LC-46DH77E (serv.man4). Adjustment Procedure - Sharp TV Service Manual (repair manual)

Model
LC-46DH77E (serv.man4)
Pages
16
Size
653.36 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjustment Procedure
File
lc-46dh77e-sm4.pdf
Date

View Sharp LC-46DH77E (serv.man4) Service Manual online

LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 1
LC-42DH77E
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, IC8101, IC5001, or IC5003.
NOTE: [Caution when replacing ICs in the main unit (IC1504)]
The above ICs are EEPROMs storing the EDID data of HDMI. 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 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: DUNTKE685FM24 (LC-42DH77E/RU/S/V)
DUNTKE685FM39 (LC-46DH77E/RU/S/V)
IC1504
RH-iXC442WJN1S
EDID (HDMI)
IC1503
RH-iXC697WJQZS
EDID (PC)
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)
RETURN
Returning to a present page.
OK
Executing a function.
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 2
4. Description of display
No.
Description
Display specification
(1)
Page of present number of total pages 2char/2char Decimal Number mark.
(2)
Input that has been selected now
TUNER/ DTV/ INPUT1/ INPUT2/ INPUT3/ INPUT4/ 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) Page of present 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
42E_DH77
MAIN Version
BOOT Version
Monitor Version
CPLD Version
T-CON Version/H.264 Version
EQ DATA CHECKSUM
LAMP ERROR
MONITOR ERR CAUSE
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
1.00 (E2008/**/** HDE2)
1.0
c3
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
(6) Item name
(7) Parameter
(LC-42DH77E/RU/S/V: 42E_DH77)
(LC-46DH77E/RU/S/V: 46E_DH77)
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
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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
1
MAIN Version
Main software version
2
BOOT Version
BOOT Version.
3
Monitor Version
Monitor software version
4
T-CON Version/H.264 Version
T-CON Version/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] 00H 00M
Error standby cause Total operating time before error.
[2] 00H 00M
[3] 00H 00M
[4] 00H 00M
[5] 00H 00M
2/16
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)
3/16
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
TUNER ADJ (SMPTE)
Enter
TUNER auto adjustment execution (SMPTE)
8
PAL+TUNER ADJ (SMPTE)
Enter
PAL TUNER auto adjustment execution (SMPTE)
9
RF AGC
16
RF AGC adjustment
10
TUNER DAC
150
TUNER signal level adjustment
11
TUNER CONTRAST OFFSET
0
TUNER signal level adjustment
12
RF AGC READ
OFF
4/16
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
5/16
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
6/16
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
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7/16
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
8/16
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
9/16
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
10/16
1
VCOM ADJ
69
2
LCD LUMA ADJ
Enter
3
LCD LUMA UP
26
4
LCD LUMA DOWN
13
11/16
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
12/16
1
R GAIN (LO)
0
2
G GAIN (LO)
0
3
B GAIN (LO)
0
4
R GAIN (HI)
0
5
G GAIN (HI)
0
6
B GAIN (HI)
0
13/16
1
MONITOR TIME OUT
ON
2
MONITOR MAX TEMP
30
3
MONITOR EEP READ/WRITE
WRITE
4
MONITOR EEP ADR
0x 0
5
MONITOR EEP DATA
0x 0
14/16
1
LCD TEST PATTERN
OFF
Pattern with built-in LCD controller display
2
LCD AGI TEST PATTERN
OFF
3
LCD EVA TEST PATTERN
OFF
4
YEL TEST PATTERN
OFF
15/16
1
READ/WRITE
READ
2
SLAVE ADDRESS
SLAVE0
3
REGISTER ADDRESS
0x 0
0x 0
4
WRITE  DATA
0x  0
0x 0
5
READ DATA
0x 0
0x 0
16/16
1
EEP SAVE
OFF
Writing setting values to EEPROM.
2
EEP RECOVER
OFF
Reading setting values from EEPROM.
