Replacing The Receiver Diode For The Remote Control - Bosch BEA 150 Repair Instructions

3. Pull the cable of the receiver diode (3) off connector X12 on
the control module PCB.
4. Remove the cable (4) for the power supply to the bulb of the
TFT display from the control module PCB.
5. Unscrew the four fixing bolts (5) of the front panel in the
interior of the unit.
6. Remove the front panel (6).
7. Unscrew the two fastening screws (7) (at the top and
bottom) of the holder panel (8) for the TFT display.
8. Take the TFT display and holder panel (8) out of the front
panel.
9. Remove the two fastening screws (9) from the retaining
panel (10) of the receiver diode.
10. Remove the receiver diode (11) from the front panel.
11. Fit the individual components in the new front panel in the
reverse sequence to removal.
! Ensure that the receiver diode and TFT display are installed
in exactly the right position.
12. Route the cables through the holes in the housing and re-
insert them in the control module PCB.
12. Install the front panel.
13. Perform a function test of the membrane keypad (Sec. 5.18).
10.25 Replacing the receiver diode for the remote con-
trol
i In order to remove the receiver diode without problem, you
must first remove the exhaust-gas analyzer module.
1. Pull the foil cable (1) of the TFT display out of receptacle
X 17 on the control module PCB.
2. Pull the foil cable (2) of the membrane keypad out of X13 on
the control module PCB.
3. Pull the cable of the receiver diode (3) off connector X12 on
the control module PCB.
4. Remove the cable (4) for the power supply to the bulb of the
TFT display from the control module PCB.
5. Unscrew the four fixing bolts (5) of the front panel in the
interior of the unit.
6. Remove the front panel (6).
7. Remove the two fastening screws (7) from the retaining
panel (8) of the receiver diode.
8. Remove the receiver diode (9) from the front panel.
9. Fit the individual components in the new front panel in the
reverse sequence to removal.
! Ensure that components are installed in exactly the right
position.
10. Route the cables through the holes in the housing and re-
insert them in the control module PCB.
11. Install the front panel.
12. Perform a function test of the receiver diode (Sec. 5.20).
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