Panasonic PT-DZ680U / PT-DZ680E / PT-DW640U / PT-DW640E / PT-DX610U / PT-DX610E (serv.man7) Service Manual ▷ View online
INF - 17
5. 3. 4. Cleaning procedure for air filter unit
1. Power off the projector and disconnect the power plug from the power outlet.
And wait at least one hour, and then check if the lamp unit has been cooled down.
2. Loosen the lamp unit cover fixing screw (one screw) until it turns freely, and then remove the Air filter cover.
3. Hold the tabks on the air filter unit and pull out the air filter unit from the projctor.
4. Clean and dry the air filter unit.
1) Soak the air filter unit in cold or warm water and then lightly rinse it.
* Do not use cleaning tools such as brushes.
* When rinsing, fold the frame of the air filter unit without putting strong
pressure on the filter unit.
2) Rinse the unit two to three times using fresh water each times.
3) Let the unit naturally dry off in a well-ventilated place where there is little
dust and the unit is protected from direct sunlight.
* After clearing the air filter unit, make sure that it is sufficiently dry
before reinstalling it to the projector.
* Do not dry using drying devices such as dryers.
(Please read the page 'Maintenance / Replacement' on the instruction book to know about diatils.)
5. After cleaing the air filter unit, install the filter unit and the air filter cover.
* Perform the disconect step in the reverse order.
* Air filter unit has installed direction . （Check the mark on the Tabs of Air filter unit)
5. 4. Initialization for menu lock password
Follow the procedure below to initialize the password to the default "AAAA".
1. While menu lock password is shown on the screen, press ‘AUTO SETUP’ button on remote controller or operation
panel for more than 2 seconds.
2. Press
button for more than 2 seconds.
Air filter cover
Air filter cover screw
Air filter unit
Tabs
* Mark for direction of
the air filter unit
INF - 18
6. Troubleshooting
6. 1. Shutdown system
When something wrong such as stop of fan happens, the projector has a function to be on standby immediately.
Value "**" is changed by "Lamp mode", or "Fan mode" and "Setting attitude"
Counter value is displayed in ○.
STANDBY/ON LED
blinks in red 4 times
blinks in red 4 times
Inter lock SW
⇒Open the rear cover more than 1
seconds.
⇒Open the rear cover more than 1
seconds.
Lamp usage hour is over the guideline.
（Convert at Lamp power [HIGH] mode）
（Convert at Lamp power [HIGH] mode）
LAMP LED blinks once
Lamp memory (EEPROM)
communication:
⇒No response(ACK)
communication:
⇒No response(ACK)
LAMP LED lights
Intake air temperature sensor
⇒Under -20 degree C
⇒Under -20 degree C
Optical block temperature sensor
⇒Under -20 degree C
⇒Under -20 degree C
Exhaust temperature sensor
⇒More than ** degrees C
⇒More than ** degrees C
Lamp hours is over.
⇒2500 hours
(Shuts down after 10 min.)
⇒2500 hours
(Shuts down after 10 min.)
－
Each ＦＡＮ sense signal
⇒Slower than 50% of target for
more than 5 sec.
⇒Slower than 50% of target for
more than 5 sec.
STANDBY/ON LED: Red
TEMP LED: Lights
TEMP LED: Lights
STANDBY/ON LED
blinks in red 3 times
blinks in red 3 times
No flashing or blinking
Optical module temperature sensor
⇒More than ** degrees C
⇒More than ** degrees C
TEMP LED Blinks 2
times
(Warning: TEMP LED
lights)
times
(Warning: TEMP LED
lights)
Cooling liquid pump speed
⇒Slower than 1000rpm more than 5
sec.
⇒Slower than 1000rpm more than 5
sec.