3
MONITOR ERROR CAUSE RESET
OFF
4
STANDBY CAUSE RESET
OFF
Reset stand by cause.
5
MODEL NAME
DH77
6
PANEL SIZE
42
46
7
PRODUCT EEP ADR
0x 0
8
PRODUCT EEP DATA
0x 0
Page
Line
Item
Description
Remarks (adjustment detail, etc.)
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3 – 5
6. Special features
1. NORMAL STANDBY CAUSE (Page 1/16)
Display of a cause (code) of the last standby.
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
2. EEP SAVE (Page 16/16)
Storage of EEP adjustment value
3. EEP RECOVER (Page 16/16)
Retrieval of EEP adjustment value from storage area.
7. Lamp error detection
1. Function
This LCD colour TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp
circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some rea-
son, the following will result.
1) The power is interrupted in about 6 seconds after it is turned on.
(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 300ms and OFF for 1500ms.).
2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).
2. Measures
1) Checking with lamp error detection OFF
Enter the adjustment process mode, referring to 2. Entering and exiting the adjustment process mode.
If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)
Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
2) Resetting the lamp error count
After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is detected five consecutive times, the power
cannot be turned on. Using the cursor (
/
) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode ser-
vice page 2/16. With the cursor (</>) keys, select the [LAMP ERROR RESET] value. Finally press the cursor (OK) eys to reset the value to “0”.
Table of contents of adjustment process mode Page 2/16
INDUSTRY INIT
Enter
INDUSTRY INIT(-Hotel)
OFF
HOTEL MODE
OFF
5H0M
Center Acutime
RESET
OFF
Backlight Acutime
RESET
OFF
LAMP ERROR RESET
OFF
ADJ PARAM SET
Enter
VIC XPOS
0
VIC YPOS
0
VIC SIGNAL TYPE
MAIN
VIC READ
OFF
Resetting to "0"
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 6
8. Public Mode (Hotel Mode)
1. Starting the Public Mode
• There are two following ways to display the PUBLIC Mode setting screen.
1) On the process adjustment mode screen (2/16), set the “HOTEL MODE” Flag to ON.
Turn off the power, and turn it on again, pressing the 
 and 
 keys of the main unit at the same time.
2) Enter the Pass Word, and start the unit.
a) Turn on the power, pressing the 
 and 
 keys of the main unit at the same time.
b) Display the Pass Word input screen.
Operation procedure
• The initial input position is the digit at the left end.
• For the numeric keys 
 to 
 of R/C, key input is accepted. Input of the other keys is prohibited.
• Change “–” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If the Pass Word is 
, it shifts to the PUBLIC Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
2. Exiting the Public Mode screen
• There are two following ways to exit the Public Mode setting screen.
1) Turn off the power.
2) Select “Execution” in the PUBLIC_Mode to execute it.
Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the
power is turned on.
3. Set value of the Public Mode
• When the shipment setting is done, a set each value in Public Mode is initialized.
(PUBLIC MODE in the process mode Setting of a flag is also initialized)
• Separately, the shipment beginnings when all except for each set value in Public Mode is initialized are provided for a process mode. (INDUS-
TRY INIT (-HOTEL))
• Only when turning on the HOTELE MODE item, each setting is effective.
• After it decides it with EXECUTE, it AC OFF/ON it to reflect a set value.
CHANNEL UP
Volume UP
INPUT
Volume UP
Public Mode
Public Mode
Public Mode
0
9
0
2
7
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 7
4. Basic operation in the Public Mode
5. Operation after “RESET”
Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).
• The set contents in the PUBLIC mode are initialized.
• It does not exit the PUBLIC mode.
• If “EXCUTE” is not executed, the content that does RESET is not reflected.
Volume 
/
 or Cursor 
</>
Change or execution of the set value.
Channel 
/
 or Cursor 
/
Movement to the selected item.
Decision (ok)
Execution (Used by the items “Execution” and “RESET”.)
