Furuno DSC-60 - Failures of LCD Display

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2. Countermeasures against Various Failures
2.3 Failures of LCD display
If CONTRAST is adjusted at its minimum, nothing is displayed on LCD. If nothing appears or anything
is missing on LCD display, turn off power and then, turn on again first.
YES
YES
YES
YES
NO
NO
NO
NO
LCD display failure
LCD recovers from the failure after
power is turned off and then on?
5 V is supplied to
PANEL board?
If failure often occurs, exchange
CONTROL/MODEM board.
Exchange CONTROL/MODEM
board. U16 is faulty.
Connections between
CONTROL/MODEM and PANEL
boards are OK?
Rectify.
Is the panel key operation possible?
If LCD does not recovers, exchange
CONTROL/MODEM board.
Exchange PANEL board.