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...

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...

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...

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...

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...

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...

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...

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...

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...

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...