Read Sony KLV-23HR1 Service Manual online
KLV-23HR1 (UC) 2-3
6. Input All white l (100 IRE) of [480p :D2] 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 [480p :D2] into the component input.
9. Adjust value of the AD_GAIN_D2_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 [480p :D2] into the component
input.
11. Adjust value of the AD_GAIN_D2_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 2 to 11 until the detection set value in step 3 to 5,
7, 9 and 11 above are obtained.
13. Perform the Service Save.
2-5. AD calibration adjustment of [720 :D4]
input
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 [720p :D4] into the compo-
nent input.
3. Adjust value of the AD_OFFSET_D4_Y as follows with read-
ing 2 registers of sony_input_r_y_min
and sony_input_r_y_max from the ECS.
Reference
Adjustment
Adjustment
item
condition
register
sony_input_g_cr_min+sony_input_g_cr_max
230 ± 1 AD_OFFSET_D2_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_r_y_min+sony_input_r_y_max
178 ± 1 AD_OFFSET_D2_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_b_cb_min+sony_input_b_cb_max
230 ± 1 AD_OFFSET_D2_PB
2
sony_input_b_cb_min
230 -5
+0
sony_input_b_cb_max
230
-0
+5
4. Adjust value of the AD_OFFSET_D4_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_D4_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 [720p :D4] into the component
input.
7. Adjust value of the AD_GAIN_D4_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 [720p :D4] into the component input.
9. Adjust value of the AD_GAIN_D4_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 [720p :D4] into the component
input.
Reference
Adjustment
Adjustment
item
condition
register
sony_input_r_y_min+sony_input_r_y_max
16 ± 2 AD_OFFSET_D4_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_D4_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_D4_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_g_cr_min+sony_input_g_cr_max
230 ± 1 AD_OFFSET_D4_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_r_y_min+sony_input_r_y_max
178 ± 2 AD_OFFSET_D4_Y
2
sony_input_r_y_min
178 -5
+0
sony_input_r_y_max
178
-0
+5
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