• Code: E906-0022
• Description: Low temperature error at the air heater for the lower multi-cassette deck. A low-temperature error was detected at the lower multicassette deck.
• Remedy: Failure of the air heater unit (HT301). Failure of the air heater PCB harness. Failure of the lower deck air heater PCB. Failure of the AC distribution PCB (F6). Failure of the deck driver PCB. Failure of the DC controller PCB in the host machine.

• Code: E907-0001
• Description: Multi-cassette deck pickup motor error. The multi-cassette deck pickup motor (DC) is not locked even when a specified time has elapsed.
• Remedy: Failure of the deck pickup motor (M001). Failure of the deck driver PCB. Failure of the DC controller PCB in the host machine.

• Code: E991-0000
• Description: Backup RAM error. SRAM in the DCON detected data error.
• Remedy: Replace the DCON PCB