Christie DWU851 Service Manual page 67

DWU851(DD1-WU70P/71P) / DHD851(DD1-HD70P/71P) / DWX851(DD1-WX70P/71P)
STATUS MONITOR, SUB LCD / KEYPAD PCB, CONTROL BUTTON
Disassembling
1)
cable.
2) Release the STATUS MONITOR from 2 hooks on the
CONTROL BUTTON frame.
3) Tear off the tape and disconnect the harness from the
back side of the SUB LCD PCB.
4) Release the SUB LCD PCB from a hook on the
CONTROL BUTTON frame.
5) Disconnect the harness and tear off the tape from the
KEYPAD PCB.
6) Remove 3 screws and the earth cable CNGD1 from the
KEYPAD PCB.
Assembling
1) Screw the KEYPAD PCB and CNGD1 down while
holding the frame to avoid warping it.
2) Fasten the SUB LCD PCB with a hook on the
CONTROL BUTTON.
3) Connect the harneses and tape them to the PCBs
as before.
4) Fasten the STATUS MONITOR on the CONTROL
BUTTON (frame) at 2 hooks, and turn the stopper
cable.
5) Align the LCD cushion to the frame of CONTROL
BUTTON and stick it to the frame as shown in the
drawing.
NOTE:
The LCD cushion comes together with the
STATUS MONITOR of service parts.
Wiring
Connect CNKEY and CNLCD and bind them.
Be careful of the styling of CNGD1.
Check if the cable tie
binds CNKEY and CNLCD
at about 10mm from the
connector of CNKEY.
Tape CNLCD (W=20mm).
SUB LCD PCB
Connect CNLCD.
DWU851/DHD851/DWX851
Service Manual
020-000755-01 Rev. 1 (11-2014)
Connect CNKEY.
KEYPAD PCB
66
LCD cushion
ER50
CONTROL BUTTON
Hold
KEYPAD
PCB
T3x10, black screw,
torque: 0.39~0.59N·m
Screw down the end of CNGD1 to point it upward.
Be careful not to let it be over the frame.
Hook
CONTROL BUTTON
STATUS MONITOR
STATUS MONITOR
0~0.5mm
CONTROL BUTTON
Style CNGD1 as shown and
tape it (W=20mm).
STATUS MONITOR
Hook
SUB LCD PCB
LCD cushion
LCD cushion
0~0.5mm