How
to get into adjustment mode or the Service Mode – How to upgrade installed
programs - Initilization
– reset – adjustment mode and adjusting procedure - Sharp LC30HV4*
American TV standard NTSC system
UPGRADING THE INSTALLED PROGRAMS
Programs
installed in the product are mainly divided into the following two categories:
Main programs (for AVC system)
Monitoring program (for display)
Main programs (for AVC system)
Monitoring program (for display)
CAUTON:
Exercise great care to hide the procedure in entering the in-process adjustment
mode from the customer. Inadvertent setting changes in this mode may cause a
fatal error resulting in a program being unrecoverable.
Tools required
PC
A Windows 95/98/me/2000/XP PC that has a COM port (RS-232C).
A USB-R232C converter will be acceptable provided that it is appropriately set and has PC compatibility.
RS-232C cross cable
Interlink cable is also acceptable.
Preparations
Rewriting a program needs the product to enter the in-process adjustment mode.
1) The rewriting software is supplied in the form of an exe file named e.g., "MAIN_2002_10_10A.exe" (provisional).
Create a directory on a HD and copy the software into the directory.
2) Double-click the file. The file will be self-extracted. Check the extracted file against the documentation accompanying with the software.
3) Connect the AVC System and the display unit with each other and make them ready for operation (make sure the power LEDs of the AVC System and display unit turn red).
4) Use an RS-232C cable to connect the PC to the AVC System.
5) Exercise great care to hide the procedure in entering the in-process adjustment mode from the customer. Press the MAIN POWER button while holding down the volume DOWN key and the INPUT key on the display unit simultaneously.
If blue characters appear on the display, the system has entered the in-process adjustment mode successfully.
If not (the normal activation screen opens), retry.
Rewriting
the main program
1) In the in-process adjustment mode, press the Channel Up key on the remote
controller. You will move to page ("7/15" will appear on the upper
left corner of the screen).
2) Make sure CENTER PROG UPDATE on page 7/15 is highlighted. (It checks that "CENTER PROG UPDATE" on page 7/15 is chosen.)
3) Use the VOLUME -/+ keys to change OFF to ON.
4) Press the ENTER key on the remote controller. Characters on the screen will disappear and the screen blacks out.
5) Double-click the batch file specified in the document accompanying with the software.
6) A black window (MS-DOS window) will open and rewriting starts automatically.
Rewiring of the main program is now complete. Unplug the AC cord from the AVC System and turn off the system and then on again.
7) Enter the in-process adjustment mode and make sure the version information on the CENTER Version, OSD Version and CVIC Version lines on page 1/15 has been updated.
2) Make sure CENTER PROG UPDATE on page 7/15 is highlighted. (It checks that "CENTER PROG UPDATE" on page 7/15 is chosen.)
3) Use the VOLUME -/+ keys to change OFF to ON.
4) Press the ENTER key on the remote controller. Characters on the screen will disappear and the screen blacks out.
5) Double-click the batch file specified in the document accompanying with the software.
6) A black window (MS-DOS window) will open and rewriting starts automatically.
Rewiring of the main program is now complete. Unplug the AC cord from the AVC System and turn off the system and then on again.
7) Enter the in-process adjustment mode and make sure the version information on the CENTER Version, OSD Version and CVIC Version lines on page 1/15 has been updated.
Adjusting
Mode
The controller IC can be adjusted in this mode.
Adjustment is done while controlling the setting of the resistor corresponding to the selected adjustment item.
When monitor is used independently, it is adjusted using the OSD simple display function incorporated in LCD controller.
The OSD function of panel link receiver (SIL861) is used for adjustment of the independent monitor.
Adjustment is done while controlling the setting of the resistor corresponding to the selected adjustment item.
When monitor is used independently, it is adjusted using the OSD simple display function incorporated in LCD controller.
The OSD function of panel link receiver (SIL861) is used for adjustment of the independent monitor.
