Happy HCS-1201-30, Maintenance Manual

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Memory - Checking of memory space and clearing all
5-6-3
Checking that work and action of pattern memory area are correct, please clear all. After clearing, when you turn power on,
E-120 is displayed. After display, please turn power on again.
When you face situation that you can't put pattern in or pattern was destroyed, or when you replace CPU circuit board,
please conduct this mode.
When something is wrong, malfunction of circuit board is conceivable. Please replace it.
# Clock display will be initializing by all clear. Reset a clock after all clear.
(Refer to the instruction book to set the clock)
1. Press “ ” button and press “ENT” button with display of Memory.
2. Setting “ ” button to OK, press “ENT” button.
3. Chip : Display off 1-00. Ringing of buzzer indicates that clearing has finished.
4. If there is something wrong, following display appears.
5. Press “ENT” button to return to display of [Procedure 1].
6.Turn power off, then turn power on again.
“ E-120 “ will be displayed on LCD.
7.Turn power off.
8. Referring to [5-4-1 Adjustment of revolution] and [5-5-1 Setting to detect needle position (for 12 needles)], make setting.