HST-471
4-11.IC BLOCK DIAGRAMS
4-12. IC PIN FUNCTION
• IC701 SYSTEM CONTROL (
µ
PD780204GF-024-3A)
— 36 —
— 37 —
— 38 —
IC302
LC7822
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN
IN
OUT
IN
OUT
IN
1
2
3
4
5
6
7
8
9
15
10
11
12
–
+
13
14
16
21
18
19
25
17
24
22
23
20
34
32
33
29
30
35
28
31
27
26
36
40
39
38
37
41
42
NOISE
FILTER
NOISE
CH
BALANCE
CONTROL
VR
CONTROL
LPF
V REF
VR
VR
NOISE
GENERATOR
VCA
VCA
VCA
VCA
VCA
VCA
VCA
VCA
LPF
LPF
RECT
RECT
RECT
RECT
P. S.
P. S.
CMODE
MUTE
DIVIDER
OSC
CONTROL
CTRIM
LOG
DIFF
LOG
DIFF
DUAL T
CONTROL
L-IN
R-IN
V
SS
CLK
DATA
V
CC
L-OUT
R-OUT
S-OUT
C-OUT
ENABLE
OSC1
CMODE-CAP.
C-TRIM DC CUT
R-BPF1
R-BPF2
R-BPF3
DC CUT
DC CUT
L-R RECT
L+R RECT
VCS-TH
VCS-1
VCS-2
BPF1
BPF2
VREF
S-CH DC OUT
C-CH DC OUT
L-CH DC OUT
R-CH DC OUT
VREF
L-BPF1
L-BPF2
L-BPF3
DC CUT
DC CUT
R RECT
L RECT
VLR-TH
VLR-1
VLR-2
IC303
LA2786
IC304
LV1016
1
5
6
+
–
+
20
19
18
17
16
15
14
13
21
22
23
24
2
3
4
7
8
9
10
12
11
+
DEC
IN-FILTER
(40kHz)
VDD
ADM-CONT
SRAM
ADM
OUT-FILTER
(7k/5k)
B-NR
DC-OUT
VOL/MUTE
S-TRIM
INV-PHASE
R+DELAY
L+DELAY
A
B
A
B
A
B
A
B
A
B
A
B
A
B
L–R
L+R
(–6dB)
A
B
A.GND
L-OUT
R-OUT
VREF
S-OUT
DELAY-OUT
S-IN
R-IN
L-IN
VCC
NR-DET
ENABLE
DATA
CLK
D.GND
DC-CUT
VDD
OSC
OSC
NR-IREF
DC-CUT
IC310
LC7824
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN
IN
OUT
IN
OUT
IN
IC332
LB1641
IC305, IC306
TDA7315
11
12
13
14
15
16
17
18
19
20
10
9
8
7
6
5
4
3
2
1
SUPPLY
VOL/LOUD
BASS
TREBLE
SPEAKER
ATT
VOL/LOUD
BASS
TREBLE
SPEAKER
ATT
SERIAL BUS DECODER/LATCH
SCL
SDA
DIG
GND
OUT
LEFT
OUT
RIGHT
B OUT
(R)
B IN
(R)
B OUT
(L)
B IN
(L)
LOUD
(L)
LOUD
(R)
R
TREBLE
(R)
TREBLE
(L)
A GND
VS
IN (R)
N.C
N.C
L
1
2
3
4
5
6
7
8
9
10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1
VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D
O.C.P
FWD/REV/STOP
CONTROL LOGIC
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
—
O
I
I
O
I
O
O
O
I
O
I
—
—
I
—
I
O
O
O
O
O
O
O
—
I
I
I
I
I
I
I
I
—
—
O
O
I
I
—
O
I/O
I/O
O
O
—
O
O
O
O
Description
5V
TUNER MUTE, H: ON.
TUNER STEREO
TUNER TUNED, L: TUNING.
TUNER PLL latch (LC72130).
TUNER PLL data in (LC72130).
TUNER PLL data out (LC72130).
TUNER PLL clock (LC72130).
TC line mute, H: ON.
Reset signal input
X’ tal (5MHz)
X’ tal (5MHz)
Ground
OPEN.
Encoder input B.
5V
Encoder input A.
FUNCTION/PRO-LOGIC/DELAY/SW clock.
FUNCTION/PRO-LOGIC/DELAY/SW data out.
FUNCTION (LC72130) latch.
PROG (LA2786)/DELAY (LV1016) latch.
S. WOOFER (LC7824) latch.
Trigger motor control.
Trigger motor control.
Ground
B DECK half input.
A DECK reel pulse input.
B DECK reel pulse input.
Key input.
Key input.
Key input.
Key input.
Destination model identification input, H: E model.
5V.
5V.
IC MUTE, L: ON.
TC REC/PB/PASS output. (HA12203NT).
POWER ON/OFF, H: ON.
SIRCS input.
Ground
Volume IC (TDA7315) clock.
Volume IC (TDA7315) data. (REAR/CENTER).
Volume IC (TDA7315) data. (BASS/TRE).
FRONT RELAY, H: ON.
SURROUND/BRIDGE RELAY, H: ON.
5V.
HEAD PHONE RELAY, H: ON.
S. WOOFER MUTE LED ON/OFF, H: ON.
PRO-LOGIC LED, H: ON.
LINE MUTE, L: ON.
Pin Name
Vdd
ST MUTE
ST STEREO
ST TUNED
ST CF
ST DI
ST DO
ST CLK
TC LINE MUTE
RESET
X2
X1
1C
XT2
VOLUME B
Vdd
VOLUME A
TA CLK
TA DATA
FUNC CE
PROG/DELAY CE
SW CE
TC B TRG
TC A TRG
AVss
B HALF
A SHUT
B SHUT
KEY 4
KEY 3
KEY 2
KEY 1
MODE
AVdd
AVdd
IC MUTE
TC REC/PB/PASS
POWER SENSE
SIRCS
Vss
SCL
SDA 2
SDA 1
FRONT - RY
SUR - RY/BRIDGE - RY
Vdd
H.P - RY
S.W MUTE LED
PROG LED
LINE MUTE
