6-4 Chapter 6: Hardware Service
Symptom Probable Cause Solution
LinesinLCD
Display
InternalLCDharnessloose Re‐seattheLCDharnessatthe
DynaKeyControllerBoardandLCD
ends.
BentpininexternalLCDcable CheckbothendsoftheLCDcable
forbentpins.Fixorreplacecable.
Nodisplay(Green
LED)
InternalLCDcableloose Re‐seattheLCDharnessatthe
DynaKeyControllerBoardandLCD
ends.
Internalbacklightharnessloose Ensurethatthebacklightharnessis
securelyfastenedtotheDynaKey
ControllerBoard
Nodisplay(orange
LED)
7452/7453/PC:Unitinstandby
mode(screenblank)
Returnunitfromstandbyas
requiredbyapplication.Ensured
KeylocknotinLposition.
PCorworkstationnotturned
on.
TurnPCorworkstationON
Cablesloose Ensureallcablesaresecurely
fastened