Panasonic DMR-PWT520 Operating Instructions Manual page 90

Troubleshooting
Troubleshooting guide
START
Update of the software (firmware) is started.
You cannot operate the unit until the update is
complete. ( 82)
SW-DL
Software (firmware) is downloading.
Download will stop when the unit is turned on, or
the timer recording starts. (
UNSUPPORT
The media is not supported.
UPD /
("∑" stands for a number.)
The software (firmware) is being updated.
You cannot operate the unit until the update is
complete. ( 82)
U59
The unit is hot.
The unit switches to standby for safety reasons.
Wait for about 30 minutes until the message
disappears.
Do not block the cooling fan on the rear of the
unit.
90
VQT4C70
82)
U61
(When a disc is not inserted) A malfunction has
occurred. The unit is trying to restore to the
normal operation. Once the message disappears
you can use the unit again.
If it remains displayed, consult the dealer.
U76
HDMI cannot be output because it is connected to
a model that does not support copyright
protection.
U77
Due to the current disc not having authorised
copyright information, video output is not
performed.