Sangean WR-2, Service Manual

Page: 2 / 44

SPECIFICATION
FM. ELECTRICAL PERFORMANCE
Model: WR-2(CE)
Brand: SANGEAN
Temp: 25
℃
R. H. : 75 % Date:2005/5/20
Condition Value Test No.
Test Item
Input Output freq Nom. Lim. 1. 2.
Unit
S/N=6dB
Min 87.5
±
0.1
Tuning Range
S/N=6dB
Max 108
±
0.1
MHz
Intermediate freq.
S/N=6dB
10.7
±
0.1
MHz
90 6 12
98 6 12
Max. Sensitivity S/N=6dB
106 6 12
dB
μ
90 12 22
98 12 22
Usable Sensitivity
S/N=30dB
106 12 22
dB
μ
Image Rejection
127.4MHz
R.O. 106 32 26
dB
I.F. Rejection
10.7MHz S/N=6dB
90MHz 60 50
dB
3db Limiting(1mV) 98MHz 10 16 dB
μ
Min. output 60dB
μ
98MHz 0.5 3
mv
Auto Tuning Stop Sens. 98MHz 20 26 dB
μ
Current consumption 60dB
μ
98MHz 320 *400
mA
Spurious rejection
103.35MHz
Rated
output
98MHz 90 50
dB
S/N Ratio 60dB
μ
DIN Audio
98MHz 50 40
dB
Am. suppression 60dB
μ
98MHz 46 30
dB
Speaker8
Ω
98MHz 7 6
W
Mod 75kHz
**Output Power 100Hz
Load 32
Ω
10% THD
5+5 2+2
mW
T.H.D. (45KHz dev.) R.O. 98MHz 0.2 1
%
Over load capacity
10% THD
98MHz >106
dB
μ
100 LOW 8 6
VR=MAX
10K
HIGH
8 6
dB
100
LOW
10 8
Audio Fidelity(1K=0dB)
(W/Pre-emphasis)50uS
100/1K 10K/1K
VR=5mW
10K
HIGH
8 6
dB
Supply Voltage: AC 230V/50Hz
R.O
：
50mW
Load: 8 Ohm
Modulation: Dev.22.5kHz @400Hz
Remark:
( )
首件產品
( )
客戶抽測
( )
成品
( )
例行抽測
( )
業務樣品
( )
半成品
( )
新機種
( )
工程變更
Approved by
Released/Tested by
*
Current consumption at light on and position is max
2