Description: LCD thermistor IC RW error (Control PCB trouble) Reading/Writing failure (DS1847::rdwr) For JFX, 3 PCBs of the keyboard PCB are mounted. • Keyboard PCB Assy. 1: Front operation unit • Keyboard PCB Assy. 2: Maintenance operation unit • Keyboard PCB Assy. 3: X-drive unit
Remedy: 1. Check the connector connection of Keyboard PCB. 2. Check the connector connection between Keyboard PCB ~ Main PCB. 3. Replace the Keyboard PCB with a new one. 4. Replace the Carrier IO PCB with a new one. 5. Replace the Station PCB with a new one. 6. Replace the Main PCB or the X-axis Control PCB with a new one. 7. Replace the Power Supply PCB with a new one.
Code: 122
Display: ERROR 122 CHECK:SDRAM
Description: Insufficient PRAM PRAM size is not sufficient at FW upgrading (fw_updmsg).
Remedy: 1. Update F/W. 2. Confirm the connection between the PRAM PCB and the Main PCB. 3. Replace the PRAM PCB with a new one. 4. Replace the Main PCB with a new one.
Code: 122
Display: SYSTEM HALT (*) 122 : PRAM NONE
Description: No PRAM PCB When PRAM size is 0 in the process of prttask() task starting.
Remedy: 1. Update F/W. 2. Check the connection between PRAM PCB and Main PCB. 3. Replace the PRAM PCB with a new one. 4. Replace the Main PCB with a new one.
Code: 123
Display: SYSTEM HALT (*) 123 : PRAM DATA
Description: PRAM data error When a data error occurs in the CPU PCB SDRAM test at starting the task “prttask()”.
Remedy: 1. Execute and confirm [#TEST]->[MEMORYcheck]-> [S-RAM]. 2. Update F/W. 3. Check the connection between PRAM PCB and Main PCB. 4. Replace the PRAM PCB with a new one. 5. Replace the Main PCB with a new one.
Code: 124
Display: SYSTEM HALT (*) 124 : PRAM ADDR
Description: PRAM address error When an address error occurs in the CPU PCB SDRAM test at starting the task “prttask()”.
Remedy: 1. Execute and confirm [#TEST]->[MEMORYcheck] -> [S-RAM]. 2. Update F/W. 3. Check the connection between PRAM PCB and Main PCB. 4. Replace the PRAM PCB with a new one. 5. Replace the Main PCB with a new one.
Code: 125
Display: SYSTEM HALT (*) 125 : EEPROM READ
Description: EEPROM read trouble Troubles in the EEPROM reading process (eeprom_seq::busy) System parameter and Operation parameter.
Remedy: 1. Update F/W. 2. Upload the parameter and initialize parameter with #PARAMETER. 3. Check the connection state between Main PCB ~ Station PCB. 4. Replace the Main PCB with a new one. 5. Replace the Station PCB (maintenance part) with a new one.