Read Sharp LC-42DH77EC (serv.man5) Service Manual online
LC-32/42/46DH77E/RU/S
3 – 1
LC-32DH77E
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.
the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit, IC3302.
NOTE: [Caution when replacing ICs in the main unit (IC501, IC1504, IC2002)]
The above ICs are EEPROMs storing the EDID data of PC, HDMI and 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 UNIT, check PANEL_SIZE in the following procedure.
1) Enter the process adjustment mode in AVC.
2) Use the cursor keys (
/
) and P keys (
/
) of R/C to select the item [PANEL_SIZE] on the page 16/16.
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 10/16.
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use the +/- keys of VOL of R/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.
2. Entering and exiting the adjustment process mode
1. Unplug the AC power cord 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 (
)” keys on the set at once.
Multiple lines of blue characters 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.
4. 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.
MAIN UNIT: DUNTKF190FM01
IC501
RH-iXC697WJQZS
PC
IC2002
RH-iXC786WJN1Q
Monitor microcomputer
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 (
/
)
—
Turning a page (PREVIOUS/NEXT)
Cursor (</>)
—
Changing a selected line setting (+10/-10)
INPUT
INPUT
Input source switching (toggle switching) (TV
→EXT1~8)
OK
—
Executing a function
RETURN
—
Returning to a present page
LC-32/42/46DH77E/RU/S
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4. Description of display
No.
Description
Display specification
(1)
Present page/number of total pages
2char/2char Decimal Number mark.
(2)
Input that has been selected now
TUNER/DTV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/INPUT8
(3)
Present colour system
NTSC/PAL/SECAM/COMP15K/COMP33K/COMP45K/COMP28K/COMP31K
(4)
Inducing display
EUROPE/RUSSIA/SWEDEN
(5)
Model name
MODEL NAME
(6)
Item name
Max. 30 char
(7)
Parameter
Max. 60 char
(1) Present page / number of total pages
(4) Inducing display
(3) Present colour system
(2) Input that has been selected now
(5) Model name
1/16
INPUT1
AUTO
EURO
32E_DH77E
MAIN Version
1.00 (E 2008/**/** 1HDE2)
BOOT Version
Monitor Version
Monitor Version
1.0
T-CON /H.264Version
CPLD Version
CPLD Version
c3
EQ DATA CHECKSUM
ROM
LAMP ERROR
0
MONITOR ERR CAUSE
11 11 11 11
NORMAL STANDBY CAUSE
0
ERROR STANDBY CAUSE
1) 0
2) 0
3) 0
0H 0M
0H 0M
0H 0M
4) 0
5) 0
0H 0M
0H 0M
(6) Item name
(7) Parameter
(LC-32DH77E/RU/S: 32E_DH77)
(LC-42DH77E/RU/S: 42E_DH77)
(LC-46DH77E/RU/S: 46E_DH77)
(LC-42DH77E/RU/S: 42E_DH77)
(LC-46DH77E/RU/S: 46E_DH77)
LC-32/42/46DH77E/RU/S
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.)
1/16
[INFO]
1
MAIN Version
Main software version
2
BOOT Version
BOOT Version.
3
Monitor Version
Monitor software version
4
T-CON/H.264 Version
T-CON/H.264 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
NORMAL STANDBY CAUSE
Situation that became standby at the end. (Excluding the error)
10
ERROR STANDBY CAUSE
[1] 0 0H 0M
Error standby cause Total operating time before error.
[2] 0 0H 0M
[3] 0 0H 0M
[4] 0 0H 0M
[5] 0 0H 0M
[3] 0 0H 0M
[4] 0 0H 0M
[5] 0 0H 0M
2/16
[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 ON/OFF setting
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)
(Level appears in green on the upper right)
3/16
[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 CONTRAST A_GAIN
14
TUNER signal level adjustment
9
TUNER CONTRAST B_GAIN
2048
TUNER signal level adjustment
10
TUNER CONTRAST OFFSET
256
TUNER signal level adjustment
11
RF AGC READ
OFF
Reading value of RF-AGC voltage
4/16
[PAL MAIN]
1
PAL ADJ
Enter
PAL adjustment
2
SECAM ADJ
Enter
SECAM adjustment
3
N358 ADJ
Enter
N358 adjustment
4
PAL CONTRAST A_GAIN
14
PAL contrast adjustment
5
PAL CONTRAST D_GAIN
2048
PAL contrast adjustment
6
PAL CONTRAST OFFSET
256
PAL contrast adjustment
7
SECAM CONTRAST A_GAIN
14
SECAM contrast adjustment
8
SECAM CONTRAST D_GAIN
2048
SECAM contrast adjustment
9
SECAM CONTRAST OFFSET
256
SECAM contrast adjustment
10
N358 CONTRAST A_GAIN
14
N358 contrast adjustment
11
N358 CONTRAST D_GAIN
2048
N358 contrast adjustment
12
N358 CONTRAST OFFSET
256
N358 contrast adjustment
5/16
[CEC TEST]
1
HDMI CEC TEST
Enter
HDMI CEC test
2
INSPECT USB TERM
Enter
Reading inspection of USB memory terminal
3
HDMI EDID WRITE
Enter
HDMI EDID WRITING
4
MONIDATA READ [TEMP/OPC]
OFF
MONITOR Temperature/OPC Acquisition tool.