Entry
to the mode
1) When cable is not connected (independent mode), follow the steps below.
a) When power switch is turned on, press the main unit INPUT and VOL DOWN keys simultaneously.
b) Press the remote controller's process adjustment key (R/C code: 40h) / process adjustment mode 2 key (R/C code: 31h).
2) When not in independent mode, follow the steps below.
a) When power switch is turned on, press the main unit CH DOWN and VOL UP keys simultaneously.
b) Press the remote controller's process adjustment mode 2 key.
1) When cable is not connected (independent mode), follow the steps below.
a) When power switch is turned on, press the main unit INPUT and VOL DOWN keys simultaneously.
b) Press the remote controller's process adjustment key (R/C code: 40h) / process adjustment mode 2 key (R/C code: 31h).
2) When not in independent mode, follow the steps below.
a) When power switch is turned on, press the main unit CH DOWN and VOL UP keys simultaneously.
b) Press the remote controller's process adjustment mode 2 key.
To Exit
from the mode
Turn off the power.
Press the remote controller's process adjustment mode 2 key.
Turn off the power.
Press the remote controller's process adjustment mode 2 key.
First
layer display
The third line shows the title. The 5th line and below show the items. Microprocessor's version number appears in the 16th line.
The third line shows the title. The 5th line and below show the items. Microprocessor's version number appears in the 16th line.
Second
layer display (Adjustment item display)
A single page shows up to 10 adjustment items (or 14 lines).
The third line shows the title and the screen mode selected in MODE items (only when LCD is selected).
The 5th line shows the item. Microprocessor's version number appears in the 16th line.
Example) 1.00 => 1 00
Setting is shown in decimal number.
A single page shows up to 10 adjustment items (or 14 lines).
The third line shows the title and the screen mode selected in MODE items (only when LCD is selected).
The 5th line shows the item. Microprocessor's version number appears in the 16th line.
Example) 1.00 => 1 00
Setting is shown in decimal number.
Changing
data
In "adjustment item display", the items pointed by cursor can be changed using VOL UP/DOWN key.(Holding down the key is effective.)
For the items in "LCD DATA", select the item and hit ENTER key. The ten's digit (leftmost digit) in the address changes to red (others in green). Data change using VOL UP/DOWN key is enabled.
To move to the next digit, press CH UP key (or rightward cursor key). To go back to the previous digit, press CH DOWN key (or leftward cursor key). Thus, 4 digits data can be entered.
When CH UP key is pressed while in rightmost digit, the cursor moves to the leftmost digit. When CH DOWN key is pressed while in leftmost digit, the cursor moves to the rightmost digit.
After address data adjustment, press ENTER key to exit from 4-digit adjustment and change the entire "LCD DATA" line to red letters. (Same status as item selection).
In "adjustment item display", the items pointed by cursor can be changed using VOL UP/DOWN key.(Holding down the key is effective.)
For the items in "LCD DATA", select the item and hit ENTER key. The ten's digit (leftmost digit) in the address changes to red (others in green). Data change using VOL UP/DOWN key is enabled.
To move to the next digit, press CH UP key (or rightward cursor key). To go back to the previous digit, press CH DOWN key (or leftward cursor key). Thus, 4 digits data can be entered.
When CH UP key is pressed while in rightmost digit, the cursor moves to the leftmost digit. When CH DOWN key is pressed while in leftmost digit, the cursor moves to the rightmost digit.
After address data adjustment, press ENTER key to exit from 4-digit adjustment and change the entire "LCD DATA" line to red letters. (Same status as item selection).
Data UP/DOWN
For the item for which OSD display is available, switch the display.
Adjust the data with UP/DOWN operation. (Any value beyond the limit is replaced by the limit value.)
Output data processing
Data transmission for every UP/DOWN operation (Data related to peripheral controller IC)
Execution of the last memory data when key is off
While the key is held down, the second step is performed approx. 500ms after the key operation and, after this, every single step of UP/DOWN is carried out sequentially at 135ms interval.
Cursor UP/DOWN
Select the adjustment item by pointing it with the cursor.
