Panasonic Projector PT-DS20KU User Manual

							Maintenance/replacement
ENGLISH - 151
Maintenance
3) Attach the replacement filter unit optional accessory (Model No.: ET-EMF510) to the 
projector .
▶zThe air filter unit has no dif ference between top and bottom, but is two-sided. Match the protrusion position 
of the air filter unit with the grooves on the projector body.
▶z Hook the air filter unit frame at the exhaust port side to the two tabs of the back side of the projector
’

s air 
filter unit compartment and perform Step  2) in the reverse order to attach.
•
 
Confirm that the tabs of the air filter unit compartment of the projector body are hooked to the air filter unit 
frame.
Tabs on the project\ior body
Tabs on the project\ior body
Protrusion o\f the a\iir \filter unit
Protrusion o\f the a\iir \filter unit
Groove on the proje\ictor body
Groove on the proje\ictor body
4) Attach the air filter cover to the projector and use a Phillips screwdriver to tighten 
the air filter cover screw
.
▶zPerform Step  1) in the reverse order.
Attention
 z When switching on the projector

, make sure that the air filter unit is installed. If it is not properly attached, the 
projector will suck in dirt and dust causing a malfunction.
–
▶
If you use the projector without attaching the air filter unit, the message appears on the projection screen for 
approximately 30 seconds.
Note
 z The replacement cycle of the air filter unit varies greatly depending on the usage environment.
▶■ Lamp unit
The lamp unit is a consumable component. See “When to replace the lamp unit” ( page 152) for details about 
the replacement cycle.
Consult your dealer to purchase a replacement lamp unit (Model No.: ET -LAD510 (1 pc), ET-LAD510F (4 
pcs)) or a replacement lamp unit (for portrait mode) (Model No.: ET -LAD510P (1 pc), ET-LAD510PF (4 pcs)).
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.)
▶■ Checking the lamp unit to be replaced
Check the status of the lamp indicators ///.
 z
The lamp unit corresponding to the lamp indicator that is lit in red is required to be replaced.
▶■ 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 because its surface is pointed and its shape 
is protruded.
▶zThe lamp may be 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 P

anasonic takes no responsibility for any damage or malfunction of the product resulting from use of lamp units 
which are not manufactured by Panasonic. Use only specified lamp units.
 z For portrait setting, always use the replacement lamp unit (for portrait mode).
 zDo not use the replacement lamp unit (for portrait mode) and the ordinary lamp unit together
. 
						

							Maintenance/replacement 
152 - ENGLISH
Maintenance
 zWhen using the replacement lamp unit (for portrait mode), always use it with portrait setting.
Note
 z The model numbers of accessories and optional components are subject to change without notice.
▶■ 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 2 000 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 prepared. 
The unit can damage the 
projector if it has not been replaced after 2
  000 hours of usage. Thus, the lamp automatically turns off after 
approximately ten minutes.
If the cumulative operating time of all 4 lamp unit bulbs exceeds 2 000 hours, the power will be switch of f after 
about 10 minutes.
On-screen displayLamp indicator
Over 1 800 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.
Lights in red even during the standby 
mode.
Over 2 000 hours The message remains displayed until you 
press a button.
Note
 z T

o predict when to replace the lamp, check the lamp cumulative operating hours displayed in [LAMP1] - [LAMP4] 
(
 page 112) of [STATUS].
 z The usage period of 2 000 hours is a rough estimate and is not guaranteed.
 zThe guide for replacing the replacement lamp unit (for portrait mode) is 500 hours. 
The on-screen message for 
replacing the lamp appears after 300 hours.
▶■ Replacing the lamp unit
Attention
 z
When the projector is mounted on the ceiling, do not perform tasks while your face is near the lamp unit.
 zDo not remove or loosen the screws other than specified ones when replacing the lamp.
 zUse the same type of lamp unit for all four lamps.
1) Set the  switch to  and disconnect the power plug from the 
power outlet.
▶zW ait at least one hour and and 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) counterclockwise until 
it turns freely
, and then open the lamp unit cover slowly in the direction of the arrow described in the 
following figure.
•
▶
Opening the lamp unit cover quickly may result in damage to the cover .
•

