Read Sony CDP-XE900 / CDP-XE900E Service Manual online
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6-6. IC PIN FUNCTION
• IC801 SYSTEM CONTROL, FLUORESCENT INDICATOR TUBE DRIVE (CXP82316-069Q)
Loading motor control signal output.
Key input. (S801 to S810, S820 to S826, S828)
ADJ, AFADJ test pin.
Loading IN/OUT switch input.
Reset signal input.
Clock input. (4 MHz)
Clock output. (4 MHz)
Ground
Not used. (Open)
Fluorescent Indicator Tube segment output.
Fluorescent Indicator Tube grid output.
–30V pin for Fluorescent Indicator tube.
+5V pin.
Connected to Ground.
Connected to +5V.
Read out timing signal input for subcode Q data.
Connected to Ground.
Connected to Ground.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22 to 27
28
29
30
31
32
33
34 to 41
42 to 62
63 to 70
71
72
73
74
75
76
77
78
79
80
Pin Name
TIMER
RM (BUSIN)
+5V
OPEN
OPEN
(BUS OUT)
PGML
CLK
SENSE
DATA
SQCK
SUBQ
OPEN
AMUTE
LDON
XLT
RVLED
RV+
RV–
LDOUT
LDIN
KEY0 to KEY5
ADJ/AFADJ
IN/OUTSW
RST
EXTAL
XTAL
V
SS
OPEN
S1 to S21
1G to 8G
VFDP (–30V)
V
DD
(+5V)
—
SEL1
IN PORT
IN PORT
IN PORT
SCOR
SEL2
SEL3
I/O
I
I
–
–
–
O
O
O
I
O
O
I
–
O
O
O
O
I
I
O
O
I
–
I
I
I
O
–
–
O
O
–
–
–
–
–
–
–
I
–
–
Function
Timer switch input. (Not used) Connected to +5V.
Audio bus (Remote control) input.
Connected to +5V.
Not used. (Open)
Audio bus output. (Not used)
Latch signal output to digital filter (IC303).
Serial clock output.
SENSE signal input.
Serial data output.
Read out clock output for subcode Q data.
Subcode Q data input.
Open. (Not used)
Analog muting control signal output.
Optical pick-up laser diode control output.
Serial data latch signal output.
Not used. (Open)
Remote commander volume +. (Not used)
Remote commander volume –. (Not used)
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