LC-37X20E (serv.man4). Adjustment Procedure - Sharp TV Service Manual (repair manual)

Model
LC-37X20E (serv.man4)
Pages
18
Size
923.12 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjustment Procedure
File
lc-37x20e-sm4.pdf
Date

View Sharp LC-37X20E (serv.man4) Service Manual online

LC-32X20E/S/RU, LC-37X20E/S/RU
3 – 1
LC32X20E
Service Manual
 
CHAPTER 3. 
ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to
the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit, IC3301, IC8101, IC3501, IC3502, IC8301, IC8302, IC8303, or IC8304.
NOTE: [Caution when replacing ICs in the main unit (IC1501/IC1502/IC1503/IC1505/IC2002)]
The above ICs are EEPROMs storing the EDID data of HDMI and the monitor microcomputer. Before replacing the relevant part, procure the
following parts in which the data have been rewritten.
2. After replacing the LCD panel or LCD control PWB, check PANEL_SIZE in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys 
/
 and P
/
 of R/C to select the item [PANEL_SIZE] on the page 33/33.
3) Verify that the panel size is displayed.
4) If the size doesn't match, select the values of the panel size with the Vol 
/
 keys.
5) After selection in Step 4), press the OK key, and it is completed with OK displayed.
3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys 
/
 and P
/
 of R/C to select the item [VCOM ADJ] on the page 10/33.
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use the +/- keys of VOL of L/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.
MAIN UNIT: DUNTKE237FM02
IC2002
RH-IXB986WJN8Q
Monitor microcomputer
IC1505
RH-IXC284WJQZS
HDMI_EXT4
IC1501
RH-IXC285WJQZS
HDMI_EXT5
IC1502
RH-IXC286WJQZS
HDMI_EXT6
IC1503
RH-IXC287WJQZS
RGB (PC)_EXT7
LC-32X20E/S/RU, LC-37X20E/S/RU
3 – 2
2. Entering and exiting the adjustment process mode
1. Press the “POWER” key on the set of running TV set to force off the power.
2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.
The letter “K” appears on the screen.
3. Next, hold down the “VOL (-)” and “P (V)” keys on the set at once.
Multiple lines of character string appearing on the screen indicate that the set is now in the adjustment Process mode. If you fail to enter the
adjustment process mode (the display is the same as normal startup), retry the procedure. (Another procedure)
4. Press the “MENU” key on the main unit to display OSD.
5. Move the cursor to SERVICE (OSD) using the cursor keys on the remote control.
Then press the “MENU” key on the remote control to enter the service mode (adjustment process mode).
6. To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off
with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
3. Remote controller key operation and description of display in adjustment process mode.
1. key operation
Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.
4. Description of display
CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode. If the 
settings are tampered with in this mode, unrecoverable system damage may result.
Remote controller key
Main unit key
Function
P (
/
)
P (
/
)
Moving an item (line) by one (UP/DOWN)
VOL (+/-)
VOL (+/-)
Changing a selected item setting (+1/-1)
Cursor (UP/DOWN)
Turning a page (PREVIOUS / NEXT)
Cursor (</>)
Changing a selected line setting (+10/-10)
INPUT SOURCE on 
remote controller
Input source switching (toggle switching) (TV
→EXT1~8)
RETURN
Returning to a present page
OK
Executing a function
No.
Description
Display specification
(1)
Page/ of present number of total pages
2char/2char Decimal Number mark.
(2)
Page present title
It bundles it by Max. 15 char “[“ ”]”.
(3)
Input that has been selected now
TV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/INPUT8
(4)
Present colour system
NTSC/PAL/SECAM/COMP15K/COMP33K/COMP45K/COMP28K/COMP31K
(5)
Inducing display
EUROPE/RUSSIA/SWEDEN
(6)
Model name
MODEL NAME
(7)
Item name
Max. 30 char
(8)
Parameter
Max. 60 char
(1) Page/ of present number of total pages
(5) Inducing display
(3) Input that has been selected now
(2) Page present title
(4) Present colour system
(6) Model name
1/33
[INFO]
INPUT1
AUTO
???
37E_X20
MAIN Version
BOOT Version
Monitor Version
CPLD Version
FRC Version
EQ DATA CHECKSUM
LAMP ERROR
MONITOR ERR CAUSE
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
1.00 (E 2007/07/10 D)
1.0
a6
ROM
0
11 11 11 11
0
1) 0
2) 0
3) 0
0H 0M
0H 0M
0H 0M
4) 0
5) 0
0H 0M
0H 0M
(7) Item name
(8) Parameter
LC-32X20E/S/RU, LC-37X20E/S/RU
3 – 3
5. 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.)
1/33
[INFO]
1
MAIN Version
Main software version
2
BOOT Version
