Sony CFD-S01 - Page 36

36
CFD-S01
• IC801 µPD78947GC-A49-8BT-A (SYSTEM CONTROL) (MAIN BOARD (3/4))
Pin No. Pin Name I/O Pin Description
1, 2 NC I Not used. (Open)
3 to 5 VLC2 to 0 O LCD drive bias voltage input
6 to 9 COM1 to 4 O LCD drive common output
10 to 26 S1 to 17 I LCD drive segment output
27 TAPE REC I Tape record signal input H: REC
28 NC I Not used. (Pull down)
29 DOOR SW I CD door open/close switch input L: Close
30 NC O Not used (Open)
31 SIMUKE1 I Model discrimination input
32 SIMUKE2 I Model discrimination input
33 SIMUKE3 I Model discrimination input
34 NC O Not used (Open)
35 A-MUTE O Audio mute output H: Mute
36 FUNC CD O CD power control signal output H: CD ON
37 FUNC TC O Tape function output H: Tape
38 AVDD — Power supply (+3.3 V)
39 BATT-CHK-H I Battery voltage check input
40 BATT-CHK-M I Battery voltage check input (Not used (Pull down))
41 6V-CHK I Power supply 6V check signal input
42 3V-CHK I Power supply CD 3.3V check signal input
43 to 45 KEY3 to 1 I Key input
46 NC I Not used (Pull down)
47 AGND I Ground
48 RMC IN I Remote commander receiver data input (Not used)
49 TC-PLAY I Tape play switch input L: Tape play
50 WP/INI I Wake-up/Interrupt signal input
51 CD-SUBSYQ I CD sub code synchronous signal input
52 CD-BUSY I CD BUSY signal input
53 CD-DOUT I CD command data input
54 CD-DIN O CD status and SUB-Q data output
55 CD-MCK O CD command transfer clock output
56 TU-COUNT I Tuner PLL serial data input
57 TU-DATA O Tuner PLL serial data output
58 TU-CLK O Tuner PLL serial transfer clock output
59 TU-CE O Tuner PLL chip enable signal output
60 MIC DET I Not used (Pull down)
61 TU-ON O Not used (Open)
62 CD-R/W O CD command read/write signal output
63 CD-LIM_SW I CD optical inner limit signal input
64 CD-RESETX O CD system reset output
65 P-CON O System power control output H: Power on
66 ISS1 O Not used (Open)
67 ISS2 O Not used (Open)
68 M-BASS O MEGA BASS control signal output H: MEGA BASS on
69 ICO I Not used (Pull down)
70 XT1 I Sub system oscillation input (32.768 kHz)
71 XT2 O Sub system oscillation output (32.768 kHz)
72 VDD — Power supply (+3.3 V)
73 VSS — Ground