Panasonic PT-CW240U / PT-CW240E / PT-CW240EA / PT-CW330U / PT-CW330E / PT-CW330EA / PT-CX300U / PT-CX300E / PT-CX300EA / PT-CW241RU / PT-CW241RE / PT-CW241REA / PT-CW331RU / PT-CW331RE / PT-CW331REA / PT-CX301RU / PT-CX301RE / PT-CX301REA Service Manual ▷ View online
PT-CW240/PT-CX300/PT-CW330
4-1
Chapter 4
Function Test & Alignment Procedure
4-1 Run In Test
- Temperature: 15°C~35°C
- Circumstance brightness: Normal environment
- Screen size: No concern
- Display mode: ECO mode
After repairing each unit, a Ru
- Circumstance brightness: Normal environment
- Screen size: No concern
- Display mode: ECO mode
After repairing each unit, a Ru
n-in test is necessary (refer to the below table).
Symptom
Run-in Time
Normal repair
2 hours
NFF
4 hours
Auto shutdown
6 hours
- Get into Burn-In Mode
* Cycle setting is based on the defect symptoms. ie: If it is NFF, the run-in time is 4 hours. You have
to set the lamp on for 50 min. and lamp off for 10 min for 4 cycles.
Press POWER > Left >Right > MENU buttons sequentially on remote controller or on the top
panel to get into service mode.
Choose Burn-In Test > MENU
Lamp On
Choose Burn-In Test > MENU
Lamp On
Press right key to adjust the time (50)
Lamp Off
Press right key to adjust the time (10)
Set burn in cycle
Press right key to adjust the cycle
After setting up the time, choose “Enter Burn-In Mode” and press "MENU".
The projector will start testing.
PT-CW240/PT-CX300/PT-CW330
4-2
4-2 Test Inspection Procedure
1. Check Points
Check item
Check point
Firmware version
All firmware version must be the latest version
TB implementation
Related TB must be implement
Cosmetic
Cosmetic can not be broken
Logo
Missing logo, missing prints and blurry prints are
unacceptable
Lamp cover
It should be locked in the correct place.
Zoom in/out
The function should work smoothly
Keypad
All keypad buttons must operate smoothly
2. OSD Reset
After final QC step, we have to erase all saved change again and restore the OSD
default setting. The following actions will allow you to erase all end-users' settings and
restore the default setting:
(1) Please enter OSD menu.
(2) Choose "Options" and then execute "Reset" function
(1) Please enter OSD menu.
(2) Choose "Options" and then execute "Reset" function
PT-CW240/PT-CX300/PT-CW330
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.
Procedure
should be done.
Procedure
- Test equipment: video generator
(1) Test signal: 1280 x 800@60Hz for PT-CW330/
CW240
1024 x 768@60Hz for PT-CX300
(2) Test Pattern: (240/255)white/(15/255)Black
- Note
(1) Calibration pattern should be in full screen mode.
(2) Press POWER > Left >Right > MEMU buttons
(2) Press POWER > Left >Right > MEMU buttons
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-CW240/PT-CX300/PT-CW330
4-4
4-4 Waveform download
After replacing Lamp driver, the “waveform
download” is needed as below.
1. Hold on [POWER] and [MENU] button and plug in the
power cord. The [POWER] LED will flash in red.
2. Release the [POWER] and [MENU] buttons in 2s.
3. The [POWER] LED flashes in red and green alternately.
4. Press [POWER] button. The [POWER] LED will light in
2. Release the [POWER] and [MENU] buttons in 2s.
3. The [POWER] LED flashes in red and green alternately.
4. Press [POWER] button. The [POWER] LED will light in
green for about 5s add then turnes red.
5. The waveform download is complete.
Note:
- Check whether execute auto Waveform download,
if not, repeat the step again.
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