
1-3
SPECIFICATIONS
GENERAL:
Mains voltage : 120/240V
±
15% Switchable for /21
120V
±
10% for /37
230V
±
10% for /22/25
240V
±
10% for /30
Mains frequency : 50/60Hz
Clock accuracy
: < 4 seconds per day
Dimension centre unit : 250 x 245 x 96 (mm)
Power consumption
Active
: 15W for /21/22/25/37/30
Standby
: < 6W (DEMO mode off)
ECO Power Standby
: < 1W for /22/25
TUNER:
FM
Tuning range
: 87.5-108MHz
Grid
: 50kHz
100kHz for /21/37
IF frequency
: 10.7MHz
±
20kHz
Aerial input
: 75
Ω
coaxial
300
Ω
for /37
Sensitivity at 26dB S/N
: < 22dBf
Selectivity at 300kHz bandwidth
: > 33dB
Image rejection
: > 20dB [> 25dB]
Distortion at RF=1mV, dev. 75kHz
: < 3%
-3dB Limiting point
: < 23.5dB
Crosstalk at RF=1mV, dev. 40kHz
: > 26dB
MW
Tuning range
: 531-1602kHz
530-1700kHz for /21/37
Grid
: 9kHz
10kHz for /21/37
IF frequency
: 450kHz
±
1kHz
Aerial input
: Frame aerial 18.1
µ
H
Sensitivity at 26dB S/N
: < 4.0mV/M
[> 3.25mV/M]
Selectivity at 300kHz bandwidth
: > 20dB
IF rejection
: > 24dB
Image rejection
: > 20dB [> 28 dB]
Distortion at RF=50mV, M=80%
: < 5%
AMPLIFIER:
Output power
L & R
: 2 x 5W FTC (4
Ω
, 1kHz, 10% THD)
Frequency response within -3dB
: 60Hz-14kHz
Digital Sound Control (DSC)
: Jazz / Rock / Pop / Classic
Dynamic Bass Boost (DBB)
: Jazz / Rock / Pop / Classic
Input sensitivity
Aux in (at 1kHz) : 500mV at 600
Ω
Output sensitivity
Headphone output at 32 ohm : 15mW
±
2dB (Max. vol.)
COMPACT DISC:
Frequency response within
±
3dB : 63Hz - 14kHz
Output level (in Vrms)
: 500mV, Z
out
= 100
Ω
Signal/Noise ratio (A-weighted) : > 67dBA
Distortion at 1kHz
: < 0.02%
Channel unbalance at 1kHz
: <
±
2dB
Channel separation at 1kHz
: > 30dB
Emphasis
: 15/50
µ
S (switched
automatically by CD10)
THD Noise(1kHz)
: < 1.5%
Outband Attenuation
: > 35dB
[....]
Values indicated are for /22/25 only.
Summary of Contents for MC230
Page 14: ...5 1 5 1 SET WIRING DIAGRAM ...
Page 15: ...POWER BOARD TABLE OF CONTENTS Circuit Diagram 6 2 PCB Layout 6 3 6 1 6 1 ...
Page 16: ...6 2 6 2 CIRCUIT DIAGRAM ...
Page 17: ...6 3 6 3 LAYOUT DIAGRAM POWER BOARD COMPONENT SIDE LAYOUT DIAGRAM POWER BOARD SMD SIDE ...
Page 19: ...CIRCUIT DIAGRAM FRONT BOARD 7 2 7 2 ...
Page 21: ...7 4 7 4 LAYOUT DIAGRAM KEY_C BOARD COMPONENT SIDE LAYOUT DIAGRAM KEY_C BOARD SMD SIDE ...
Page 23: ...MAIN BOARD CIRCUIT DIAGRAM 8 2 8 2 ...
Page 24: ...8 3 8 3 MAIN PCB COMPONENT LAYOUT ...
Page 25: ...MAIN PCB COMPONENT LAYOUT 8 4 8 4 ...
Page 28: ...CIRCUIT DIAGRAM DISPLAY BOARD 9 2 9 2 ...
Page 29: ...LAYOUT DIAGRAM DISPLAY BOARD COMPONENT SIDE 9 3 9 3 LAYOUT DIAGRAM DISPLAY BOARD SMD SIDE ...