Page 1
1-2
MTF
BOARD
TRAFO
PR I.
BOARD
TRA FO
SEC. B O ARD
MA IN
S
BO ARD
(/21/22
Only)
CO
MBI B O
ARD
F
R O NT
B O A
RD
CD BOARD
LOCATION OF PCBS
/21
Karaoke
News
RDS
Incredible Surround
Rotary Encoder (volume control) x
Jog Shuttle x
V oltage Selector x
Aux Input x
Digital Output
Headphone Socket x
Line Output
Subwoofer Output
Surround Output
Matrix Surround Loudspeakers
Standby - FTD Clock Display x
ECO Standby - Dark
Combi - Non-Cenelec Tuner x
Combi - Cenelec Tuner
VERSION VARIATIONS:
T ype /Versions: FWC270
Features &
Board in used:
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1-3
SPECIFICATIONS
GENERAL:
Mains voltage : 110-127V/220-240V
Switchable
Mains frequency : 50/60Hz
Power consumption : < 70W Active
< 20W at Standby
Clock accuracy : < 4 seconds per day
Dimension centre unit : 265 x 310 x 365mm
TUNER:
FM
T uning range : 87.5-108MHz
Grid 100kHz
IF frequency : 10.7MHz ± 20kHz
Aerial input : 75 -„¦ coaxial
Sensitivity at 26dB S/N : < 7 µV
Selectivity at 600kHz bandwidth : > 25dB
IF rejection : > 60dB
Image rejection : > 25dB
Distortion at RF=1mV, dev. 75kHz : < 3%
-3dB Limiting point : < 8 µV
Crosstalk at RF=1mV, dev. 40kHz : > 18dB
MW
T uning range : 531-1602kHz or
530-1700kHz
Grid : 9kHz or 10kHz
IF frequency : 450kHz ±
1kHz
Aerial input : Frame aerial
Sensitivity at 26dB S/N : < 4.4mV/M
Selectivity at 18kHz bandwidth : > 18dB
IF rejection : > 45dB
Image rejection : > 28dB
Distortion at RF=50mV, m=80% : < 5%
AMPLIFIER:
Output power : 2 x 40W
1) RMS
Frequency response within -3dB : 50Hz-15kHz
Dynamic Bass Boost : DBB ON, DBB 1, DBB 2,
2)
Digital Sound Control : Jazz, Techno, Optimal,
2)
Headphone output at 32-„¦ : 15mW ± 2dB
Input sensitivity, R
S = 600 -„¦
Aux / CDR : 500mV / 1.0V Mic :
{3.5mV }
CASSETTE RECORDER:
Number of track : 2 x 2 stereo
Tape speed : 4.76 cm/sec +2.5/-1.5%
W ow and flutter : < 0.35% DIN
Fast-wind/rewind time C60 : 130 sec
Bias system : 75kHz ± 5kHz
Rec/Pb frequency response
within 8dB :
80Hz - 12.5kHz
Signal to noise ratio Type I : > 48dBA
COMPACT DISC:
Measurement done at output conn. of the CDC module.
Frequency response within ± 1.5dB : 20Hz - 20kHz
Output level (in Vrms) : 550mV ± 2dB, R
out = 100 -„¦
Signal/Noise ratio (A-weighted) : > 80dBA
Distortion at 1kHz : < 0.003%
Channel unbalance at 1kHz : ± 1dB
Channel separation at 1kHz : > 60dB
De-emphasis : 0 or 15/50 mS (Switched on the disc)
1) 6-„¦, 1kHz, 10% THD
2) Frequency response in each setting is software controlled.
:
Rock
DBB 3 by subcode
