Diagrams; Ic Pin Description - Sony CFD-S39 Service Manual

6-1. IC PIN DESCRIPTION

• IC501 CXP83620-007Q (SYSTEM CONTROL)
Pin No. Pin Name
1 C-SCOR
2 RMC
3, 4 NC
5 C-SENS1
6 C-SENS2
7 C-SQCK
8 C-SQSO
9 C-RST
10 C-CLOCK
11 C-LATCH
12 C-DATA
13 REC
14 R-COUNT
15 R-DATA
16 R-CLOCK
17 R-LATCH
18 V-LATCH
19 V-DATA
20 V-CLOCK
21 P-CON
22 DIRECTION
23 – 25 KEY-1 – 3
26 NC
27 INIT
28 MODE CHECK
29 SHIFT CLOCK
30 RST
31 EXTAL
32 XTAL
33 VSS
34 VL
35 – 37 VLC-3 – 1
38 – 41 COM0 – 3
42 – 64 SEG0 – 22
65 NC
66 A-MUTE
67 B-MUTE
68 C-MUTE
69 TAPE
70 RADIO
71 CD
72 VDD
73 TX
74 TEX
75 NC
76 ISS1
77 ISS2
78 C-DOOR
79 TC-PLAY
80 REG CHK
SECTION 6

DIAGRAMS

I/O
I CD SCOR input
I Sircs receiver 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
O CD reset output
O CD serial clock output
O CD serial latch output
O CD serial data output
I Tape record signal input L: REC
I Tuner PLL data input
O Tuner PLL data output
O Tuner PLL clock output
O Tuner PLL latch output
O Volume latch output
O Volume data output
O Volume clock output
O System power control output
I Tape pass direction or direction change input
I Key input
— Not used.
O Initial set signal output
I Mode set pin
O Shift clock output
I System reset input
I Oscillation input (4.19 MHz)
O Oscillation output (4.19 MHz)
— 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.
O Audio mute output H: Mute
O Tuner block mute output H: Mute
O CD block mute output H: Mute
O Tape function output H: Tape
O Tuner function output H: Radio
O CD function output L: CD
— Power supply pin (+5 V)
O Oscillation output (32.768 kHz)
I Oscillation input (32.768 kHz)
— Not used.
O Not used.
O Not used.
I CD door open/close switch input L: Close
I Tape play switch input L: Tape
I Regulator check signal input H: ON
– 16 –
Pin Description