Pioneer HANDWRITING DEVICE PDK-50HW3 - Manual (Page 39)

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4. Installing and Using Software
2. When all components of test board D (LED) and all components of test board K (Sens) are malfunctioning.
The detailed list indicates “ALL” and not data for each Point.
3. When some components of test board A (LED) and all test board H (Sens) components are malfunctioning
“Check” is indicated when some components are malfunctioning.
The test address number and assessment for all related LED and Sens appear in the detailed list.
Note:
The handwriting device must be reset (disconnect and connect USB cable) to switch DIP switch to service mode.
Note:
“ALL” may indicate a malfunction that is not caused by the
specific board. Control signal lines from the test board A (LED)
and optical signals lines to the test board A (LED) are relayed via
other boards so a malfunction could be caused by defective
connectors on boards in this chain.