Diagrams; Ic Pin Description - Sony PMC-107 Service Manual

5-1. IC PIN DESCRIPTION

• IC801 CXP50716-082Q (SYSTEM CONTROL/LCD DRIVE)
Pin No. Pin Name
1 – 19 SEG0 – 18
20 – 23 COM0 – 3
24 – 26 VLC-3 – 1
27 VL
28 RMC
29 C-SCOR
30 TX
31 TXE
32 RST
33 N.C.
34 VDD
35 – 38 KEY1 – 4
39 INIT
40 VER
41 9K/10K
42 REG-CHK
43 N.C.
44 C-SQCK
45 C-SENS
46 C-SQSO
47 A-MUTE
48 V-DATA
49 V-CLK
50 V-CE
51 REG-CON
52 TAPE
53 RADIO
54 CD
55 REC
56 CD-DOOR
57 R-COUNT
58 R-ST
59 C-MUTE
60 PA-CON
61 WP
62 T-PLAY
63 C-XRST
64 C-DATA
65 C-CLK
66 C-XLAT
67 R-MUTE
68 R-DATA
69 R-CLK
70 R-CE
71 VSS
72 XTAL
73 N.C.
74 EXTAL
SECTION 5

DIAGRAMS

I/O
O LCD drive segment output
O LCD drive common output
O LCD drive voltage terminal
O LCD drive port ON/OFF output
I Sircs receiver input
I CD SCOR input
O Oscillation output (32.768 kHz)
I Oscillation input (32.768 kHz)
I System reset input
— Not used.
— Power supply pin (+5 V)
I Key input
O Tuner select initial setting output
I Tuner destination band select input
I Tuner band 9k/10k select input
I Voltage detection input
— Not used.
O CD Sub-Q read clock output
I CD SENSE input
I CD Sub-Q data input
O Audio mute output
O Volume serial data output
O Volume serial clock output
O Volume serial chip enable output
O Regulator control output
O Tape control output
O Radio control output
O CD control output
I Tape record signal input
I CD door detection input
I Tuner PLL data input
O Stereo indicator output
O CD mute output
O Power-amplifier control output
I Wake-up input
I Tape play switch input
O CD reset output
O CD serial data output
O CD serial clock output
O CD serial latch output
O Tuner mute output
O Tuner PLL data output
O Tuner PLL clock output
O Tuner PLL chip enable output
— GND
O Oscillation output (4.19 MHz)
— Not used.
I Oscillation input (4.19 MHz)
– 20 –
Pin Description