Diagrams; Ic Pin Description - Sony CFD-W57 Service Manual

5-1. IC PIN DESCRIPTION

• IC801 CXP83120A-029Q (SYSTEM CONTROL)
Pin No. Pin Name
1 C-SCOR
2 W/UP
3 RMC
4 OPEN-O
5 CLS-O
6 OPEN-I
7 CLS-I
8 —
9 C-SENS1
10 C-SENS2
11 C-SQCK
12 C-SQSO
13 —
14 C-XRST
15 C-XLAT
16 C-CLK
17 C-DATA
18 R-ST
19 R-DATA
20 R-CLK
21 R-COUNT
22 R-CE
23 P.CON
24 V-DATA
25 V-CLOCK
26 V-CE
27 REG-CHK
28 BL-CONT
29 REC
30 INI
31 SET 9k/10k
32 VERSION
33 – 36 KEY-1 – 4
37 SFT-CLK
38 RESET
39 EXTAL1
40 XTAL1
41 VSS
42 XTAL2
43 EXTAL2
44 AVREF
45 AVSS
46 VL
47 – 49 VLC-3 – 1
50 – 53 COM0 – 3
54 – 76 SEG0 – 22
77 – 80 —
81, 82 NC
83 ROCK-LED
84 POP-LED
85 LIVE-LED
SECTION 5

DIAGRAMS

I/O
I CD SCOR input
I Wake-up input
I Sircs receiver input
O CD loading motor control output (Eject direction)
O CD loading motor control output (Loading direction)
I CD open switch input
I CD close switch input
— Not used.
I CD SENSE-1 input
I CD SENSE-2 input
O CD Sub-Q read clock output
I CD Sub-Q data input
— Not used.
O CD reset output
O CD serial latch output
O CD serial clock output
O CD serial data output
O Stereo indicator output
O Tuner PLL data output
O Tuner PLL clock output
I Tuner PLL data input
O Tuner PLL chip enable output
O System power control output
O Volume serial data output
O Volume serial clock output
O Volume serial chip enable output
I Low voltage detection input
O Back light control output
I Tape record signal input
O Tuner select initial setting output
I Tuner band 9k/10k select input
I Tuner destination band select input
I Key input
O Shift clock output
I System reset input
I Oscillation input (4.19 MHz)
O Oscillation output (4.19 MHz)
— GND
— Not used.
— Not used (Connected to GND).
I A/D converter VREF input
— Analog GND
O LCD drive port ON/OFF output
O LCD drive voltage terminal
O LCD drive common output
O LCD drive segment output
— Not used.
— Not used.
O Not used.
O Not used.
O Not used.
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Pin Description