MDX-C8970
22
22
4-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
Q903
LSW900,
LSW903 – 906,
LSW909 – 918
LED900 – 907,
LSW901, 902
05
107
RE-IN1
KEYACK
GREEN
76
54
BEEP
15
LCDANG
41
1
CE1
9
DATA
8
21
20
CLK
OSC-OUT
OSC-IN
7
KEY-IN1
RE-IN0
1
2
KEY-IN0
X1
X0
X1A
X0A
RC-IN0
RC-IN1
47
48
49 60
93
92
73
70
OE
10
74
KEY ACTIVE
SWITCH
Q523
BUZZER
DRIVE
Q504
OSC
D254
D282
Q902
VLC0 – VLC5
AMBER
2
P-ON
3
LED DRIVE
Q901
BUFFER
IC921
CONTRAST
SWITCHING
Q254, 255
P-ON +10V
SWITCH
Q904
LED B+
REGULATOR
Q971, 972
AD-ON
109
NOSE-SW
DOOR-SW
I
(Page 21)
TEL 5V
F
C
(Page 19)
(Page 21)
DSPCK, SA DATA
LOCK
LSW702, 900 – 906,
LSW909 – 918,
S900
S500
(NOSE DETECT)
ROTARY
ENCODER
RE900
5V
CN800
FRONT PANEL SIDE
BZ500
(BUZZER)
CN702
MAIN BODY SIDE
P-ON +10V
LCD +10V
BATT B+
LCD +10V
LCD +10V
9
10
LED DRIVE
Q900
11 – 6
VLC0 – VLC3
16 – 19
X500
3.68MHz
X501
32.768kHz
XTAL
EXTAL
85
86
X701
18.432MHz
R952
13
12
OSCOUT
OSCIN
OSC
R924
MASTER CONTROLLER
IC500 (3/4)
LIQUID CRYSTAL DISPLAY
DRIVE CONTROLLER
IC701 (1/2)
LIQUID CRYSTAL DISPLAY DRIVER
IC900
LIQUID CRYSTAL
DISPLAY DRIVER
IC920
26 – 90
SEG1 – SEG65
100 – 93
COM0 – COM7
LIQUID CRYSTAL DISPLAY
LCD900
25 – 80
SEG66 – SEG121
21 – 24
COM0 – COM3
VOLUME/BASS/
TREBLE/BALANCE/
FADER CONTROL
RE900
CNJ272
REMOTE IN
DIMMER
4
LED971 – 976
(LCD BACK LIGHT)
DOOR-IND
95
LED DRIVE
Q251
LCD-DATA
18
LCD-CLK
17
LCD-INH
14
LCD DATA
60
DOOR-SW
115
LCD SCK
64 66
LCD-CE
19
69
LCDINH
MD-LOCK
48
SP-SCK
63
SP-SI
DSPCK
SA DATA
61
SP-LAT
33
78
SP-LAT
LCD CE0
LCD CE1
LED706
(MD DISC SLOT),
LSW702
§
Summary of Contents for MDX-C8970
Page 4: ...4 SECTION 1 GENERAL This section is extracted from instruction manual ...
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Page 41: ...41 MDX C8970 4 22 SCHEMATIC DIAGRAM RELAY Board Page 39 Page 33 ...