Panasonic Projector Pt Lz370u Operating Instructions

							Maintenance/replacement
ENGLISH - 101
Maintenance
Replacing the unit
▶■Air filter and electrostatic filter
The air filter should be replaced when cleaning is ineffective.
The replacement air filter and electrostatic filter (TXFKN01RYNZP) are sold separately. (Service component)
To purchase the product, consult your dealer.
Replace the air filter and electrostatic filter whenever replacing the lamp unit.
(An air filter and electrostatic filter are included with the replacement lamp unit ET
-LAA110.)
▶■Replacing the air filter and electrostatic filter
1) Remove the air filter cover
.
▶zUse a Phillips screwdriver to turn the air filter cover fixing screw until it turns freely
, and then remove the air 
filter cover .
Air filter cover f\
ixing screw
Air filter cover
2) Pull out the air filter unit.
▶zHold the grips on the air filter unit and pull out the air filter unit from the projector
.
Air filter unit
Grips (arrow engra\vve\f)
• After removing the air filter unit, remove any large build ups of dirt or dust in the air filter unit bay and the 
air intake port on the projector
.
3) Press the protrusions of air filter unit removed from the projector in the direction of 
the arrow and remove the air filter frame. 
						

							Maintenance/replacement 
102 - ENGLISH
Maintenance
4) Replace the air filter and electrostatic filter.
▶zReplace the air filter and electrostatic filter in the air filter unit with new ones.
•
 
Ensure that you attach the electrostatic filter and air filter in the correct order .
Tabs
Air filter frame
Air filter case Air filter (black)\o
Electrostatic filte\or 
(\fhite)
Protrusio\bs
Ribs
5) Assemble the air filter unit.
▶zFirst insert the electrostatic filter (white) into the center of the case ensuring that its edges do not ride 
on top of the ribs. 
And then insert the air filter (black) so that its four corners are within the case before 
attaching the air filter frame.
•
 
T
 ake care so that the air filter does not get caught between the air filter frame and the case.
•
 
Align the catches and protrusions on the air filter case and air filter frame when assembling the air 
filter unit. When attaching the air filter frame, ensure that the four catches are properly aligned with the 
protrusions on the air filter case and they have clicked into place.
6) Attach the air filter unit to the projector .
▶zAttach the air filter unit to the projector using the reverse of Step 
2) .
•  
Insert the air filter unit into the projector in the direction of the arrow engraved into the air filter frame () 
until it clicks into place.
7) Attach the air filter cover to the projector and use a Phillips screwdriver to tighten 
the air filter cover fixing screw (one screw).
▶■ Lamp unit
The lamp unit is a consumable component. Refer to “When to replace the lamp unit” ( page 103) for details 
about the lifespan.
Consult your dealer to purchase a replacement lamp unit (ET
-LAA110: Service component).
It is recommended that you request a qualified technician to replace the lamp unit. Consult your dealer .
Attention
 z Do not replace the lamp unit when it is hot. (W

ait at least one hour after use.)
The inside of the cover can become very hot, take care to avoid burn injuries. 
						

							Maintenance/replacement
ENGLISH - 103
Maintenance
▶■Notes on the replacement of the lamp unit
▶z
A Phillips screwdriver is necessary when replacing the lamp unit.
▶z
Since the luminous lamp is made of glass, it may burst if dropped or hit with a hard object.
Please handle with care.
▶zDo not disassemble or modify the lamp unit.
▶zWhen replacing the lamp unit, be sure to hold it by the handle.
▶zThe lamp may burst. Replace the lamp unit carefully so that the broken pieces of the lamp glass will not 
scatter
. When the projector is mounted on the ceiling, do not make the replacement directly under the lamp 
unit or put your face near it.
▶z The lamp contains mercury

