MDX-C7970/C7970R
– 29 –
– 30 –
4-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
LED501 – 505,
LSW532, 536
LSW512 – 521, 531,
LSW533 – 535, 537, 538
LED510, 511
(LCD BACK LIGHT)
05
37
RE-IN1
D-BASS IN
KEYACK
79
DOOR-SW
12
BEEP
15
LCDANG
40
LCD-DATA
18
LCD-CLK
17
21
20
LCD-CE
OSC OUT
OSC IN
19
50
KEY-IN1
RE-IN0
106 107
KEY-IN0
X1
X0
X1A
X0A
RC-IN0
RC-IN1
46
47
49 72
93
92
73
LCD SO
13
LCD CKO
14
LCD CE
104
74
KEY ACTIVE
SWITCH
Q905
BUZZER
DRIVE
Q701
OSC
REGULATOR
Q507
LED DRIVE
Q503, 505
LED DRIVE
Q504, 506
D912
VOL+
VOL–
D900
VLC0 – VLC5
REGULATOR
Q501, 502
POWER-ON
3
4
GREEN
1
AMBER
2
CONTRAST
SWITCHING
Q901
AD-ON
LSW512 – 521,
LSW531 – 538,
LSW890, S502
ROTARY
ENCODER
RE501
5V
CNP501
FRONT PANEL SIDE
BZ1
(BUZZER)
CN901
MAIN BODY SIDE
LCD +10V
LCD +10V
1
2
(LSW533: MDX-C7970R only)
(LSW533: MDX-C7970R only)
S501
D-BASS
11 – 6
X700
3.68MHz
X701
32.768kHz
R561
LIQUID CRYSTAL DISPLAY DRIVER
IC501
MASTER CONTROLLER
IC700 (3/4)
LCD501
LIQUID CRYSTAL DISPLAY
SEG1 – SEG65
100 – 93
26 – 90
COM0 – COM7
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
RE501
J900
REMOTE IN
17
NOSE-SW
S901
(NOSE DETECT)
DIM-ON
Summary of Contents for MDX-C7970/C7970R
Page 4: ... 4 SECTION 1 GENERAL This section is extracted from instruction manual ...
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Page 41: ... 61 4 20 SCHEMATIC DIAGRAM SUB Board MDX C7970 C7970R Page 54 Page 57 ...
Page 48: ... 68 6 IC700 X1 KEY Board 1 IC801 º OSC IN 5 8 Vp p 271 ns 2 8 Vp p 3 5 µs ...