▶
I
 f you loosen the lamp unit cover fixing screw with the projector installed upward in the vertical direction, 
the lamp unit cover may open on its weight and drop off the lamp unit.
(ii)
 
Hold the lamp unit cover securely and slide it in the direction of the arrow , and then pull it out backward 
to remove.
Lamp unit cover 
fixing screw
Lamp unit cover
REPLACE LAMP 
						

							Maintenance/replacement
ENGLISH - 153
Maintenance
Attention
 zBe careful to hold the lamp unit cover and to loosen the lamp unit 
cover fixing screws with the projector installed upward in the vertical 
d

irection since the lamp unit cover may open and the lamp case may 
drop off on its weight.
–
▶
This can cause severe injury or accidents.
3) Pull out the lamp case.
▶zUse a Phillips screwdriver to turn the lamp case fixing screws of the lamp unit to be replaced (two screws 
each) counterclockwise until they turn freely
, and then hold the lamp case handles to be replaced and pull 
out backward.
▶z Do not remove the black screws other than the lamp case fixing screws.
▶zWhen you loosen the lamp case fixing screws with the projector installed upward in the vertical direction, 
the lamp case may drop of

f on its weight. Be sure to hold the lamp case handle when you loosen the lamp 
case fixing screws.
▶z When removing the lamp case, make sure that the projector is stable and remove it in a safe place where 
the lamp case is dropped of

f.
Lamp case handlesLamp case LLamp case R
Lamp case fixing s\wcrews
/DPSXQLW
/DPSXQLW
/DPSFDVH5
/DPSFDVH/ /DPSXQLW
/DPSXQLW
4) Remove the lamp unit.
▶z
Use a Phillips screwdriver to turn the lamp unit fixing screws (two screws) counterclockwise until they turn 
freely
, and then remove the lamp unit from the lamp case.
▶zHold the handles of the lamp unit and remove it.
▶zDo not remove the screws other than the lamp unit fixing screws.
Lamp unit fixing s\dcrews
Lamp unit
Lamp case hand\fe
Lamp unit 
hand\fes
Guide pins and guide\d ho\fes
Lamp unit
5) Attach the lamp unit.
(i) Gently push the new lamp unit into the lamp case. Install the new lamp unit carefully so that the guide 
pins on the lamp case are inserted into the guide holes on the lamp unit.
•
▶
If the lamp unit is not installed properly
 , remove it and then gently install it again. Pushing it in forcibly 
or exerting excessive force may break the connector.
(ii)
 
Use a Phillips screwdriver to firmly tighten the lamp unit fixing screws (two screws each).
▶zMake sure to attach the lamp unit properly

. 
						

							Maintenance/replacement 
154 - ENGLISH
Maintenance
6) Attach the lamp case.
▶zGently push in the lamp case along the grooves for the lamp case attachment guide on the projector
, and 
then firmly tighten the lamp case fixing screws (two screws).
▶z When you secure the lamp case with the projector installed upward in the vertical direction, the lamp case 
may drop of

f on its weight. Be sure to hold the lamp case handle when you tighten the lamp case fixing 
screws.
▶z If the lamp case is not installed properly

, remove it and then gently install it again. Pushing it in forcibly or 
exerting excessive force may break the connector.
▶z Make sure to attach the lamp case properly

.
Grooves of the gui\pde to attach the l\pamp case
Guides to attach t\phe lamp case
Lamp case handlesLamp case LLamp case R
Lamp case fixing s\wcrews
7) Attach the lamp unit cover.
(i) Align the lamp unit cover to the marks of (a) and (b) ( and ) to attach as shown by the arrow.
(ii)
 
Close the lamp unit cover in the direction of the arrow and use a Phillips screw driver to firmly tighten 
the lamp unit cover fixing screw (one screw).
▶z Make sure to attach the lamp unit cover properly

.
D
E
L LL
Note
 zWhen you place the new lamp unit, the projector resets the total usage time of the lamp unit automatically
.
 zWhen the lamp case is removed or attached, it will be caught because of the fall-prevention stopper
. 

