 dB, 1 KHz )
FWT9200 Frequency response
@±4
40HZ-16KHZ(reference 1KHZ)
40HZ-100HZ(Reference 63HZ)
200HZ-16KHZ(Reference 1KHZ)
>= 45dB (with 1 KHz filter )
>= 55dBA ( A - weighted )
Description
Channel Crosstalk ( 0 dB, 1 KHz ) >=45dB (with 1 KHz filter )
Specification
< +/- 3dB
THD + Noise ( 0dB, 1Khz ) <=2%
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 55dB( A - weighted )
Channel Crosstalk ( ( 0 dB, 1 KHz ) ) >= 45dB
( 0 dB, 1 KHz ) >= 45dB
Measurement are directly done at the connector on CDC board
$OOVSHDNHU5FKDQQHOFRQQHFWWRHTXLSPHQWIRU
PHDVXUHPHQW
$OOVSHDNHU/FKDQQHOFRQQHFWWRHTXLSPHQWIRUPHDVXUHPHQW
EHFDXVHDOO/FKDQQHORXWSXWDUHUHYHUVH
Description Specification
Output Resistance
< = +/- 3 dB
1 - 11
Output Voltage RL = 33 k ohm ( )dB, 1 Khz ) 830mV/- 1dB
< = 1.5 kOhm
Channel Unbalance
TECHNIAL DESCRIPTION
USB
See also SH 190 USB Audio Module (300605)
Measurment are directly done at the coonector on the board
GENERAL PART