ViewSonic PX748-4K RS-232/LAN Control Protocol Specification - Page 36

Projector RS-232 Protocol 3.Error response status：(Only for service debug) : Response : 0x05 0x14 0x00 0x16 0x00 0x00 0x00 ErrorStatus(20 Items) checksum 1. Item 1 ~17: 1 byte. 2. Item 18 : First burn In error minutes， 4 Bytes. 3. Item 19: Light source mode Status，1 Byte. 4. Item 20: Light source mode error status，2 Bytes. Total : 32 Bytes 。 Error Count Messages Definition Byte Item Error Order Name Description 1 0x01 LampFailCount Lamp turn on fail 2 0x02 LampLitErrorCount When error occur ,the Lamp Error Status is given out by the lamp driver 3 0x03 Fan1ErrorCount Fan1 fail (Blower fan) 4 0x04 Fan2ErrorCount Fan2 fail (Lamp fan) 5 0x05 Fan3ErrorCount Fan3 fail (Power fan) 6 0x06 Fan4ErrorCount Fan4 fail (The model without 4 fans without this error count) 7 0x07 Diode1OpenErrorCount Thermal sensor 1 lose connection 8 0x08 Diode2OpenErrorCount Thermal sensor 2 lose connection 9 0x09 Diode1ShortErrorCount Thermal sensor 1 short (inlet sensor which located at main board) 10 0x0A Diode2ShortErrorCount Thermal sensor 2 short (power board temperature sensor) 11 0x0B Temperature1ErrorCount Thermal sensor 1 detect temperature over system limitation (inlet sensor which located at main board) 12 0x0C Temperature2ErrorCount Thermal sensor 2 detect temperature over system limitation (power board temperature sensor) 13 0x0D FanIC1ErrorCount Fan IC 1 fain (G793 or G794 or G751) 14 0x0E Color Wheel error count Color wheel do not spin, 15 0x0F Color Wheel startup error count Color Wheel operation error 16 0x10 UART1 error count The DDP4421 internal F/W watchdog function executed 17 0x11 AbnormalPowerdown The user turn off unit without finish cooling process 0x12 18 0x13 First Burn In error minute(4B) The timeframe from burn-in to 1st time shutdown in minute. 0x14 0x15 19 0x16 Lamp Status When error occur, the Lamp Status is given out by the lamp driver 20 0x17 Lamp Error Status 0x18 When error occur ,the Lamp Error Status is given out by the lamp driver a. (0x16) Lamp mode / Light source mode status: b. (0x17,0x18) Lamp mode / Light source mode error status: 34 / 35 Projector RS-232 Protocol