Panasonic PT-TX301RU / PT-TX301RE / PT-TX301REA / PT-TW331RU / PT-TW331RE / PT-TW331REA (serv.man3) Service Manual ▷ View online
PT-TW331R / PT-TX301R series
4-3
(240/255)White
/(15/255)Black
4-3 Calibration
1. ADC Calibration
Note: After replacing main board or upgrading firmware, the ADC calibration
should be done.
should be done.
Procedure
- Test equipment: video generator
(1) Test signal: 1024 x 768@60Hz (PT-TX301R)
1280 x 800@60Hz (PT-TW331R)
(2) Test Pattern: (240/255)white/(15/255)Black
1280 x 800@60Hz (PT-TW331R)
(2) Test Pattern: (240/255)white/(15/255)Black
- Note
(1) Calibration pattern should be in full screen mode.
(2)
Press Power > Left >Right > Menu buttons
sequentially on remote controller or on the top
panel to get into service mode.Choose “ADC
Calibration” from the service mode menu.
sequentially on remote controller or on the top
panel to get into service mode.Choose “ADC
Calibration” from the service mode menu.
Inspection item
- Check if there is lines or noise on the screen.
- Horizontal and vertical position of the video should be
adjustable to the screen frame.
Criteria
- If there is noise on the screen, the product is consid-
ered as failure product.
- The screen appears normal, it shouldn’t appear
any abnormal condition,such as lines and so on.
- Check if the projection is same as monitor displayed.
PT-TW331R / PT-TX301R series
4-4
4-4 Waveform download and Fan
calibration
After replacing Lamp driver,main board,blower or
upgrade firmware,please follow steps as below:
1. Plug in power cord.
2. Press and hold the [Up] button and then press the
[Power] button once.
[Power] button once.
3. Release the [Up] button after the [Temp] LED begins
flashing.
4. After a moment , the projector will turn on automatically.
5.Wait a moment, enter the Service Mode by pressing the
buttons sequentially as follows;
buttons sequentially as follows;
Power > Left >Right > Menu
6. Select “Factory Fan RPM” on the service menu and
press “Menu” button.The picture A as shown on the
right will appear.Check that the value of “Factory RPM”
is within the range as listed below;
is within the range as listed below;
3900
〜 5950
PT-TW331R / PT-TX301R series
4-5
4-5 Color Wheel Index Adjustment
Note: After replacing main board,optical engine or upgrading
firmware, the Color Wheel Index Adjustment should be done.
firmware, the Color Wheel Index Adjustment should be done.
Procedure - Test equipment: video generator.
(1) Test signal: 1024 x 768@60Hz (PT-TX301R)
1280 x 800@60Hz (PT-TW331R)
(2) Test Pattern: 64 gray RGBW
Inspection item
(1) Test signal: 1024 x 768@60Hz (PT-TX301R)
1280 x 800@60Hz (PT-TW331R)
(2) Test Pattern: 64 gray RGBW
Inspection item
- Check if each color level is well-functioned.
- Color saturation.
Criteria
- Screen appears normal. It should not have any
abnormal condition, such as lines appear on the
screen and so on.
screen and so on.
- Color appears normal.
- RGBW should all appear normal on the screen
and sort from R -G-B-W.
- Color levels should be sufficient and normal.
- Gray level should not have abnormal color or
- Gray level should not have abnormal color or
heavy lines.
- If color appears abnormal, please get into service
mode to do Color Wheel Index Adjustment.
Color wheel index adjustment procedure:
1. Enter the Service Mode by pressing the buttons
sequentially as follows:
Power > Left> Right>Menu
1. Enter the Service Mode by pressing the buttons
sequentially as follows:
Power > Left> Right>Menu
2. Select “Color Wheel Index” on the menu.
3. Press [Menu] button to enter the Color Wheel Index Adjustment
mode.
mode.
4. Choose “Color Wheel Index”,press [Menu] button to enter the
Color Wheel Index Adjustment.
Color Wheel Index Adjustment.
5. Adjust the color and gradiation of the pattern correctly on the
screen by pressing the [Left] or [Right] button.
screen by pressing the [Left] or [Right] button.
64 gray RGBW
PT-TW331R / PT-TX301R series
4-6
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