A
B
MDX-E100
SCHEMATIC DIAGRAM (MAIN)
1
5.0
0
0
5.0
0
P-E48/J46
[K-7]
2
2.0
~
~
~
~
~
REGULATOR
3.1
3.2
5.0
3.5
3.5
0
3
P-E50/J48
[F-2]
4
5.0
DIGITAL INPUT SELECTOR
0
5.0
0
5
0
0
0
0
0
0
0
0
0
MAIN CPU
0
0
0
0
0
0
0
0
0
5.0
6
0
0
0
0
0
0
0
0
0
0
0
7
Point q
(Pin 13 of IC106)
V : 2V/div
H : 50 nsec/div
DC range
1 : 1 probe
8
0V
E-49/J-47
C
D
E
LPF
0
6.0
0
0
0
0
0
-6.0
6.0
3
8
0
1
0
0
2
6
0
7
0
0
4
5
-6.0
MUTE CONTROL
4.2
4.2
4.2
4.9
-6.0
0
4.9
-6.0
5.0
5.0
4.9
0
5.0
4.9
0
6.0
0
w
0
q
RESET
0
0
4.9
4.9
2.4
0
6.4
0
2.1
5.0
5.7
0
5.0
~
4.3
4.5
0
0
0
0
0
0
5.0
0
EEPROM
0
0
0
5.0
5.0
1.2
1.2
0
5.0
0
0
-22.2
5.0
-22.9
-22.9
0
-22.9
-22.9
-23.5
4.9
-22.9
-29.3
4.2
Point w
CH1 : Pin 12 of IC106
V : 2V/div CH1
CH2 : Cathode of D112
V : 5V/div CH2
H : 0.5 sec/div
DC range
1 : 1 probe
CH 1
CH 2
AC CORD : ON
AC CORD : OFF
F
G
MUTING
0
0
-5.9
-5.9
0
0
0
0
-5.9
-5.9
0
0
6.0
0
0
0
0
0
0
-6.0
POWER SUPPLY
-13.4
-13.4
-12.7
10.3
10.9
10.9
10.9
6.4
w
AC20.6
10.9
10.3
10.8
5.0
AC4.16
10.3
5.6
5.6
0
0
-29.9
-13.4
-29.3
-32.9
-22.9
-32.9
-22.9
IC108 : M5290P
Constant-Voltage Tracking Supply with Reset
VCC
E– C+
Point e
(Pin 58 of IC301)
16
15
H : 0.2 µsec/div
V : 2V/div
DC range
1 : 1 probe
REFERENCE
REGULATOR
GND
9
0V
ON/OFF
ON/OFF
10
CONTROL
1
–VCC
H
I
e
-27.0
-27.0
-27.0
-27.0
FL DRIVER
-27.0
-27.0
-27.0
-27.0
-27.0
~
~
~
OUTPUT
NC
(+5V)
DELAY
14
13
12
7
REFERANCE
11
IN
8
RESET OUT
CURRENT
PROTECTION
CONTROL
+
BAL. ADJ.
6
CURRENT
CURRENT
CONTROL
CONTROL
3
2
4
5
E–
C–
NC
OUTPUT
(–5V)
J
K
L
IC101 ~ 103 : NJM2068MD
IC104 : TC74HCT04AF
Dual OP-Amp
Hex Inverters
1A
1
14
V
DD
OUT
1
1
8
+V
CC
1Y
2
13
6A
–IN
2
7
OUT
1
2
2A
3
12
6Y
+
–
+
–
+IN
3
6
–IN
2Y
4
11
5A
1
2
–V
4
5
+IN
3A
5
10
5Y
CC
2
3Y
6
9
4A
7
V
SS
8
4Y
IC105 : TC74HC153AF
Dual 4 to 1 Data Selectors
STROBE
A
DATA INPUTS
OUTPUT
VCC
2G
SELECT
2Y
16
15
14
13
12
11
10
9
2C3
2C2
2C1
2C0
2Y
2G
B
B
A
A
B
B
A
A
1G
1C3
1C2
1C1
1C0
1Y
1
2
3
4
5
6
7
8
STROBE
B
OUTPUT
GND
DATA INPUTS
1G
SELECT
1Y
OUTPUT
INPUTS
SELECT
STROBE
Y
B
A
G
X
X
H
L
L
L
L
C0
H
L
L
C1
H
L
L
C2
H
H
L
C3
IC107 : X24C01P
Electrically Erasable PROM
~
~
~
VCC
START
8
H.V.GENERATION
~
CYCLE
TIMING &
~
VSS
4
CONTROL
~
SDA
START
~
5
STOP
~
LOGIC
CONTROL
E PROM
2
~
XDEC
32
LOGIC
32X32
~
SCL
6
LOAD
INC
~
~
5
32
WORD
2
~
ADDRESS
YDEC
NC
1
COUNTER
~
NC
2
8
~
CK
NC
3
~
PIN
DATA REGISTER
NC
7
D
OUT
D
OUT
ACK
IC301 : LC75710NE
FL Driver
G6
49
32
AM32
G5
50
31
AM31
G4
51
30
AM30
G3
52
29
AM29
G2
53
28
AM28
G1
54
27
AM27
VFL
55
26
AM26
TEST
56
25
AM25
VSS
57
24
AM24
OSCO
58
23
AM23
OSCI
59
22
AM22
VDD
60
21
AM21
RES
61
20
AM20
CE
62
19
AM19
CL
63
18
AM18
DI
64
17
AM17
CG
DI
ROM
SHIFT
CL
DC RAM
AM1
REGISTER
CG
AM2
CE
ROM
ADDRESS
ADDRESS
AD
VDD
AM35
REGISTER
COUNTER
RAM
AA1
VSS
BLINKCYCLE
BLINK
AA2
REGISTER
GENERATOR
AA3
VFL
AA4/G16
RES
DISPLAY
DISPLAY
REGISTER
CONTROL
AA5/G15
AA6/G14
TEST
DUTYCYCLE
DUTY
AA7/G13
REGISTER
GENERATOR
AA8/G12
G11
GRID
GRID
G10
REGISTER
CONTROL
INSTRUCTION
CONTROL
DECODER
OSC I
G2
TIMING
OSC
DIVIDER
DECODER
G1
GENERATOR
OSC O
* All voltages are measured with a 10MΩ/DC electric volt meter.
* Components having special characteristics are marked Z and must be
replaced with parts having specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.