Mcx-Ca15 Block Diagram - Yamaha MCX-C15 Service Manual

A B
MCX-C15/MCX-CA15

MCX-CA15 BLOCK DIAGRAM

1
PCB D-AMP (4)
Audio IN(1)
AV IN IR Data IN
(CAT-5)
Video IN
Audio IN(2)
2
AUDIO IN
VR301 Sensing
Control
INPUT SENSE
PCB D-AMP (3)
3
SW201
D-AMP Reset
Reset SW
SW101
Mode Select
Mode SW
4
PCB D-AMP (1)
DC +12V
DC IN
5
32
6
C
• See page 42 → SCHEMATIC DIAGRAM
IC203
CH1
14,17
Selecter
Volume
CH2
9,22
&
Tone
LC75342 IC202
IC304
2
Audio Sensing 3
Circuit
1
AUDIO IN Detect
Audio Detect
IR Bus
VIDEO OUT
D E
MCX-CA15
14,47
10,21
Digital AMP
YDA-135
IC105
36 33
19
34
MUTE Control
44
3,4 Power Control IN/OUT
CPU
IC201
5
40,41
1, 2
uPD789022GB
22
IC205
Power
Circuit
F G
PCB D-AMP (3)
RY101
L.P.F.
Q101, 102
PCB D-AMP (1)
L.P.F.
Q103
LED Control
IR OUT
DC +12V IN/OUT
H
SPEAKER OUT
AUDIO OUT
SUB WOOFER OUT
PCB D-AMP (4)
CONTROL IN/OUT
CONTROL OUT(MODE A/B)
CONTROL IN(MODE C)
STATUS LED
PCB D-AMP (3)
IR/CTRL
IR OUT(MODE A)
CONTROL IN(MODE C)
PCB D-AMP (2)
Video OUT
DC IN/OUT
PCB D-AMP (3)