This, 
however, is not a problem. 
						

							Troubleshooting
ENGLISH - 155
Maintenance
Troubleshooting
Review the following points. For details, see the corresponding pages.
ProblemsPoints to be checked Page
Power does not turn 
on.
 z Is the power plug firmly inserted into the outlet?
―
 zIs the  switch turned ?
53
 zIs the wall outlet supplying electricity?
―
 zHave the circuit breakers tripped?
―
 zIs the temperature indicator  or the lamp indicators 
/// lit or flashing? 146, 147
 z
Is the lamp unit cover securely installed?
152
 zAre you using the correct power supply voltage (AC 200 - 240 V)?
179
No image appears.
 z Are connections to external devices correctly performed?
46
 zIs the input selection setting correct?
60
 zIs the [BRIGHTNESS] adjustment setting at a minimum?
68
 zIs the external device that is connected to the projector working 
properly? ―
 z
Is the shutter function in use?
60
 zIf the power indicator  is flashing in red, consult 
your dealer. —
 z
Is the lens cover still attached to the lens?
52
The picture is fuzzy

.
 zIs the lens focus set correctly?
54
 zIs the projection distance appropriate?
31
 zIs the lens dirty?
18
 zIs the projector installed perpendicular to the screen?
―
The color is pale or 
grayish.
 z Is the [COLOR] adjusted correctly?
68
 zIs the [TINT] adjusted correctly?
68
 zIs the external device connected to the projector adjusted correctly?
46
 zIs the RGB cable damaged?
―
The remote control 
does not respond.
 z Are the batteries depleted?
―
 zIs the polarity of the batteries set correctly?
29
 zAre there any obstructions between the remote control and the 
projector

’s remote control signal receiver? 25
 z
Is the remote control being used beyond its ef

fective operation range? 25
 zAre other forms of light, such as fluorescent light, af

fecting the 
projection? 25
 z
Is the [REMOTE CONTROL] setting in [CONTROL

 DEVICE SETUP] set 
to [DISABLE]? 125
 z
Is the  terminal used for contact control?
171
 zIs the ID number setting operation correct?
29 
						

							Troubleshooting 
156 - ENGLISH
Maintenance
ProblemsPoints to be checked Page
The menu screen 
does not appear.
 z Is the on-screen display function turned of

f (hidden)?27, 60
The buttons on the 
control panel do not 
operate.
 z Is the [CONTROL

 PANEL] setting in [CONTROL DEVICE SETUP] set to 
[DISABLE]? 125
 z
Is the  terminal used for contact control?
171
The image does not 
display correctly

.
 zIs the [SYSTEM SELECT

OR] selection set correctly? 72
 zIs there a problem with the video tape or other image sources?
―
 zIs a signal which is not compatible with the projector being input?
174
Image from a 
computer does not 
appear

.
 z Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or 
shorter

.) ―
 z
Is the external video output of the laptop computer set correctly?
–

▶
Example: 
 The external output settings may be switched by pressing 
“Fn” + “F3” or “Fn” + “F10” keys simultaneously. Since the method 
varies depending on the computer type, refer to the user manual 
provided with your computer. ―
Image from a 
computer’s DVI-D 
output does not 
appear.
 z Is the [DVI-D IN] setting set to [EDID3]/[EDID2:PC]?
96
 zT

he graphics accelerator driver of the computer may need to be updated 
to the latest version. ―
 z
The computer may need to be restarted after performing [DVI-D IN] 
settings. 96
V

ideo from HDMI 
compatible device 
does not appear or it 
appears jumbled.
 z Is the HDMI cable connected securely?
46
 zT

urn the power of the projector and the external device off and on. ―
 zIs an unsupported signal being used?
174
Cannot control the 
projector with 

