Panasonic DLP Projector PT-DZ21KU PT-DS20KU PT-DW17KU Operating Instructions

							Troubleshooting
ENGLISH - 151
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 ?
51
 zIs the wall outlet supplying electricity?
―
 zHave the circuit breakers tripped?
―
 zIs the temperature indicator  or the lamp indicators 
/// lit or flashing? 142, 143
 z
Is the lamp unit cover securely installed?
148
 zAre you using the correct power supply voltage (AC 200 - 240 V)?
172
No image appears.
 z Are connections to external devices correctly performed?
44
 zIs the input selection setting correct?
58
 zIs the [BRIGHTNESS] adjustment setting at a minimum?
66
 zIs the external device that is connected to the projector working 
properly? ―
 z
Is the shutter function in use?
58
 zIf the power indicator  is flashing in red, consult 
your dealer. —
 z
Is the lens cover still attached to the lens?
50
The picture is fuzzy

.
 zIs the lens focus set correctly?
52
 zIs the projection distance appropriate?
29
 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?
66
 zIs the [TINT] adjusted correctly?
66
 zIs the external device connected to the projector adjusted correctly?
44
 zIs the RGB cable damaged?
―
The remote control 
does not respond.
 z Are the batteries depleted?
―
 zIs the polarity of the batteries set correctly?
27
 zAre there any obstructions between the remote control and the 
projector

’s remote control signal receiver? 23
 z
Is the remote control being used beyond its ef

fective operation range? 23
 zAre other forms of light, such as fluorescent light, af

fecting the 
projection? 23
 z
Is the [REMOTE CONTROL] setting in [CONTROL

 DEVICE SETUP] set 
to [DISABLE]? 122
 z
Is the  terminal used for contact control?
164
 zIs the ID number setting operation correct?
27 
						

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

f (hidden)?25, 58
The buttons on the 
control panel do not 
operate.
 z Is the [CONTROL

 PANEL] setting in [CONTROL DEVICE SETUP] set to 
[DISABLE]? 122
 z
Is the  terminal used for contact control?
164
The image does not 
display correctly

.
 zIs the [SYSTEM SELECT

OR] selection set correctly? 70
 zIs there a problem with the video tape or other image sources?
―
 zIs a signal which is not compatible with the projector being input?
167
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]?
92
 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. 92
V

ideo from HDMI 
compatible device 
does not appear or it 
appears jumbled.
 z Is the HDMI cable connected securely?
44
 zT

urn the power of the projector and the external device on and of f.―
 zIs an unsupported signal being used?
167
Attention
 z If problems persist even after checking the preceding points, consult your dealer
. 
						

							Self-diagnosis display
ENGLISH - 153
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 25)
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.
U41
Lamp 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 
a

fter 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
 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
U63 The cumulative operation time of 
Lamp 3 has exceeded 2 000 hours
U64 The cumulative operation time of 
Lamp 4 has exceeded 2 000 hours
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 144)
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 
						

							Self-diagnosis display 
154 - ENGLISH
Maintenance
Self-diagnosis  display Details
Measure
F00 Liquid cooling pump R warning
 z When the display does not clear even after switching 
the main power on and of

f, consult your dealer.
F01 Liquid cooling pump G warning
F02 Liquid cooling pump B warning
F11 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
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
F91 FPGA 1/2 configuration error
F92 FPGA 3 configuration error
F96 Lens mounter error
F97
Geometric adjustment board 
communication error 
						

							Self-diagnosis display
ENGLISH - 155
Maintenance
Self-diagnosis  display Details
Measure
F98 Geometric distortion correction board 
communication error
 z
When the display does not clear even after switching 
the main power on and of

f, consult your dealer.
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
Note
 z The self-diagnosis display and the details of the malfunction may vary
. 
						

							Technical information
156 - ENGLISH
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 commands
The following table lists the PJLink protocol commands that can be used to control the projector
.
CommandControl detailsRemark
POWR Power supply control Parameters
0 = Standby
1 = Power on
POWR? Power supply status query Parameters
0 = Standby
2 = Preparing to switch off 
the projector
1 = Power on
3 = Warm-up in progress
INPT Input selection Parameters
11=RGB1
31=DVI-D
12=RGB2
32=HDMI21=VIDEO
33=SDI 1 (only for PT-DZ21KU, PT-DS20KU)
34=SDI 2 (only for PT-DZ21KU, PT-DS20KU)
INPT? Input selection query
AVMT Shutter control
Parameters
30 = shutter function off (picture mute canceled)
31 = shutter function on (picture mute)
AVMT? Shutter 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 filter errors, 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 is detected 1 = Warning  2 = Error
LAMP? Lamp status query Parameters
1st digits (1 - 5 digits): Lamp 1 cumulative operating time
2nd digit: 0 = Lamp 1 off, 1 = Lamp 1 on
3rd digits (1 - 5 digits): Lamp 2 cumulative operating time
4th digit: 0 = Lamp 2 off, 1 = Lamp 2 on
5th digits (1 - 5 digits): Lamp 3 cumulative operating time
6th digit: 0 = Lamp 3 off, 1 = Lamp 3 on
7th digits (1 - 5 digits): Lamp 4 cumulative operating time
8th digit: 0 = Lamp 4 off, 1 = Lamp 4 on
INST? Input selection list query Parameters are returned with the following values.
“11 12 21 31 32” (only for PT-DW17KU)
“11 12 21 31 32 33 34” (only for PT-DZ21KU, PT-DS20KU)
NAME? Projector name query Returns the name set in [PROJECTOR NAME] of [NETWORK 
SETUP].
INF1? Manufacturer name query Returns “Panasonic”.
INF2? Model name query Returns “DZ21KU”, “DS20KU”, “DW17KU”.
INF0? Other information queries Returns information such as version number.
CLSS? Class information query Returns “1”. 
						

