Read Sony HST-471 / SEN-471 Service Manual online
4-12.
IC PIN FUNCTION
• IC701 SYSTEM CONTROL (
µ
PD780204GF-024-3A)
— 38 —
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
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