Sony CDX-MP450X Primary User Manual (English, Руководство по обслуживанию

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CDX-MP450X
Pin No. Pin Name I/O Pin Description
63 SENS I Sensitivity input from DSP IC (IC516).
64 IN SW I Disc in switch input
65, 66 N.C — Not used. (Fixed at H in this set)
67 MP3 I MP3 playback control input (H: not playback, L: playback)
68 PH3 I Photo coupler input 3 (Not used in this set)
69 SCLK O Serial clock output to DSP IC (IC516).
70 LM LOADING O Loading motor loading (CD tray close) output
71 TV RST O TV encoder IC reset output (Not used in this set)
72 N.C — Not used. (Open)
73 TE CANCEL O Tracking error offset cancel output of RF amplifier. (Not used in this set)
74 FE CANCEL O Focus error offset cancel output of RF amplifier. (Not used in this set)
75 BU IN I Back-up power supply input
76 SCOR I SCOR input from DSP IC (IC516).
77 MSO I Serial input from master microcomputer IC (IC801).
78 MSI O Serial output to master microcomputer IC (IC801).
79 MSC I Serial clock input from master microcomputer IC (IC801).
80 MCS I Chip select input from master microcomputer IC (IC801).
81 LM EJECT O Loading motor eject (CD tray open) output
82 DRV OE O Mute control output for driver IC (IC512).
83 MD2 O Check output for operation mode. (Not used in this set)
84 TEX I Not used. (Connect to VSS)
85 TX O not used. (Open)
86 VSS — Digital ground
87 VDD — Digital power supply pin
88 N.C — Not used. (Fixed at H in this set)
89 H R/W O Read/Write select output for MPEG decoder IC (IC514). (H: Read, L: Write)
90 H RD O Mode select output for MPEG decoder IC (IC514) at read. (H: Multiflux, L: Individual)
91 – 93 HADDR2 – 0 O Host address 2 – 0 output for MPEG decoder IC (IC514).
94 H CS O Host chip select output for MPEG decoder IC (IC514).
95 N.C — Not used. (Open)
96 H RST O Host reset output to MPEG decoder IC (IC514).
97 – 99 N.C — Not used. (Open)
100 CDM ON O CD mechanism deck loading motor power supply control output (8 V).