BOOT Version.
3
Monitor Version
Monitor software version
4
FRC Version
FRC Version
5
CPLD Version
CPLD Version.
6
EQ DATA CHECKSUM
Audio data checksum.
7
LAMP ERROR
Number of termination due to lamp error.
8
MONITOR ERR CAUSE
Last error standby cause.
9
NORMALSTANDBY CAUSE
Situation that became standby at the end.
(Excluding the error)
10
ERROR STANDBY CAUSE
[1] 00H 00M
Error standby cause Total operating time before error.
[2] 00H 00M
[3] 00H 00M
[4] 00H 00M
[5] 00H 00M
2/33
[INIT]
1
INDUSTRY INIT
Enter
Initialization to factory settings execution.
2
INDUSTRY INIT(-Hotel)
OFF
Initialization to factory settings execution.
(Hotel mode is excluded)
3
HOTEL MODE
OFF
Hotel mode setting execution.
4
Center Acutime
5H 0M
Main operating hours.
5
RESET
OFF
Main operating hours reset.
6
Backlight Acutime
19H 35M
Backlight operating hours.
7
RESET
OFF
Backlight operating hours reset.
8
LAMP ERROR RESET
OFF
Lamp error reset.
9
ADJ PARAM SET
Enter
ADJ PARAM SET
10
VIC XPOS
0
X-coordinate setting for VIC READ
11
VIC YPOS
0
Y-coordinate setting for VIC READ
12
VIC SIGNAL TYPE
MAIN
Signal type setting for VIC READ
13
VIC READ
OFF
Picture level acquisition function
(Level appears in green on the upper right)
3/33
[TUNER ADJ]
1
RF AGC ADJ
Enter
RF-AGC auto adjustment execution
2
TUNER ADJ
Enter
TUNER auto adjustment execution
3
PAL+TUNER ADJ
Enter
PAL TUNER auto adjustment execution
4
RF AGC ADJ(CA-8CH)
Enter
RF-AGC auto adjustment execution (CA-8CH)
5
TUNER ADJ(CA-8CH)
Enter
TUNER auto adjustment execution (CA-8CH)
6
PAL+TUNER ADJ(CA-8CH)
Enter
PAL TUNER auto adjustment execution (CA-8CH)
7
RF AGC
16
RF AGC adjustment
8
TUNER DAC
150
TUNER signal level adjustment
9
RF  AGC  READ
OFF
4/33
[PAL MAIN]
1
PAL ADJ
Enter
PAL adjustment
2
SECAM ADJ
Enter
SECAM adjustment
3
N358 ADJ
Enter
N358 adjustment
4
PAL CONTRAST
130
PAL contrast adjustment
5
SECAM CONTRAST
137
SECAM CONTRAST adjustment
6
N358 CONTRAST
120
N358 CONTRAST adjustment
5/33
[CEC TEST]
1
HDMI CEC TEST
Enter
CEC test
2
INSPECT USB TERM
Enter
3
MONIDATA READ[TEMP/OPC]
OFF
MONITOR Temperature/ OPC Acquisition tool.
4
CAUSE RESET
Enter
6/33
[COMP15KMAIN]
1
COMP15K ALL ADJ
Enter
Component 15K picture level adjustment
2
COMP15K MAIN Y GAIN
194
Y GAIN adjustment value
3
COMP15K MAIN CB GAIN
215
Cb GAIN adjustment value
4
COMP15K MAIN CR GAIN
212
Cr GAIN adjustment value
5
COMP15K Y OFFSET
66
Y OFFSET adjustment value
6
COMP15K CB OFFSET
512
Cb OFFSET adjustment value
7
COMP15K CR OFFSET
513
Cr OFFSET adjustment value
LC-32X20E/S/RU, LC-37X20E/S/RU
3 – 4
Page
Line
Item
Description
Remarks (adjustment detail, etc.)
7/33
[HDTV]
1
HDTV ADJ
Enter
HDTV video level adjustment
2
HDTV Y GAIN
195
HDTV Y GAIN adjustment value
3
HDTV CB GAIN
205
HDTV Cb adjustment value
4
HDTV CR GAIN
203
HDTV Cr adjustment value
5
HDTV Y OFFSET
65
HDTV Y OFFSET adjustment value
6
HDTV CB OFFSET
512
HDTV Cb OFFSET adjustment value
7
HDTV CR OFFSET
512
HDTV Cr OFFSET adjustment value
8/33
[ANALOG PC]
1
ANALOG PC ADJ
Enter
DVI ANALOG video level adjustment
2
R OFFSET
64
R CUTOFF adjustment value
3
G OFFSET
64
G CUTOFF adjustment value
4
B OFFSET
66
B CUTOFF adjustment value
5
R GAIN
193
R DRIVE adjustment value
6
G GAIN
189
G DRIVE adjustment value
7
B GAIN
194
B DRIVE adjustment value
9/33
[SCART]
1
SCART RGB ADJ
Enter
SCART RGB level adjustment
2
SCART R CUTOFF
65
SCART R CUTOFF adjustment value
3
SCART G CUTOFF
60
SCART G CUTOFF adjustment value
4
SCART B CUTOFF
64
SCART B CUTOFF adjustment value
5
SCART R GAIN
200
SCART R GAIN adjustment value
6
SCART G GAIN
195
SCART G GAIN adjustment value
7
SCART B GAIN
201
SCART B GAIN adjustment value
10/33
[LUMAADJ]
1
VCOM  ADJ
69
2
LCD LUMA ADJ
Enter
3
LCD LUMA UP
26
4
LCD LUMA DOWN
13
11/33
[FR DDRTEST]
1
DDRA TEST1
Enter
2
DDRA TEST2
Enter
3
DDRB TEST1
Enter
4
DDRB TEST2
Enter
5
DDRB TEST3
Enter
6
FRC ON/OFF
Enter
7
SOUSAM DDR BIST
Enter
8
SOUSAS DDR BIST
Enter
12/33
[LEV]
1
LEV1
176
2
LEV2
352
3
LEV3
528
4
LEV4
656
5
LEV5
800
6
LEV6
928
13/33
[MGXX1]
1
MG1R
178
W/B adjustment, gradation 1R adjustment value
2
MG1G
184
W/B adjustment, gradation 1G adjustment value
3
MG1B
138
W/B adjustment, gradation 1B adjustment value
4
MG2R
227
W/B adjustment, gradation 2R adjustment value
5
MG2G
232
W/B adjustment, gradation 2G adjustment value
6
MG2B
177
W/B adjustment, gradation 2B adjustment value
7
MG3R
316
W/B adjustment, gradation 3R adjustment value
8
MG3G
322
W/B adjustment, gradation 3G adjustment value
9
MG3B
249
W/B adjustment, gradation 3B adjustment value

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