Self-Diagnosis Functions - Panasonic DMR-E53EG Service Manual

8.1 Self-Diagnosis Functions

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Self-Diagnosis Function provides information for errors to service personnel by "Self-Diagnosis
Display" when any error has occurred.
U14, H** and F** are stored in memory and held.
Display on FL will be cancelled when the power is turned off or AC input is turned off during self-
diagnosis display is ON.
Error Diagnosis contents
Code
U12 Remote control code
error
U14 Abnormal inner
temperature detected
U99 Hang-up
Description
Display appears when No display
main unit and remote
controller codes are
not matched.
Display appears when No display
the drive temperature
exceeds 70°C.
The power is turned
off forcibly.
For 30 minutes after
this, all key entries are
disabled. (Fan motor
operates at the highest
speedfor the first 5
minutes. For the
remaining 25 minutes,
fan motor is also
stopped.) The event is
saved in memory as
well.
Displayed when No display
communication error
has occurred between
Main microprocessor
and Timer
microprocessor.
Monitor Display
"*" is remote controller code of the main
unit.
Display for 5 seconds.
"U14" is displayed for 30 minutes.
Displayed is left until the [POWER] key
is pressed.
FL display