Panasonic PT-RZ370U / PT-RZ370E / PT-RZ370EA / PT-RW330U / PT-RW330E / PT-RW330EA (serv.man5) Service Manual ▷ View online
INF - 13
5. 2. 3. Repair
1. Energization check and adjustment, after assembling the lighting block completely.
Moreover, since laser light may leak from lighting brock and the circumference, please be sure to wear the
laser safety glass.
laser safety glass.
(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
human body. Be careful of static electricity and wear the anti-static electricity globes.
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.
* Down load the adjustment software from our Projector service web site.
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
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 - 14
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 - 18
6. 2. Shutdown system
When something wrong such as stop of fan happens, the projector has a function to be on standby immediately.
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
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
－
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
－
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
－
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
－
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
－
INF - 16
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］ Service software is downloaded from the projector service homepage.
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. 3. 2. Preparation
[Caution]
・Computer, please set so as not to standby or shutdown.
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".
2. Correct the serial terminals on the projector and
2. Correct the serial terminals on the projector and
the PC by using a communication cable.
Computer
RS-232C straight
Projector
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