Circuit Board - Circuit Diagram - Husqvarna Viking Designer I Service Manual

Circuit board - Circuit diagram

Dismounting
1. Dismount rear cover .
2. Dismount front cover .
3. Loosen the 3 screws (A) holding the circuit board and the cooling plates
and lift out the board from the machine.
4. Loosen the cables from the circuit board according to below:
(1) Right push buttons assembely
(2) Left push button assembely
(3) Floppy disk drive
(4) LC Display
(5) LC display transformer box
(6) Stop right board
(7) Thread cutter assembely
(8) Transformer
(9) Motor. Red cable down
(10) Thread tension
(11) Side feedings step motor
Note! 1.The contacts can be loosened by cautiously bending away the outer
covering with a thin screwdriver.
2. If the Main PC board is changed the memory always has to be updated
with the latest version.
44
Dismantling and mounting
(12) Feeding step motor
(13) Touch foil key board
(14) Embroidery Unit
(15) Conecting Sewing head board-ciruit board
(16) Lamp - front cover
(17) Lamp - Sewing head
(18) Step motor of the pressar foot lifter
(19) Stepmotor of the needle.
(20) Sensor of the pressarfoot lifter
(21) Pressar foot sensor
(22) Sewing head card
(23) Switch jumper. Note the position
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