SONY HCDV5500
Manual de Servicio

� IC901 IC INTERFACE (uPD780016YGF-012-3BA)/VIDEO board
Pin No. 1 to 8 9 10 11 12 13 14 15 16, 17 18 19 to 22 23 24 25 to 32 33 34 35 36 37 38, 39 40 41, 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 to 64 65 66 67 68 69, 70 71 72, 73 74 to 81 82 to 85 86 to 93 94 to 100 Pin Name P80 to P87 TEST X2 X1 VDD XT2 XT1 RESET PO0, PO1 QINT PO3 to PO6 VDD AVDD P10 to P17 AVSS CMD0 CMD1 CMD2 CMD3 P24, P25 VSS P26, P27 MREQ SACK CDGM P93 MDATA MCLK OS-XLAT G-XLAT G-XRST CD-XRST CDPOW DOUT IIC-DATA IIC-CLK P40 to P47 NRON LEVEL0 LEVEL1 NR-XCS P54, P55 VSS P56, P57 P60 to P67 P100 to P103 P30 to P37 P150 to P156 I/O I � O I � � � I I I I � � I � I/O I/O I/O I/O I � I O I I I O O O O O O O O I I I O O O O I I I I I I I Connected to ground Connected to ground X� tall (5MHz) X� tall (5MHz) Power supply +5V Not used Connected to +5V System reset input Not used (Fixed at �L�) CD-BUS interrupt input Not used (Fixed at �L�) Power supply +5V Power supply +5V Connected to ground Ground Input/output terminal exchanging data bus 0 with mecha-con, (IC901) Input/output terminal exchanging data bus 1 with mecha-con, (IC901) Input/output terminal exchanging data bus 2 with mecha-con, (IC901) Input/output terminal exchanging data bus 3 with mecha-con, (IC901) Connected to ground Ground Connected to ground Output command request to mecha-con. (IC701) Input command acknowledge from mecha-con. (IC701) Not used (Fixed at �L�) Connected to ground Serial data output (IC271, 301) Serial clock output (IC271, 301) Serial latch output to OSD (IC271) Not used Not used Video CD section reset output Not used Not used Serial data input from master control (IC701) Serial clock input from master control (IC701) Connected to ground Not used Not used Not used Chip select output to noise reduction (IC301) Connected to ground Ground Connected to ground Connected to ground Connected to ground Connected to ground Connected to ground Description

� 68 