6 PROBLEM SOLVINGSpot ChecksThis chapter explains how to check for problems and solve them. It isgood practice to carry out regular checks of your MSH equipment andit could allow you spot a potential problem before it occurs.Check the following:n LEDs — Press the Lamp Test button located on the MSH display panel.All yellow LEDs should light continuously and all bi-color LEDs shouldflash their two colors alternately.n Cabling — Check that all external cabling connections are secure andthat no cables are pulled taut.n Modules — Check that all modules are secured in position and thattheir ejectors are locked. All modules should be flush in the chassiswith each other.If individual LEDs do not respond to the Lamp Test, the LEDs are faulty.If, however, all LEDs on a single module fail to light, and all otherchecks are satisfactory, there is a fault with the module or the MSHchassis. Refer to “Identifying Fault Conditions with the LEDs” later in thischapter.