PUBLIC Mode R/C
Ordinary operation mode: It enters the PUBLIC Mode.
PUBLIC MODE Flag is set to “ON”.
PUBLIC Mode: It exits the PUBLIC Mode.
PUBLIC MODE Flag does not change.
Any set item in PUBLIC Mode is not initialized.
Public Mode
POWER ON FIXED
[VARIABLE]
SHUT DOWN MODE
[NORMAL]
MAXIMUM VOLUME
[60]
VOLUME FIXED
[VARIABLE]
VOLUME FIXED LEVEL
[20]
RC BUTTON
[RESPOND]
PANEL BUTTON
[RESPOND]
MENU BUTTON
[RESPOND]
AV POSITION FIXED
[VARIABLE]
ON SCREEN DISPLAY
[YES]
INPUT MODE START
[NORMAL]
INPUT MODE FIXED
[VARIABLE]
LOUD SPEAKER
[ON]
RC PATH THROUGH
[OFF]
232C POWON
[DISABLE]
HOTELMODE
[ON]
RESET
EXECUTE
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
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6. Setting items (* Item names and selective items are expressed in English.)
1) Power ON fixed [POWER ON FIXED]
If the power button is pressed in the ordinary mode when set to “FIXED_ALL”, the caution is displayed for 5 seconds.
       When power button on the main unit is pressed                             When power button on R/C is pressed
* The OSD display is an example.
If another ODS is previously displayed, the status is reset (MENU or similar).
2) Instantaneous current shutdown setting when turning off the power [SHUT DOWN MODE]
3) Volume maximum level [MAXIMUM VOLUME]
4) Volume fixed [VOLUME FIXED]
Option
“VARIABLE”, “FIXED_ALL”, “FIXED_BODYKEY” or “RC RESPOND” (loop enabled)
Default
“VARIABLE”
Function
• When set to “FIXED_ALL”, the “POWER/RECEPTION” key on the main unit or remote control is disabled.
However, the power can be turned off using the “MAIN POWER” switch.
• For some models, the (MAIN) POWER switch is also disabled.
• When set to “FIXED_BODYKEY”, only the “MAIN POWER” key on the main unit is disabled (the remote control is 
enabled).
• When selecting “RC RESPOND”, the main unit’s POWER switch toggles between ON and Standby (the same 
operation as the remote control).
Key disabled when set 
other than default
• OFF TIMER (SLEEP)
Remarks
• When selecting to “FIXED_ALL”, it functions with the correspondence which isn’t done about other standby fac-
tors (see below).
• No operation OFF
• No signal OFF (including the power management)
Option
“NORMAL” or “QUICK”
Default
NORMAL
Function
• Scanning or recording of the digital tuner is enabled/disabled when turning off the power. 
It is possible to put into the standby state instantaneously due to power off input.
Remarks
When selecting “QUICK”, the function does not work for the following items (The possible method differs from model 
to model: deleting the item, selection impossible, etc.)
• ON TIMER, QUICK START, DIGITAL FIXED, etc.
Option
0 ~ 60 (loop disabled)
Default
60
Function
• The volume cannot be increased more than the adjusted value (the main unit’s speaker only).
Remarks
• When set to 59 or less, only the figure is displayed in the normal mode; the volume bar is not displayed.
• The volume of the headphones or monitor output is limited.
• The setting is impossible when VOLUME FIXED is set other than VARIABLE.
Option
“VARIABLE”, “FIXED”, “AC CTRL” or “AC/RC CTRL” (loop enabled)
Default
“VARIABLE”
Function
• FIXED: The volume is fixed to the value adjusted in the volume fixed level.
• AC CTRL: In the case of ACON, the unit starts at the volume specified in the volume fixed level.
• AC/RC CTRL: The unit starts at the volume specified in the volume fixed level.
Exception
• In the adjustment process, the volume can be set to any level regardless of this setting.