. When disposing of used lamp units, contact your local authorities or dealer for 
correct methods of disposal.
Attention
 z Use only specified lamp units.
▶■ When to replace the lamp unit
The lamp unit is a consumable component. Since its brightness gradually decreases over time, it is necessary 
to replace it regularly. The estimated duration before replacement is 3 000 hours. However, this may be 
shortened depending on individual lamp characteristics, usage conditions, and the installation environment. 
Therefore, it is strongly recommended that a replacement lamp unit be kept.
As the risk of the lamp to cracking increases after 3 000 hours
*1 the lamp automatically turns off after 
approximately ten minutes.
On screen
REPLACE LAMP
Lamp indicator
Over 2 800*1 hours The message is displayed for 30 seconds. 
Pressing any button on the control panel 
or remote control within 30 seconds will 
clear the message.
Illuminates red even during the 
standby mode.
Over 3 000
*1 hours The message remains displayed until you 
press any button.
*1: The lamp usage time (converted value) is displayed in the [PROJECT
OR SETUP] 
→ [LAMP
 RUNTIME] ( page 68).
Note
 zT

o estimate the lamp replacement timing, check the lamp usage time (converted value) displayed in [LAMP  
RUNTIME] (
 page 68) of [PROJECTOR SETUP].
 z The usage period of 3 000 hours is a rough estimate and is not guaranteed.  
						

							Maintenance/replacement 
104 - ENGLISH
Maintenance
▶■Replacing the lamp unit
Attention
 z
Once a lamp unit has exceeded its lifespan of 3 000 hours (the lamp usage time (converted value)) the 
projector can only be used for ten minutes after turning on the power
. (
 page 103)
Perform Steps 
14) to 17) within ten minutes.
 z When the projector is mounted on the ceiling, do not put your face near the lamp unit.
 zDo not open the top cover except when replacing the lamp unit.
 zDo not switch on the power while the top cover is opened.
 zReplace the air filter and electrostatic filter whenever replacing the lamp unit.
 zSecurely attach the lamp unit and lamp unit cover

.
1) Follow the procedures described in  “ Switching off the projector” ( page 38), press 
the  side of the  switch to turn off the power
, 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 video cable connected to the connecting terminal.
Attention
 z If you open the top panel fully

, it may come into contact with connectors such as the video cable which may 
result in breakage of the video cable. Before opening the top panel, be sure to remove the connected video 
cables, etc.
3) Hold the protrusions at the front corner of the top cover of the projector and push up 
to open the top cover .
▶zWhen the projector is mounted on the ceiling, stand at the lens side of the projector when opening/closing 
the top cover
.
Protrusion
Top cover
Attention
 z Be careful not to open the top panel too far

. For what to do if the top panel comes off, see “When to replace the 
lamp unit” (
 page 103). 
						

							Maintenance/replacement
ENGLISH - 105
Maintenance
4) Use a Phillips screwdriver to turn the lamp cover fixing screw (one screw) until it 
turns freely, and then remove the lamp cover.
▶zSlowly remove the lamp cover from the projector .
Lamp cover fixing \
screw
Lamp cover
5) Use a Phillips screwdriver to turn the lamp unit fixing screws (two screws) until it 
turns freely .
6)
 
Hold the handle of the lamp unit and with the lamp unit lock held in the direction of 
the arrow

, carefully pull it out of the projector unit in a vertical motion.
A
Handle Lamp unit fixing s\cc\fews
Lamp unit lock
7) Insert the new lamp unit while making sure that the direction is correct and use a 
Phillips screwdriver to tighten the lamp unit screws (two screws).
▶z
Press down on the  A part firmly when inserting the lamp unit.
8) Attach the lamp cover and use a Phillips screwdriver to tighten the lamp cover fixing 
screw (one screw).
9)
 
Close the top cover of the projector
 .
▶zClose the top cover using the reverse of Step 
3) , and press the center of the top cover.
10) Reconnect the video cable disconnected in 2) to the connecting terminal.
1 1)  
Replace the air filter and electrostatic filter
 .
▶zRefer to “Replacing the air filter and electrostatic filter” ( page 101) for details about the procedure.
12) Insert the power plug into a power outlet, and press the  side of the  switch to turn on the power
. 
						

