Panasonic PT-VW350 / PT-VW350D / PT-VW350T / PT-VX420 / PT-VX420D / PT-VX420T / PT-VX421 (serv.man4) Service Manual ▷ View online
INF-11
SECTION 1 SERVICE INFORMATION
1. FREEZE MESSAGE
• Setting the display of on-screen message "FREEZE"
- ON : Display "FREEZE" message in the freeze mode.
- OFF : Not display "FREEZE" message in the freeze mode.
- ON : Display "FREEZE" message in the freeze mode.
- OFF : Not display "FREEZE" message in the freeze mode.
2. FAN FULL MODE
• Setting the mode of cooling fan motor to the maximum.
- ON : Fixed high speed cooling mode
- OFF : Normal mode (Spinning speed changes depending on the surrounding temperature)
* It sets OFF at the normal.
* The highland mode is not available if it sets ON.
- ON : Fixed high speed cooling mode
- OFF : Normal mode (Spinning speed changes depending on the surrounding temperature)
* It sets OFF at the normal.
* The highland mode is not available if it sets ON.
3. VGA60/480p
• Setting the switching mode of RGB input signal
- AUTO : Select VGA60 or 480p of RGB input signal automatically
- 480p : Select 480p mode forcedly.
- VGA60 : Select VGA60 mode forcedly.
- AUTO : Select VGA60 or 480p of RGB input signal automatically
- 480p : Select 480p mode forcedly.
- VGA60 : Select VGA60 mode forcedly.
4. EMULATE
• Setting the serial command format when using other model's serial control commands.
-DEFAULT: Standard(VW350 series)
-D3500
-D4000
-D/W5k series
-D/W/Z6k series
-L730 series
-L780 series
-L735 series
-L785 series
-F/W series
-LZ370
-LB/W series
-VX500 series
-EZ570 series
-VW431D
-D3500
-D4000
-D/W5k series
-D/W/Z6k series
-L730 series
-L780 series
-L735 series
-L785 series
-F/W series
-LZ370
-LB/W series
-VX500 series
-EZ570 series
-VW431D
-MODE_HI: other company
-MODE_NE: other company
-MODE_EP: other company
-MODE_SA: other company
-MODE_SH: other company
-MODE_MI: other company
-MODE_SO: other company
-MODE_IN: other company
-OTHER:other models
-MODE_NE: other company
-MODE_EP: other company
-MODE_SA: other company
-MODE_SH: other company
-MODE_MI: other company
-MODE_SO: other company
-MODE_IN: other company
-OTHER:other models
* Software of sub-microprocessor cannot be updated when the MODE_** (other company) or OTHER is selected in the EMU-
LATE menu.
5. BAUD RATE
• Setting the baud rate of RS232C communication
- 9600 / -19200 / -38400 / - 57600 / -115200
* The using baud rate will be set when the OTHER is selected in the EMULATE menu. (Use 9600 in normal)
- 9600 / -19200 / -38400 / - 57600 / -115200
* The using baud rate will be set when the OTHER is selected in the EMULATE menu. (Use 9600 in normal)
6. VERSION
* The version no. of command will be displayed when the MODE_** (other company) or OTHER is selected in the EMULATE
menu.
7. INPUT SELECT
* The input select command will be assigned when the MODE_IN is selected in the EMULATE menu.
INF-12
SECTION 1 SERVICE INFORMATION
(1) – Software version of each microprocessor
MM: Main microprocessor, SM: Sub microprocessor,
NT: Network microprocessor
(2) – Input signal name
(3) – Input signal frequency (Horizontal / Vertical)
(4) – Temperature error check
(5) – Temperature at sensors (Celsius)
(2) – Input signal name
(3) – Input signal frequency (Horizontal / Vertical)
(4) – Temperature error check
(5) – Temperature at sensors (Celsius)
INTK (Intake air) / OPTI (Optical module)
EXST (Exhaust air) / FLTR (Filter clogged)
EXST (Exhaust air) / FLTR (Filter clogged)
(6) – Correction value of clogged sensor.
