Friday, June 03, 2016

Sony LCD projector - Sony VPL-HS50 - VPL-HS51 – How to enter to service mode – How to adjust VCOM – White balance adjustment – Fan voltage adjustment – Projector repair and service

Category: Projector Repair and Service 

Contents of this article 

  • How to enter to service mode 
  • How to adjust VCOM
  • How to adjust the fan voltages 

Sony VPL-HS50 - VPL-HS51

Service Mode Setting
1. Press the “Setup” key on the MENU.
The “Setup” menu is displayed.
2. Set the “Status” item to “On”.
3. Exit the menu.
4. Press the keys in the following order:
“ENTER” >  “ENTER” >  “LEFT” > “ENTER”
5. The message “Do you wish to enter into the
FACTORY MODE? Yes: UP No: DOWN ” will be displayed.
6. Select “Yes: UP”.
NOTE
When leaving the FACTORY MODE, perform item 3.
“Do you wish to return to the USER MODE? Yes: UP No: DOWN
” will be displayed. Select “Yes: DOWN”.
V COM Adjustment
1. Input the green-only XGA 1 Lime ON/OFF signal to INPUT-A, and set the CONTRAST to 70.
2. Set the screen to G VCOM adjustment of “Device Adjust.”
3. Adjust the G VCOM so that the flicker on the screen is minimum.
4. Change the input signal to the red-only and blue-only
1 line ON/OFF signal respectively and adjust R VCOM and B VCOM respectively so that the flicker becomes minimum as described in step 3.
5. Save the value adjusted.
6. Set the “Image Flip” to either “V” or “HV”.
7. Input the R/G/B value adjusted as above step 5.
8. Save the value adjusted.
9. Set the “Image Flip” to “OFF”.
White Balance Adjustment 
Computer
Preparation
1. Set the unit from the menu as follows.
Picture Mode: Cinema
Adjust Picture
Contrast: 80
Brightness: 50
Gamma Correction: OFF
Cinema Black Pro:
Iris Control: OFF
Lamp Control: Low
2. Set each mode of “Color Temp:” as follows.
Gain: 128
Bias: 128
3. Set INPUT-A Signal Sel. to “Computer”.
Adjustment
1. Middle
1. Set “Color Temp:” to Middle.
2. Input WXGA 80IRE Window white (3 colors: RGB) to INPUT-A and adjust the GAIN of G of white balance so that the chromaticity (y80) is within specification.
x80: 0.294 ±0.002
y80: 0.310 ±0.003
Then, set the reference color as follows and adjust the GAIN of colors other than the reference color of white balance so that the chromaticity (x80 and y80) is within specification.
x80 > 0.294: B reference
y80 < 0.294: R reference
3. Input WXGA 20IRE Window white (3 colors: RGB) to INPUT-A and adjust the BIAS of colors other than G of white balance so that the chromaticity (x20 and
y20) is within specification.
x20: 0.294 ±0.002
y20: 0.310 ±0.003
4. Input WXGA 80IRE Window white (3 colors: RGB) to INPUT-A and adjust the GAIN of colors other than the reference color of white balance so that the chromaticity (x80 and y80) is within specification.
5. Repeat steps 3 and 4, and adjust each GAIN and BIAS of RGB so that x and y are within the following specification.
x: 0.294 ±0.002
y: 0.310 ±0.003
6. Save the adjustment values.
2. High
1. Set “Color Temp:” to High.
2. Input WXGA 80IRE Window white (3 colors: RGB) to INPUT-A and adjust the GAIN of G of white balance so that the chromaticity (y80) is within specification.
x80: 0.284 ±0.002
y80: 0.298 ±0.003
Then, set the reference color as follows and adjust the GAIN of colors other than the reference color of white balance so that the chromaticity (x80 and y80) is within specification.
x80 > 0.294: B reference
y80 < 0.294: R reference
3. Input WXGA 20IRE Window white (3 colors: RGB) to INPUT-A and adjust the BIAS of colors other than G of white balance so that the chromaticity (x20 and y20) is within specification.
x20: 0.294 ±0.002
y20: 0.310 ±0.003