Intake air temperature sensor
⇒More than 48 degree C
（High altitude mode: more than 43
degree C）
⇒More than 48 degree C
（High altitude mode: more than 43
degree C）
Ballast block:
Thermal protector (SW9601)
⇒ Over 115±5 degrees C
(Returns with 80±15 degree C)
Thermal protector (SW9601)
⇒ Over 115±5 degrees C
(Returns with 80±15 degree C)
Monitor LED indication
－
Cooling liquid unit pump has problem
OSD warning
－
Exhausting temperature sensor
⇒Under -20 degree C
⇒Under -20 degree C
－
DMD drive circuit is faulty or
Signal processing unit PCB is faulty or
Connector connection is faulty
Signal processing unit PCB is faulty or
Connector connection is faulty
Color wheel rotation speed
⇒Over 202Hz or Under 70Hz
⇒Over 202Hz or Under 70Hz
Rotation problem with color wheel
FPGA initialized or
Communication error or
Formatter initial error
Communication error or
Formatter initial error
Replace lamp Power off (Standby)
after ○ min“
after ○ min“
"TEMPERATURE WARNING "
Intake air temperature problem
Filter clogging
High temperature of environment
Intake air window is closed.
Filter clogging
High temperature of environment
Intake air window is closed.
Exhaust temperature error.
Closed ventilator
Deteriorating exhaust fan
High altitude mode is not on
Closed ventilator
Deteriorating exhaust fan
High altitude mode is not on
Optical module temperature is low.
Adjust the setting circumstances.
Adjust the setting circumstances.
Lamp is not installed
Cable for lamp memory has bad contact or
connection.
Cable for lamp memory has bad contact or
connection.
－
－
"TEMPERATURE WARNING "
－
Power fuse
⇒15A 250V
⇒15A 250V
Thermal fuse
(Automatic restoration type)
⇒More than 152 degrees Celsius
(Automatic restoration type)
⇒More than 152 degrees Celsius
－
Possible factor
Blown out of the fuse
( with some reason )
( with some reason )
Bimetal is OFF (with some reason)
Setting environment confirmation is required.
Setting environment confirmation is required.
Inductor clogging
Something wrong with Ballast block
Something wrong with Ballast block
Shutdown detection
Rear cover is not installed.
－
TEMP LED Blinks 3 times
－
Fan rotation problem
Connection problem with Intake air temperature
sensor
Faulty temperature sensor
sensor
Faulty temperature sensor
Connection problem with optical block temperature
sensor
Faulty temperature sensor
sensor
Faulty temperature sensor
Connection problem with exhausting temperature
sensor
Faulty temperature sensor
sensor
Faulty temperature sensor
－
－
LAMP LED blinks 3 times
Lamp status
⇒Lamp is off during the status other
than normal one
⇒Lamp is off during the status other
than normal one
Failed making lamp ON, lamp abnormal condition
Ballast block faulty
Hot restart
Ballast block faulty
Hot restart
FILTER LED blinks once
(RED)
(RED)
Filter is not installed
⇒Filter detect (SW1501)
Not detect more than 10 minutes
⇒Filter detect (SW1501)
Not detect more than 10 minutes
Optical module temperature sensor
⇒After lamp lighting, less than 5
degrees C for more than 5 minutes.
⇒After lamp lighting, less than 5
degrees C for more than 5 minutes.
－
“REPLACE FILTER.
IN ○ MINUTES,POWER WILL TURN
OFF
AND GO INTO STANDBY MODE
AUTOMATICALLY”.
IN ○ MINUTES,POWER WILL TURN
OFF
AND GO INTO STANDBY MODE
AUTOMATICALLY”.
46 degrees C (high altitude 41
degrees C) "TEMPERATURE
WARNING"
44 degrees C (high altitude 39
degrees C) "TEMPERATURE
WARNING"
44 degrees C (high altitude 39
－
Optical module error.
Cooling liquid unit attachment error
Clogged ventilator
High altitude mode is not on
Cooling liquid unit attachment error
Clogged ventilator
High altitude mode is not on
Filter is not installed
INF - 19
6. 2. Temperature detection, Lamp data, Fan drive Circuit
6. 2. 1. Temperature detection Circuit
6. 2. 2. Lamp memory and Lamp status Circuit
INF - 20
6. 2. 3. Fan motor and Color wheel drive Circuit
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