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Text excerpt from page 18 (click to view)
SECTION 4 ELECTRICAL ADJUSTMENTS
TEST MODE This set have the test mode function. <Set the Test Mode> 1. Turn ON the regulated power supply. (The clock is displayed)
[OFF] button, if the clock is not displayed. 2. Push the preset  button. 3. Push the preset  button. 4. Press the preset  button for more than two seconds.
5. Then the display indicates all lights, the test mode is set. <Release the Test mode> 1. Push the [OFF] button.
Note: Press the
MD section adjustments are done automatically in this set.
Tuner section adjustments are done automatically in this set.