Art-
Net.
 z Is the [Art-Net] setting [ON]?
128
 zAre the [POR

T ADDRESS] and [START ADDRESS] settings correct? 128
3D function is not 
working.
 z Is the [3D INPUT

 FORMAT] setting of [3D SETTINGS] correct? 87
 zCheck the 3D eyewear settings.
―
 zIs a 3D signal which is supported by the projector being input?
176
Left and right 
images are reversed 
(not showing 
properly).
 z Are the devices synchronized? Check the 3D eyewear settings.
―
 zChange the [LEFT/RIGHT

 SWAP] setting of [3D SETTINGS]. 87
Image in the 3D 
eyewear flickers.
 z Are you within the reception range?
―
3D eyewear is not 
functioning.
 z Are batteries of the 3D eyewear drained? If you use the rechargeable 
3D eyewear

, charge it. If you use the battery-powered 3D eyewear, 
replace the battery. ―
 z
Is the [3D SETTINGS] setting correct?
85
Attention
 z If problems persist even after checking the preceding points, consult your dealer
. 
						

							Self-diagnosis display
ENGLISH - 157
Maintenance
Self-diagnosis display
A self-diagnosis display which automatically displays errors and warnings, and their details, is placed on the side 
of the projector. (
 page 27)
In the following cases, a self-diagnosis display is flipped vertically .
 zW

hen [COOLING CONDITION] (
 page 103)  is set to [AUTO], and the automatically recognized result displayed 
in [COOLING CONDITION] on the  [STATUS] screen is [AUTO - CEILING]
 zWhen [COOLING CONDITION] ( page 103) is set to [CEILING SETTING]
Self-diagnosis 
display Details
Measure
U04 Air filter clog
 z Clean the air filter unit.
U1

1 Intake temperature warning
 zThe ambient temperature is too high.
U12 Optical module temperature warning
U13
Lamp surrounding temperature warning
U14 Low temperature warning z The ambient temperature is too low
.
U21 Intake temperature error
 z The ambient temperature is too high.
U22 Optical module temperature error
U23 Lamp surrounding temperature error
U24 Low temperature error
 z The ambient temperature is too low

.
U30 Installation angle error
 z
Do not use the projector tilted at an angle that 
exceeds ±15° from the horizontal plane.
U31 Portrait setting angle error
 z Install the connecting terminals facing down.
U32 Lamp unit usage error
 z
For portrait setting, use the replacement lamp unit (for 
portrait mode).
U33 Lamp unit mixed usage error
 z
Dif

ferent types of lamp units have been installed. Use 
only the same type of lamp unit. The replacement 
lamp unit (for portrait mode) is marked on the right 
side of the lamp unit Model No. to make it easy to 
differentiate from ordinary replacement lamp units.
P
Mark
U41Lamp 1 cumulative operation time error
 z It’s time to replace the lamp unit. Replace the lamp 
unit.
U42Lamp 2 cumulative operation time error
U43Lamp 3 cumulative operation time error
U44Lamp 4 cumulative operation time error
U51 Lamp 1 error
 z
Failed to light the lamp. Switch the power on again 
after letting the lamp cool down. If the lamp still 
doesn’t light up, consult your dealer

.
U52 Lamp 2 error
U53 Lamp 3 error
U54 Lamp 4 error
U61
The cumulative operation time of 
Lamp 1 has exceeded 2 000 hours
*1
 z
The lamp unit’
s replacement period has been 
exceeded. Replace the unit immediately.
U62
The cumulative operation time of 
Lamp 2 has exceeded 2 000 hours*1
U63The cumulative operation time of 
Lamp 3 has exceeded 2 000 hours*1
U64The cumulative operation time of 
Lamp 4 has exceeded 2 000 hours*1 
						

