Panasonic TH-98LQ70U Operating Instructions Manual page 77

Symptoms
Power automatically turns off unexpectedly.
There is no picture displayed or sound output
sometimes.
Whirring sounds can be heard from the display unit.
The RS-232C is uncontrollable
The LAN is uncontrollable
There is no picture displayed or sound output from
the [DIGITAL LINK] terminal.
Power indicator is blinking in red.
This LCD Display uses special image processing. Hence a slight time lag may occur between image and audio,
depending on the type of input signal. However, this is not a malfunction.
Check the settings of [No signal power off], [PC power
management], [DVI-D power management], [HDMI1 power
management], [HDMI2 power management], [HDMI3 Power
management], [HDMI4 power management] and [No activity
power off]. Any of them may be set to [On (Enable)]. (see
page 46)
When HDMI or DVI signals are input to the Display using a
selector or distributor, sound or images may not be output in
the normal fashion depending on the selector or distributor
used.
The symptoms may be improved by turning the power off
and on again, or by replacing the selector or distributor.
The display unit is fitted with a cooling fan to dissipate heat
generated during normal use. The whirring sound is caused
by rotation of the fan and is not a malfunction.
Check whether the connection has been made properly.
(see page 20)
To control RS-232C command (see page 21) with the
Display's SERIAL terminal, when [Network control] in
[Network settings] is set to [On], is [DIGITAL LINK mode] set
to the item other than [DIGITAL LINK(RS-232C)]?
(see page 53)
To control RS-232C command (see page 21) with the
DIGITAL LINK equipment's SERIAL terminal, is [Network
control] in [Network settings] set to [On] and [DIGITAL LINK
mode] set to [DIGITAL LINK(RS-232C)]?
(see page 53)
Check whether the connection has been made properly.
(see page 63)
When controlling with the Web Browser Control or the
command control, check whether [Network control] is set to
[On] (see page 53), [DIGITAL LINK mode] is set to [LAN],
[Auto(LAN)] or [DIGITAL LINK(LAN)].
When connecting to a device of AMX or Extron, set [AMX
D.D.] or [Extron XTP] according to the device to use.
(see page 53, 54)
See the [Signal quality] information of [DIGITAL LINK status]
to check the LAN cable status such as whether the LAN
cable is disconnected or the cable is not shielded.
(see page 54)
Check whether the connection has been made properly
between the video (output) equipment and twisted pair cable
transmitter and between the twisted pair cable transmitter
and this product.
(see page 64)
Check that [DIGITAL LINK mode] is not set to [LAN].
(see page 54)
There is possibility of malfunction. Please contact an
Authorized Service Centre.
Check
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