Changing volume knobs for the upper and lower sensors

Be sure to turn the cabinet off before beginning procedures.

When disconnecting connectors, be sure to pull the connector's main section without pulling on the cord.

Prepare the items listed below before beginning procedures.

• Tools Phillips screwdriver (with a total length of 150 mm or less), subtensil 12mm spanner, soldering iron, vinyl (duct) tape

The volume module for the upper and lower sensor is on the right side of the gun unit assembly. When it becomes old, the crosshairs will not synchronize vertically and will need to be replaced.

3-pin connector

3-pin connector

3-pin connector

3-pin connector

(2 screws) V""

Volume module

Volume module

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Warning: With the vertical sensor volume module, use the holes shown in the diagram to position the volume bracket fixture and volume module. (Attach the volume module at a slightly diagonal position as shown in the left diagram.)

Use Ihese holes to position the module.

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1. Remove the gun stand.

2. Remove the 3-pin connector.

3. Remove the M3 x 5 small pan-head screws and the volume bracket.

4. Remove the nut and ridged washer, then remove the volume module from the volume socket.

5. Remove the 3-pin harness from the old volume module and solder on a new one.

• Be careful of wire colors.

• Insulate the terminals with vinyl (duct) tape.

6. Attach the new volume module into the volume bracket.

• Be careful of the orientation of the volume when installing it.

• Do not fasten the nut too tightly.

3-pin harness

Volume bracket fixture Attach the volume bracket to the gun unit assembly and connect the 3-pin connector.

8. Attach the gun stand covers.

Warning: With the vertical sensor volume module, use the holes shown in the diagram to position the volume bracket fixture and volume module. (Attach the volume module at a slightly diagonal position as shown in the left diagram.)

Use Ihese holes to position the module.

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