							Self-diagnosis display 
158 - ENGLISH
Maintenance
Self-diagnosis display Details
Measure
U71 Lamp 1 not installed
 z Attach the lamp unit.
U72 Lamp 2 not installed
U73 Lamp 3 not installed
U74 Lamp 4 not installed
U76 Air filter unit not installed
 z
Attach the air filter unit.
U78 Clog sensor error
 z Clean the air filter unit or replace it. ( page 148)
U81 L
ow AC voltage warning (below 170 V)
 z The power voltage input is low

. Dedicate an outlet 
for the electrical wiring for the projector’s power 
consumption.
H01
Battery replacement for the internal clock z Battery replacement is required. Consult your dealer
.
H11 Intake temperature sensor not present
 z When the display does not clear even after switching 
the main power on and of

f, consult your dealer.
H12
Optical module temperature sensor 
not present
H13 Lamp surrounding temperature sensor 
not present
H18 Clog sensor not present F00 Liquid cooling pump R warning
F01 Liquid cooling pump G warning
F02 Liquid cooling pump B warningF11 Shutter error
F12 Dynamic iris error
F13 Air filter unit error
F15 Luminance sensor error
F16 Angle sensor error
F41 Lamp 1 memory error
 z The lamp unit is broken. Consult your dealer

.
F42 Lamp 2 memory error
F43 Lamp 3 memory error
F44 Lamp 4 memory error 
						

							Self-diagnosis display
ENGLISH - 159
Maintenance
Self-diagnosis display Details
Measure
F50 Exhaust fan 1 warning
 z When the display does not clear even after switching 
the main power on and of

f, consult your dealer.
F51 Exhaust fan 2 warning
F52 Exhaust fan 3 warning
F53 Exhaust fan 4 warning
F54 Intake fan 1 warning
F55 Intake fan 2 warning
F56 Lamp 1 fan warning
F57 Lamp 2 fan warning
F58 Lamp 3 fan warning
F59 Lamp 4 fan warning
F61 Lamp 1 power transmission error
F62 Lamp 2 power transmission error
F63 Lamp 3 power transmission error
F64 Lamp 4 power transmission error
F70 Lamp 1 power supply fan warning
F71 Lamp 2 power supply fan warning
F72 Power supply fan warning
F73 Signal fan warning
F74 Lamp 1/2 relay fan warning
F75 Lamp 3/4 relay fan warning
F76 Color prism fan 1 warning
F77 Color prism fan 2 warning
F78 Color prism fan 3 warning 
						

							Self-diagnosis display 
160 - ENGLISH
Maintenance
Self-diagnosis display Details
Measure
F91 FPGA 1/2 configuration error
 z When the display does not clear even after switching 
the main power on and of

f, consult your dealer.
F92 FPGA 3 configuration error
F96 Lens mounter error
F97
Geometric adjustment board 
communication error
F98 Geometric distortion correction board 
communication error
F99 Internal error
FE0 Internal error
FE1 Exhaust fan 1 error
FE2 Exhaust fan 2 error
FE3 Exhaust fan 3 error
FE4 Exhaust fan 4 error
FE5 Intake fan 1 error
FE6 Intake fan 2 error
FE7 Lamp 1 fan error
FE8 Lamp 2 fan error
FE9 Lamp 3 fan error FF0 Lamp 4 fan error
FF1 Lamp 1/2 power supply fan error
FF2 Lamp 3/4 power supply fan error
FF3 Power supply fan error
FF4 Signal fan error
FF5 Lamp 1/2 relay fan error
FF6 Lamp 3/4 relay fan error
FF7 Color prism fan 1 error
FF8 Color prism fan 2 error
FF9 Color prism fan 3 error FJ0 Liquid cooling pump R error
FJ1 Liquid cooling pump G error
FJ2 Liquid cooling pump B error
*1: 500 hours when the optional accessory replacement lamp unit (for portrait mode) (Model No.: ET-LAD510P (1 pc), ET-LAD510PF  (4 pcs)) is used.
Note
 zThe self-diagnosis display and the details of the malfunction may vary
.