A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
YSP-800
SCHEMATIC DIAGRAM (INPUT 1/2)
59
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
POINT
A-1 pin 6 of IC8
M62782GP
C71
220P
4.7
4.7
W801
10K
RF45710
10K
RF45710
10K
RF45710
10K
RF45710
10K
RF45710
INPUT(2)
INPUT(3)
INPUT(4)
INPUT(5)
VCR
L
R
L
R
SUBWOOFER
SYSTEM
CONNECTOR
(U, C, J models)
VIDEO
DVD
COAXIAL
AUDIO
INPUT
OUT
TV/STB
TV/STB
to RS-232C
Conversion Jig
AUX
DIGITAL
INPUT
OPTICAL
INPUT
SELECTOR
AMP
OSD
FL DRIVER
FL DISPLAY
FRONT SW
IR-IN
IC1
: TC74HCU04AFEL
Hex Inverters
1A
1Y
2Y
VCC
6A
1
2
3
4
11
2A
6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
4Y
8
9
10
GND
IC2, 801
: NJM2068MD-TE2
Dual OP-Amp
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
IC4
: TC4052BF
Analog Multiplexers/Demultiplexers
16
10
9
6
8
7
13
12
14
15
11
1
5
2
4
3
X-COMMON
0X
1X
2X
3X
0Y
1Y
2Y
3Y
Y-COMMON
VEE
VSS
INH
B
A
VDD
LOGIC LEVEL
CONVER
TER
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
IC5
:
µ
PC4570G2
Dual OP-Amp
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
IC6
: MAX3232CDWR
3-V TO 5.5-V MULTICHANNEL
RS-232 LINE DRIVER/RECEIVER
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C1+
V+
C1
C2+
C2
V
DOUT2
RIN2
VCC
GND
DOUT1
RIN1
ROUT1
DIN1
DIN2
ROUT2
IC7
: TC74HCT08AF
Quad 2-Input And Gate
Vcc
14
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
FLDI
VSYNCI
HSYNCI
VCC
VSS
EXS
XS
FSC4O
VSYNCO
HSYNCO
CSYNCO
VBLKO
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
PO3
PO2
DCOL5
DCOL4
DCOL3
DCOL2
DCOL1
DCOL0
DCLKO
DB
DH
RESET
48
47
46
45
44
43
42
41
40
39
38
37
YO
U
T
TESTI2
YIN
AV
S
S
2
CIN
A
V
CC2
COUT
AV
S
S
1
VO
U
T
A
V
CC1
VIN
TESTI1
13
14
15
16
17
18
19
20
21
22
23
24
FLDO
SYNCST
CS
SCLK
SIN
B
USY
XD
EXD
VSS
VCC
PO0
PO1
MB90050
VOUT
YOUT
COUT
PO3
PO2
PO1
PO0
SIN
SCLK
CS
VIN
YIN
CIN
VSYNCI
FLDI
SYNCST
HSYNCI
HSYNCO
VSYNCO
CSYNCO
FLDO
VBLKO
EXS
XS
FSC4O
EXD
XD
DCLKO
BUSY
RESET
DCOL5 to DCOL0
DB
DH
Serial input
control
Analog
switch
Sync control
Video signal
generator circuit
NTSC/PAL
signal
generator
circuit
Output control
Pallete
(4 bits
→
6 bits)
Display Memmory control
Font RAM
(8 characters)
Font ROM
(512 characters)
VRAM
(35 characters
×
16 lines)
4FSC clock
oscillation
circuit
Dot clock
oscillation
circuit
Port control
Each block
Each block
All reset
Each block
IC8
: MB90050PF
On-Screen Display Controller
52
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
G12
51
G13
50
G14
49
48
47
P38
46
P37
45
P36
XOUT
6
VDD
8
Vcc2
18
Vss
5
Vp
64
XIN
7
3
4
/RESET
1
P35
44
9
P1
P9
17
19
P10
Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35 bit x 166)
CGROM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
G1
63
53
G11
IC901
: M66003-0101FP
FL Display Driver
2
data
timing
clock
dot data
write
scan pulse
/CEFL
CKFL
DTFL
IC10
: NJM78M05FA
Voltage Regulator
INPUT
OUTPUT
COMMON
+
-
1.25V
R1
R2
5
4
SUPPLY VOLTAGE
OUTPUT
OSC
COUNTER
GND
1
3
SUB
2
(GND)
N.C.
