Sharp LC-19D1EBK (serv.man4) Service Manual ▷ View online
LC-19D1E/S-BK/WH
3 – 29
M2-26
DVP-M2 26
1
AV TH A
27
Polygonal line adjustment For AV
2
AV TH B
236
Polygonal line adjustment For AV
3
AV CONT A
95
Polygonal line adjustment For AV
4
AV CONT B
140
Polygonal line adjustment For AV
5
AV CONT C
43
Polygonal line adjustment For AV
6
PC TH A
255
Polygonal line adjustment For PC
7
PC TH B
255
Polygonal line adjustment For PC
8
PC CONT A
128
Polygonal line adjustment For PC
9
PC CONT B
128
Polygonal line adjustment For PC
10
PC CONT C
128
Polygonal line adjustment For PC
M2-27
DVP-M2 27
1
AUTO GAIN
OK
2
AD R GAIN
-16
SCART input Red GAIN adjustment
3
AD G GAIN
0
SCART input Green GAIN adjustment
4
AD B GAIN
16
SCART input Blue GAIN adjustment
5
AD R OFFSET
+1
SCART input Red OFFSET adjustment
6
AD G OFFSET
0
SCART input Green OFFSET adjustment
7
AD B OFFSET
-1
SCART input Blue OFFSET adjustment
8
SCART CONT
196
SCART CONTRAST setting
9
SCART BRIGHT
540
SCART BRIGHT setting
10
SCART COLOR
170
SCART COLOR setting
11
SCART TINT
128
SCART TINT setting
12
SCART SHARP V OVER
200
SCART V picture quality setting
13
SCART SHARP V UNDER
300
SCART V picture quality setting
14
SCART SHARP H1 OVER
200
SCART H picture quality setting 1
15
SCART SHARP H1 UNDER
200
SCART H picture quality setting 1
16
SCART SHARP H2 OVER
200
SCART H picture quality setting 2
17
SCART SHARP H2 UNDER
300
SCART H picture quality setting 2
18
RGTAR GGTAR BGTAR
40 40 40
SCART input Red/Green/Blue GAIN adjustment target level
19
RGCAL GGCAL BGCAL
00 00 00
Display for Y level, Chroma calculation level
20
ROCAL GOCAL BOCAL
00 00 00
Display for Y level of clamping area, white level calculated level
21
RHPOS GHPOS BHPOS
0000 0000 0000
Data acquisition Point H coordinates (Cr)(Y)(Cb)
22
RVPOS GVPOS BVPOS
0000 0000 0000
Data acquisition Point H coordinates (Cr)(Y)(Cb)
OH
OTHERS1
1
L ERROR WAIT
15s
Lamp error detection WAIT time
2
L ERROR H TIME
1.0s
Lamp error detection time
3
TV AUTO GAIN
OFF
Auto Gain setting when TV mode
4
PWM FREQ
160
Dimming control frequency setting (Hz)
5
PWM DUTY
100
Dimming duty setting (Hz)
6
OPC THRESHOLD
24
Brightness sensor shutdown mode
→ Input level threshold when
operation mode shifts
7
COMP SYSTEM
AUTO
The component-signal selecting within an adjustment process
8
COM BIAS
126
Common bias adjustment
9
REMOCON CODE
000
Remocon code SHARP
Page
Line
Item
Description
Remarks (adjustment detail, etc.)
LC-19D1E/S-BK/WH
3 – 30
7. Video signal adjustment procedure
1. AD-Converter Level Adjustment
1) Preparation
* Prepare signal generator LEADER LT448.
2) 1080i input
a) The method of a 1080i 75% COLOUR BAR signal input
* Signal name: Select COLOUR BAR
Please use the 3rd of three kinds of COLOUR BAR button which is compatible with LT446. (Press a button 3 times.)
* Turn a rotary switch then select 02.
Preset value: 02: 1080i/59.94 (30sF) H: 33.72kHz V: 29.97Hz
* input 1080i input signal into the component input terminal (EXT3) of the set.
b) The method of adjustment
* Refer to 4th item of chapter 3 and go to adjustment process mode.
* In the adjustment process mode, “AUTO GAIN-OFFSET” in “DVP3 (M2-HD)” of DVP the rayer page 3 is selected and the setting is
turned “ON” with a right and left key.
3) 480i input
a) The method of a 480i 75% COLOUR BAR signal input
* Signal name: Select COLOUR BAR
Please use the 3rd of three kinds of COLOUR BAR button which is compatible with LT446. (Press a button 3 times.)
* Turn a rotary switch then select 15.
Preset value: 15: 480i/60 H: 15.73kHz V: 29.97Hz
* input 480i input signal into the component input terminal (EXT3) of the set.
b) The method of adjustment
* Refer to 4th item of chapter 3 and go to adjustment process mode.
