Panasonic DMR-EH54DEG, Service Manual

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10 SELF-DIAGNOSIS AND SPECIAL MODE SETTING
10.1. SELF-DIAGNOSIS FUNCTIONS
Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display”
when any error has occurred.
U**, H** and F** are stored in memory and held.
You can check latest error code by transmitting [0] [1] of Remote Controller in Service Mode.
Automatic 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 Code Diagnosis contents Description Monitor Display Automatic FL display
U30 Remote control code
error Display appears when main unit and remote
controller codes are not matched. No display
“*” is remote controller code of the
main unit.
Display for 5 seconds.
U59 Abnormal inner
temperature detected Display appears when 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 speed for the first 5 minutes. For
the
remaining 25 minutes, fan motor is also
stopped.) The event is saved in memory as
well. No display
“U59 is displayed for 30 minutes.
U80 ST Microprocessor
Communication Error on
Timer Bus Displayed appears when ST Microprocessor
Communication Error on Timer Bus occurs. No display
“U80” is displayed till Power Key is
pressed.
U81 ST Microprocessor
Communication Error on
UART Displayed appears when ST Microprocessor
Communication Error on UART occurs. No display
“U81” is displayed till Power Key is
pressed.
U99 Hang-up Displayed when communication error has
occurred between Main microprocessor and
Timer microprocessor. No display
Displayed is left until the [POWER]
key is pressed.
H19 Inoperative fan motor When inoperative fan motor is detected
after powered on, the power is turned off
automatically.
The event is saved in memory. No display No display
F00 No error information Initial setting for error code in memory
(Error code Initialization is possible with
error code initialization and main unit
initialization.) No display No display
F58 Drive hardware error When drive unit error is detected, the event
is saved in memory. No display No display
F34 Initialization error when
main microprocessor is
started up for program
recording When initialization error is detected after
starting up main microprocessor for
program recording, the power is turned off
automatically.
The event is saved in memory. No display No display
UN-
SUPPORT Unsupported disc error *An unsupported format disc was played,
although the drive starts normally.
*The data format is not supported, although
the media type is supported.
*Exceptionally in case of the disc is dirty. “This disc is
incompatible.”
Display for 5 seconds.
NO READ Disc read error *A disc is flawed or dirty.
*A poor quality failed to start.
*The track information could not be read. “Cannot read.
Please check the
disc.”
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DMR-EH54DEG