Loading ...
Loading ...
Loading ...
SEWING MACHINE DIV. 20 MODEL 385.19001890
ELECTRONICQUICK CHECK
I.CHECKING
TURN THE POWER SWITCH ON.
*IF NOTHING HAPPENS ON THE MACHINE;FIRST,REPLACE THE FUSE(SEE PAGE 50)
1. CHECK ALL WIRE CONNECTIONS (SEE PAGE 5),
2. CHECK THE C-BOARD (SEEPAGE 50).
CHECK THETRANSFORMER (SEEPAGE 51).
CHECK THE SOCKET (SEEPAGE 52),
IF THEC-BOARD,TRANSFORMER AND SOCKET ARE ALL OK, AND
NOTHING HAPPENS ON THE MACHINE, REPLACE THEA-BOARD (SEEPAGE 53).
*IF SEWING LIGHT DOES NOT TURN ON;
1. CHECK THEFILAMENT IN THE LIGHT BULB.
IFTHE FILAMENT ISBROKEN, REPLACE THE LIGHT BULB.
2. IF LIGHT BULBISOK, AND LIGHT STILLDOES NOT TURN ON, REPLACE
THEA-BOARD (SEE PAGE 53).
*IF LCD DOES NOT TURN ON;
1, TURN THESCREEN SHARPNESSADJUSTMENT DIAL.
2. IF LCD STILLDOES NOT SHOW ANYTHING, REPLACE THEA-BOARD FIRST.IF
LCD STILLDOES NOT TURN ON, REPLACE THELCD.
*IF LCD SHOWS NOTHING;
1. REPLACE A-BOARD FIRST.IF LCD STILLSHOWS NOTHING, REPLACE THE LCD.
2.PREPARATION
_BECAREFUL IN CHECKING ALL OPERATIONS SINCE THEMACHINE MAY
SUDDENLY STARTRUNNING,
1. TURN THE POWER SWITCH OFF,
2. SETTHEBOBBIN WINDER SPINDLETO THE LEFT,
3. RAISE THE FEED DOG.
4. SHIFTSPEEDSETTINGSLIDE LEVERTO THE LEFT.
5. DETACH THE PRESSERFOOTAND RAISE THE PRESSERFOOT LIFTER.
6. MOVE THE NEEDLE BAR TO THE UP POSITION.
7, CONNECT THEFOOT CONTROL.
8. LOWERTHE BH LEVER,
11
Loading ...
Loading ...
Loading ...