Sanyo DP50747 Service Manual

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Sanyo DP50747 Service Manual Manual pdf 47 page image

— 45 —CONTROL PORT FUNCTIONSPin Name Function I/O Description1 CVin Reserve IN GND (0Vdc)2 P70/INT0/TOLCP LINE OFF IN Detect AC Voltage Reduction (Normal: High)3 P71/INT1/TOHCP Reserve OUT (Open)4 P72/INT2/TOIN Display Enable OUT (Unused)5 P73/INT3/TOIN RC in IN RC Input6 AN0 Key in IN Key Input7 AN1 AFT S-Figure in IN AFT S-Figure Input8 P82/AN2 Tuner Switch OUT Tuner Bus SW (Analog-RF: High, Other: Low)9 P83 Reserve OUT (Open)10 P84/AN4 Reserve OUT (Open)11 P85/AN5 VS-ON OUT (Unused)12 P86/AN6 Panel Ready IN (Unused)13 P87/AN7 S IN IN S-Detect14 P30/SO6 TV Relay out OUT POWER ON/OFF SW (Power On: High)15 SB6 IIC-BUS for NV I/O (DATA) Active ‘L’ for IIC data NV16 SCK6 IIC-BUS for NV OUT (CLOCK) Active ‘L’ for IIC clock NV17 SB6 IIC-BUS for TV I/O (DATA) Active ‘L’ for IIC data TV18 SCK6 IIC-BUS for TV OUT (CLOCK) Active ‘L’ for IIC clock TV19 DBGP0 DBGP0 I/O Terminal for De-Bug 120 DBGP1 DBGP1 I/O Terminal for De-Bug 221 DBGP2 DBGP2 IN Terminal for De-Bug 322 PC0 ENA/DATA1 I/O Writing on board (ENA/DATA1)23 PC1 DATA0 I/O Writing on board (DATA0)24 PC2 CLK IN Writing on board (CLK)25 PC3 TB in IN Detection for Video Signal (Time base: H)26 PC4 Reserve OUT (Open)27 P00 WDT out OUT Watch dog timer (Reserved: Open)28 P01 AV SW1 OUT Selection for AV Selector 129 P02 AV SW2 OUT Selection for AV Selector 230 P03 AV SW3 OUT Selection for AV Selector 331 P04 AV SW4 OUT Selection for AV Selector 432 P05 Power Fail-1 in IN TV Power Error (Error: Low)33 P06 STATUS in IN For factory use34 P07 Ack out OUT For factory use35 P20/SO1 5V Discharge OUT36 P21/S11/SB1 Power Fail-2 in IN (Unused)37 P22/SCK1 A-OUT Mute OUT Audio Out Mute (On: High)38 P23 Audio MUTE OUT Audio Mute (On: High)39 UTX UART OUT OUT Digital Module microcomputer piece confidence40 URX UART IN IN Digital Module microcomputer piece confidence41 P26/OSDCK1 REG SW OUT REG On/Off SW (On: High)42 BL2 Reserve OUT (Open)43 VSS2 Vss IN GND (0Vdc)44 VDD2 Power IN IN 5V (5Vdc±10%)45 P10/SO0 Reserve OUT (Open)46 P11/SI0/SB0 Reserve OUT (Open)System Control (CPU : IC801)