Specifications

CAUTION! Once the Trimmer Interface board is removed from the EMC 10/4, use
extreme care in handling it. Portions of this board are very sensitive to static
charges. Any further handling of the Trimmer Interface board must be done with
the continued use of the static grounding strap still installed as instructed in specific
procedures in this manual.
8. To replace the Trimmer Interface board, perform the previous steps in reverse
order.
Backplane PCB Replacement
The backplane PCB sits on bottom of the controller section, and contains the
connector where both the CPU and trimmer interface PCBs are inserted.
1. To remove and replace the backplane PCB, first remove the controller section
rear cover #4, the EMI box cover, CPU PCB, and trimmer interface board as
earlier described.
2. Disconnect the cables from the backplane PCB, then remove the screws holding
the PCB to the base of the controller section; and any ground wire attached to
the screws.
3. Lift the PCB out of the controller section.
4. Replace the backplane PCB using the previous steps in reverse.
Keyboard Section
Keyboard/Display Replacement
To remove the keyboard/display assembly from the cover, refer to Figure 3-6 and
the following procedure:
1. Turn OFF the power switch to the EMC 10/4 and remove the power cord from
the power source electrical outlet and the rear of the machine.
2. Refer to the Tensioner Cover removal section of this manual and remove the
lower front cover under the keyboard and between the middle two embroidery
head needle cases.
3. Next, remove the screw from the rear tensioner cover that goes into the top and
rear of the keyboard cover.
4. Install a static grounding strap as described in an earlier procedure.
5. Disconnect the keyboard harness connection from the PCB.
6. Remove the ground wire from the rear bottom of the keyboard cover.
3 - 8 Keyboard Section
EMC 10/4 Technical Manual Melco Embroidery Systems