Panasonic DLP Projector PT-DZ21K2 PT-DS20K2 PT-DW17K2 PT-DZ16K2 Operating Instructions

Chapter 5 Maintenance — Maintenance/replacement
ENGLISH - 181
Maintenance/replacement
Before performing maintenance/replacement
 fMake sure to turn of f the power before maintaining or replacing the unit. ( x pages 58, 64)
 fWhen switching of

f the projector, make sure to follow the procedures in “Switching off the projector” 
(x
  page   64).
Maintenance
Outer case
Wipe off dirt and dust with a soft, dry cloth.
 fIf the dirt is persistent, soak the cloth with water and wring it thorou\
ghly before...

Chapter 5 Maintenance — Maintenance/replacement
182 - ENGLISH
 fAfter pulling out the air filter unit, remove large foreign objects and dust from the air filter unit compartment 
and the air intake port of the projector body if there are any
. (Fig. 3)
Cleaning the air filter unit
Remove the air filter unit beforehand with the previously described procedure of “Removing the air filter unit”.
Fig. 1 Fig. 2
1) Wash the air filter unit. (Fig. 1)
i)  
Soak the air filter unit in cold or warm water and then...

Chapter 5 Maintenance — Maintenance/replacement
ENGLISH - 183
Note
 fMake sure that the air filter unit is properly attached before using the projector . If it is not properly attached, the projector will suck in dirt and 
dust causing a malfunction.
 f If you use the projector without attaching the air filter unit, the filter indicator  blinks in red and the message appears on the 
projected image for approximately 30 seconds.
 f Replace the air filter unit with the new optional Replacement filter unit...

Chapter 5 Maintenance — Maintenance/replacement
184 - ENGLISH
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 the lamp unit regularly. The estimated duration before replacement is 3
  000 hours, but the lamp may go 
off before reaching 3
  000 hours, depending on the characteristics of the individual lamp, usage conditions, and the 
installation environment. It is recommended that the replacement lamp...

Chapter 5 Maintenance — Maintenance/replacement
ENGLISH - 185
Removing the lamp unit
WARNING
When replacing the lamp unit with the projector installed upward in the vertical direction, make sure to support the lamp unit 
cover with your hand while loosening the lamp unit cover fixing screw.
The lamp unit cover may open on its weight and may drop off, causing a serious accident or injury.
Lamp unit cover
Lamp unit cover fixing 
screw
Lamp unit fixing screw
Lamp unit Lamp case handle
Lamp unit handle
Guide...

Chapter 5 Maintenance — Maintenance/replacement
186 - ENGLISH
 fIf 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 may drop of
f. Support the lamp unit cover with your hand when 
you loosen the lamp unit cover fixing screw.
ii)
 
Hold the lamp unit cover securely and slide it in the direction of the arrow , and then remove it by pulling it out 
backwards.
 f Since the fan and other components are...

Chapter 5 Maintenance — Maintenance/replacement
ENGLISH - 187
3) Attach the lamp case. (Fig. 1)
 fSlowly insert the lamp case into the projector along the grooves for the\
 guide to attach the lamp case, then 
firmly tighten the lamp case fixing screws (x2).
 fIf the projector is installed upward in the vertical direction, the lamp\
 case may drop of

f on its weight when 
fixing it. Take extra care by holding the lamp case handle when tightening the lamp case fixing screws.
 f If you are having...

Chapter 5 Maintenance — Troubleshooting
188 - ENGLISH
Troubleshooting
Review the following points. For details, see the corresponding pages.
ProblemsPoints to be checked Page
Power does not turn on.
 f Is the power plug firmly inserted into the outlet? ―
 fIs the  switch set to ? 64
 fIs the wall outlet supplying electricity? ―
 fHave the circuit breakers tripped? ―
 fAre the lamp indicators /// or the 
temperature indicator  lit or blinking? 179
 f
Is the lamp unit and the lamp unit cover attached...

Chapter 5 Maintenance — Troubleshooting
ENGLISH - 189
ProblemsPoints to be checked Page
Lens shift cannot be 
adjusted.
 f Perform [LENS CALIBRA

TION]. 140
 fIs the fixed-focus lens (Model No.: ET-

D75LE50) attached?―
Cannot control the 
projector with Art-Net.
 f Are the connections between the twisted-pair-cable transmitter and an external 
device, and between the twisted-pair-cable transmitter and projector correctly done? ―
 f
Is [Art-Net SETUP] set to other than [OFF]? 157
 fAre [NET], [SUB NET],...

Chapter 5 Maintenance — Self-diagnosis display
190 - ENGLISH
Self-diagnosis display
There is a self-diagnosis display on the side of the projector. Self-diagnosis display will automatically display the 
value of the input supply voltage, or details of errors or warnings when they occur. (x
  page   28)
The following list shows the alphanumeric symbol that is displayed when \
an error or a warning has occurred and 
its details. The input supply voltage is displayed only with the numeric value....