How-to replaced the board-C on a DVL-75

Please Read: Reducing electrostatic discharges.

• Limit your movement. Movement can cause static electricity to build up around you.

• Wear an electrostatic-discharge wrist strap, if available.

• Handle the device carefully, holding it by its edges or its frame.

• Do not touch solder joints, pins, or bare circuitry.

• Please do not leave the device where others can handle and damage it.

• While the device is still in its static-protective package, touch it to an unpainted metal part of the chassis or rack for at least 2 seconds. Touching the chassis drains static electricity from the package and from your body.

• Remove the device from its package and install it immediately without setting down the device. If it is necessary to set down the device, put it back into its static-protective package.

• Take extra care when you handle devices during times of cold weather. Indoor heating reduces ambient humidity and increases the conditions that cause static electricity to accumulate.

Remove two locator screws

Remove one of the blank penetrators

Separate Housing

Note the positions of all JST connectors, then disconnect all JST connectors

Remove five screws through top PCB with 2.5mm hex driver

Detach top PCB

Remove five standoffs with 4.5mm nut driver

Remove and replace bottom PCB

 Proceed with reversed instructions for reassembly