Carriage Pcb Assy - Brother GT-3 Series Service Manual

6-2-18. Carriage PCB Assy

Adjust the firmware with GT-3 Service Tool, after you replace to the new Encoder PCB Assy. (Refer to "3-3.
GT-3 Service Tool".) Refer to the page "How to connect/disconnect the FFC Connector" in this session (next
page) when you handle FFC Connectors.
Required Tools
・ Thermistor
Disassembling
1.
Remove the AC Cord and open the Cover UB.
2.
Disconnect the Harness: Encoder (1) from the Connector (CN5) (1) on the Carriage PCB.
Remove the two Fixing Tubes (2) and remove the Carriage PCB Upper Cover (3)
(1)
CN5
3.
Disconnect all the FFCs (4) that connect to the Carriage PCB.
<Note>The FFCs (5) in blue frame are not available, depending on the models.
(5)
(4)
(3)
GT-3 Series
6. Replacing Parts
(3)
(2)
337