Sharp LC-37GD9EK (serv.man8) Service Manual ▷ View online
16
LC-26GA5E
LC-32GA5E
LC-32GD9E
LC-37GD9E
3. Adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
Page Line Item
Description
Remarks (Adjustment detail, etc.)
[INFO]
1/11
1
2
3
4
5
6
7
Main Version
Dev Version
Dev Loader Version
PIC Version
TEMP SENSOR
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
1.xxx (xx/xx/xxxx) x
x.xxx
x.x
xx.xx
xxx
[X]0
xxHxxM (X5)
Main microprocessor version (VCTP)
Digital Module version
Digital Module loader version
PIC version
Temp inside cabinet (near panel)
Last status which cause standby
Error standby cause
Total operating time before error
[INIT]
2/11
1
2
3
4
5
6
7
8
9
10
Factory Init
Inch Setting
PUBLIC MODE
Center Acutime
RESET
Backlight Acutime
RESET
Picture Read Pos X
Picture Read Pos Y
Picture Read
(--/EURO/UK/ITALY/FRANCE/RUSSIA)ENTER
(--/26/32/37/45)
OFF/ON
XxH xxM
OFF/ON
XxH xxM
OFF/ON
0
0
ON/OFF
Initialization to factory settings
Initialization data for different panel sizes
PUBLIC MODE flag setting
Main operating hours (Not Operative)
Main operating hours reset
Backlight operating hours
Backlight operating hours reset
x-axis setting of picture data
y-axis setting of picture data
Start/stop of picture data
[PAL. SECAM. N358]
3/11
1
2
3
4
5
6
7
8
9
RF-AGC ADJ
PAL+TUNER ADJ
PAL ADJ
TUNER ADJ
CONTRAST SD
SECAM CB OFFSET
SECAM CR OFFSET
TUNER A DAC
RF AGC
ENTER
ENTER
ENTER
ENTER
32
1
1
32
20
RF AGC auto adjustment
PALTUNER auto adjustment
PAL auto adjustment
TUNER auto adjustment
SD contrast adjustment
SECAM contrast adjustment
SECAM contrast adjustment
TUNER DAC adjustment
RF AGC adjustment
[COMP 15K]
4/11
1
2
COMP 15K ADJ
COMP 15K CONTRAST
ENTER
32
COMP 15K auto adjustment
Contrast adjustment
[HDTV]
5/11
1
HDTV CONTRAST
32
Contrast adjustment
[SMPTE]
6/11
1
2
3
4
5
6
7
8
9
RF-AGC ADJ
PAL+TUNER ADJ
PAL ADJ
TUNER ADJ
CONTRAST SD
SECAM CB OFFSET
SECAM CR OFFSET
TUNER A DAC
RF AGC
ENTER
ENTER
ENTER
ENTER
32
1
1
32
20
RF AGC auto adjustment
PALTUNER auto adjustment
PAL auto adjustment
TUNER auto adjustment
SD contrast adjustment
SECAM contrast adjustment
SECAM contrast adjustment
TUNER DAC adjustment
RF AGC adjustment
[M GAMMA INFO]
7/11
1
2
3
4
5
6
7
8
MGAMMA IN 1
MGAMMA IN 2
MGAMMA IN 3
MGAMMA IN 4
MGAMMA IN 5
MGAMMA IN 6
MGAMMA WRITE
MGAMMA RESET
160
320
480
640
800
960
OFF/ON
OFF/ON
W/B adjustment, gradation 1 input setting
W/B adjustment, gradation 2 input setting
W/B adjustment, gradation 3 input setting
W/B adjustment, gradation 4 input setting
W/B adjustment, gradation 5 input setting
W/B adjustment, gradation 6 input setting
EEP writing of adjustment values
Initialization of adjustment values
[M GAMMA 1-3]
8/11
1
2
3
4
5
6
7
8
9
10
MGAMMA R 1
MGAMMA G 1
MGAMMA B 1
MGAMMA R 2
MGAMMA G 2
MGAMMA B 2
MGAMMA R 3
MGAMMA G 3
MGAMMA B 3
MGAMMA WRITE
0
0
0
0
0
0
0
0
0
OFF/ON
W/B adjustment, gradation 1R adjustment value
W/B adjustment, gradation 1G adjustment value
W/B adjustment, gradation 1B adjustment value
W/B adjustment, gradation 2R adjustment value
W/B adjustment, gradation 2G adjustment value
W/B adjustment, gradation 2B adjustment value
W/B adjustment, gradation 3R adjustment value
W/B adjustment, gradation 3G adjustment value
W/B adjustment, gradation 3B adjustment value
EEP writing of adjustment values
[M GAMMA 4-6]
9/11
1
2
3
4
5
MGAMMA R 4
MGAMMA G 4
MGAMMA B 4
MGAMMA R 5
MGAMMA G 5
0
0
0
0
0
W/B adjustment, gradation 4R adjustment value
W/B adjustment, gradation 4G adjustment value
W/B adjustment, gradation 4B adjustment value
W/B adjustment, gradation 5R adjustment value
W/B adjustment, gradation 5G adjustment value
17
LC-26GA5E
LC-32GA5E
LC-32GD9E
LC-37GD9E
Page Line Item
Description
Remarks (Adjustment detail, etc.)