4. Input WXGA 80IRE Window white (3 colors: RGB) to INPUT-A and adjust the GAIN of colors other than the reference color of white balance so that the chromaticity (x80 and y80) is within specification.
5. Repeat steps 3 and 4, and adjust each GAIN and BIAS of RGB so that x and y are within the following specification.
x: 0.284 ±0.002
y: 0.298 ±0.003
6. Save the adjustment values.
3. Low
1. Set “Color Temp:” to Low.
2. Input WXGA 20IRE Window white (3 colors: RGB) to INPUT-A and adjust the BIAS of colors other than G of white balance so that the chromaticity (x20 and y20) is within specification.
x20: 0.313 ±0.002
y20: 0.329 ±0.003
3. Input WXGA 80IRE Window white (3 colors: RGB) to INPUT-A and adjust the GAIN of colors other than R of white balance so that the chromaticity (x80 and y80) is within specification.
4. Repeat steps 2 and 3, and adjust each GAIN and BIAS of RGB so that x and y are within the following specification.
x: 0.313 ±0.002
y: 0.329 ±0.003
5. Save the adjustment values.
4. Custom1/2/3
1. Copy the values adjusted in “1. Middle”,”2. High” and
“3. Low” as follows.
Custom1: High
Custom2: Middle
Custom3: Low
2. Save the adjustment values.
Fan Voltage Adjustment
Preparation
1. Enter “27:Fan/Reg Adj.Cont” in Other of Device Adjust.
2. Change the value of “27:Fan/Reg Adj.Cont” from 0 to 1.
Adjustment
1. Maximum voltage adjustment for fan 1 drive
1. Enter “28: Fan1/Reg Max” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1907 on the C board is within the following specification.
Specification: 12.0 ±0.1 V
2. Minimum voltage adjustment for fan 1 drive
1. Enter “29: Fan1/Reg Min” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1907 on the C board is within the following specification.
Specification: 4.55 ±0.05 V
3. Maximum voltage adjustment for fan 4 drive
1. Enter “30: Fan2/Reg Max” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1910 on the C board is within the following specification.
Specification: 12.0 ±0.1 V
4. Maximum voltage adjustment for fan 3 drive
1. Adjust the voltage so that pin 1 of the connector CN1909 on the C board is within the following specification.
Specification: 12.0 ±0.1 V
5. Minimum voltage adjustment for fan 4 drive
1. Enter “31: Fan2/Reg Min” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1910 on the C board is within the following specification.
Specification: 6.2 ±0.1 V
6. Minimum voltage adjustment for fan 3 drive
1. Adjust the voltage so that pin 1 of the connector CN1909 on the C board is within the following specification.
Specification: 6.2 ±0.1 V
7. Maximum voltage adjustment for fan 5 drive
1. Enter “32: Fan3/Reg Max” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1911 on the C board is within the following specification.
Specification: 12.0 ±0.1 V
8. Minimum voltage adjustment for fan 5 drive
1. Enter “33: Fan3/Reg Max” in Other of Device Adjust.
2. Adjust the voltage so that pin 1 of the connector CN1911 on the C board is within the following specification.
Specification: 4.55 ±0.05 V
Procedure after adjustment
1. Change the value of “27:Fan/Reg Adj.Cont” from 1 to 0.
2. Save the value in the memory.
NVM (Non-Voltible-Memory)
NVM access error
The Lamp and Temp LEDs blink at high speed (at intervals of 0.5 seconds).
Replace the parts or C board because the IIC communication device may be defective.
NVM data error
The Power/Standby LED blinks at high speed (at intervals of 0.5 seconds).
1. Replace the C board because the data of IC1804 has been destroyed.
2. Replace IC403 and IC1807 on the C board before the
C board is replaced and mount them on a (new) C board.
3. Perform the iris adjustment in step 3) .
4. Perform the VCOM adjustment
5. Perform the W/B adjustment when the W/B state is remarkably bad.