Sunday, May 29, 2016

Sony DLP projector - Sony VPL-DX125 - VPL-DX126 - VPL-DX145 - VPL-DX146 - VPL-DW125 -VPL-DW126 – How to enter to service mode – White balance adjustment – How to adjust the VCOM – Polarizer adjustment - Projector repair and Service


Electrical Adjustment
Required Equipment
# NTSC, PAL, SECAM component signal generator:
Tektronix TG2000 + AVG1 (option module) + AWVG1 (option module) or equivalent
# VG (programmable video signal generator):
ASTRODESIGN VG-828 or equivalent
# Chroma meter:
KONICA MINOLTA CL-200 or equivalent
Note:
Allow the warm-up time of five minutes after the power is turned on before starting the adjustment.
How to Enter the Service Mode
1. Press the [MENU] key.
The menu appears.
2. Set the Status to “On” in the Operation menu.
3. Press the [MENU] key to close the MENU.
4. Press the keys in the following order:
[ENTER] > [ENTER] > [Left arrow] > [ENTER]
The message “Do you want to enter the Service Mode? [Yes] [No]” appears.
Select [Yes] and press the [ENTER] key.
How to exit the service mode
Perform the key operations in accordance with step 4.
The message “Do you want to return to the User Mode?  [Yes] [No]” appears.
Select [Yes] and press the [ENTER] key.
V COM Adjustment
1. Enter the service mode.
2. Select the menus in the following order: Device > Other > 07 Other/Pattern Enb. Then, set the value to “1”.
3. Select the menus in the following order: Device > Panel Driver > 04 P.Drv/V Common R, and adjust the value so that the flicker is the minimum.
4. In the same way of step 2, adjust the value for minimal flicker on the menu 05 P.Drv/V Common G and 06 P.Drv/V Common B.
5. Select the menus in the following order: Device > Save To Memory. Select [Yes], and press the [ENTER] key.
6. Select the menus in the following order: Installation > Image Flip and set it to either “V”, “H” or VHLR.
7. Perform the steps 3 to 5.
8. Select the menus in the following order: Installation > Image Flip and set back to “Off”.
Angle Detect Sensor Adjustment
1. Enter the service mode.
2. Select the menus in the following order: Device > Other > 20 Other/X Tilt.
3. Place the unit on the table parallel to the top side of the unit.
4. Save the memory this value of the X TILT in 22 Other/X Tilt C0.
5. Tilt the unit to a 90-degree upward direction.
6. Save the memory this value of the X TILT in 23 Other/X Tilt C1.
7. Tilt the unit to a 90-degree downward direction.
8. Save the memory this value of the X TILT in 24 Other/X Tilt C2.
9. Select the menus in the following order: Device > Save To Memory. Select [Yes], and press the [ENTER] key.
White Balance Adjustment
Preparation before adjustment
1. Input the XGA 60 Hz 100% flat field signal to the INPUT A connector and allow the warm-up of ten minutes aging at a minimum.
2. Enter the Service Mode.
3. Enter the menu: Function > Lamp Mode and set it to High.
4. Input the 10step computer signal to the INPUT A, then perform the visual check the chromaticity of each step.
5. Input the 10step video signal to the VIDEO IN, then perform the visual check the chromaticity of each step.
6. When the chromaticity varies widely, perform the adjustment below.
7. Enter the menu: Function > Lamp Mode and set it to Standard.
8. Perform the steps 4 and 5 to check visually the chromaticity of each step.
9. When the chromaticity varies widely, perform the adjustment below.
Note:
Perform the white balance adjustment in sequence.
INPUT A color temperature: high
1. Enter the service mode.
2. Select the menus: Device > W/B > High.
3. Input the 80% flat field computer signal to the INPUT A.
4. Adjust the GAIN R and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.284, 0.298
5. Change the input signal to the 20% flat field computer signal.
6. Adjust the BIAS R and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.284, 0.298
7. Repeat steps 3 to 6 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
8. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
9. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 3 to 8 and adjust.
INPUT A color temperature: middle
1. Select the menus in service mode: Device > W/B > Middle.
2. Input the 80% flat field computer signal to the INPUT A.
3. Adjust the GAIN R and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.294, 0.310
4. Change the input signal to the 20% flat field computer signal.
5. Adjust the BIAS R and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.294, 0.310
6. Repeat steps 2 to 5 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
7. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
8. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 2 to 7 and adjust.
