10 Repair and Disassembly
180
Replacing the Stepper Motor
1
Refit the stepper motor to the recorder chassis, but do NOT tighten the screws yet! The upper slot
on the stepper motor allows fine adjustment when meshing the gears together.
2
Close the drawer assembly.
3
Gently mesh the stepper motor gear with that of the paper roller.
CAUTION
Do NOT press the gears together or exert any pressure on the stepper motor spindle.
4
When in place, tighten the screws, remembering that the upper screw is secured with a small nut.
Replacing the Top Cover Assembly
1
Ensure all items are replaced in the top cover assembly. Check that all the cables are reconnected.
2
Carefully align the front edge of the top cover assembly with the front edge of the bottom housing
assembly.
3
With the front edge of the top cover still located in the front edge of the bottom housing, gently
lower the top cover, making sure the multi-pin connector on the recorder adapter board aligns
with the socket on the main CPU board.
Summary of Contents for Avalon FM20
Page 2: ......
Page 6: ...6 ...
Page 38: ...3 Installation Instructions 38 ...
Page 46: ...4 Theory of Operation 46 ...
Page 155: ...10 Repair and Disassembly 155 11 Put the two halves of the display assembly together as shown ...
Page 167: ...10 Repair and Disassembly 167 10 Remove the four screws holding the recorder chassis ...
Page 169: ...10 Repair and Disassembly 169 12 Remove the RFI bracket 13 Lift out the recorder chassis ...
Page 254: ...12 Specifications 254 ...
Page 259: ......
Page 260: ...Part Number 453564541271 Published in Germany 11 14 453564541271 ...