SONY KLV-46S200A - KLV-40S200A SERVICE MODE AND SMPS POWER SUPPLY CIRCUIT

SONY KLV-46S200A - KLV-40S200A SERVICE MODE AND SMPS POWER SUPPLY CIRCUIT

HOW TO ENTER TO SERVICE MODE AND SMPS POWER SUPPLY  CIRCUIT 

SERVICE MODE

1. Turn on the power to the TV set and enter into the stand-by mode.
2. Press the following sequence of buttons on the Remote Commander

ON SCREEN DISPLAY KEY i+   > 5 > VOLUME + > POWER

3. Move to the relevant command using the up or down arrow buttons on the remote commander.
4. Press the right arrow button to enter into the required menu item.
5. Press the ‘Menu’ button on the remote commander to quit the Service Mode when all adjustments have been completed

Gamma Adjustment

1. Send ECS_ADJUST_LEVEL_SETTING_INIT command.
2. Ensure COL_MATRIX_INDEX=15.
3. Ensure hreg p1_d_p_26=0 and hreg p1_d_p_28=0.
4. Ensure G_GAMMA_IDX_OFST=15.
5. Ensure DYNAMIC_EN=0.

Set up Trident internal SG and brightness measurement

1. Ensure TEST_PATTEN_ON=1.
2. Ensure TEST_G_LEVEL=204.
3. Ensure TEST_R_LEVEL=0.
4. Ensure TEST_B_LEVEL=0.
5. Measure brightness A.
6. Ensure TEST_G_LEVEL=102.
7. Ensure TEST_R_LEVEL=0.
8. Ensure TEST_B_LEVEL=0.
9. Measure brightness B.
10. Set up G_GAMMA_OFST_01=brightness B/brightness
A*10000. The result is written to G_GAMMA_OFST_01.
11. Send Gamma_Tbl_Search_1 command.
12. Ensure TEST_G_LEVEL=153.
13. Ensure TEST_R_LEVEL=0.
14. Ensure TEST_B_LEVEL=0.
15. Measure brightness C.
16. Set up G_GAMMA_OFST_02=brightness C/brightness
A*10000. The result is written to G_GAMMA_OFST_02.
17. Send Gamma_Tbl_Search_2 command.
18. Save set up value in NVM in register G_GAM_IDX_OFST.

* Incase of 26V need reduce 2 from original data.

White Balance Adjustment

Set up mode for White Balance Adjustment

1. Send ECS_ADJUST_LEVEL_SETTING_INIT command.
2. Ensure COL_MATRIX_INDEX=15.
3. Ensure hreg p1_d_p_26=0 and hreg p1_d_p_28=0.
4. Ensure DYNAMIC_EN=0.

White Balance of colour temperature "High"

1. Set up COLOR_TEMP=0.
2. Set up GAMMA_OFF=15.
3. R_GAMMA_OFST_01=128
R_GAMMA_OFST_02=128
R_GAMMA_OFST_03=128
R_GAMMA_OFST_04=128
B_GAMMA_OFST_01=128
B_GAMMA_OFST_02=128
B_GAMMA_OFST_03=128
Set up B_GAMMA_OFST_04=128.
4. Set up ìWaitî.
5. Set up the correct values for 20IRE for TEST_R_LEVEL, TEST_G_LEVEL and TEST_B_LEVEL.

6. Adjust R_GAMMA_OFST_01 and B_GAMMA_OFST_01 chroma values so that they are within tolerance

7. Set up the correct values for 40IRE for TEST_R_LEVEL, TEST_G_LEVEL and TEST_B_LEVEL

8. Adjust R_GAMMA_OFST_02 and B_GAMMA_OFST_02 chroma values so that they are within tolerance

9. Set up the correct values for 60IRE for TEST_R_LEVEL, TEST_G_LEVEL and TEST_B_LEVEL

10. Adjust R_GAMMA_OFST_03 and B_GAMMA_OFST_03 chroma values so that they are within tolerance in the table below.

11. Set up the correct values for 80IRE for TEST_R_LEVEL, TEST_G_LEVEL and TEST_B_LEVEL.

12. Adjust R_GAMMA_OFST_04 and B_GAMMA_OFST_04 chroma values so that they are within tolerance

13. Write R_GAMMA_OFST_01~R_GAMMA_OFST_04 and B_GAMMA_OFST_01~B_GAMMA_OFST_04 in the NVM.
14. Write R_GAMMA_OFST_04~R_GAMMA_OFST_05 and B_GAMMA_OFST_04~B_GAMMA_OFST_05 in the NVM.
15. Set up TEST_PATTEN_ON=0.
16. Set up COL_MATRIX_INDEX=30.
17. Set up hreg_p1_d_p_26=3.
18. Set up hreg_p1_d_p_28=3.

19. Set up DYNAMIC_EN=0xffff
20. Set up COLOR_TEMP=1.
21. Write the correct values for R_DRV, B_DRV, R_BKG and B_BKG

22. Send ECS COLOR_SAVE command.
23. Set up COLOR_TEMP=2.
24. Write the correct values for R_DRV, B_DRV, R_BKG and B_BKG

25. Send ECS COLOR_SAVE command.
26. Set up COLOR_TEMP=3.
27. Write the correct values for R_DRV, B_DRV, R_BKG and B_BKG

28. Send ECS COLOR_SAVE command.
29. Switch the TV set OFF and then ON again to retain adjustment
values.

NOTE 

When replacing the panel please reset the gamma and white balance before performing W/B

POWER SUPPLY CIRCUIT