C210 Main Board Removal - Epson DLQ-3000 Service Manual

3.2.2.2 C210 MAIN Board Removal

Step 1) Remove the rear cover. (See Section 3.2.2.1.)
Step 2) Remove 1 screw (CBS, 3x8) securing the C210 MAIN board and the FG terminal
from the control panel to the shield plate.
Step 3) Disconnect all harnesses from the connectors on the C210 MAIN board.
Step 4) Remove 2 screws (CBS, 3X6) securing the C210 MAIN board and the main frame
at the bottom of the I/F shield plate.
Step 5) Remove 2 screws (CBB, 3X10) securing the C210 MAIN board and main frame to
the bottom housing assembly and a grounding ware for the printer mechanism,
then remove the C210 MAIN board and the main frame.
Figure 3-5 . C210 MAIN Board and MAIN Frame Removal
Step 6) Remove 2 screws (CBS, 3X6) securing the Type-B shield case to the I/F grounding
plate, and 2 screws (CBS, 3X6) securing the Type-B shield case and the C210
MAIN board to the main frame.
Step 7) Disconnect the harness for the serial I/F from CN8.
Step 8) Remove earth spring (B) from the I/F grounding plate.
Step 9) Remove I/F guide board from the C210 MAIN board.
Step 10) Remove 2 screws (CBS, 3X6, behind the I/F grounding plate) securing the C210
MAIN board to the main frame and 2 screws (CP, 3X6) securing the I/F grounding
plate to the C210 MAIN board.
Step 11) Remove 3 screws (CBS, 3X6) securing the C210 MAIN board to the main frame.
Then remove the C210 MAIN board.
When connecting the FG terminal, keep the cable away from the Q2.
Rev. A
CAUTION
Disassembly and Assembly
3-7