INPUT A color temperature: low
1. Select the menus in service mode: Device > W/B > Low.
2. Input the 80% flat field computer signal to the INPUT A.
3. Adjust the GAIN B and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.313, 0.329
4. Change the input signal to the 20% flat field computer signal.
5. Adjust the BIAS B and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.313, 0.329
6. Repeat steps 2 to 5 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
7. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
8. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 2 to 7 and adjust.
VIDEO IN color temperature: high
1. Change the input channel to VIDEO, then input video signal to VIDEO IN.
2. Select the menus in service mode: Device > W/B > High.
3. Copy the adjusted values of GAIN R/B/G and BIAS R/B/G in “INPUT A color temperature: high” to each item.
4. Input the 10step video signal to the VIDEO IN, then perform the visual check the chromaticity of each step.
5. When the chromaticity varies widely, perform the adjustment below. If not, proceed to next section.
6. Change the input signal to the 80% flat field video signal.
7. Adjust the GAIN R and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.284, 0.298
8. Change the input signal to the20% flat field video signal.
9. Adjust the BIAS R and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.284, 0.298
10. Repeat steps 6 to 9 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
11. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
12. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 6 to 11 and adjust.
VIDEO IN color temperature: middle
1. Select the menus in service mode: Device > W/B > Middle.
2. Copy the adjusted values of GAIN R/B/G and BIAS R/B/G in “INPUT A color temperature: middle” to each item.
3. Input the 10step video signal to the VIDEO IN, then perform the visual check the chromaticity of each step.
4. When the chromaticity varies widely, perform the adjustment below. If not, proceed to next section.
5. Change the input signal to the 80% flat field video signal.
6. Adjust the GAIN R and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.294, 0.310
7. Change the input signal to the 20% flat field video signal.
8. Adjust the BIAS R and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.294, 0.310
9. Repeat steps 5 to 8 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
10. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
11. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 5 to 10 and adjust.
VIDEO IN color temperature: low
1. Select the menus in service mode: Device > W/B > Low.
2. Copy the adjusted values of GAIN R/B/G and BIAS R/B/G in “INPUT A color temperature: low” to each item.
3. Input the 10step video signal to the VIDEO IN, then perform the visual check the chromaticity of each step.
4. When the chromaticity varies widely, perform the adjustment below. If not, finish the adjustment.
5. Change the input signal to the 80% flat field video signal.
6. Adjust the GAIN B and GAIN G until the target chromaticity.
Target chromaticity (x, y): 0.313, 0.329
7. Change the input signal to the 20% flat field video signal.
8. Adjust the BIAS B and BIAS G until the target chromaticity.
Target chromaticity (x, y): 0.313, 0.329
9. Repeat steps 5 to 8 until the chromaticity (x +/-0.002, y +/-0.002) with reference to the target chromaticity (x, y).
10. Select the menus: Device > Save To Memory, then select [Yes] and press the [ENTER] key.
11. For each lamp mode “High”, “Middle”, “Low”, repeat the steps 5 to 10 and adjust.
Mechanical Adjustment
Polarizer Adjustment
Perform this adjustment in a dark place.
# Be sure to adjust the in-polarizer assembly in the order of (G), (R) and (B).
# Perform this adjustment when removing any one of the in-polarizer assembly (R)/(G)/(B).
1. Remove the following parts in the following order.
Front panel assembly > Upper case assembly > Side panel (R) assembly > Main board
2. Connect the extension board and extension cables as shown in the figure.
3. Connect the power cord.
4. Turn on the power and project the image on the screen.
Note:Perform this without the input signal.
5. Set the status to “OFF” and the background to “Black” in the menu.
6. Loosen the screw of the in-polarizer assembly (G).
7. Move the polarization panel holder from side to side, and then tighten the screw at the position where the image on the screen becomes the darkest.
8. Loosen the screw of the in-polarizer assembly (R), then perform step 7.
9. Loosen the screw of the in-polarizer assembly (B), then perform step 7.
10. Set the status to “ON” and the background to “Blue” in the menu.
11. Turn off the power.
12. Assemble the unit in the reverse order of steps 1 to 2