Panasonic DLP Projector PT-DW740E PT-DW740EL PT-DX810E PT-DX810EL Operating Instructions

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Chapter 5 Maintenance — Lamp/Temperature/Filter indicators
Temperature indicator 
Indicator status Lighting in red Flashing in red
(1 time) Flashing in red
(3 times)
Status Warm-up status Internal temperature is high 
(warning)Internal temperature is high 
(standby warning)
The cooling fan has stopped.
Cause r
f Did you turn on the 
power when the room 
temperature was about 
0°C (32°F)? r
f Is the air intake/exhaust port blocked?
r
f Is the room temperature high?
r
f Is the filter...

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Chapter 5 Maintenance — Maintenance/replacement
Maintenance/replacement
Before maintaining/replacing the unit
r
f Make sure to turn off the power before maintaining or replacing the unit. (
x pages 41, 43)
r
f When switching off the projector, make sure to follow the procedures in “Switching off the projector” (
x page 43).
Maintenance
Outer case
Wipe off dirt and dust with a soft, dry cloth.
r
f If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry...

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Chapter 5 Maintenance — Maintenance/replacement
2) Dry the air filter unit.
r
f Let the unit naturally dry off in a well-ventilated place where 
there is little dust and the unit is protected from direct sunlight.
r
f Do not dry using drying devices such as dryers.
r
f When the air filter unit is dry, proceed to the procedure 
described in “Attaching the air filter unit” (
x page 113).
Attaching the air filter unit
1) Attach the air filter unit to the projector.
r
f The top and bottom of...

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Chapter 5 Maintenance — Maintenance/replacement
Note
r
f The replacement cycle of the air filter unit varies greatly depending on the usage environment.
Lamp unit
The lamp unit is a consumable component. Check the lamp usage time in [PROJECT
OR SETUP]
 [STATUS] (
x page 81) in the menu and 
change the lamp periodically.
It is recommended that you request a qualified technician to replace the lamp unit. Consult your dealer .
Consult your dealer to purchase a replacement lamp unit (Model No.:...

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Chapter 5 Maintenance — Maintenance/replacement
1) Follow the procedures described in “Switching 
off the projector” ( x page 43) to set the 
 switch to , disconnect 
the power plug from the power outlet, and wait 
at least one hour, and then check if the lamp 
unit has cooled down.
2) Remove the lamp unit cover.
i)  Use a Phillips screwdriver to loosen the lamp unit cover fixing 
screw (one screw) until it turns freely, and then open the lamp 
unit cover in the direction of the arrow.
ii)...

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Chapter 5 Maintenance — Troubleshooting
Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems Points to be checked Page
Power does not turn on. r
f Is the power plug firmly inserted into the outlet?
―
r
f Is the  switch turned ?
43
r
f Is the wall outlet supplying electricity?
―
r
f Have the circuit breakers tripped?
―
r
f Is the temperature indicator  or the lamp indicator / lit or flashing?
11 0 ,  111
r
f Is the lamp unit cover securely...

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Chapter 6 Appendix
This chapter describes specifications and after-sales service for the projector.  

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Chapter 6 Appendix — Technical information
Technical information
PJLink protocol
The network function of this projector supports the PJLink class 1, and \
the PJLink protocol can be used to perform projector setting and 
projector status query operations from a computer.
Control commands
The following table lists the PJLink protocol commands that can be used \
to control the projector.
Command Control details Notes
POWR Power supply control Parameters
0 = Standby
1 = Power on
POWR? Power...

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Chapter 6 Appendix — Technical information
Control commands via LAN
When WEB control administrator rights password is set (Protect mode)
Connection method
1) Obtain the IP address and port number (Initial 
set value = 1024) of the projector and request 
for a connection to the projector.
r
f You can obtain both the IP address and the port number from 
the menu screen of the projector.
IP address
Obtain from the main menu 
→ [NETWORK]
 → [NETWORK STATUS].
Port number Obtain from the main...

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Chapter 6 Appendix — Technical information
r
r Error response
Error message
Termination symbol
“ERR1” Undefined control command
(CR)
0x0d
“ERR2”
Out of parameter range
“ERR3” Busy state or no-acceptable period
“ERR4” Timeout or no-acceptable period
“ERR5” Wrong data length
“ERRA” Password mismatch
4 bytes 1 byte
When WEB control administrator rights password is not set (Non-protect \
mode)
Connection method
1) Obtain the IP address and port number (Initial 
set value = 1024) of the...