Panasonic PT-DZ21KU / PT-DZ21KE / PT-DS20KU / PT-DS20KE / PT-DW17KU / PT-DW17KE Service Manual ▷ View online
6. Troubleshooting
6. 1. Shutdown system
*1:Different values by "number of lamp lit", or "Fan mode", "direction of installation"
－
Fan malrotation, life
Fan drive circuit malfunction
Fan drive circuit malfunction
To turn off an applicable
lamp.
(Shut down in two or more)
lamp.
(Shut down in two or more)
Liquid cooling pump malrotation,
life
Liquid cooling pump drive circuit
malfunction
life
Liquid cooling pump drive circuit
malfunction
5 seconds, a warning in
less than 70% of the target
rotational speed
(Warning:TEMP Red
lights)
less than 70% of the target
rotational speed
(Warning:TEMP Red
lights)
STANDBY/ON
Blinks in red 1 times
Blinks in red 1 times
Fan rotation speed readings (except lamp
fan)
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each fan sense signal>
fan)
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each fan sense signal>
Liquid cooling pump rotation speed readings
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each pump sense signal>
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each pump sense signal>
TEMP
Blinks in red 3 times
Blinks in red 3 times
FE1～FE6
FF1～FF9
Measured value of Optical module
temperature sensor ⇒ More than 65 ℃ *1
temperature sensor ⇒ More than 65 ℃ *1
F91/F92
FJ0～FJ3
FE1～FE9
FF0～FF9
OSD warning, etc
－
Measured value of Optical module
temperature sensor ⇒ More than 55 ℃ *1
temperature sensor ⇒ More than 55 ℃ *1
「TEMPERATURE
WARNING」
(Warning:TEMP Red
lights)
WARNING」
(Warning:TEMP Red
lights)
Measured value of Intake air temperature
sensor ⇒ Below -20 ℃
sensor ⇒ Below -20 ℃
Interlock SW status
Open more than 1 second (R3-P.C.B P31)
Open more than 1 second (R3-P.C.B P31)
Measured value of Intake air temperature
sensor ⇒ 48℃ or more
(High altitude:43℃ / Smoke cut:38℃)
sensor ⇒ 48℃ or more
(High altitude:43℃ / Smoke cut:38℃)
Measured value of Optical module
temperature sensor
After power-on, Is below 5 ℃ for more than
5 minutes.
temperature sensor
After power-on, Is below 5 ℃ for more than
5 minutes.
Shutdown detection
Exhaust fan is deterioration,
abnormal
Ventilation holes are blocked
At highlands, high altitude mode
is not set
abnormal
Ventilation holes are blocked
At highlands, high altitude mode
is not set
－
Fan malrotation, life
Fan drive circuit malfunction
Fan drive circuit malfunction
Connector connection
malfunction
Fan drive power defect
FPGA communication error
malfunction
Fan drive power defect
FPGA communication error
Rotation of fan or liquid cooling pump is not
recognizable
<IC6525 Each fan / pumu sense signal>
recognizable
<IC6525 Each fan / pumu sense signal>
Indicator indication
STANDBY/ON
Blinks in red 3 times
Blinks in red 3 times
STANDBY/ON
Red lights
TEMP
Red lights
Red lights
TEMP
Red lights
Not lighting or flashing
U91
TEMP
Blinks in red 2 times
Blinks in red 2 times
Optical module temperature
sensor bad connection
sensor bad connection
Abnormal installation or
deterioration of liquid cooling
module
Ventilation holes are blocked
At highlands, high altitude mode
deterioration of liquid cooling
module
Ventilation holes are blocked
At highlands, high altitude mode
「TEMPERATURE
WARNING」
(Warning:TEMP Red
lights)
WARNING」
(Warning:TEMP Red
lights)
5 seconds, a warning in
less than 80% of the target
rotational speed
(Warning:TEMP Red
lights)
less than 80% of the target
rotational speed
(Warning:TEMP Red
lights)
－
「TEMPERATURE
WARNING」
(Warning:TEMP Red
lights)
WARNING」
(Warning:TEMP Red
lights)
－
High temperature of environment
Ventilation holes are blocked
Intake air temperature sensor
abnormality
Ventilation holes are blocked
Intake air temperature sensor
abnormality
Usage environment temperature
is lower than the rated
is lower than the rated
Probable cause
Blown out of the fuse
( with some reason )
( with some reason )
Check the installation
environment
Ventilation holes are blocked
environment
Ventilation holes are blocked
Rear cover is not installed
Inductor clogging
Something wrong with Ballast
block
Something wrong with Ballast
block
－
Power fuse <K-P.C.B>
F9001/F9002（10A/250V）
F9001/F9002（10A/250V）
Thermal fuse (Automatic restoration type)
⇒ 152 ℃ or more （PC-P.C.B P12）
⇒ 152 ℃ or more （PC-P.C.B P12）
－
Ballast block: heatsink
Sensed temperature （RT1）: 100～110℃
Sensed temperature （RT1）: 100～110℃
Self-diagnosis
－
－
－
FE7～FE9
FF0
Fan rotation speed readings (lamp fan only)
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each fan sense signal>
Less than 70% of the target rotational
speed for 5 seconds
<IC6525 Each fan sense signal>
Bad connection of each
P.C.Board connector
P.C.Board connector
U23
(U13)
H13
U21
(U11)
Intake air temperature sensor
bad connection
bad connection
Exhaust air temperature sensor
bad connection
bad connection
Measured value of Optical module
temperature sensor ⇒ Below -20 ℃
temperature sensor ⇒ Below -20 ℃
－
U24
(U14)
H12
U22
(U12)
－
Measured value of Exhaust air temperature
sensor ⇒ Below -20 ℃
sensor ⇒ Below -20 ℃
－
H11
No response after FPGA configuration
(F91⇒FPGA1/F92⇒FPGA2)
(F91⇒FPGA1/F92⇒FPGA2)
INF - 21
*2 : Countdown value (10-1) is displayed.
