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Proper usage for LCD connectors

Thank you very much for your interest in this article and for taking your time.
We would like to show you how to properly connect and unconnect FFC (Flat Flexible Cables) to LCD connectors while avoiding to damage your product.  This How-to applies to any product listed within the following requirements.

 

Requirements:

LCD Connector (bottom contact type)

 

FH-12 40pin Hirose LCD connector

 

*Note:

A mere force of only 6.9 Newtons is required for Hiteg product LCD connectors, which is very little.

Step 1: Connecting an FFC cable into the LCD connector

1.1 Lift-up the actuator with the thumb or index finger so that it is perpendicular to the PCB.

Proper LCD connector usage

1.2 Fully insert the FFC parrallel to the mounting surface, with the exposed conductive traces facing down.

Proper LCD connector usage

1.3 Rotate down the actuator until firmly closed.  It is critical that the inserted FFC is not moved and remains fully inserted.  Should the FFC be moved, open the actuator and repeat the process. starting with Step 1.

Proper LCD connector usage

 

Step 2: Removing an FFC cable from an LCD connector

2.1 Lift up the actuator exactly the same as done in Step 1.1.

Proper LCD connector usage

2.2 Carefully remove the FFC cable.

Precautions

Avoid grasping the actuator with two fingers or lifting the actuator with the fingernail.

Precautions for usage of an LCD connector

Do not use a thin tool such as the tip of a screwdriver to release the lock lever.  Doing so will cause deformation fo the contacts.

Precautions for usage of an LCD connector
Do not apply force in the direction of arrows A,B, or C while the lock lever is open.  Doing so will cause the lock lever to become disengaged, or will damage the hook portion to the connector body.
Precautions for usage of an LCD connector
When inserting the FFC, do not forcefully rub against the surface beneath the connector insertion slot.  Doing so will result in the FFC forcefully striking the contacts and this will cause contact deformation, peeling of the FFC conductors, and other irregularities.
Precautions for usage of an LCD connector
Insert the FFC at the proper position of the connector insertion slot, and insert it perpendicularly with respect to the connector.  Improper insertion will cause continuity problems, disengagement of the lock lever, and damage to the hook portion.
Precautions for usage of an LCD connector
Partial insertion of the FFC, offset insertion, and diagonal insertion will result in an unfavorable engagement of the lock lever in which the lock lever is raised.  To correct this, first remove the FFC and then reinsert it.  Forcing the lock will damage the connector.
Precautions for usage of an LCD connector
When locking, handle the FFC so that a load is not applied to the FFC as would occur by pulling the FFC, of lifting it, etc.  When a load is applied in the opposite direction to the rotational movement of the lock, an excessive load will be applied and this will cause connector damage.
Precautions for usage of an LCD connector
At the time of lock operation, application of force such as that indicated by the arrows in the diagrams below will cause the lock lever to disengaged, please exchange the entire connector.

Precautions for usage of an LCD connector

Precautions for usage of an LCD connector

Congratulations!

You now have the knowledge of how to properly connect and unconnect FFC cables into LCD connectors.


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