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Model
PT-VW355N PT-VW355ND T-VW355NT PT-VX425N PT-VX425ND PT-VX425NT (serv.man2)
Pages
110
Size
23.75 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / LCD PROJECTOR
File
pt-vw355n-pt-vw355nd-t-vw355nt-pt-vx425n-pt-vx425n.pdf
Date

Panasonic PT-VW355N / PT-VW355ND / T-VW355NT / PT-VX425N / PT-VX425ND / PT-VX425NT (serv.man2) Service Manual ▷ View online

ADJ-11
SECTION 3 ADJUSTMENTS
1. 4. Color shading correction / gamma shipment data transfer
1. 4. 1. Required equipment
1. PC : Use for backup data transfer
2. Communication cable : D-sub 9pin (male/female RS-232C straight)
3. Software : Projector Service Tool software (Color shading correction/gamma shipment data transfer software)
  (Download from the projector service homepage.)
1. 4. 2. Preparation
1. Projector Service Tool installation
   Move the folder "Projector Service Tool" to your favorite directly on your Computer. Double click the "Setup.exe" icon in the 
folder to start the installation. Follow the installation window to install.
2.  Take a memo of Baudrate and Parity set in the projec-
tor.
3.  Connect the serial terminal of projector and PC with an 
RS-232C cable.
[Note]  Setup the projector not to enter the standby mode 
or shutdown mode during the working.
Communication cable (straight)
D-Sub 9p (Male)
D-Sub 9p (Female)
Projector Connection terminals
Computer
1.4.3.  Reading out the color shading correction data 
(before replacing A-P.C.B)
1. Power on the projector.
2.  Start the software by selecting the [Projector Service Tool Ver x.x] with 
the menu [Start] - [Program] - [Projector Service Tool].
 Select [RS232C Port Setting] from the [Settings] menu on the Setting 
dialog box to show the Property dialog window. Apply the default settings 
as the figure below generally. Click [OK] after finishing the settings. The 
Property dialog box disappears, and the Setting dialog window appears 
again.
3.  Select the communication port and click [Start]. The computer starts 
to connect with the projector, and Adjustment Display appears when 
the connection succeeds. 
  •  If the Adjustment Display does not appear, or error messages ap-
pear, change the communication port or check the connection of the 
computer and the LCD projector once again. 
4.  When the communication is established, the software will begin to read 
out the color shading correction and gamma correction data from the 
projector automatically.
Transfer speed 
9600
Data bit 
8
Stop bit 
1
Echo  
Off
Parity  
non
Flow control 
N/A
Setting dialog window
ADJ-12
SECTION 3 ADJUSTMENTS
5. After completing of reading out the color shading correction data, the adjustment display appears as below.
(1)
(2)
(10)
(5)
(6)
(7)
(12)
(9)
(8)
(11)
(4)
(3)
(13)
(1) Tool Bar
(2) Adjusting Area
 
 This part shows the data of the area projected by the 
LCD projector. Select the parts of the area to be adjust-
ed.
(3) Adjusting Color
 
Select the color to be adjusted. 
(4)  Pitch Correction
 
 Select the degree for adjustment. Set the degree lower 
for fine-tuning.
(5)  Reset (Zero) button
 
 Click this button to set the value ‘0’ of “Adjusting Knob”.
(6)  Adjusting Knob             
 
 Move this knob to increase or decrease the value.
(7)  Adjusting Value
 
 This window shows the color level of the part selected in 
the Adjusting area. 
 
(Adjusting value is -128 up to 127.)
(8)  Loading button
 
 Click this button to read out the data from the Color 
Shading Correction Circuit in the LCD projector on to 
this Adjusting display.
(9)  Transfer button
 
 Click this button to write the adjusting data in the 
Color Shading Correction Circuit. The data adjusted 
by this software is applied to the LCD projector by 
pressing this button.
(10) Adjustment Selection Tab
 
 Select the adjustment item. The gray-out tab appears 
when the projector does not support.
(11) Gray Level Selector
 
 Select the gray level selector.
(12) (All) Reset button
 
 Click this button to set the value ‘0’ of all the color 
shading correction data in the projector.
(13) End button
 
 Quit  application
1. 4. 4. Saving the color shading correction data
The data read out from the projector can be saved with computer. 
Select [Save As] on the [File (F)] menu to save the data.
The initial file name is defined as the below.
  Color shading correction data: CShadyymmdd.txt  
ex.: CShad131216.txt
ADJ-13
SECTION 3 ADJUSTMENTS
1. 4. 5. Loading and saving the gamma shipment data (before replacing A-P.C.B)
1. Select [gamma shipment data] tab. The below window will appear.
Name  
Function
(1) Adjustment Selection tab
 
 
  
 
 Selects the item of the adjustment. Some adjustment tabs may indicate with gray-out when the pro-
jector does not support its function.
(2) Loading 
Load the shipment data stored in the memory IC and write-down it on the PC.
(3) Transfer 
Transfer the shipment data stored on the PC into the memory IC.
(4) Setup    
 Use this function if the shipment data is not available. Write-down the standard shipment data into 
the memory IC. This button may not appear depending on the models. It means that  the setup is 
not required because the setup data is stored in the memory IC on the main board already.
(5) Data area 
Displays shipment data.
(6) End  
 
Quits the application.
(4)
(1)
(3)
(5)
(6)
(2)
2.  Click the [Loading] button to start loading the gamma data 
from the projector. 
3.  After completing loading, select the directory to save the data 
and name it.
The initial file name is defined as the below.
  Gamma shipment data: VD_DATA_yymmdd.txt  
  ex.: VT_DATA_131216.txt
ADJ-14
SECTION 3 ADJUSTMENTS
 4.  After saving, the dialog window will appear as the below. Click [OK] to close loading. Loaded data is displayed on the data 
area.
  The loaded data displayed on the data area. 
1. 4. 6.  Writing the color shading correction data (after replacing A-P.C.B)
When taking the color shading correction data writing, per-
form the writing by selecting the data which was saved with 
function [Reading out the color shading correction data].
1. Select the [color shading correction] tab.
2.  Select [Open] on the [File )F)] menu. Select the data file 
and click the [Open] button on the dialog window.
  •  The reading data will appear on the adjusting window.
3.  Click [Transfer] button to start writing the color shading 
correction data to the projector.
  •  After completing transferring, the correction data will 
apply on the projected screen.
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