Sony HKCU-HB10 Maintenance Manual page 51

[Female connector]
The optical contacts for female connector are in an unexposed state. In cleaning, it is necessary to be
exposed by removing the adapter in the connector in advance. Proceed as follows.
1. Loosen the adapter pin at the center of the connector counterclockwise with a screwdriver.
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If there is no screwdriver, use the plate attached to the connector cap.
2. Pull the adapter pin out of the connector in the arrow direction.
3. Clean the white optical contacts with a cotton swab moistened with alcohol.
Adapter pin
4. Match the positioning marks of the adapter and the connector, and then push the adapter into the
connector.
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Push the adapter until the confi rmation groove comes in sight as shown in the fi gure.
Positioning marks
5. Tighten the adapter pin clockwise until you feel that it is fi xed to some extent.
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Do not fully tighten the adapter pin.
LC type connector
Clean the tip of the white optical contacts with a cotton swab moistened with alcohol.
HKCU-HB10
Adapter
Confirmation groove
Adapter
Optical contact (white)
Optical contact (white)
Optical contacts (white)
2-23 (E)