Specification guidelines for service use 6.
Specification guidelines for service use
BeoSound 4
With FM and RDS
Type 285 EU
230V
Type 2852 GB
230V
Type 2853 US
20V
Type 2854 JP
00V
Type 2855 AUS
240V
Type 2857 TWN
20V
Type 2858 KOR
230V
Type 2859 LAT
230V
Type 2860 CHK
230V
Preamplifier section
Intermod. distortion
≤
0.%, IHF
Frequency:
AUX in
20Hz – 20kHz
Signal to Noise ratio:
AUX, A-weighted, volume 80
≥
90dB, typ. 97dB
Channel separation
≥
50dB, typ. 63dB
Channel unbalance
≤
±dB
Tuner, FM section
FM range – EU/US
87.5 – 08MHz
FM range for type 2854 – Japan
76 – 90MHz
Usable sensitivity mono
≤
2dBf
50dB quieting sensitivity mono
≤
20dBf
Signal-to-noise ratio mono
≥
68dB, typ. 70dB
Signal-to-noise ratio stereo
≥
62dB, typ. 65dB
Frequency response mono
30Hz – 5kHz, ±2dB
Frequency response Stereo
30Hz – 5kHz, ±2dB
RDS
PS-Name, RadioText, Clock
Tuner, DAB section
Receiving bands
74 – 240MHz (band 3)
452 – 492MHz (band L)
Sensitivity (BER = 0e-4)
-95dBm
Adjacent channel rejection (BER =0e-4)
35dB
Out of band rejection (BER = 0e-4)
45dB
Signal/noise ration (kHz)
≥
95dB
Frequency response 5 – 20000Hz
±dB
Decoding
Up to 256kbit/s
Sampling
Half and full rate
IR operation
Beo4 recommended
CD player
Playback
CD-DA, CD-R/RW, (Audio format only)
Testdisc
SBC 444A (part no. 3634064)
SBC 429
CD, disc types
2cm (5”), 8cm (3”)
Frequency response
20Hz – 20kHz ±dB
Signal/noise ratio:
Linear, below 80kHz
≥
90dB / 76dB with volume 80
UNW
≥
98dB / 90dB with volume 80
A-Weighted
≥
03dB / 97dB with volume 80
Channel separation:
kHz
≥
85dB
20Hz – 20kHz
≥
75dB
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK
Содержание BeoSound 4 2851
Страница 19: ...Fault flow chart 2 11 Placement of magnet A B O C E N T E R v H E N R I K S E N S E L E K T R O N I K ...
Страница 20: ...2 12 A B O C E N T E R v H E N R I K S E N S E L E K T R O N I K ...
Страница 21: ...Service Mode 3 Not completed A B O C E N T E R v H E N R I K S E N S E L E K T R O N I K ...
Страница 22: ...3 Service Mode Not completed A B O C E N T E R v H E N R I K S E N S E L E K T R O N I K ...
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