Key disabled when set 
to FIXED
• VOLUME UP/DOWN (VOL+/-) [both remote control and main unit]
• MUTE (MUTE) * The main unit’s keys for the menu operation are enabled.
Remarks
• VOLUME FIXED has priority over MAXIMUM VOLUME.
• The volume of the headphones or monitor output is fixed.
• The volume is not displayed when operating the above disabled keys.
• VOLUME can be abbreviated to VOL.
No Power off by power button.
No Power off by remote control.
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 9
5) Volume fixed level [VOLUME FIXED LEVEL]
6) Remote control operation [RC BUTTON]
7) Main Unit Operation [PANEL BUTTON]
8) Menu operation [MENU BUTTON]
9) AV position fixed [AV POSITION FIXED]
Option
0 ~ 60 (loop disabled)
Default
20
Function
The volume is fixed to the adjusted value (the main unit’s speaker only).
Exception
• In the adjustment process, the volume can be set to any level regardless of this setting.
Remarks
• When setting VOLUME FIXED to “VARIABLE”, the setting cannot be changed.
• VOLUME can be abbreviated to VOL.
Option
“RESPOND”, “NO RESPOND” or “LIMITED” (loop enabled)
Default
RESPOND
Function
The operation of the remote control’s keys is set.
• When set to “NO RESPOND” the remote control’s keys in the normal state are disabled.
The POWER key (RECEPTION/STANDBY key) is also disabled.
• When set to “LIMITED”, only a part of keys (CHANNEL, etc.) is enabled and other keys are disabled. (POWER, 
VOLUME 
 
, CHANNEL 
 
, LIGHT CONTROL (BRIGHTNESS SENSOR), BROADCAST SELECT)
Exception
• The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel 
mode.
Remarks
The keys enabled when set to “LIMITED” correspond to those on the remote control for hotel; they differ from model 
to model.
Option
“RESPOND” or “NO RESPOND” (loop enabled)
Default
RESPOND
Function
NO RESPOND: The main unit’s keys are disabled excluding the POWER key (RECEPTION/STANDBY key).
Exception
• The start operation in the process mode, inspection mode or hotel mode is enabled regardless of this setting.
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel 
mode.
• For the main unit’s MENU key, menu operation is possible regardless of the setting during the initial setting when 
the power is turned on for the first time.
Option
“RESPOND” or “NO RESPOND” (loop enabled)
Default
RESPOND
Function
The MENU key on the main unit or remote control is disabled.
Exception
• The PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are enabled regardless of this setting.
• All the keys are enabled regardless of this setting while entering the process mode, inspection mode or hotel 
mode.
Key disabled when set 
other than default 
excluding the MENU key
All the direct transition keys to menu display (AUTO PRESET, MANUAL MEMORY and others)
Remarks
When set to “NO RESPOND”
• For the models with the MENU key on the main unit, menu operation is possible regardless of the setting during 
the initial setting when the power is turned on for the first time
Option
“VARIABLE” or “FIXED” (loop enabled)
Default
“VARIABLE”
Function
• When set to “FIXED”, the image adjustment and sound adjustment items in the menu are fixed in the selected 
state.
• When receiving “AV POSITION” of the remote control, only the actual state is displayed, and no setting is 
changed.
Remarks
• When receiving the sound select direct keys (AV POSITION key, OPC, DOLBY key, etc.), only the actual state is 
displayed; no setting is changed.
• Since the settings for the hotel mode are retained even after the personal data is initialized, each item for the AV 
position and image adjustment and each value for the sound adjustment are not initialized.
LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V
3 – 10
10)OSD display [ON SCREEN DISPLAY]
11)Start mode [INPUT MODE START]
Example of option: “NORMAL”
“TVD(002TV)”, “INPUT1”, “INPUT2”, “INPUT3”, “PC”, “HDMI1”, “HDMI2”, “HDMI3”, “INPUT8”
12)Input fixed [INPUT MODE FIXED]
13)Speaker ON/OFF selection [LOUD SPEAKER]
14)Remote control path through [RC PATH THROUGH]
Option
“YES”, “NO” or “LIMITED” (loop enabled)
“LIMITED” is looped only in case of need (destination).
