Lcd Circuit Board - Circuit Diagram - Pfaff ambition essential 1.0 Service Manual

LCD Circuit board - Circuit diagram

FOR SAFTEY REASONS ALWAYS DISCONNECT THE POWER CORD FROM THE MACHINE BEFORE
REMOVING THE CIRCUIT BOARD AND MAKE SURE TO USE WRIST BAND AND ESD MAT.
ATTENTION!
It is of the utmost importance that precautions are being taken in order to avoid damage of the electronics
by electro static discharges (ESD). To avoid these errors it is important to handle circuit boards in a
controlled way.
Dismantling
1. Remove rear covers.
2. Remove front cover.
3. Disconnect the cables from the circuit board according to below:
CN1. LCD Touch panel
CN2 Speed sensor
CN3. Start/stop button, reverse/ autolock, LED lamp
CN4. Functions buttons (ambition 1.5)
CN5. Functions buttons (ambition 1.0)
CN6. Functions buttons (ambition 1.0 and 1.5)
4. Remove the 4 screws (A) holding the circuit board.
5. Lift away the board from the front cover, and ALWAYS hold the PC board by the edges.
6. Place the board in a ESD Bag.
50
Dismantling and mounting
CN5
CN1
104 73 15-26
CN4
CN6
CN2
CN3