Service Manual
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5) Press the "SERVICE 1" button to increase the rst digit in the display and the
"SERVICE2" button to increase the second digit. Digits appear in the following order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. When a valid model code is displayed, the dot
in the bottom right of the display turns on. For IM-500SAA, set model code to "08".
6) When the desired model code is displayed, press the "RESET" button to save the
setting. "on" appears in the display.