Default
YES
Function
• When set to “NO”, the following OSD is not displayed.
Registration, setting, adjustment menu, channel call, volume bar, and input select
• When set to “LIMITED”, only a part of OSD is not displayed.
Key which may be 
enabled (Example of the 
confusing key)
* OK if simple input select occurs or the original state returns soon if left.
Key disabled when set 
other than default 
(example)
* The keys by which visibility of the screen or sound is changed cannot be used.
STILL IMAGE, SCREEN DISPLAY, OFF TIMER, AV POSITION, BRIGHTNESS SENSOR, SCREEN SIZE 
SELECT, AUTO PRESET, MANUAL MEMORY, IMAGE SELECT, SOUND SELECT, LANGUAGE
Remarks
• When set to “NO”,
The set time of OFF TIMER “SLEEP” is cleared.
When the card function is set to “NO”, all the functions including input select and direct keys are invalid.
Option
“NORMAL” or “Input source 1 (input selection or channel)” 
• • • (loop enabled)
Default
NORMAL
Function
The input source or channel to start when turning on the power is set.
If “NORMAL”, the content of the last memory is followed.
Remarks
• When set other than “NORMAL”,
Display of the channel setting menu and channel setting operation are prohibited.
• When set to “NORMAL”, “START MODE FIXED” is set to “VARIABLE” and selection is prohibited.
Option
“VARIABLE” “FIXED”, “AC CTRL” or “AC/RC CTRL” (loop enabled)
Default
VARIABLE
Function
When set to “FIXED”, switching to another channel or input is impossible after start-up in the set value of “INPUT 
MODE START”.
When set to “AC CTRL”, the unit starts in the set value of “INPUT MODE START” in the case of the ACON only.
When set to “AC/RC CTRL”, the unit starts in the set value of “INPUT MODE START”.
Key disabled when set 
To “FIXED” (example)
CHANNEL 
 
, DIRECT CHANNEL buttons, FLASHBACK, INPUT SELECT, TV/VIDEO, AUTO PRESET, MAN-
UAL MEMORY, i.LINK, DIRECT INPUT SELECT, ATV, DTV, EPG, RADIO
Remarks
• If the “START MODE” setting is “NORMAL”, this item cannot be set.
Set to “VARIABLE”.
• When set to “FIXED”
The channel setting menu and input selection menu in the menu are not displayed.
Option
“ON” or “OFF” (loop enabled)
Default
ON
Function
The sound from the speakers is not output even if the headphones are not used.
Remarks
• When the VOLUME UP/ DOWN key is pressed, the mute icon is displayed for 4 seconds.
• For the MUTE key and sound-related keys, caution is displayed.
• For the headphones and monitor output sound, normal operation is possible.
Option
“OFF”, “ON:TV RCE” or “ON:TV RCD” (loop enabled)
Default
OFF
Function
The signal received by the remote control’s light-receiving section is output to the blank pin (9pin) of RS232C.
Exception
• Even in the case of “ON:TV RCD”, the PROCESS MODE, INSPECTION MODE and HOTEL MODE keys are 
enabled.
• Even in the case of “ON: TV RCD”, all the keys are enabled while entering the PROCESS MODE, INSPECTION 
MODE and hotel mode.
Remarks
• The model always outputting and that impossible to output exist due to the structure of the hardware.

Download Sharp LC-46DH77E (serv.man4) Service Manual (Repair Manual)

Here you can view online and download Sharp LC-46DH77E (serv.man4) Service Manual in PDF. LC-46DH77E (serv.man4) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp LC-46DH77E (serv.man4) LCD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.