Sanyo LCD-20CA1Z Service Manual

Also see for LCD-20CA1Z: Instruction manual

Contents

-6-CPU Port FunctionsPin No. Function Name Function IN/OUT1 VSS GND -2 BL-BRI FOR PANEL BACK LIGHT BRIGHTNESS OUT3 PWM1 SOUND MUTE OUT4 DISPLAY ON DISPLAY ON OUT5 POWER DOWN POWER DOWN OUT6 STAND-BY POWER ON/OFF OUT7 PANEL ON PANEL ON OUT8 SCALER RESET SCALER RESET (RESET=LOW) OUT9 VDATR RESET VDATR RESET OUT10 BL-ON PANEL ON OUT11 SCL1 IIC BUS PRT FOR EEPROM (SCL: CLOCK) I/O12 SDA1 IIC BUS PRT FOR EEPROM (SDA: DATA) I/O13 P53 PANEL OPTION (HIGH=15”, LOW=20”) IN14 P54 BASS OUT15 AFT AFT INPUT IN16 SENSOR-IN P-FAIL2 (FAILURE=Less than 4V) IN17 KEY KEY INPUT IN18 MODE1 MODE1 OUT19 MODE2 MODE2 OUT20 SAW SW SAW SWITCH OUTPUT OUT21 OSD-I OSD-I OUTPUT OUT22 OSD-R OSD RED OUTPUT OUT23 OSD-G OSD GREEN OUTPUT OUT24 OSD-B OSD BLUE OUTPUT OUT25 OSD-Y OSD BLANKING OUTPUT OUT26 P70(HD) H-SYNC. IN IN27 P71(VD) V-SYNC. IN IN28 OSC1 CLOCK INPUT FOR OSD IN29 OSC2 CLOCK OUTPUT FOR OSD OUT30 TEST TEST PORT IN31 XIN CLOCK INPUT FOR MAIN IN32 XOUT CLOCK OUTPUT FOR MAIN OUT33 RESET RESET PORT (RESET=LOW) IN34 P-FAIL1 POWER FAILURE (FAILURE=LOW) IN35 RMT RC INPUT IN36 BVIREADY BVIREADY IN37 SCL0 IIC BUS PORT FOR IC I/O38 SDA0 IIC BUS PORT FOR IC I/O39 GND GND --40 FORMAT2 STATUS IN41 FORMAT2 ACK IN42 VDD VDD 5V --