							Technical information
ENGLISH - 157
Appendix
▶■PJLink security authentication
The password used for PJLink is the same as that of the password set for W
eb control.
When using the projector without security authentication, do not set a password for W eb control.
▶zFor 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
Connecting
1)  
Obtain the IP
  address and port number (Initial setting value = 1024) of the projector 
and request for a connection to the projector.
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 menu → [NETWORK] → [NETWORK CONTROL] → [COMMAND 
PORT]
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) 
						

							Technical information
158 - ENGLISH
Appendix
▶zCommand transmission method
Transmit using the following command formats.
Transmitted data
Header
Data sectionTermination 
symbol
Hash value
(“Connecting” (
 page 157)) ‘0’
0x30 ‘0’
0x30 Control command
(ASCII string) (CR)
0x0d
32 bytes 1 byte 1 byte Undefined length1 byte
Received data
Header Data sectionTermination 
symbol
‘0’
0x30 ‘0’
0x30 Control command
(ASCII string) (CR)
0x0d
1 byte 1 byteUndefined length 1 byte
Error response
Error message Termination symbol
“ERR1”
 
Undefined control command
“ERR2”

 
Out of parameter range
“ERR3”

 
Busy state or no-acceptable period
“ERR4”

 
T

imeout or no-acceptable period
“ERR5”
 
W

rong data length
“ERRA”
 
Password mismatch (CR)
0x0d
4 bytes 1 byte
▶■When W eb control administrator rights password is not set (Non-protect 
mode)
▶z Connecting
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 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 menu → [NETWORK] → [NETWORK CONTROL] → [COMMAND 
PORT]
2) Check the response from the projector
Response data
Data section
BlankModeTermination 
symbol
“NTCONTROL” (ASCII string) ‘ ’
0x20 ‘0’
0x30 (CR)
0x0d
9 bytes 1 byte1 byte1 byte
Mode: 0 = Non-protect mode 
						

							Technical information
ENGLISH - 159
Appendix
▶zCommand transmission method
Transmit using the following command formats.
Transmitted data
Header
Data sectionTermination 
symbol
‘0’
0x30 ‘0’
0x30 Control command
(ASCII string) (CR)
0x0d
1 byte 1 byteUndefined length 1 byte
Received data
Header Data sectionTermination 
symbol
‘0’
0x30 ‘0’
0x30 Control command
(ASCII string) (CR)
0x0d
1 byte 1 byteUndefined length 1 byte
Error response
Error message Termination symbol
“ERR1”
 
Undefined control command
“ERR2”

 
Out of parameter range
“ERR3”

 
Busy state or no-acceptable period
“ERR4”

 
T

imeout or no-acceptable period
“ERR5”
 
W

rong data length
“ERRA”
 
Password mismatch (CR)
0x0d
4 bytes 1 byte 
						

							Technical information
160 - ENGLISH
Appendix
/ terminal
The / terminal of the projector conforms with RS-232C so that the projector can be 
connected to and controlled from a computer.
▶■Connection
When using 1 unit
When using multipl\
e units
Connecting termina\Dls on projector 1Connecting termina\Dls on projector 2
 D\fSub \b\fpin 
(female)  D\fSub \b\fpin 
(male)  D\fSub \b\fpin 
(female)  D\fSub \b\fpin 
(male)Connecting termina\Dls on this device
Computer Computer D\fSub \b\fpin (female)
 D\fSub \b\fpin (male)  D\fSub \b\fpin 
(female)  D\fSub \b\fpin 
(male)
 D\fSub \b\fpin (male)
Communication cable\D
Communication cable\D Communication cable\D
▶■Pin assignments and signal names
D-Sub 9-pin (female)
Outside view Pin No. Signal name
Details
(9) (6)
(5) (1)
(1)
— NC
(2) TXD Transmitted data
(3) RXD Received data
(4) — Connected internally
(5) GND Earth
(6) — NC
(7) CTS
Connected internally
(8) RTS
(9) — NC
D-Sub 9-pin (male)
Outside view Pin No. Signal name
Details
(6) (9)
(1) (5)
(1)
— NC
(2) RXD Received data
(3) TXD Transmitted data
(4) — NC
(5) GND Earth
(6) — NC
(7) RTS
Connected internally
(8) CTS
(9) — NC
▶■Communication conditions
Signal level
RS-232C-compliant Character length8 bits
Sync. method Asynchronous Stop bit1 bit
Baud rate 9
  600 bps X parameterNone
Parity None S parameterNone