Table of Contents
Advertisement
A
B
DSP-A5
SCHEMATIC DIAGRAM [INPUT (2/2)]
1
EXT. DECODER
SURROUND
INPUT
2
3
COAXIAL SIGNAL DETECTOR
0
0
4.7
0
4.7
2.5
3.0
3.0
0
0
DVD/LD
0
0
COAXIAL
0.3
0
0
CBL/SAT
4
COAXIAL
0
0
0
3.0
3.0
2.4
4.7
0.3
0
0
4.7
DIGITAL
0
SIGNAL
DIGITAL IN
4.1
DVD/LD
0
OPTICAL
4.7
0.1
D–TV
0
OPTICAL
5
4.7
0.1
CBL/SAT
0
OPTICAL
4.7
IC371,372: TC74HCU04AP
IC373,374: TC74HC00AP
Hex Inverters
Quad 2-input NAND Gate
6
1A 1
1A 1
14 V
DD
1B 2
1Y 2
13 6A
1Y 3
2A 3
12 6Y
2A 4
2Y 4
11 5A
2B 5
3A 5
10 5Y
2Y 6
3Y 6
9 4A
GND 7
Vss 7
8 4Y
7
IC101 : TC9273N-004
IC102 : LC78213
Analog Function Switch
Analog Function Switch
S1
2
27
S1
S2
3
26
S2
S3
4
25
S3
S4
5
24
S4
(L-ch)
(R-ch)
S5
6
23
S5
10-BIT
SAME
S6
7
22
S6
LATCH
AS L-ch
S7
8
CIRCUIT
CIRCUIT
21
S7
S8
9
20
S8
8
S9
10
19
S9
S10
11
18
S10
S11
12
17
S11
LEVEL SHIFTER+SHIFT REGISTER
13
14
15
16
GND
CK
DATA
STB
E-49/J-47
C
D
E
COAXIAL/OPTICAL SELECTOR
DIGITAL
INPUT
4.7
4.7
SELECTOR
0.3
4.7
4.7
0
4.7
0
0
0
4.7
0
4.7
4.7
0
4.1
0.1
4.7
0
4.7
0
4.7
0
4.7
4.7
0
0
4.7
4.7
0.3
4.7
4.7
IC395 : HD74HC153P
Dual 4 to 1 Data Selectors
14 Vcc
INPUTS
SELECT
B
A
13 4B
X
X
L
L
12 4A
L
H
H
L
H
H
11 4Y
H: High Level
L: Low Level
10 3B
X: Don't care
9 3A
8 3Y
IC103 : LC78212
Analog Function Switch
L1
1
30
R1
L2
2
29
R2
L3
3
28
R3
LCOM1
4
RCOM1
27
L4
5
26
R4
L5
6
25
R5
L6
7
24
R6
LCOM2
8
23
RCOM2
L7
9
22
R7
L8
10
21
R8
LCOM3
11
20
RCOM3
V
19
LEVEL SHIFTER
DD
Vss
16
14
D1
LATCH
V
EE
12
15
CL
RES
18
SHIFT RESISTER
13
CE
S
17
F
G
S VIDEO SELECTOR & AMP
MONITOR
OUT
S VIDEO
SIGNAL
IN
VCR
OUT
VIDEO SELECTOR & AMP
MONITOR
OUT
VIDEO
SIGNAL
IN
VCR
OUT
OUTPUTS
STROBE
Y
G
H
L
L
C0
IC112,114 : NJM2068D-D
IC104~106 : NJM2068LD
L
C1
Dual OP-Amp
L
C2
IC108~110 : M5220L
L
C3
Dual OP-Amp
A OUT
V+
+
+
–
–
A –IN
B OUT
A +IN
B –IN
1
2 3 4 5 6
7 8
V–
B +IN
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC's.
1SS133
HSS104
2SC2878(A, B)
NJM2068LD
M5220L
DTA144ES
1SS176
HZS11B2TD
Anode
8
B
C
E
Cathode
E
C
B
H
I
IC301,351,352 : NJM2296D
4-input to 3-output Video Switch
VIN1
VIN2
VIN3
VIN4
VIN5
IC111,113 : TC9299P
Electric Controlled Volume
Vss
V
DD
1
16
2
OUT
15
OUT
L-ch
R-ch
IN
3
DATA
DATA
14
IN
R-ch
L-ch
LATCH
LATCH
4
NC
13
NC
A-GND
5
12
A-GND
CS1
11
6
CS2
SHIFT REGISTER (13bit)
LEVEL
LEVEL
GND
7
10
STB
SHIFTER
SHIFTER
STROBE GENERATOR
CK
8
9
DATA
TC74HC00AP
BU2090
NJM2068D-D
TC9273N-004
LC78212
TC74HCU04AP
NJM2296D
LC78213
HD74HC153P
TC9299P
14
28
J
K
V+
SW2
SW1 SW5
16
10
14
2
13
6dB
75Ω
S5
AMP
DRIVER
S1
9
1
VOUT1
20k
20k
S2
7
6dB
75Ω
20k
S4
S6
AMP
DRIVER
5
15
VOUT2
S3
20k
20k
6dB
75Ω
3
S7
AMP
DRIVER
20k
11
VOUT3
20k
4
6
12
8
SW3
SW4
GND
V–
INPUTS
OUTPUTS
SW1
SW2
SW3
SW4
SW5
VOUT1
VOUT2
VOUT3
H
H
VIN1
MUTE
VIN1
L
L
H
X
H
VIN1
MUTE
MUTE
H
L
MUTE
MUTE
VIN1
H
VIN2
VIN2
MUTE
H
L
X
H
L
MUTE
VIN2
MUTE
H
VIN3
VIN3
VIN3
H
H
X
L
L
MUTE
VIN4
VIN4
H
H
VIN4
VIN4
VIN4
H
L
MUTE
VIN4
VIN4
H
L
H
L
H
VIN4
VIN4
MUTE
L
L
MUTE
VIN4
MUTE
H
H
VIN5
VIN5
VIN5
H
L
MUTE
VIN5
VIN5
H
H
H
L
H
VIN5
VIN5
MUTE
L
L
MUTE
VIN5
MUTE
L
L
X
L
L
MUTE
MUTE
MUTE
H: High level, L: Low level, X: Don't care.
Conditions (DSP-A5)
→ CD
• INPUT
→ minimum(–∞)
• VOLUME
• IMPEDANCE
→ Left
SELECTOR
• PRO LOGIC → On
All voltages are measured with a 10M Ω /V DC electric volt meter.
Components having special characteristics are marked
and
must be replaced with parts having specifications equal to those
originally installed.
Schematic diagram is subject to change without notice.
L
Hide quick links:
Advertisement
Table of Contents
