Panasonic DMR-EH55EC Service Manual page 23

Error Diagnosis contents
Code
HDD Power on Stand-by
NG setting error
8.1.2. Special Modes Setting
Item
Mode name
TEST Mode *All the main unit's parameters
(include tuner) are initialized.
Rating password The audiovisual level setting
password is initialized to "Level
8".
Service Mode Setting every kind of modes for
servicing.
*Details are described in "8.1.3.
Service Mode at a glance".
Description
[HDD NG] is displayed when
power on Stand-by setting of
HDD is NG or when HDD which
power on Stand-by is not set to
is used.
Please try to replace HDD with
junine HDD as service parts.
Description
Monitor Automatic FL display
Display
No display
FL display Key operation
Front Key
Press [STOP], [CH UP]
and [OPEN/CLOSE] keys
simultaneously for five
seconds when power is
off.
Open the tray, and press
[REC] and [PLAY]
simultaneously for 5
seconds.
When the power is off,
press [CH UP], [OPEN/
CLOSE] and [REC] keys
simultaneously for 5
seconds.