Ic Pin Function; Ic801 System Control, Fluorescent Indicator Tube Drive (Cxp82316-069Q) - Sony CDP-XE900 Service Manual

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6-6. IC PIN FUNCTION

• IC801 SYSTEM CONTROL, FLUORESCENT INDICATOR TUBE DRIVE (CXP82316-069Q)

Pin No.
Pin Name
1 TIMER
2 RM (BUSIN)
3
+5V
4
OPEN
5 OPEN
6
(BUS OUT)
7
PGML
8
CLK
9
SENSE
10
DATA
11
SQCK
12
SUBQ
13
OPEN
14 AMUTE
15 LDON
16 XLT
17 RVLED
18 RV+
TE
L 13942296513
19 RV–
20 LDOUT
21 LDIN
22 to 27 KEY0 to KEY5
28 ADJ/AFADJ
29 IN/OUTSW
30 RST
31 EXTAL
32
XTAL
33
V
SS
34 to 41
OPEN
42 to 62
S1 to S21
63 to 70
1G to 8G
71
VFDP (–30V)
72
V (+5V)
DD
73
—
74
SEL1
75
IN PORT
76
IN PORT
77 IN PORT
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78 SCOR
79
SEL2
80 SEL3
.
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I/O
I Timer switch input. (Not used) Connected to +5V.
I Audio bus (Remote control) input.
Connected to +5V.
–
–
Not used. (Open)
–
Audio bus output. (Not used)
O
Latch signal output to digital filter (IC303).
O
Serial clock output.
O
SENSE signal input.
I
Serial data output.
O
Read out clock output for subcode Q data.
O
Subcode Q data input.
I
Open. (Not used)
–
Analog muting control signal output.
O
Optical pick-up laser diode control output.
O
Serial data latch signal output.
O
O Not used. (Open)
I Remote commander volume +. (Not used)
I Remote commander volume –. (Not used)
O
Loading motor control signal output.
O
Key input. (S801 to S810, S820 to S826, S828)
I
ADJ, AFADJ test pin.
–
Loading IN/OUT switch input.
I
Reset signal input.
I
Clock input. (4 MHz)
I
Clock output. (4 MHz)
O
Ground
–
Not used. (Open)
–
Fluorescent Indicator Tube segment output.
O
Fluorescent Indicator Tube grid output.
O
–30V pin for Fluorescent Indicator tube.
–
–
+5V pin.
–
Connected to Ground.
–
–
Connected to +5V.
–
–
Read out timing signal input for subcode Q data.
I
x ao u163
Connected to Ground.
– y
Connected to Ground.
–
i
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2 9
8
Function
Q Q
3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
9 9