[M GAMMA 4-6]
9/11
(Continued)
6
7
8
9
10
MGAMMA B 5
MGAMMA R 6
MGAMMA G 6
MGAMMA B 6
MGAMMA WRITE
0
0
0
0
OFF/ON
W/B adjustment, gradation 5B adjustment value
W/B adjustment, gradation 6R adjustment value
W/B adjustment, gradation 6G adjustment value
W/B adjustment, gradation 6B adjustment value
EEP writing of adjustment values
[ETC]
10/11
1
2
3
4
5
6
7
8
9
10
EEP CLEAR
EEP CLEAR B
STAND BY CAUSE RESET
AUTO INSTALLATION SW
OPTION
COUNTRY
L ERR RESET
L ERR STOP
DTV CLR
I2C-OFF
OFF/ON
OFF/ON
OFF/ON
0/1
0
(--/EURO/UK/ITALY/FRANCE/RUSSIA)
0
0/1
0/1
ENTER
Restore NVM data to default values
Restore NVM data to default values except
adjustment data
Clearing of standby cause error list
0: unfinished 1:finish (The setting takes effect
the next time the power is turned on.)
Selected country
Lamp error counter
Stops Lamp Error feature
Restore Digital Module NVM to default values
BUS STOP
LCD
11/11
1
2
3
4
5
6
7
OSC FREQ 50
OSC FREQ 60
PWM FREQ 50
PWM FREQ 60
PWM FREQ
PWM DUTY
PWM CTRL
144
144
1
1
424
227
0
17
LC-26GA5E
LC-32GA5E
LC-32GA8/LC-32BV8
LC-37GA8/LC-37BV8
4. Special Features
- ERROR STAND-BY CAUSE (Page 1/11)
When the unit enters standby due to operational error, total time before the error and the cause of error is recorded
on EEPROM, if possible. The values can be used to locate the fault for repair.
- EEP CLEAR (Page 10/11)
Restore NVM data to default values.
- EEP CLEAR B (Page 10/11)
Restore NVM data to default values except adjustment data.
5. Video Signal Adjustment Procedure
The adjustment process mode menu is listed in Section 3.
5.1. Signal check
Signal generator level adjustment check (Adjustment to the specified level).
- Composite signal PAL
: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
- 15K Component signal
: Y level
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
(50Hz) (576i/50Hz)
PB, PR level
0.7Vp-p ± 0.02Vp-p
5.2. Entering the adjustment process mode
Enter the adjustment process mode according to Section
1.
5.3. RF AGC Adjustment
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Adjustment Point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Field Color Bar
RF signal
[Terminal]
TUNER
• Feed the PAL color bar signal (E-12ch) to TUNER.
Signal level: 50 ±1dB µV (75Ω LOAD)
2
Auto adjustment
performance
Adjustment process page 3.
Bring the cursor on [▪RF AGC ADJ] and press [OK].
[▪RF AGC ADJ OK] appears when finished.
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↑ 100% white
[TUNER]
18
LC-26GA5E
LC-32GA5E
LC-32GD9E
LC-37GD9E
18
LC-26GA5E
LC-32GA5E
LC-32GA8/LC-32BV8
LC-37GA8/LC-37BV8
5.5. PAL Signal & Tuner Adjustment
5.4. RF AGC Adjustment (SMPTE RF SIGNAL- Alternative Method)
Adjustment Point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
SMPTE Field Color Bar
RF signal
[Terminal]
TUNER
• Feed the PAL SMPTE color bar signal (E-12ch) to TUNER.
Signal level: 50 ±1dB µV (75Ω LOAD)
2
Auto adjustment
performance
Adjustment process page 6.
Bring the cursor on [▪RF AGC ADJ] and press [OK].
[▪RF AGC ADJ OK] appears when finished.
