Panasonic DMR-BCT835 Operating Instructions Manual page 115

Troubleshooting
Troubleshooting guide
UPD □/□
("□" stands for a number.)
The software (firmware) is being updated.
You cannot operate the unit until the update is
complete. (O 101)
U59
The unit is hot.
The unit switches to standby for safety
reasons. Wait for about 30 minutes until the
message disappears.
Install or place this unit with good ventilation.
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.
U88
(When a disc is inserted) There was something
unusual detected with the disc or the unit. 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.
U99
The unit fails to operate properly. Press [i/I] on
the main unit to switch the unit to standby
mode. Now press [i/I] on the main unit again to
turn the unit on.
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VQT4W71
X HOLD
The HOLD function is activated. (o 105)
Hm or Fm
("□" stands for a number.)
There is something unusual. (The service
number displayed after H and F depends on
the unit's condition.)
Reset the unit as follows:
1 Disconnect the plug from the household
mains socket, wait a few seconds, then
reconnect it.
2 Press [i/I] to turn the power on. (The unit
may be fixed.)
Request service from the dealer. Inform the
dealer of the service number when requesting
service.