Panasonic PT-RZ475U / PT-RZ475E / PT-RZ475EA Service Manual ▷ View online
6. Troubleshooting
6. 1. Optical block overview
・
The light source is composed of a blue LED, the red LED and the
laser unit (LD).
LD is formed by 30 blue light laser diodes and mountain type
collimate lens.
LD is formed by 30 blue light laser diodes and mountain type
collimate lens.
・
The blue laser light from LD is equalized with a diffusion board,
after being condensed by a relay lens 1-2.
Then, it reflects with a G-Transmissive Dichroic mirror, and enters
into a phosphor wheel.
Then, it reflects with a G-Transmissive Dichroic mirror, and enters
into a phosphor wheel.
・
It is changed into a green light with a phosphor wheel, it is changed
into a parallel light by P-Collimate lens1-3, and enters into a rod
integrator.
integrator.
・
The light of each LED, changes emission light into parallel light by
each collimate lens, lets each dichroic mirror and each relay lens
pass, and enters into a rod integrator.
pass, and enters into a rod integrator.
LD
unit
LD-Relay lens1
LD-Relay
lens 2
Diffuser panel
G-Transmissive
Dichroic mirror
Dichroic mirror
R- Transmissive
Dichroic mirror
Dichroic mirror
Phosphor Wheel
LED-Relay
lens
lens
LED-Collimate
lens1、2
lens1、2
P-Collimate
lens1、2、3
lens1、2、3
LED-Collimate
lens 2
lens 2
Rod i
nt
egrat
or
Relay lens 1
Relay lens 2
(Lighting area ADJ)
Relay lens 3、4
Relay lens 5
DMD
LED-
R unit
LED-B unit
Lens unit
Lighting brock
DMD block
Brightnes
s sensor
s sensor
Reflection
mirror 2
mirror 2
INF - 18
6. 2. Shutdown system
When something wrong such as stop of fan happens, the projector has a function to be on standby immediately.
LD unit temperature sensor
⇒
⇒
Under -36 degrees
Connection problem with LD temperature sensor
Faulty temperature sensor
Faulty temperature sensor
-
LED-R temperature sensor
⇒
⇒
Under -45 degrees
Connection problem with LED-R unit
-
LED-B temperature sensor
⇒
⇒
Under -45 degrees
Connection problem with LED-B unit
-
Intake air temperature sensor
⇒
⇒
Under -45 degrees
Connection problem with Intake air temperature
sensor
Faulty temperature sensor
sensor
Faulty temperature sensor
-
DMD temperature sensor
⇒
⇒
Under -36 degrees
Connection problem with DMD temperature sensor
Faulty temperature sensor
Faulty temperature sensor
-
Internal air temperature problem
Fresh air intake port is blocked up
Fresh air intake port is blocked up
DMD temperature is low.
Adjust the Installation environment.
Adjust the Installation environment.
Phosphor wheel fault
-
-
58 degrees
"TEMPERATURE WARNING"
56 degrees
warning cancel
"TEMPERATURE WARNING"
56 degrees
warning cancel
All light source lighting failure
Driver circuit fault
Connection error
Driver circuit fault
Connection error
68 degrees
"TEMPERATURE WARNING"
66 degrees
warning cancel
"TEMPERATURE WARNING"
66 degrees
warning cancel
-
DMD temperature error.
Fresh air intake port is blocked up
Failure of the heat sink mounting
Fresh air intake port is blocked up
Failure of the heat sink mounting
46 degrees
"TEMPERATURE WARNING"
45 degrees
warning cancel
"TEMPERATURE WARNING"
45 degrees
warning cancel
-
-
Abnormality of fan rotation
OSD warning
-
-
-
-
Possible factor
Blown out of the fuse
( with some reason )
( with some reason )
Signal processing unit PCB is faulty
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
Top cover is not installed.
-
Abnormalities in fan connection
Fan failure
Fan failure
Connection problem with Internal air temperature
sensor
Faulty temperature sensor
sensor
Faulty temperature sensor
-
LIGHT LED blinks 2
times
times
Phosphor wheel Index signal
⇒
⇒
45 Hz or less
Monitor LED indication
Each FAN sense signal
is undetectable.
is undetectable.
STANDBY/ON LED: Red
TEMP LED: Lights
TEMP LED: Lights
No flashing or blinking
Each FAN sense signal
⇒
⇒
Less than 70% of target rotations
is 120 sec or more.
Power fuse
⇒
⇒
K-P.C.B : 10A 250V
⇒ P-P.C.B : 2A 250V
⇒ B-P.C.B : 5A 250V
⇒ B-P.C.B : 5A 250V
FPGA initialized or
Communication error
Communication error
Shutdown detection
Formatter initial error
Interlock switch
TEMP LED Blinks 3 times
Internal air temperature sensor
⇒
⇒
Under -45 degrees
TEMP LED Blinks 2
times
(Warning: TEMP LED
lights)
times
(Warning: TEMP LED
lights)
Internal air temperature sensor
⇒
⇒
More than 70 degrees
LIGHT LED blinks 3
times
times
All the light source errors
⇒
⇒
Status signal from the driver
microcontroller, all light source is
other than during normal operation.
other than during normal operation.
Intake air temperature sensor
⇒
⇒
More than 47 degrees
Intake air temperature problem
Fresh air intake port is blocked up
Outside air temperature is high.
Fresh air intake port is blocked up
Outside air temperature is high.
LD unit temperature sensor
⇒
⇒
After light source lighting, less
than 0 degrees for more than 5 min.
LD unit temperature is low.
Adjust the Installation environment.
Adjust the Installation environment.
DMD temperature sensor
⇒
⇒
After light source lighting, less
than 5 degrees for more than 5 min.
DMD temperature sensor
⇒
⇒
More than 60 degrees
INF - 19
6. 3. System log data acquisition method
6. 3. 1. Equipment to be used
1. Computer : Use it for collection of log data.
2. Communication cable : D-sub 9pin (male/female RS-232C straight)
3. Service Software : [DataLogBackup.exe] (Please download the service software from the service website.)
2. Communication cable : D-sub 9pin (male/female RS-232C straight)
3. Service Software : [DataLogBackup.exe] (Please download the service software from the service website.)
6. 3. 2. Preparation
[Caution]
・Set the "SERIAL" in "RS-232C INPUT SELECT"
of "PROJECTOR SETUP" menu.
6. 3. 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.
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.
1. Confirm and make a note of "Projector ID",
"Transmission speed" and ""Parity setting".
"Transmission speed" and ""Parity setting".
2. Correct the serial terminals on the projector and
the PC by using a communication cable.
the PC by using a communication cable.
Computer
RS-232C straight
Projector
INF - 20
5. Select "Log (SYSTEM)" and click "Get" button.
6. Log is displayed.
INF - 21
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