↑ 100% white
Adjustment Point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
FULL Field Color Bar
Composite or RF signal
[Terminal]
EXT3 VIDEO IN
TUNER
• Feed the PAL full field color bar signal (75% color saturation) to
EXT3 VIDEO IN.
• Feed the RF signal PAL color bar (E-12) to TUNER.
• Make sure the PAL color bar pattern (E-12) has the sync level of 7:3
with the picture level.
2
Auto adjustment
performance
Adjustment process page 3.
Bring the cursor on [▪PAL +TUNER ADJ] and press [OK].
[▪PAL+ TUNER ADJ OK] appears when finished.
↑ 100% white
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↑ 100% white
5.6. PAL Signal & Tuner Adjustment (SMPTE RF SIGNAL-Alternative Method)
Adjustment Point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
FULL Field Color Bar
Composite or
RF SMPTE
signal
[Terminal]
EXT3 VIDEO IN
TUNER
• Feed the PAL full field color bar signal (75% color saturation) to
EXT3 VIDEO IN.
• Feed the RF signal SMPTE color bar (E-12) to TUNER.
• Make sure the SMPTE color bar pattern (E-12) has the sync level of
7:3 with the picture level.
2
Auto adjustment
performance
Adjustment process page 6.
Bring the cursor on [▪PAL +TUNER ADJ] and press [OK].
[▪PAL+ TUNER ADJ OK] appears when finished.
↑ 100% white
↑ 100% white
[EXT 3]
[TUNER]
[EXT 3]
[TUNER]
[TUNER]
19
LC-26GA5E
LC-32GA5E
LC-32GD9E
LC-37GD9E
19
LC-26GA5E
LC-32GA5E
LC-32GA8/LC-32BV8
LC-37GA8/LC-37BV8
5.7. ADC Adjustment (Component 15K)
Adjustment Point
Adjustment conditions
Adjustment procedure
1
Setting
[Signal] (576i/50)
COMP 15K, 50Hz
100% Full Field Color Bar
[Terminal]
EXT4 [COMPONENT]
• Feed the COMPONENT 15K 100% full field color bar signal (100%
color saturation) to EXT4 COMPONENT IN.
2
Auto adjustment
performance
Adjustment process page 4.
Bring the cursor on [▪COMP15K ADJ] and press [OK].
[▪COMP15 ADJ OK] appears when finished.
↑ 100% white
[EXT 4]
6. White Balance Adjustment
Adjustment procedure Page 7/11 shows the value of adjustment gradation (IN value) and Adjustment procedure Page
8/11 & 9/11 show adj. offset value (initial value : 0). White balance adjustment is executed adjusting the adj. offset value,
indicated on Page 8/11 & 9/11.
Condition of the inspection: • Backlight: MAX (+8) [DYNAMIC]
• Colorimeter at screen centre
Adjustment reference device: Minolta CA-210
Tolerance adjustment spec. ±0.004, Inspection spec. : ±0.006 (GAMMA 1)
Tolerance adjustment spec. ±0.002, Inspection spec. : ±0.004 (GAMMA 2...6)
Adjustment: Check that the values on page 7/11 of process adjustment are set as below. If not, change them ac-
cordingly.
M GAMMA IN 1
160
M GAMMA IN 2
320
M GAMMA IN 3
480
M GAMMA IN 4
640
M GAMMA IN 5
800
M GAMMA IN 6
960
1- Display the current adjustment status at point 6. (Page 9/11 of process adjustment)
The pattern for checking the adjustment status is toggled by pressing the “6” button on the remote control. (Normal
OSD display -> “6” -> pattern for check (OSD disappears) -> “6” -> normal OSD display -> …)
2- Read the value of the luminance meter.
3- Change M GAMMA R6/M GAMMA B6 (adjustment offset value) on page 9/11 of process adjustment so that the
values of the luminance meter approach
x = 0.272 and y = 0.277.
(Basically, G is not changed. If adjustment fails only with R and B, then G should be reduced. In this case, the weaker
of R and B must be fixed.)
4- If G is changed in step “3”, change the values of M GAMMA G1 - M GAMMA G5 on pages 8/11 and 9/11 of process
adjustment as follows. When not changed, go to step “5”.
Offset value of M GAMMA G1 = (Offset value of M GAMMA G6)*(160/960)
Offset value of M GAMMA G2 = (Offset value of M GAMMA G6)*(320/960)
Offset value of M GAMMA G3 = (Offset value of M GAMMA G6)*(480/960)
Offset value of M GAMMA G4 = (Offset value of M GAMMA G6)*(640/960)
Offset value of M GAMMA G5 = (Offset value of M GAMMA G6)*(800/960)
← Black