* In the adjustment process mode, “AUTO GAIN-OFFSET” in “DVP4 (M2-SD)” of DVP the rayer page 4 is selected and the setting is
turned “ON” with a right and left key.
4) PC XGA Input
a) The method of a XGA 75% COLOUR BAR signal input (RGB)
* Signal name: Select COLOUR BAR, set to SATURATION 75%
Please use the signal which is changeable SATURATION in three kinds of COLOUR BAR button.
* Turn a rotary switch then select 28.
Preset value: 28: XGA H: 48.36kHz V: 60.00Hz
Make sure to turn off SYNC setting
* Input PC XGA input signal into the D-sub15 terminal (EXT5) of the set.
b) The method of adjustment
* Go to adjustment process mode with reference to the 4th item of chapter 3.
* In the adjustment process mode, “AUTO GAIN-OFFSET” in “DVP5 (M2-PC)” of DVP the rayer page 5 is selected and the setting is
turned “ON” with a right and left key.
5) SCART RGB input
a) PAL 75% color bar signal input
Name of the used device: FLUKE 54200
Signal name: COLOR BAR
* Long press the COLOR BAR key to select COL_75_0.
b) Set AUTO GAIN-OFFSET on page 27 (SCART) of the adjust process DVP-M2 hierarchy to RUN.
* During adjustment, the whole screen becomes greenish. This is normal.
LC-19D1E/S-BK/WH
3 – 31
2. TAMP adjustment
1) Receive PAL Standard colour bar signal (E-12ch).
2) Display the DVP layer page 1 of the adjustment process (DVP1)
When reading values [TAMP 1L] [TAMP 1H] in this page are not in the value of the following table, select [TAMP ALL] in the same page (turn to
OFF
OFF
→ON), and adjust the maximum value of [YDATA] to become a value of the following table. (101-105)
* Keep in mind that a preset value is different depending on the model.
3) When [TAMP ALL] turns “ON”, adjustment of [PAL TAMP1] is completed, then the value of [NTSC TAMP1] and [SECAM TAMP1] are set auto-
matically.
(NTSC is the value of PAL -7, SECAM is the same as PAL.)
Reference
Screen of the DVP layer page 1 of the adjustment process menu
3. COM BIAS Adjustment
Display [OTHERS] of the adjustment process menu, then select [COM BIAS].
Operate a right /left cursor key and adjust so that the flicker in the pattern of the following figure may serve as the minimum.
Model
LC-19D1E
Preset value
101 ~ 105
D V P 1
T A M P1 L
1 0 1
Y D A T A
1 0 3
adjusting
T A M P1 H
1 0 5
T A M P A L L
OFF
select to ON
N T S C T A M P 1
8 9
P A L T A M P 1
9 6
S E C A M T A M P 1
9 6
LC-19D1E/S-BK/WH
3 – 32
8. White Balance Adjustment
1. [Preparation of the adjustment]
1) “Luminance meter reference device”
Minolta CA-210
2) Conditions of the set for adjustment and inspection
Modulated light: MAX (+16)
3) A set needs to be ageing for 30 minutes or more.
4) Set a luminance meter to middle of the screen.
2. [Method of the adjustment]
1) In the adjustment process mode, Display the screen of “DVP2-1” on the DVP layer page 1.
It is confirmed that IN6 and IN5 are displayed in default value IN6=204 and IN5=102.
2) White balance adjustment adjusts the adjustment value of point 6 and point 5 R/G/B in the layer page 2 “DVP2-2” of DVP. Point 4 to Point 1 are
not adjusted this time.
3) In the adjustment process mode, Display the screen of “DVP2-2” on the DVP layer page 2.
4) Set standard value G6 of point 6 in “816”.
5) Read the value of the luminance meter.
6) Make R6 and B6 variable by 4 units to the negative direction then adjust, so that the values of the luminance meter approach x=0.272 and y
=0.277.
7) Set standard value G5 of point 5 in “408”.
8) Read the value of the luminance meter.
9) Make R5 and B5 variable by 4 units in the negative direction then adjust, so that the values of the luminance meter approach x=0.272 and y
=0.277.
3. [Adjustment reference standard value]
[Adjustment
⋅ Inspection spec]
IN 1
0
IN 2
0
IN 3
0
IN 4
0
IN 5
102
IN 6
204
Point1 standard value
None
Point2 standard value
None
Point3 standard value
None
Point4 standard value
None
Point5 standard value
x=0.272, y=0.277 (408/1023Gradation)
Point6 standard value
x=0.272, y=0.277 (816/1023Gradation)
Adjustment spec
±0.002
Inspection spec
±0.004
(point 5)
Adjustment spec
±0.001
Inspection spec
±0.004
(point 6)
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