Sony ZSS2IPW - Page 38

38
ZS-S2iP
• IC801 µPD789479GC-F-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 I LCD drive bias voltage input
6 to 9 COM1 to 4 O LCD drive common output
10 to 26 S1 to 17 O LCD drive segment output
27, 28 S18, 19 O LCD drive segment output Not used in this set. (Open)
29 DOOR SW I CD door open/close detect switch signal input L: Close
30 I-POD POWER O I-Pod power control signal output
31 SIMUKE1 I Model discrimination input
32 SIMUKE2 I Model discrimination input
33 SIMUKE3 I Model discrimination input
34 LINE O AUDIO IN function control signal output Not used in this set. (Open)
35 A-MUTE O Audio mute signal output H: Mute
36 FUNC CD O CD power control signal output H: CD ON
37 FUNC I-POD O I-Pod function control signal output Not used in this set. (Open)
38 AVDD — Power supply pin (+3.3 V)
39 BATT-CHK-H I Battery voltage check input
40 5V-CHK I Power supply 5 V voltage detect check signal input
41 6V-CHK I Power supply 6 V voltage detect check signal input
42 3V-CHK I Power supply CD 3.3 V voltage detect check signal input
43 to 45 KEY3 to 1 I Key signal input
46 AC IN I AC power supply detect signal input
47 AGND I Ground pin
48 RMC IN I Remote commander receiver data input
49 I-POD DETECT I I-POD on deck detect signal input
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 I-POD RX I/O I-POD UART signal input/output
57 I-POD TX O I-POD UART signal output
58 TU-COUNT I Tuner PLL serial data signal input
59 TU-DATA O Tuner PLL serial data signal output
60 TU-CLK O Tuner PLL serial clock signal output
61 TU-CE O Tuner PLL chip enable signal output
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 NC O Not used. (Pull down)
67 OP O Not used. (Pull down)
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 signal input (32.768 kHz)
71 XT2 O Sub system oscillation signal output (32.768 kHz)
72 VDD — Power supply pin (+3.3 V)
73 VSS — Ground pin
74 X1 I Main system oscillation signal input (4.915 MHz)