Sony CSX-V58MP, Service Manual

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18
CSX-V58MP
• IC801 µPD780076GK-542-9ET (MASTER CONTROL) (MAIN BOARD)
Pin No. Pin Name I/O Pin Description
1 — I Not used. (Open)
2 CDDA_LED O CD LED control output
3 to 5 — I Not used. (Open)
6 P_MSRQ I Serial request input from CD system control IC (IC513).
7 P_SYS_RESET O Slave microcomputer hard reset output for CD system control IC (IC513).
8 P_MCS O Chip select output for CD system control IC (IC513).
9 VSS0 — Ground
10 VDD0 — Power supply pin (+5 V)
11 PAUSE_ON_LED O PAUSE LED control output
12 VCD_IN_LED O VCD LED control output
13 MP3_IN_LED O MP3 LED control output
14 CD_IN_LED O DISC IN LED control output
15 P_MSI I Serial input from CD system control IC (IC513).
16 P_MSO O Serial output for CD system control IC (IC513).
17 P_MCLK O Serial clock output for CD system control IC (IC513).
18 UNI_SI I SONY BUS serial input from BUS interface IC (IC803).
19 UNI_SO O SONY BUS serial output for BUS interface IC (IC803).
20 UNI_CKI I SONY BUS serial clock input from BUS interface IC (IC803).
21 UNI_DATA_CHK I SONY BUS serial data check input from BUS interface IC (IC803).
22 LINK_OFF O Link off output for bus interface IC (IC803).
23 — I Not used. (Open)
24 VDD1 — Power supply pin (+5 V)
25 AVSS — Analog ground
26 to 29 — I Not used. (Open)
30 EJECT/PAUSE I Key input (EJECT and PAUSE)
31 TEST I Test pin
32 P_PARK I Parking brake signal input
33 — I Not used. (Open)
34 AVREF — Power supply (minus) pin for A/D converter.
35 AVDD — Power supply (plus) pin for A/D converter.
36 RESET I Master reset input
37 XT2 O Sub clock output (Not used in this set)
38 XT1 I Sub clock input (Not used in this set)
39 IC — Not used. (Connect to VSS in this set)
40 X2 O Master clock output (8.38 MHz)
41 X1 I Master clock input (8.38 MHz)
42 VSS1 — Ground
43 KEY_ACK I Key acknowledge detection input
44 BUS_ON I BUS ON signal input
45 SELF_SW I Disc self store switch (SW2) input
46 BU_IN I Back-up power supply detection input
47 MUTE O Mute on control output
48 ILL_ON O Illumination power supply control output
49 PAL/NTSC I PAL/NTSC select output (L: NTSC, H: PAL)
50 to 64 — I Not used. (Open)