Ic Pin Function; Ic801 System Control, Fluorescent Indicator Tube Drive (Cxp82316-069Q) - Sony CDP-XE700 Service Manual

6-2.

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 PRGL
8 CLK
9 SENSE
10 DATA
11 SQCK
12
SUBQ
13
OPEN
14
AMUTE
15
LDON
16
XLT
17 RVLED
18 RV+
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
78
SCOR
79
SEL2
80
SEL3
I/O
– Connected to +5V.
I Audio bus input.
– Connected to +5V.
–
– Not used. (open)
–
O Latch signal output to digital filter (IC303).
O Serial clock output.
I SENSE signal input.
O Serial data output.
O Read out clock output for subcode Q data.
I Subcode Q data input.
– Not used. (open)
O Analog muting control signal output.
O Optical pickup laser diode control output.
O Serial data latch signal output.
– Not used. (open)
O
Remote commander volume +. (Not used)
O 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
Connected to Ground.
–
Connected to Ground.
–
— 11 —
Function