							Maintenance/replacement 
106 - ENGLISH
Maintenance
13) Press the power  button on the control panel or on the remote control to start 
video projection.
14)
 
Press the  button to display the menu screen and then press  ▲▼ to select 
[PROJECT

OR SETUP].
15)
 
Press the  button and then press  ▲▼ to select [LAMP

 RUNTIME].
16)
 
Hold the  button for approximately three seconds.
▶z The [LAMP  RUNTIME] confirmation message is displayed.
LAMP RUNTIME
 
LAMP RUNTIME RESET.
OK CANCEL
17) Press 
◀▶ to select [OK], and press the  button.
▶z
The lamp usage time (converted value) is reset to 0 and the power is turned of
f.  After a short while, the 
projector enters the standby mode.
▶■ Attaching the top cover
Hold the top cover as shown in the following figure, align the hinge with the support, 
and while pushing the arm in the direction of the arrow (towards the inner side of the 
projector), push it into the groove.
Arm
Support
HingeGroove 
						

							Troubleshooting
ENGLISH - 107
Maintenance
Troubleshooting
Review the following points. For details, see the corresponding pages.
ProblemPoints to be checked Page
Power does not turn 
on.
 z Is the power plug firmly inserted into an outlet?―
 zIs the  switch turned ?
38
 zIs the wall outlet supplying electricity?―
 zHave the circuit breakers tripped?―
 zIs the lamp indicator  or the temperature indicator  
illuminating or flashing? 97, 98
 z
Is the lamp unit securely installed?
104
No picture appears.
 z Is the connection to the picture (output) device correct?
32
 zIs the input selection setting correct?
42
 zIs the [BRIGHTNESS] adjustment setting at a minimum?
49
 zIs the external device that is connected to the projector working 
properly?―
 zIs the AV mute function in use?
41
 zIs the lens cover still attached to the lens?
37
The picture is fuzzy

.
 z Is the lens focus set correctly?
39
 zIs the projection distance appropriate?
26
 zIs the lens dirty?
17
 zIs the projector installed perpendicular to the screen?―
The color is pale or 
grayish. zIs [COLOR] adjusted correctly?
49
 zIs [TINT] adjusted correctly?
49
 zIs the device connected to the projector adjusted correctly?
32
Audio is not output.
 z Is the  terminal connected correctly?
23
 zIs the volume adjusted at a minimum?
43
 zIs the 

AV mute function used? 41
 zCheck [AUDIO IN SELECT] in [AUDIO SETTING].
72
The remote control 
does not operate.
 z Are the batteries depleted?―
 zIs the polarity of the batteries set correctly?
24
 zAre there any obstructions between the remote control and the 
projector

’s remote control signal receiver? 21
 z
Is the remote control being used beyond its ef

fective operation range? 21
 zAre other forms of light, such as fluorescent lights, af

fecting the 
projection? 21
 z
Is the [REMOTE CONTROLLER] setting in [CONTROL

 DEVICE 
SETUP] set to [DISABLE]? 77
 z
Is the ID number setting operation correct?
24 
						

							Troubleshooting 
108 - ENGLISH
Maintenance
ProblemPoints to be checked Page
The buttons on the 
control panel do not 
operate.
 z Is the [CONTROL

 PANEL] setting in [CONTROL DEVICE SETUP] set to 
[DISABLE]? 77
The picture does not 
display correctly.
 z Is [TV

-SYSTEM] set correctly? 55
 zIs [RGB/YCBCR] or [RGB/YPBPR] set correctly?
55
 zIs there a problem with the video tape or other picture sources?―
 zIs a signal which is not compatible with the projector input?
1 16
Picture from a 
computer does not 
appear.
 z Is the cable too long? (Use a cable that is 10 m (32'10") or shorter
.)―
 zIs the external video output of the laptop computer set correctly? 
–
▶
Example: 
 The external output settings may switch by pressing the Fn 
+ F3 keys simultaneously. Since the method varies depending on the 
computer type, refer to the user manual provided with your computer .62
Video from HDMI 
compatible device 
does not appear or it 
appears jumbled.
 z Is the HDMI cable connected securely?
34
 zT

urn off and on the power of the projector and the external device. 35
 zIs a signal which is not compatible with the projector input?
1

16
Audio from HDMI 
compatible device is 
not output.
 z Set the audio of the external device to the linear PCM.―
 zCheck [AUDIO IN SELECT] in [AUDIO SETTING].
72
 zIf audio is not output with the HDMI cable connection, use the  terminal. 23
Projection starts 
while the power 
button is not 
pressed.
 z Is [ON] set for the [PROJECT

