Replacing The Main Board - GE Corometrics 170 Series Service Manual

Replacing the Main Board

Equipment Required
Procedure
Revision C
Serviceable Assemblies: Replacing the Main Board
Phillips screwdriver
Main board
part no. 2000243 (Model 171)
part no. 15269 (Model 172)
part no. 2000324 (Model 173)
part no. 2000973 (Model 174)
1. Disconnect the AC adapter from the monitor to completely remove power.
2. Remove the monitor top cover, disconnecting the display board cable and
membrane switch panel cable from J18 and J19, respectively.
3. Disconnect the sensor board cable from J3 on the main board.
4. Disconnect the printhead cable from J1 on the main board.
5. Disconnect the motor cable from J2 on the main board.
6. Disconnect the speaker cable from J4 on the main board.
7. Remove the nine mounting screws from the main board and carefully place the
board on an anti-static surface.
8. For Models 173/174, you will need to transfer the FECG/IUP Board to the new
Main Board. Remove the four mounting screws, then carefully detach the
FECG/IUP Board from J15 and J16 on the Main Board. Carefully align the
FECG/IUP Board onto J15 and J16 on the new Main Board and push into place.
Secure to the stand-offs with the four screws removed earlier.
9. Position the new board in place and follow steps 1–7 in reverse.
170 Series Monitor
2000947-004
7-35