KLV-23HR1 - Sony TV Service Manual (repair manual). Page 11

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KLV-23HR1 (UC)      2-2
4. Adjust value of the AD_OFFSET_D3_PR as follows with read-
ing 2 registers of sony_input_g_cr_min
and sony_input_g_cr_max from the ECS.
5. Adjust value of the AD_OFFSET_D3_PB as follows with read-
ing 2 registers of
sony_input_b_cb_min and sony_input_ b_cb _max from the
ECS.
6. Input All white l (100 IRE) of [1080i :D3] into the component
input.
7. Adjust value of the AD_GAIN_D3_Y as follows with reading
2 registers of sony_input_r_y_min and
sony_input_r_y_max from the ECS.
8. Input All red (50 IRE) of [1080i :D3] into the component in-
put.
9. Adjust value of the AD_GAIN_D3_PR as follows with read-
ing 2 registers of sony_input_g_cr_min
and sony_input_ g_cr _max from the ECS.
10. Input All blue (50 IRE) of [1080i :D3] into the component
input.
11. Adjust value of the AD_GAIN_D3_PB as follows with read-
ing 2 registers of sony_input_b_cb_min
and sony_input_ b_cb _max from the ECS.
12 Repeat step 3-2 to 3-11 until the detection set value in step 3-
3 to 3-5, 3-7, 3-9 and 3-11 above are obtained.
13. Copy the adjusted value in register for [480p :D2] and [720p
:D4] .
14. Perform the Service Save.
2-4. AD calibration adjustment of [480p :D2]
       input
1. Set the vgport_sel to 1 (YCbCr determination mode) of hard-
ware register.
Caution: This item is set 0 automatically when powered on.
2. Input All black signal (0 IRE) of [480p :D2] into the compo-
nent input.
3. Adjust value of the AD_OFFSET_D2_Y as follows with read-
ing 2 registers of sony_input_r_y_min
and sony_input_r_y_max from the ECS.
4. Adjust value of the AD_OFFSET_D2_PR as follows with read-
ing 2 registers of sony_input_g_cr_min
and sony_input_g_cr_max from the ECS.
5. Adjust value of the AD_OFFSET_D2_PB as follows with read-
ing 2 registers of
sony_input_b_cb_min and sony_input_ b_cb _max from the
ECS.
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_g_cr_min+sony_input_g_cr_max
128 ± 1        AD_OFFSET_D3_PR
2
sony_input_g_cr_min
128  -5
      +0
sony_input_g_cr_max
128  
-0
      +5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_b_cb_min+sony_input_b_cb_max
128 ± 1        AD_OFFSET_D3_PB
2
sony_input_b_cb_min
128  -5
      +0
sony_input_b_cb_max
128  
-0
      +5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_r_y_min+sony_input_r_y_max
178 ± 1         AD_OFFSET_D3_Y
2
sony_input_r_y_min
178  -5
      +0
sony_input_r_y_max
178  
-0
      +5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_g_cr_min+sony_input_g_cr_max
230 ± 1        AD_OFFSET_D3_PR
2
sony_input_g_cr_min
230  -5
      +0
sony_input_g_cr_max
230  
-0
      +5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_b_cb_min+sony_input_b_cb_max
230 ± 1        AD_OFFSET_D3_PB
2
sony_input_b_cb_min
230  -5
      +0
sony_input_b_cb_max
230  
-0
      +5
AD_OFFSET_D2_Y
AD_OFFSET_D3_Y
AD_OFFSET_D4_Y
AD_OFFSET_D2_PB
AD_OFFSET_D3_ PB
AD_OFFSET_D4_ PB
AD_OFFSET_D2_PR
AD_OFFSET_D3_ PR
AD_OFFSET_D4_ PR
AD_GAIN_D2_Y
AD_ GAIN _D3_Y
AD_ GAIN_D4_Y
AD_ GAIN _D2_PB
AD_ GAIN _D3_ PB
AD_ GAIN_D4_ PB
AD_ GAIN _D2_ PR
AD_ GAIN _D3_ PR
AD_ GAIN _D4_ PR
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_r_y_min+sony_input_r_y_max
16 ± 2         AD_OFFSET_D2_Y
2
sony_input_r_y_min
16  -5
     +0
sony_input_r_y_max
16  
-0
     
+5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_g_cr_min+sony_input_g_cr_max
128 ± 1        AD_OFFSET_D2_PR
2
sony_input_g_cr_min
128  -5
      +0
sony_input_g_cr_max
128  
-0
      +5
Reference
 Adjustment
Adjustment
item
condition
register
  sony_input_b_cb_min+sony_input_b_cb_max
128 ± 1        AD_OFFSET_D2_PB
2
sony_input_b_cb_min
128  -5
      +0
sony_input_b_cb_max
128  
-0
      +5
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