OR SETUP] menu → [INITIAL START 
UP]? 67
 z
Did you turn the  switch to  in the middle of 
projection when you last used the projector?
–

▶
When [LAST
  MEMORY] is set for the [PROJECTOR SETUP] menu  → 
[INITIAL START UP] and the projector was turned off with the direct 
power off function (
 page 38) in the last use, projection starts when 
the  switch is turned to . 37
 z
Did you press the power  button immediately after turning the 
 switch to ?
–
▶
When [LAST

 MEMORY] is set for the [PROJECTOR SETUP] menu 
→  [INITIAL START UP] and the power 
 button is pressed 
immediately after the  switch is turned to , the 
projector may start projection when the  switch is 
turned to  on the next start-up.
–
▶
After turning the  switch to , do not press the 
power 
 button on the remote control or the control panel of the 
projector body while the power indicator  is 
illuminating or flashing red.
―
Attention
 z If problems persist even after checking the preceding points, consult your dealer
.  
						

							Technical information
ENGLISH - 109
Appendix
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 command
The following table lists the PJLink protocol commands that can be used to control the projector
.
Command Control detailsNotes
POWR Power supply control Parameters
0 = Standby
1 = Power on
POWR? Power supply status query Parameters
0 = Standby
2 = Cool-down in progress
1 = Power on
3 = Warm-up in progress
INPT Input selection Parameters
INPT? Input selection query 11 = COMPUTER
22 = S-VIDEO
31 = HDMI 121 = VIDEO
23 = COMPONENT
32 = HDMI 2
AVMT AV mute control Parameters
30 = AV mute function off
31 = AV mute function on
AVMT? AV mute status query
ERST? Error status query Parameters
1st byte: Indicates fan errors, range 0 - 2
2nd byte: Indicates lamp errors, range 0 - 2
3rd byte: Indicates temperature errors, range 0 - 2
4th byte: Fixed to 0
5th byte: Indicates a warning about a filter, range 0 - 2
6th byte: Indicates other errors, range 0 - 2
Definitions for each value from 0 to 2 are as follows
0 = No error detected   1 = Warning   2 = Error
LAMP? Lamp status query Parameters
1st digits (1 - 5 digits): Lamp cumulative operating time
2nd digit: 0 = Lamp Off, 1 = Lamp On
INST? Input selection list query Parameters are returned with the following values.
“11 21 22 23 31 32”
NAME? Projector name query Returns the name set in [NAME CHANGE] of [NETWORK].
INF1? Manufacturer name query Returns “Panasonic”.
INF2? Model name query Returns “LZ370”.
INF0? Other information query Returns information such as version number.
CLSS? Class information query Returns “1”. 
						

							Technical information
110 - ENGLISH
Appendix
▶■PJLink security authentication
The password used for PJLink is the same as that of the password set for the web browser control.
When using PJLink without security authentication, do not set a password for the web browser control.
▶z
For specifications regarding PJLink, refer to the Japan Business Machine and Information System 
Industries 

Association website.
URL http://pjlink.jbmia.or.jp/english/
Control commands via LAN
▶■ When W eb Control administrator rights password is set (Protect mode)
▶z
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.
You can obtain the IP address from the menu screen of the projector, and the port number from the Web 
Control page.
IP address Obtain from the main menu 
→ [NETWORK] 
→ [STATUS]
Port No. Obtain from Web Control [Detailed set up] 
→ [Command port set up] page
2) Check the response from the projector
.
Response data
Data section Blank Mode Blank Random number section Termination 
symbol
“NTCONTROL” (ASCII string) ‘ ’
0x20 ‘1’
0x31 ‘ ’
0x20 “zzzzzzzz”
(ASCII code hexadecimal  number) (CR)
0x0d
9 bytes 1 byte 1 byte 1 byte 8 bytes1 byte
Mode: 1 = Protect mode
3) Generate a 32-byte hash value from the following data using MD5 algorithm.
“xxxxxx:yyyyy:zzzzzzzz”
xxxxxx Administrator rights user name for Web Control (default user name is “admin1”).
yyyyy Password of above administrator rights user (default password is “panasonic”).
zzzzzzzz 8-byte random number obtained in Step 2)