Panasonic DMR-EZ28P, Service Manual

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7 Service Mode
7.1. Self-Diagnosis and Special Mode Setting
7.1.1. 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 internal of drive
has abnormal temperature.
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.
U61 The unit is carrying out its
recovery process. No display
U72 HDMI connection error
(communication error) This error is displayed when there are any
communication problems with the unit and the
equipments (TV, amplifier etc.) connected to
the unit by HDMI. (or when there is a problem
with the HDMI cable)
U72 display disappears when
error has been solved by Power
OFF/ON of connecting equipment
or by inserting/removing of HDMI
cable.
U73 HDMI connection error
(authentication error) When authentication error occurs while the
equipments (TV, amplifier etc.) are connected
by HDMI. (or when there is a problem with the
HDMI cable) No display
U73 display disappears when
error has been solved by Power
OFF/ON of connecting equipment
or by inserting/removing of HDMI
cable.
U76 Injustice disc error HDMI cannot output because you are
connected to a model that does not support
copyright protection. No display
U88 The unit is carrying out its
recovery process. No display
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.
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
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DMR-EZ28P / DMR-EZ28PC