Read Sony CX-LEM300 / XR-EM300 Service Manual online
28
CX-LEM300
6-11.
IC Pin Function Description
• IC801
LC876756C-51R6-E (System Control)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30 to 36
37 to 44
45
46
47 to 50
51
52 to 66
67 to 71
72
73
74
75
76
77
78
79
80
81
82
83
84
I/O
O
O
I
O
I
O
O
O
O
O
I
I
O
—
I
O
—
I
I
I
I
I
I
I
O
I
I
—
I
—
O
O
—
O
—
O
—
—
—
O
O
O
O
O
I
O
—
O
O
O
Pin Name
C-PWM1
C-PWM2
C-SCOR
TA SOL
TA END
TA MOTOR
HP MUTE
POWER ON
AMP-MUTE
F-DATA
RST
32.768kHz
32.768kHz
GND
8.64MHz
8.64MHz-EXTAL
VDD1
KEY1
KEY2
I POWER DOWN
VERSION
VOL-ENC
RDS-SIG
TA SW
SHT-CLK
I POWER MONITOR
RDS-CLK
A-MUTE
RMC
NC
G1 to 8
SEG1
VDD3
SEG2 to 5
NO-USE
SEG6 to 20
NC
VDD4
BASS+2
TA BIAS
ECO.LED
C-DOOR
TA REC/PB
AMP-STNBY
TA PLAY.SW
TU MUTE
FL-CON
CD
TU
TU CE
Description
PWM1 signal output to the CD unit
PWM2 signal output to the CD unit
SCOR (SUBQ request) signal output to the CD unit
Solenoid control signal output to the tape deck
Tape deck reel switch signal input
Motor control signal output to the tape deck
Not used (open)
Power relay control signal output
Muting control signal output to the power amplifier
Control signal output to the sound processor
Reset signal input from the reset IC (IC803)
Resonator terminal (32.768kHz)
Resonator terminal (32.768kHz)
Ground terminal
Resonator terminal (8.64MHz)
Resonator terminal (8.64MHz)
Power supply terminal
Key AD input 1
Key AD input 2
Power down detection signal input
Version setting terminal
Encoder signal input from the volume encoder
RDS signal level input from the tuner
Tape switch status signal input from the tape deck
Clock shift control signal output
AC detection signal input
RDS clock input from the tuner
Not used
Remote sensor signal input
Not used (open)
Grid signal output to the fluorescent indicator tube
Segment signal output to the fluorescent indicator tube
Power supply terminal
Segment signal output to the fluorescent indicator tube
Ground terminal
Segment signal output to the fluorescent indicator tube
Not used (open)
Power supply terminal
Not used (fixed at “H”)
Bias control signal output to the bias oscillation circuit
ECO LED control signal output
CD door open/close switch signal input
REC/PLAY control signal output to the REC/PLAY switch circuit
Standby control signal output to the power amplifier
Play switch signal input from the tape deck
Muting signal output to the tuner
Not used (open)
CD power supply control signal output
Not used (open)
Tuner chip enable signal output to the tuner
Ver 1.1
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