Denon DCM 390 Serial Protocol - Page 17

Revision1.40 Date 24.May.'07 DCM390 Serial Interface Specification 17 page of 40 2.6.4 REQUEST ERROR CODE command With this command the host can get ERROR CODE from the device in case of something wrong. 1) Command format Byte/bit 7 6 5 4 3 2 1 0 0 STX (0x02) 1 Command code ('2') 2 Reserve (0x00) 3 Reserve (0x00) 4 Reserve (0x00) 5 Reserve (0x00) 6 ETX (0x03) 7 BCCH (high-level) 8 BCCL (low-level) Table 15. Request Error Code command 2) Answer format Byte/bit 7 6 5 4 3 2 1 0 0 STX (0x02) 1 Reply code ('2') 2 Answer code (Table 3) 3 1st error code (Table 17) 4 2nd error code (Table 17) 5 ETX (03h) 6 BCCH (high-level) 7 BCCH (low-level) Table 16. Request Error Code answer No. Error code 1st 2nd Detail 1 0x20 0x20 Loading error 2 0x21 0x21 Loading switch error 3 0x22 0x22 Focus servo error 4 0x23 0x23 Tracking servo error 5 0x24 0x24 Can't adjust FOCUS offset value for servo circuit 6 0x25 0x25 Can't adjust TRACKING offset value for servo circuit 7 0x26 0x26 Can't adjust FOCUS gain value for servo circuit 8 0x27 0x27 Can't adjust TRACKING gain value for servo circuit 9 0x28 0x28 Focusing failed in playing or searching or pausing 10 0x29 0x29 During spinup, data of disc does not read 11 0x2A 0x2A During play, data of disc does not read 12 0x2B 0x2B Cannot read within a preset time period in TOC reading. 13 0x2C 0x2C Sub code data does not read 12 0x2D 0x2D Command error occurs 13 0x2E 0x2E Focusing failed in scanning Table 17. Request Error Code answer 3) Special condition If error code is empty, using '00'. - Error code is the following. - After error occurs, it receives only "OPEN /CLOSE" KEY. D&M