When upward cursor movement is done while the cursor is at the top item, the cursor goes to the bottom item.
(In the case of multiple pages, the cursor goes to the bottom item on the previous page.)
When downward cursor movement is done while the cursor is at the bottom item, the cursor goes to the top item.
(In the case of multiple pages, the cursor goes to the top item on the next page.)
While the key is held down, the second step is performed approx. 500ms after the key operation and, after this, every single step of UP/DOWN is carried out sequentially at 135ms interval.
ADJUSTMENT PROCEDURES for the DISPLAY
1) +B adjustment (LCD Control PWB: R4648)
1. Receive NTSC standard color bar signal.
2. Connect digital voltmeter to TP4602 and adjust to the specified value.
Specification: 13.00 ± 0.05V
2) Common bias adjustment
Make this adjustment each for "50 Hz", "60 Hz" and "PC". Select the input signal according to the indication onscreen.
1. Go to "Adjustment process mode".
2. On the LCD, select "14" of "PATTERN 1", dot inversion flicker pattern 2.
3. Then, select "COM BIAS" on the LCD.
4. Set the value so that the flicker on the screen is minimized.
Note: Apply this adjustment after for at least 30 min.
3) Background adjustment
1. Select video standard, and confirm the indication that the unit is preset to the standard.
2. At video input, receive the window pattern signal having left 80% WHITE (200/255) and right 20% WHITE (48/255).
3. Set the screen size to the full mode.
4. Go to "Adjustment process mode".
5. Adjust "R OFFSET", "G OFFSET" and "B OFFSET" in "SIL861" so that left side 80% WHITE window pattern is set to the specified value.
6. Adjust "R GAMMA", "G GAMMA" and "B GAMMA" in "SIL861" so that right side 20% WHITE window pattern is set to the specified value.
Specification: x = 0.270 y = 0.287 (80% WHITE) x= 0.278 y = 0.285 (20% WHITE) [Minolta CA-110]
Note: Apply this adjustment after for at least 30 min.
4)
Initialization
1. Go to "Adjustment process mode".
2. Select "1" thru "3" of "CLR MODE" in "TEST".
Setting range: 0 Normal
1 Initial setting (User clear: Factory setting)
2 Initial setting (All clear) Full initialization of EEPROM (except for ROM area)
3 Full initialization of Configuration EEPROM
3. Move the cursor down by one line.
4. Press "VOL UP" key and change the display from "WAIT" to "SEND" (write).
5. Do not shut down power while the display is "SEND".
6. When the writing is finished, the display changes from "SEND" to "WAIT".
5) Resetting lamp error counter
1. Go to "Adjustment process mode".
2. Select "L ERR RESET" in "TEST".
3. Reset the data to "0".
[L ERR RESET]
Function: Reset of fluorescent lamp error counter
It resets the times of fluorescent lamp errors and clears the last value in the memory.
Indication range: 0-5 (Fluorescent lamp errors)
(When lamp error exceeds 5 times, power supply is disabled. Resetting is required in this case.)
2. Select "1" thru "3" of "CLR MODE" in "TEST".
Setting range: 0 Normal
1 Initial setting (User clear: Factory setting)
2 Initial setting (All clear) Full initialization of EEPROM (except for ROM area)
3 Full initialization of Configuration EEPROM
3. Move the cursor down by one line.
4. Press "VOL UP" key and change the display from "WAIT" to "SEND" (write).
5. Do not shut down power while the display is "SEND".
6. When the writing is finished, the display changes from "SEND" to "WAIT".
5) Resetting lamp error counter
1. Go to "Adjustment process mode".
2. Select "L ERR RESET" in "TEST".
3. Reset the data to "0".
[L ERR RESET]
Function: Reset of fluorescent lamp error counter
It resets the times of fluorescent lamp errors and clears the last value in the memory.
Indication range: 0-5 (Fluorescent lamp errors)
(When lamp error exceeds 5 times, power supply is disabled. Resetting is required in this case.)
