Ic Pin Function Description - Sony CFD-CD777SMK2 Service Manual

CFD-CD777SMK2
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6-16. IC PIN FUNCTION DESCRIPTION

• CONTROL BOARD IC801 CXP5086H-684Q (SYSTEM CONTROLLER, LCD DRIVER)
Pin No. Pin Name
1, 2 NC
3 SENS
4 SCOR
5 SQCKO
6, 7 NC
8 SQSO
9 CLOK
10 XLAT
11 DATA
12 XRST
13 GND
14 REC
15 DOOR
16 TEST
17 NC
18 LCD
19 MODE
20 DISP
21 K-PLAY
TE
L 13942296513
22 K-STOP
23 K-FR
24 K-FF
25 GND
26 VDD
27 NC
28 C-MUTE
29 to 33 NC
34 LDON
35 NC
36 SEG14
37 to 50 SEG13 to SEG0
51 to 54 COM3 to COM0
55 VLC1
56 VLC2
57 VLC3
58 VDD
59 VL
60 XTAL
61 EXTAL
62 RST
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63 GND
64 RMC-S
.
40
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I/O
O
Not used
I
Internal status input from the DSP
I
Subcode sync (S0+S1) detection signal input from the DSP
O Subcode Q data reading clock signal output to the DSP
O
Not used
I
Subcode Q data input from the DSP
O
Serial data transfer clock signal output to the DSP
O Serial data latch pulse signal output to the DSP
O
Serial data output to the DSP
O
Reset signal output to the RF AMP, DSP and D/A converter
—
Ground terminal
I REC/PB switch input terminal "L": recording mode
I
CD lid open/close detection switch input terminal "L": CD lid is closed
I
Setting terminal for the service mode "L": service mode, Normally: fixed at "H"
O
Not used
I Fixed at "L" in this set
I PLAY MODE key input terminal "L" is input when the key pressing
I DISPLAY/ENTER key input terminal "L" is input when the key pressing
Play/pause (N X) key input terminal "L" is input when the key pressing
I
I Stop (x) key input terminal "L" is input when the key pressing
I Fast rewind (>) key input terminal "L" is input when the key pressing
I Fast forward (.) key input terminal "L" is input when the key pressing
—
Ground terminal
— Power supply terminal (+5V)
O
Not used
O
Muting control signal output to the DSP, D/A converter and line muting circuit "H": muting on
O
Not used
O
Laser diode on/off control signal output terminal "H": laser on
O Not used
O
Segment drive signal output terminal Not used
O
Segment drive signal output to the liquid crystal display
O
Common drive signal output to the liquid crystal display
I Power supply input for the liquid crystal display
I
Power supply input for the liquid crystal display
I
Power supply input for the liquid crystal display
—
Power supply terminal (+5V)
I Power supply input for the liquid crystal display
O
Main system clock output terminal (4.019 MHz)
I
Main system clock input terminal (4.019 MHz)
O
Reset signal output to the motor/coil driver IC "L": reset
— Ground terminal
x ao
I
Sircs remote control signal input from the remote control receiver
y
i
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8
Description
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
"L": reset
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9