• Code: C0170
• Description: Charger count error
• Causes: The values in one of the billing counters, life counter or the scanner counter mismatch between the main side and the engine side.
• Remedy: 1 Checking the machine serial No. of the main PWB The main unit for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct main PWB if the MAIN No. differs. U004 Execution 2 Checking the machine serial No. in the EEPROM on the engine PWB The EEPROM for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct EEPROM on the engine PWB if the ENGINE machine serial No. differs. U004 Execution 3 Checking the main PWB The main PWB is faulty. When the MAIN machine serial No. differs at U004, replace the main PWB and execute U004. U004 Execution 4 Checking the EEPROM on the engine PWB The EEPROM is faulty. When the machine serial No.in the engine PWB differs at U004, reattach the EEPROM on the engine PWB. If not repaired, replace the EEPROM and execute U004. Note: Be sure not to execute U004 if the machine serial No. differs from the machine serial No. indicated on the main unit to prevent the different machine serial No. from overwritten. (Dontselect[ Execute]andpressthe[ Start]key.)' U004 Execution 5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Engine PWB Replacement

• Code: C0180
• Description: Machine serial number mismatch
• Causes: The machine serial Nos. in the main PWB and the EEPROM on the engine PWB mismatch when turning the power on.
• Remedy: 1 Checking the machine serial No. of the main PWB The main unit for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct main PWB if the MAIN No. differs. U004 Execution 2 Checking the machine serial No. in the EEPROM on the engine PWB The EEPROM for the different main unit is installed. Check the machine serial Nos of MAIN and ENGINE at U004, and install the correct EEPROM on the engine PWB if the ENGINE machine serial No. differs. U004 Execution 3 Replacing the main PWB The main PWB is faulty. When the MAIN machine serial No. differs at U004, replace the main PWB and execute U004. U004 Execution 4 Checking the EEPROM on the engine PWB The EEPROM is faulty. When the machine serial No.in the engine PWB differs at U004, reattach the EEPROM on the engine PWB. If not repaired, replace the EEPROM and execute U004. Note: Be sure not to execute U004 if the machine serial No. differs from the machine serial No. indicated on the main unit to prevent the different machine serial No. from overwritten. (Dontselect[ Execute]andpressthe[ Start]key.)' U004 Execution 5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Engine PWB Replacement

• Code: C0350
• Description: Panel PWB communication error (Electronic volume I2C communication error)
• Causes: Since NACK was received during the I2C communication, the retry was repeated 5 times and the initial command was transmitted, and then the retry was repeated 5 times again. After that, NACK was also received.
• Remedy: 1 Resetting the main power The operation of the operation panel main PWB is faulty. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Checking the wire The wire is not properly connected to the operation panel main PWB. Reinsert the following wire connectors.• Operation panel PWB - Main PWB• Operation panel PWB - NFC PWB Electrical Diagram of PWBs 3 Replacing the wire The wire connecting to the operation panel main PWB is faulty. Replace the following wires if they are broken, short-circuited or have a ground fault.• Operation main PWB - Main PWB• Operation main PWB - NFC PWB Electrical Diagram of PWBs 4 Replacing the operation panel main PWB The operation panel main PWB is faulty. Replace the panel main PWB. Operation Panel Main PWB Replacement 5 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Main PWB Replacement 6 Replacing the NFC PWB The NFC PWB is faulty. Replace the NFC PWB.

• Code: C0361
• Description: Communication error between the engine CPU and the feed ASIC
• Causes: The communication with the feed ASIC failed 10 times continuously.
• Remedy: 1 Resetting the main power The engine PWB does not operate properly. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Upgrade 3 Checking the feed drive PWB The feed drive PWB is faulty. Reconnect the wire connectors between the feed drive PWB and the engine PWB. Then, fix or replace the wires if they are pinched by the other part or if they have any damage. When the issue is not resolved, replace the feed drive PWB. Electrical Diagram of PWBs 4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Engine PWB Replacement

• Code: C0362
• Description: Communication error between the engine CPU and the feed ASIC
• Causes: The communication with the feed ASIC failed 10 times continuously.
• Remedy: 1 Resetting the main power The engine PWB does not operate properly. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Upgrade 3 Checking the feed image PWB The feed image PWB is faulty. Reconnect the wire connectors between the feed image PWB and the engine PWB. If the wires are pinched or it have any damage, fix or replace them. Electrical Diagram of PWBs 4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Engine PWB Replacement

• Code: C0640
• Description: Hard Disk error
• Causes: The HDD cannot be accessed properly.
• Remedy: 1 (For the main unit without the HDD) Replacing the SSD When installing the 8GB HDD mistakenly, it tries to access the HDD. At that time, the error appears if the HDD is not installed in the main units . Replace with the correct 32GB SSD. SSD Replacement 2 (When abnormal sounds occur) Replacing the HDD The HDD is faulty. Replace the HDD when the abnormal sounds are from the HDD. HDD Replacement 3 Checking the SATA cable and the wire The SATA cable between the HDD and the main PWB is not properly connected. Reconnect the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 4 Replacing the SATA cable and the wire The SATA cable between the HDD and the main PWB is faulty. Replace the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 5 Initializing the HDD The HDD storage data is faulty. Execute U024 [FULL] (HDD Format). U024 Execution 6 Replacing the HDD The HDD is faulty. Replace the HDD. HDD Replacement 7 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Main PWB Replacement

• Code: C0660
• Description: Hard Disk encryption key error
• Causes: 1. The encryption password input when replacing the main PWB was incorrect.2. The SSD used in the other main unit was installed.
• Remedy: 1 (When the issue occurs after replacing the main PWB) Executing U004 The encryption key after replacing the main PWB is faulty. Execute U004 when this issue occurs after replacing the main PWB. U004 Execution 2 Replacing the HDD (abnormal sounds) The HDD is faulty. Replace the HDD when the abnormal sounds are from the HDD. HDD Replacement 3 Checking the SATA cable and the wire The SATA cable between the HDD and the main PWB is not properly connected. Reconnect the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 4 Replacing the SATA cable and the wire The SATA cable between the HDD and the main PWB is faulty. Replace the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 5 Initializing the HDD The HDD storage data is faulty. Execute U024 [FULL] (HDD Format). U024 Execution 6 Replacing the HDD The HDD is faulty. Replace the HDD. HDD Replacement 7 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Main PWB Replacement

• Code: C0670
• Description: Hard Disk overwriting error
• Causes: The area that cannot be properly overwritten exists in a part of the HDD.
• Remedy: 1 Replacing the HDD (abnormal sounds) The HDD is faulty. Replace the HDD when the abnormal sounds are from the HDD. HDD Replacement 2 Checking the SATA cable and the wire The SATA cable between the HDD and the main PWB is not properly connected. Reconnect the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 3 Replacing the SATA cable and the wire The SATA cable between the HDD and the main PWB is faulty. Replace the SATA cable and the wire between the HDD and the main PWB. HDD Replacement 4 Initializing the HDD The HDD storage data is faulty. Execute U024 [FULL] (HDD Format). U024 Execution 5 Replacing the HDD The HDD is faulty. Replace the HDD. HDD Replacement 6 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Main PWB Replacement