(7) – Fan rotation check
(7) – Fan rotation check
INTK (Intake fan) / LAMP (Lamp fan) / EXST (Exhaust fan)
(8) – Iris error check (NG: error)
(9) – lamp error check (NG: error)
(10) – Lamp memory communication check (NG: error)
(11) – Projector accumulated runtime
(12) – Converted lamp runtime / Lamp on times
(9) – lamp error check (NG: error)
(10) – Lamp memory communication check (NG: error)
(11) – Projector accumulated runtime
(12) – Converted lamp runtime / Lamp on times
Current / 1 time before reset / 2 times before reset
(13) – Projector serial no.
(14) – Version no. of FPGA (for VX420.VW350)
(15) – Version no. of emulate software (when selecting other
(14) – Version no. of FPGA (for VX420.VW350)
(15) – Version no. of emulate software (when selecting other
company). [--] means not set.
(16) – Status of correction data in the memories
G-SAVED: Gamma correction data
U-SAVED: Color shading correction data
(17) – Temperature at sensors (Celsius) when the latest shut-
down occurred by temp error.
INTK (Intake air) / OPTI (Optical module)
EXST (Exhaust air) / FLTR (Filter clogged)
EXST (Exhaust air) / FLTR (Filter clogged)
(18) – Status of lamp replacement time
NG: Lamp runtime exceeds 5000H at lamp power high
(19) – Lamp runtime reset times
(20) – Actual lamp runtime
(20) – Actual lamp runtime
Current / last time reset / 2nd last time reset
8. SELF CHECK
• Displays the self diagnostic information
9. TEST PATTERN
• Displays test patterns of White/Red/Green/Blue raster signals
- Change the patterns by up down buttons, Change the color by left right buttons.
- Change the patterns by up down buttons, Change the color by left right buttons.
10. FLICKER ADJUST
• Perform the flicker adjustment
11. MODEL NO. SETTING
• Setting up the model no. of the projector.
12. PANEL TYPE SETTING
• Setting up the LCD panel type (L-Type or R-Type).
13. FAN VOLT ADJUST
• Adjust the fan voltage.
14. INPUT AUTO CALIBRATION
• Perform the auto calibration of input signal level. (For factory inspection purpose)
15. WHITE BALANCE ADJUST
• Adjust the white balance.
16. KEYSTONE CALIBRATION
• Perform the auto keystone calibration.
17. CLOG SENSOR CALIBRATION
• Perform the calibration of clogged sensor circuit.
For Items 10 to 17 of calibration and adjustment, refer to the "SECTION 3 <Adjustment>" for the procedure.
* The display information varies depending on the input signal and
version of the software.
* The word "OK" of Items (TEMP/FAN/MECHANICAL/LAMP)
would be indicated in red if the projector had shutdown due to
abnormality last time.
abnormality last time.
5'.(%*'%-
50&$
//
5/
06(((
:)#
:)#
'/7.#6'
-*<
)5#8'&
1-
*<
75#8'&
1-
6'/2
6'/2
6'/2
1-
+06-
+06-
':56
':56
126+
126+
(.64
(.64
(.645'05141((5'6
(#0
+06-
+06-
1-
':56
1-
.#/2
1-
/'%*#0+%#.
+4+5
+4+5
1-
.#/2
.#/2
.#/2
1-
*
1-
/'/14;
1-
70+6*+5614;
616#.
616#.
*
4'5'6
*
*
*
*
*
*
(1)
(13)
(15)
(14)
(16)
(17)
(18)
(19)
(20)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(10)
(11)
(12)
(9)
INF-13
SECTION 1 SERVICE INFORMATION
4. Notes on service
4. 1. Before service operation
4. 1. 1. LCD panel
1. The display unit of this projector comprises three LCD panels. Although an LCD panel is a product of high-precision tech-
nology, some of the pixels on the image may be missing or constantly lit. Please note that this is not a failure.
2. Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display the all
white screen in the test pattern for an hour or more.
4. 1. 2. Lamp
1. The light source of the projector is a high-pressure mercury lamp.
2. A high-pressure mercury lamp has the following characteristics.
• The luminance of the lamp will decrease by duration of usage.
