ABB SM500F Instruction page 2

4 Display assembly replacement
CAUTION – Minor injuries
The recorder is vulnerable to electrostatic damage.
Wear an anti-static strap or place the instrument on
an anti-static workbench.
1. Disconnect the recorder from the power supply.
Referring to Fig. 4.1:
2. Unlock the door with the key A, press release catch B
and open the door.
3. Remove the tamper evident seal if fitted, release captive
screw C securing the inner cover plate and remove the
inner cover plate.
4. Remove the 2 Torx screws D securing the cable clamp
and remove the cable clamp.
Fig. 4.1 Removing the cable clamp
Referring to Fig. 4.2:
5. Disconnect the processor board flexi-cable E from the
motherboard.
Fig. 4.2 Disconnecting the processor board flexi-cable
2 IN/RandC/005-EN Rev. A | SM500F paperless recorder | Color display replacement (instruments manufactured from July 2016)
Referring to Fig. 4.3:
6. Remove the slotted spring (Bissel) pins F, remove the
door assembly and place it face down on the work surface.
Fig. 4.3 Removing the door hinge pins
Referring to Fig. 4.4:
7. Remove 6 Torx screws G securing the door assembly
rear cover and remove the rear cover.
Fig. 4.4 Removing the rear cover
Referring to Fig. 4.5:
8. Disconnect the processor board flexi-cable H, display
flexi-cable I and keypad membrane cable J from
the processor board and lift out the processor board.
Fig. 4.5 Disconnecting the processor board
flexi-cable