Panasonic DMR-EH50GN, Service Manual, Page: 15 / 111

9 Self-Diagnosis and Special Mode
Setting
9.1 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.
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
UNSUPPORT
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.”
Display for 5 seconds.
HARD ERR Drive error The drive detected a hard error.
“
DVD drive