User manual JANOME GREEN 19 NEW EDITION

[. . . ] SERVICE MANUAL 3160QDC INDEX What to do when . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3 Changing External Parts Face Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Free-arm Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The sewing machine lamp does not light up: • Replace the light bulb • Replace the A-board To enter self-diagnostic mode: Turn the power switch on while simultaneously pressing needle up/down button and the locking stitch button. The LCD display will indicate “01”. Press the start/stop button to enter the self-diagnostic mode. 18 Self-diagnostic Test Step and items to check 01) Function of LCD, buzzer and lamp Procedure Turn on the power switch while simultaneously pressing the start/stop button and locking stitch button. If the result is correct condition, press the start/stop button to proceed the next step. If the result is defective condition, press the reverse stitch button to proceed the next step. LCD repeats displaying after all symbols and –REMEDY– Replace the circuit board A. Button number is displayed when the button is pressed. Buzzer does not sound. Replace the circuit board F. If the result is correct condition, press the start/stop button to proceed the next step. If the result is defective condition, press the reverse stitch button to proceed the next step. LCD displays “S3” when button 1 is pressed. When the buttonhole lever is pulled, buzzer sounds and LCD displays BH symbol. When the buttonhole lever is pushed, buzzer sounds and LCD displays BH symbol. Replace the circuit board F. 03) Buttonhole Sensor Lower the buttonhole lever. If the result is correct condition, press the start/stop button to proceed the next step. If the result is defective condition, press the reverse stitch button to proceed the next step. 04) Bobbin winder switch Move the bobbin winder spindle to the right. If the result is correct condition, press the start/stop button to proceed the next step. If the result is defective condition, press the reverse stitch button to proceed the next step. BH symbol LCD displays "SC 04". Buzzer does not sound. When the bobbin winder spindle is moved to Bobbin symbol is not displayed. When the bobbin winder spindle is moved to –REMEDY– the right, buzzer sounds and LCD displays Replace the circuit board A. Replace the circuit board F. Bobbin symbol 19 Self-diagnostic Test Step and items to check 05) Presser foot lifter switch Procedure Raise or lower the preser foot lifter. If the result is correct condition, press the start/stop button to proceed the next step. If the result is defective condition, press the reverse stitch button to proceed the next step. The presser foot symbol does not appear when the presser foot is lowered, or does not disappear when the presser foot is raised. Replace the circuit board P. Presser foot symbol 06) Upper shaft positioning sensor Turn the handwheel toward you. Raise the needle bar from its lowest position to its highest position. [. . . ] Press locking stitch button to select “d” r. Press the start/stop button to determine the setting. Turn the power switch off. q w Model 3160QDC e Model 2030DC r Model 2160DC 24 Replacing the Electronic Components Driving motor To remove: 1. The belt should deflect 5 mm when applying 200 grams of load to the middle of the belt. Attach the rear cover and the front cover. Setscrew Belt 200g pressure 5 mm Setscrew DC motor (unit) 25 Replacing the Electronic Components Switching regulator unit To remove: 1. [. . . ]