EcLine EC-1559, Service Manual

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43
CHAPTER 4
LOCATING THE PROBLEM
Refer to this section to locate the problem with the machine. The following topics are described.
• General checkout guidelines on the page 43
• Cash drawer checkout on the page 43
• LCD symptoms on the page 44
• Touch screen symptoms on the page 45
• Power symptoms on the page 45
• Network symptoms on the page 45
• USB symptoms on the page 46
• Peripheral-device symptoms on the page 46
• Boot symptoms on the page 46
• Mainboard jumper on the page 47
• Mainboard connectors on the page 49
• Inverter connectors on the page 49
General checkout guidelines
Use the following procedure to troubleshoot problems:
• Identify as many symptoms as possible in detail.
• Verify symptoms by recreating them.
• Follow the corrective procedures in order.
• If you replace an FRU and the symptom remains, reinstall the original FRU before going to the next step.
Do not replace non-defective FRUs.
Cash drawer checkout
Refer to the following to check for a cash drawer problem.
1. Connect the RJ-11 cable from the cash drawer to the RJ-11 connector on the machine as shown in Figure
4.1.
The cash drawer RJ-11 connector is DC+24V. Ensure the cash drawer
to be connected matches this power specification.
IMPORTANT