Ic Pin Function Description - Sony HCD-RG66 Service Manual

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HCD-RG66
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5-17. IC PIN FUNCTION DESCRIPTION

• IC801
LC876662B-5Z81 Master Control (PANEL Board)
Pin No.
Pin Name
1
PWR LED
2
P.S.RELAY
3
SYS MUTE
4
CD CLOSE
5
CD RWC/F.CLOCK
6
CD WRQ/F.DATA
7
FLASH R/W
8
CD DRF
9
AMS IN
10
BU1924 DATA
11
RESET
12
XT1
13
XT2
14
VSS
15
CF1
16
CF2
17
VDD1
18
TAPE A STAT
19
TAPE B STAT
20
VACS
21
SPEANA IN H
TE
L 13942296513
22
SPEANA IN MH
23
SPEANA IN M
24
SPEANA IN L
25
KEY INPUT 0
26
KEY INPUT 1
27
KEY INPUT 2
28
PWR DOWN
29
BU1924 CLK
30 to 42
G13 to G01
43 to 45
P01 to P03
46
VDD
47 to 50
P04 to P07
51
VPP
52 to 64
P08 to P20
65
P21 OP. OUT 10(SW10)
to
to
68
P24 OP. OUT 07(SW07)
69
P25 OP. OUT05(SW06)
to
to
71
P27OP. OUT 03(SW04)
72
VDD
73
P28 OP. OUT 02(SW03)
to
to
www
75
P30 OP. OUT 00(SW01)
OP. SW IN
76
(MODE SW IN)
77
PROTECTOR SENSOR
.
78
HEADPHONE SENSOR
79
CD SENS
38
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I/O
O
PWR LED control signal output
O
Standby relay control signal output
O
System muting signal output
I
CD tray close switch signal input
O
Read/write control signal output
I
Subcode Q standby signal input
Fixed at "H"
I
RF level detection signal input
I
AMS signal input
I
Data input from the RDS decoder IC
I
Reset input
I
Connection for a crystal resonator
O
Connection for a crystal resonator
Ground
I
Connection for a ceramic resonator
O
Connection for a ceramic resonator
Power sypply
I
TAPE A switches signal input
I
TAPE B switches signal input
O
VACS control signal output
I
Spectrum analyzer signal input
I
Spectrum analyzer signal input
I
Spectrum analyzer signal input
I
Spectrum analyzer signal input
I
Function key input
I
Function key input
I
Function key input
I
Power down signal input
I
Clock input from the RDS decoder IC
O
FL tube grid signal ouput
O
FL tube segment signal ouput
Power supply
O
FL tube segment signal ouput
Power supply (negative)
O
FL tube segment signal ouput
O
FL tube segment signal ouput or switch signal output
O
FL tube segment signal ouput or switch signal output
Power supply
O
FL tube segment signal ouput or switch signal output
x
ao
I
Switch signal input
y
I
Power amplifier circuit protection signal input
i
I
Headphone detection signal input
I
Table address sensor signal input
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Description
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