5
CAUSE RESET
Enter
Reset of standby cause
LC-32/42/46DH77E/RU/S
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6/16
[COMP15KMAIN]
1
COMP15K ALL ADJ
Enter
Component 15K picture level adjustment
2
COMP15K MAIN Y GAIN
141
Y GAIN adjustment value
3
COMP15K MAIN CB GAIN
150
Cb GAIN adjustment value
4
COMP15K MAIN CR GAIN
150
Cr GAIN adjustment value
5
COMP15K Y OFFSET
64
Y OFFSET adjustment value
6
COMP15K CB OFFSET
128
Cb OFFSET adjustment value
7
COMP15K CR OFFSET
128
Cr OFFSET adjustment value
7/16
[HDTV]
1
HDTV ADJ
Enter
HDTV video level adjustment
2
HDTV Y GAIN
141
HDTV Y GAIN adjustment value
3
HDTV CB GAIN
150
HDTV Cb adjustment value
4
HDTV CR GAIN
150
HDTV Cr adjustment value
5
HDTV Y OFFSET
64
HDTV Y OFFSET adjustment value
6
HDTV CB OFFSET
128
HDTV Cb OFFSET adjustment value
7
HDTV CR OFFSET
128
HDTV Cr OFFSET adjustment value
8/16
[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
64
B CUTOFF adjustment value
5
R GAIN
44
R DRIVE adjustment value
6
G GAIN
44
G DRIVE adjustment value
7
B GAIN
44
B DRIVE adjustment value
9/16
[SCART]
1
SCART RGB ADJ
Enter
SCART RGB level adjustment
2
SCART R CUTOFF
64
SCART R CUTOFF adjustment value
3
SCART G CUTOFF
64
SCART G CUTOFF adjustment value
4
SCART B CUTOFF
64
SCART B CUTOFF adjustment value
5
SCART R GAIN
44
SCART R GAIN adjustment value
6
SCART G GAIN
44
SCART G GAIN adjustment value
7
SCART B GAIN
44
SCART B GAIN adjustment value
10/16
[LUMAADJ]
1
VCOM ADJ
0
Common bias adjustment
2
LCD LUMA ADJ
Enter
Upper and lower brightness difference adjustment
3
LCD LUMA UP
0
4
LCD LUMA DOWN
0
11/16
[FR DDRTEST]
1
DDRA TEST1
Enter
Execute DDRA test 1
2
DDRA TEST2
Enter
Execute DDRA test 2
3
DDRB TEST1
Enter
Execute DDRA test 1
4
DDRB TEST2
Enter
Execute DDRA test 2
5
DDRB TEST3
Enter
Execute DDRA test 3
6
FRC ON/OFF
Enter
Execute FRC ON/OFF
7
SOUSAM DDR BIST
Enter
8
SOUSAS DDR BIST
Enter
12/16
[LEV]
1
R GAIN (LO)
0
R DRIVE adjustment value
2
G GAIN (LO)
0
G DRIVE adjustment value
3
B GAIN (LO)
0
B DRIVE adjustment value
4
R GAIN (HI)
0
R DRIVE adjustment value
5
G GAIN (HI)
0
G DRIVE adjustment value
6
B GAIN (HI)
0
B DRIVE adjustment value
13/16
[M EEP SET]
1
MONITOR TIME OUT
ON
Monitor and the main communication time-out setting
2
MONITOR MAX TEMP
32
MONITOR MAX temperature setting
3
MONITOR EEP READ / WRITE
WRITE
MONITOR EEPROM READ/WRITE Setting/execution
4
MONITOR EEP ADR
0x 0
MONITOR EEPROM arbitrary addressing
5
MONITOR EEP DATA
0x 0
MONITOR EEPROM arbitrary data specification
14/16
[M TEST PATTERN]
1
LCD TEST PATTERN
OFF
Pattern with built-in LCD controller display
2
LCD AGI TEST PATTERN
3
LCD EVA TEST PATTERN
4
YEL TEST PATTERN
Page
Line
Item
Description
Remarks (adjustment detail, etc.)