▼ Only warning
OSD warning, etc
Indicator indication
Self-diagnosis
Shutdown detection
Probable cause
Filter is not installed
「THE AIR FILTER HAS
NOT BEEN INSTALLED
PROPERLY」
NOT BEEN INSTALLED
PROPERLY」
Clogged filter
Ventilation holes are blocked
Ventilation holes are blocked
「CLEAN THE AIR
FILTER」
FILTER」
If the lamp is not lit all, shut
down
1800h：「REPLACE LAMP」
2000h：「REPLACE LAMP
down
1800h：「REPLACE LAMP」
2000h：「REPLACE LAMP
IN 10
*2
MINUTES,
POWER WILL
TURN OFF AND GO
INTO
STANDBY MODE
TURN OFF AND GO
INTO
STANDBY MODE
FILTER
Red lights
Red lights
LAMP
Blinks in red 3 times
Blinks in red 3 times
U04
<Measured value of airflow sensor>－
<Measured value of Intake air temperature
sensor>
<Measured value of Intake air temperature
sensor>
－
Air Filter detect
(RL-P.C.B RL17)
(RL-P.C.B RL17)
LAMP
Red lights
Red lights
Lamp hours is over ⇒ 2000 hours
(Shuts down after 10 min)
(Shuts down after 10 min)
U51～U54
1800h超
U41～
U44
2000h超
U61～
U64
U41～
U44
2000h超
U61～
U64
LAMP
Blinks in red 1 times
Blinks in red 1 times
Lamp status (Ballast microcomputer)
Lamp is off during the status other than
normal one
Lamp is off during the status other than
normal one
Lamp is not installed
Lamps communication memory (EEPROM)
No access response (ACK)
No access response (ACK)
If the lamp is not lit all, shut
down
down
If the lamp is not lit all, shut
down
down
－
Lamp usage hour is over the
guideline.
guideline.
Lighting failure of the lamp
Hot restart
Lamp abnormality (burst)
Ballast block is abnormal
Blown out of the Power fuse
Hot restart
Lamp abnormality (burst)
Ballast block is abnormal
Blown out of the Power fuse
EEPROM uninitialized data of the
corresponding lamp
(No access response (ACK))
corresponding lamp
(No access response (ACK))
Lamp memory (EEPROM)
communication error
communication error
U71～U74
F41～F44
INF - 22
6. 2. System log data acquisition method
6. 2. 1. Equipment to be used
1. Computer : Use it for the transfer of backup data.
2. Communication cable : D-sub 9pin (male/female RS-232C straight)
3. Service Software : ［DataLogBackup.exe］ Service software is downloaded from the projector service homepage.
6. 2. 2. Connection Preparations
Attention:
Computer, please set so as not to standby or shutdown.
6. 2. 3. Acquisition of log data
1. Switch the projector to "Normal-Standby" mode (POWER indicator is Lighting in red).
2. Start up service software ［DataLogBackup.exe］ with a computer.
3. Select "Option " → " Setting" and set Serial Port of the computer, Baud Rate and Parity.
4. Select a model number and ID.
2. Connect the serial terminals on the projector and
the PC by using a communication cable.
the PC by using a communication cable.
1. Confirm and make a note of "Projector ID" and
"Transmission speed", "Parity setting".
"Transmission speed", "Parity setting".
Computer
Projector
RS-232C straight
INF - 23
5. Select "Log (SYSTEM)" and click "Get" button
6. Log is displayed.
INF - 24
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