Zenith D52WLCD Series Service Manual page 43

36. GLMAX : Setting up the MAX Level of G
37. BLMIN : Setting up the MINIUM Level of B --- Set under
200
38. BLMID2 : Setting up the MIDDLE 2nd Level of B ---
Middle level when 3coefficient
39. BLMID1 : Setting up the MIDDLE 1st Level of B --- Max
level when 3coefficient
40. BLMAX : Setting up the MAX Level of B
41. HVSCAN : Setting up the scan direction while adjusting
unifomity - Do not adjust
42. TestMode : uniformity adjustment test - Do not adjust
(4) Adjustment Sequence
1) Adjust the screen coordinates as shown below.
0 1 2 3 . . . . . . . . . . . . x x . . . . . . . . . . 1 5 1 6
1
.
y y
.
11
1 2
(Fig. 5) Screen divisio diagram for uniformity adjustment
2) Output the VDP TEST PATTERN signal correspond to the
Max value.
Read the white coordinates and communicate 3 line with
ET7050 IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color unifor-
mity of max point.
At this time, make sure that deviation is +5~-5% and stan-
dard is color coordinate of center.
3) Output the VDP TEST PATTERN signal correspond to the
MID value.
Read the white coordinates and communicate 3 line with
ET7050 IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color unifor-
mity of mid point.
At this time, make sure that deviation is +5~-5% and stan-
dard is color coordinate of center.
4) Output the VDP TEST PATTERN signal correspond to the
MIN value.
Read the white coordinate and communicate with ET7050
IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color unifor-
mity of miner point.
At this time, make sure that deviation is +5~-5% and stan-
dard is color coordinate of center.
5) White the miner, middle, maximum data for each point to
confront to each MICOM address.
D52WLCD
ADJUSTMENTS
5-6. Brightness Adjusment of Main/Sub screen
Operate this adjustment when the brightness of Main/Sub
screen is different.
(1) Receive RF 06Ch. to Main/Sub screen in twin picture.
(2) Let the screen clearly.
(3) Check the "US06CH" with naked eyes in 06Ch. pattern
and if there is difference, adjust like this.
- The field and the letters are distinguished.
(4) Adjusting Sub screen
1) Press the "adj" key on R/C for adjustment to select 1.
VPC3230 main.
2) Adjust to 17. Luma Contrast of adjustment item with +/-
key. (initial value 48)
(5) Adjusting Main screen
1) Press the "adj" key on R/C for adjustment to select 1.
VPC3230 sub.
2) Adjust to 17. Luma Contrast of adjustment item with +/-
key. (initial value 48)
* Ask for repairs when the data value is changed over !5.
5-7. Lamp Replace
Use it when the Lamp time is '0'.
Press the IN-START key on SVC remote control for adjust-
ment to select Lamp replace and adjust with volume key.
43
ADJUSTMENTS