Panasonic PT-RZ470U / PT-RZ470E / PT-RZ470EA / PT-RW430U / PT-RW430E / PT-RW430EA (serv.man8) Service Manual ▷ View online
5. Notification for service operation
5. 1. Before service operation
5. 1. 1. Light source
1. LD(Laser) unit that is mounted on the inside of the light source unit is classified in Class 4 of the safety standards
Laser light can damage the human eye and skin.
It is dangerous, please do not perform energization in the state where the lighting case was disassembled.
2. When the ambient temperature becomes 35 °C (95 °F) or higher, the output light may be reduced to protect the projector.
3. The light source of the projector uses LED and Laser, luminance of the light source will decrease by duration of usage.
The usage time until when the luminance of the light source decreases by half is approximately 20 000 hours.
20 000 hours is the estimated duration, and it varies depending on individual differences and usage conditions.
4. Static electricity or electrical surges will reduce and degrade the reliability of the light source.
When working with the LDs take countermeasures to avoid the generation of static electricity, Use or wear appropriate
work clothes, gloves, shoes, grounded wrist straps and other tools to avoid static electricity.
5. 1. 2. DMD chips
1. The DMD chips are precision-made. Note that in rare cases, pixels of high precision could be missing or always lit.
Note that such phenomena does not indicate malfunction.
2. This is not a malfunction. Directing a high-power laser beam onto the lens surface can damage the DMD chips.
5. 1. 3. Lithium battery
1. The lithium battery is used for the internal clock in the A-P.C.Board. So when it consumed it must be replaced.
* Use only specified lithium battery.
* used battery must be scrapped according to the instruction.
2. After replacing the lithium battery, set the "Date and Time" on the sub-menu which in main menu "projector set up".
5. 2. Service
5. 2. 1. Supporting Methods
The basic service policy is shown below.
・ P-P.C.Board
(* Specified components are replaced)
・ M1-P.C.Board (internal)
・ K-P.C.Board
・ M2-P.C.Board (intake)
・ D-P.C.Board
・ M3-P.C.Board (airflow)
・ B-P.C.Board
・ CW-P.C.Board
・ PD-P.C.Board
・ LD unit
・ DMD Block (with FM-P.C.Board)
・ LED-R unit
・ Lens unit
・ LED-B unit
・ Other electrical parts / Other mechanical parts
5. 2. 2. Jig and Tool
1. Hexalobe (TORX type) driver [2.72 mm]
VESSEL T10H or comparable product
Part No. : TZSH07035
2. One-sided screw removal tool
When disassembling the optical block.
Part No. : TZSH07036
3. Hex wrench/Hex ball-point driver
[2.5mm] : Use for the lighting area adjustment.
[3.0mm] : Use for separate the lighting block and the DMD block.
4. Laser safety glass
Wavelength 440 ~ 455nm adaptation, laser light full absorption type.
Part No. : TZSH07038 (or comparable product)
Lithium battery : CR2032
Replaced by discrete components
Block replacement
P.C.Board replacement
P.C.Board replacement
Service method
Applied parts
INF - 14
5. 2. 3. Repair
1. Energization check and adjustment, after assembling the lighting block completely.
The service engineer who works on this model and also other people who are in the same room need to wear
the laser safety glasses for avoiding the laser irradiation just in case.
the laser safety glasses for avoiding the laser irradiation just in case.
(Usually, if a top case is removed, the interlock switch on A-P.C.Board will detection, and it will stop lighting of a light source. )
2. While the fan is working, do not pull the plug out nor disconnect the breaker.
* When the monitor of power supply lamp turns red and the fan stops, disconnecting can be done.
3. Make sure to turn off the power before repair.
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or
Whether the Lighting case cover and lighting top case are installed completely,
please check the before turning on the power.
please check the before turning on the power.
Interlock SW
Lighting case cover
Lighting top case
INF - 15
When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or
human body. Be careful of static electricity and wear the anti-static electricity globes.
4. After finishing the repair, check whether it works properly or not.
Check the image with 10 steps or gray scales that can show the gradation and perform self-check.
Check the image with 10 steps or gray scales that can show the gradation and perform self-check.
5. 2. 4. Replacement of A-P.C.Board
the section 3 "Adjustment".
* Down load the adjustment software from our Projector service web site.
If you cannot transfer the data that uses the service software, remove IC1405/IC1407 from the original board
and mount them on the new board.
* Down load the adjustment software from our Projector service web site.
If you cannot transfer the data that uses the service software, remove IC1405/IC1407 from the original board
and mount them on the new board.
5. 3. 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.
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.
If replacing A-P.C.Board (assembly), read the ROM data from the old P.C.Board and write it in the new one according to
INF - 15
INF - 16
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.
・
・
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.
・
・
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.
・
・
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.
LD
uni
t
LD-Relay lens1
LD-Relay
lens 2
Diffuser panel
G-Transmissive
Dichroic mirror
R- Transmissive
Dichroic mirror
Phosphor Wheel
LED-Relay
lens
LED-Collimate
lens1、2
P-Collimate
lens1、2、3
LED-Collimate
lens 2
R
od
int
egr
at
or
Relay lens 1
Relay lens 2
(Lighting area ADJ)
Relay lens 3、4
Relay lens 5
DMD
LED
-R
uni
t
LED-B unit
Lens unit
Lighting brock
DMD block
Brightnes
s sensor
Reflection
mirror 2
INF - 17
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
－
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
－
DMD temperature sensor
⇒
⇒
Under -36 degrees
Connection problem with DMD temperature sensor
Faulty temperature sensor
－
Internal air temperature problem
Fresh air intake port is blocked up
DMD temperature is low.
Adjust the Installation environment.
Phosphor wheel fault
－
－
58 degrees
"TEMPERATURE WARNING"
56 degrees
warning cancel
All light source lighting failure
Driver circuit fault
Connection error
68 degrees
"TEMPERATURE WARNING"
66 degrees
warning cancel
－
DMD temperature error.
Fresh air intake port is blocked up
Failure of the heat sink mounting
46 degrees
"TEMPERATURE WARNING"
45 degrees
warning cancel
－
－
Abnormality of fan rotation
OSD warning
－
－
－
－
Possible factor
Blown out of the fuse
( 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
Top cover is not installed.
－
Abnormalities in fan connection
Fan failure
Connection problem with Internal air temperature
sensor
Faulty temperature sensor
－
LIGHT LED blinks 2
times
Phosphor wheel Index signal
⇒
⇒
45 Hz or less
Monitor LED indication
Each FAN sense signal
is undetectable.
STANDBY/ON LED: Red
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
FPGA initialized or
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)
Internal air temperature sensor
⇒
⇒
More than 70 degrees
LIGHT LED blinks 3
times
All the light source errors
⇒
⇒
Status signal from the driver
microcontroller, all light source is
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.
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.
DMD temperature sensor
⇒
⇒
After light source lighting, less
than 5 degrees for more than 5 min.
DMD temperature sensor
⇒
⇒
More than 60 degrees
Click on the first or last page to see other PT-RZ470U / PT-RZ470E / PT-RZ470EA / PT-RW430U / PT-RW430E / PT-RW430EA (serv.man8) service manuals if exist.