OUTPUT
GND
SUPPLY
VOLTAGE
4
2
5
3
1
N.C.
SUB
(GND)
IC9
: M62782GP
Voltage Threshold Detector
M62782GP
Page 60
to INPUT(1)_CB505
J4
Page 57
to DSP_CB8
J4
P
age 57
to DSP_CB9
J5
P
age 60
to INPUT(1)_CB506
J6
5.8
5.8
5.8
5.8
11.7
3.3
3.2
2.8
2.6
4.4
4.4
4.4
4.4
5.0
0
5.0
5.0
5.0
0
0
0
3.2
5.0
0
0
1.8
4.9
4.9
4.9
5.0
4.9
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
5.0
3.3
3.3
-18.7
-22.7
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.5
-22.5
-22.5
-17.8
-17.8
-17.8
-17.8
-17.7
-17.7
-22.5
-22.6
-16.1
-16.1
-16.2
-16.2
-16.2
-14.6
-18.7
-24.3
-20.4
-22.4
-22.4
-16.2
-16.2
-16.1
-22.4
-22.4
-16.1
-14.6
-21.0
-21.0
-21.0
-21.0
-22.6
-16.2
-22.5
-22.5
-22.5
-22.5
-22.5
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.6
-22.7
-24.3
-22.5
-22.5
-22.5
-22.5
3.4
3.4
3.4
-16.2
-17.8
-17.8
-17.8
-22.5
-14.6
-17.9
-22.4
-22.4
-22.6
-16.1
-16.1
-16.2
-16.2
-16.2
-14.6
3.4
3.2
3.2
3.2
3.2
-20.9
-22.6
-22.6
-17.8
-17.8
-17.8
-19.4
-19.4
-22.6
-16.2
-16.2
-16.2
1.6
0
1.6
3.4
-17.7
-14.6
3.4
3.4
3.4
3.4
3.4
0
0
0
4.6
11.4
4.6
-22.4
-22.4
-14.6
-17.8
-17.8
-22.6
-22.6
-22.6
-22.6
-21.0
-21.0
-21.0
-21.0
-20.9
-19.4
-19.4
-16.2
-16.2
-16.2
-16.2
-16.2
2.5
5.1
5.4
5.5
0
0
0
3.3
3.3
0
0
0
5.4
3.2
5.0
6.9
6.9
5.1
0
0
0
0
3.3
4.9
3.3
5.1
0
5.1
0
0
5.1
5.1
5.1
5.1
1.4
1.4
4.8
6.6
0
11.1
0
4.9
2.5
1.7
0
0
0
0
0
0
0
0
0
0
4.9
4.9
4.9
4.9
1.9
1.8
0
4.9
4.9
4.9
4.9
1.8
0
11.7
5.6
5.6
11.1
0
0
0
0
0
0
11.1
11.1
11.1
11.1
0
0
0
0
0
0
0
11.1
11.1
0
5.8
5.8
11.1
5.8
6.4
5.8
5.8
6.4
6.4
8.4
8.4
5.4
5.4
6.4
1
5
2
4
12
14
15
13
7
6
5
1
4
9
8
11
4
10
13
2
1
12
3
5
6
7
14
14
3
1
2
4
5
9
1
3
2
4
6
7
5
8
10
6
8
7
13
11
14
8
2
3
3
8.3
8.4
6.4
5.8
5.8
5.4
5.8
5.8
5.8
5.8
5.8
0
0
0
0
A-1
Summary of Contents for YSP 800 - Digital Sound Projector Five CH Speaker
Page 81: ...YSP 800 81 YSP 800 8 9 0 A B 1 2 3 4 5 6 7 ...
Page 82: ...YSP 800 ...