• The lamp may burst with a loud sound or have its service life shortened because of shock, chipping, or degradation due to
2. A high-pressure mercury lamp has the following characteristics.
• The luminance of the lamp will decrease by duration of usage.
• The lamp may burst with a loud sound or have its service life shortened because of shock, chipping, or degradation due to
cumulative runtime.
• The lamp life varies greatly depending on individual differences and usage conditions. In particular, continuous use for 12
hours or more and frequent off/on switching of the power greatly deteriorate the lamp and affects the lamp life.
• In rare cases, the lamps burst shortly after projection starts.
• The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unit
• The risk of bursting increases when the lamp is used beyond its replacement cycle. Make sure to replace the lamp unit
regularly.
(Refer to items “When to replace the lamp unit”, “How to replace the lamp unit”)
• If the lamp bursts, gas contained inside of the lamp is released in the form of smoke.
• It is recommended that you store the Replacement Lamp Unit as a contingency.
• It is recommended that you store the Replacement Lamp Unit as a contingency.
Replacement lamp unit : ET-LAV300
Note
* Panasonic takes no responsibility for any damage or malfunction of the
product resulting from use of lamp units which are not manufactured by
Panasonic. Use only specified lamp units.
Panasonic. Use only specified lamp units.
Attention
* Please be sure to read the warnings and notices on the lamp that is
described in the Operating Instructions. "Read this first!", "Precautions for
use", "Maintenance/replacement"
use", "Maintenance/replacement"
4. 1. 3. Air filter unit
1. Make sure that the air filter unit is properly attached before using the projector. If it is
not properly attached, the projector will suck in dirt and dust causing a malfunction.
2. The cleaning and replacement cycle of the air filter unit varies depending on the us-
age environment.
Replacement air filter unit : ET-RFV300
INF-14
SECTION 1 SERVICE INFORMATION
4. 2. Service
4. 2. 1. Supporting Methods
The basic service policy is shown below.
Repair contents
Applied parts
Block replacement
P.C.Board replacement
P.C.Board replacement
- Lighting block (* Specified components are replaced)
- Optical block
- [P]-P.C.Board (Specified components are replaced)
- [BQ]-P.C.Board
- Iris unit
Replaced by discrete components
Other electrical parts and mechanism parts
4. 2. 2. Repair
1. Since very strong light is leakage from the surroundings of optical block, when checking or adjusting the projector with top
cabinet removal, wear the UV protection glasses to protect the UV light.
2. Before repairing, make sure to turn off the main power and disconnect the power plug from the power outlet.
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or human
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or human
body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.
3. After repairing, please check the gradation (10step or the gray scale) test pattern or moving image.
Also, please check that it is normal on a self check screen.
Also, please check that it is normal on a self check screen.
4. 2. 3. Interlock detection
The lamp cover switch detects whether the lamp cover is mounted securely.
When the lamp cover is mounted securely, the interlock switch (K8S) on the [A]-P.C.Board turns on.
When the lamp cover is mounted securely, the interlock switch (K8S) on the [A]-P.C.Board turns on.
4. 2. 4. Replacement of A-P.C. board
1. When the replacement of [A]-P.C.Board (assembly) is needed, back up the memory information such as adjustment data
from the old board to PC with the service software. Then transfer this data to the new [A]-P.C.Board.
For more information refer to the SECTION 3 "Adjustment".
* Download the service software from Projector service web site.
* The several types of adjustment data have been stored in the memory ICs listed below.
* Download the service software from Projector service web site.
* The several types of adjustment data have been stored in the memory ICs listed below.
Ref.
Stored Data
IC1391
User setting data, Service adjustment
data, Model No. Serial No.
data, Model No. Serial No.
IC801
Gamma data, Color shading correction
data
data
2. When [A]-P.C.Board is replaced, the MAC address of wired LAN will be changed. Explain it to the customers in advance.
Interlock switch (K8S)
Click on the first or last page to see other PT-VW350 / PT-VW350D / PT-VW350T / PT-VX420 / PT-VX420D / PT-VX420T / PT-VX421 (serv.man4) service manuals if exist.