Read Sony DHC-MD7 / MDS-M9 Service Manual online
— 59 —
I/O
Function
Pin Name
• IC701 Display control, LED drive
Pin No.
—
AVss
—
AVREF1
RXD
TXD
CTS
RTS
SDATA
SCK
CS
RST-OUT
—
LED1
LED2 to LED5
—
Vss
—
—
—
P-OFF
RESET
BUS-IN
BUS-OUT
EN-IN
GND
V
DD
X2
X1
GND
—
GND
AV
DD
AVREF0
KEY1 to KEY3
—
Not used in this unit (connected to ground)
Ground pin (A/D converter)
Not used in this unit (connected to ground)
Reference voltage input to D/A converter (+5V)
UART data input from system controller (IC201)
UART data output to system controller (IC201)
UART data transmission request signal input from system controller (IC201)
UART data transmission request signal output to system controller (IC201)
Serial data output to Fluorescent tube driver (IC702)
Serial clock output to Fluorescent tube driver (IC702)
Chip select signal output to Fluorescent tube driver (IC702)
Reset signal output to Fluorescent tube driver (IC702)
Not used in this unit (connected to ground)
Not used in this unit (Opened)
LED drive “L”: Active
Not used in this unit (connected to ground)
Ground pin
Not used in this unit (connected to ground)
Attenuate ON/OFF output
“L”: –6 dB attenute
Not used in this unit (connected to ground)
Forced reset output to system controller (IC201)
Reset signal output “L”: Active
AU BUS signal input
AU BUS signal output
Encoder input
Ground pin
Power supply pin (+5V)
Main clock (5 MHz)
Ground pin
Not used in this unit (Opened)
Ground pin
Power supply pin (+5V) (A/D converter)
Reference voltage input to A/D converter (+5V)
Key input
Not used in this unit (connected to ground)
—
—
—
—
I
O
I
O
O
O
O
O
—
I
I
—
—
—
O
—
O
I
I
O
I
—
—
I
O
—
—
—
—
—
I
—
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4
5, 6
7
8
9
10
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12
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15
16 to 26
27
28 to 31
32
33
34 to 51
52
53 to 58
59
60
61
62
63, 64
65 to 67
68
69
70
71
72
73
74
75
76 to 78
79, 80
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