SHARP FULL LED BACK LIGHT TV - LC-32LE600E – Service mode – ROM Write – Vcom adjustment – white balance adjustment – Initializing - factory rest – LED television repair and service

Category: LED Television Repair and Service 

Contents of this article 

• How to access service mode 
• Factory reset procedure 
• White balance adjustment 
• Software Upgrade procedure 

SHARP LC-32LE600E

ADJUSTMENT PROCEDURE
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, E2PROM (IC8455).

MAIN UNIT: DUNTKF111FM11

NOTE: [Caution when replacing ICs in the main unit (IC501)]
The above ICs are EEPROMs storing the EDID data of PC data. Before replacing the relevant part, procure the following parts in which the data have been rewritten.

IC501 RH-iXC697WJQZS EDID (PC) ANALOG-RGB

Entering and exiting the adjustment process mode
1. Press the “MAIN POWER” key on the set of running TV set to force power off. (Or, unplug the AC power cord of running TV set to force power off.)
2. While holding down the “ (VOLUME -)” and “INPUT” keys on the set at once, press the “MAIN POWER” key on the set to turn on the power. The letter “K” appears on the screen.
3. Next, hold down the “ (VOLUME -)” and “P (DOWN )” keys on the set at once.
Multiple lines of orange 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 start up), retry the procedure.
4. To exit the adjustment process mode after the adjustment is done, press the MAIN POWER key and turn off a power supply. or unplug the AC power cord to force power off.
(When the power is turned off with the remote controller, once unplug the AC power cord and wait for 10 seconds before plug it in again.)

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.

Special features
1. STANDBY CAUSE (Page 1/8)
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.
ROM Writing (HDMI_EDID)
1. EDID writing
1) Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.
2) Start the set with the set connected with the personal computer with the RS232C cross cable.
3) Start the terminal software. (The free ware readily available on the Internet will do.)
4) Make the following settings.

Baud rate : 9600 bps
Data LENGTH : 8bit
Parity bit : none
Stop bit : 1 bit
Flow control : none

5) Input following commands to terminal software.

“KRSW0001”
PC replies “ERR” (you should ignore this replay)
“KKT10037”
PC replies “OK”
“WRED0000”
PC replies “OK”... At that time, EDID writing finish with success.

6) It usually returns to a state by AC-OFF/ON.
Disconnect and connect AC cable, then TV wakes up with normal mode.

2. Software version

(1) Mainmicon Software Ver. 1.14 *1
(2) Boot version of mainmicon Software Ver. 1.12 *1
(3) T-CON Monitor micon Software Ver. 1.0 *1
(4) CPLD Version XX *1

*1 Please refer to the change report document for the latest version (Issued it to SEES)

Inch Setting

1) Inch Setting with adjustment process mode.
2) Enter the adjustment process mode, refering to the 2nd item.
3) By using P ( UP/DOWN ) key of R/C, Move the cursor to “INCH SIZE” on page 1/8.
4) Select inch size 32/40/46 with the Volume (+)/(-) key of remote control.
5) Press the “OK” key of remote control.
6) After a while, If “*** OK ***” is displayed, the setting is completed.

COM-BIAS Adjustment

1) COM-BIAS Adjustment with adjustment process mode.
2) Enter to the adjustment process mode, refering to the 2nd item.
3) By using UP/DOWN  key and P ( UP/DOWN ) key of R/C, Move the cursor to “COMBIAS” on page 8/8.
4) Press the “OK” key. then, you can check that the pattern for adjustment is displayed.
5) Adjust so that the flicker for the central part of a screen becomes the minimum using the volume (+)/(-) key of R/C.
6) In order to exit from this process, press the “OK” key of remote control again.

White Balance Adjustment
Adjustment gradation values (INFO) appear on page 8/8 3-4 lines of process adjustment, and adjustment initial values (offset value) appear on pages
8/8 5-10 lines. For white balance adjustment, adjust the offset values on pages 8/8 5-10 lines.
1. Preparation
1) Luminance meter reference device :Minolta CA-210
2) Condition of the unit for adjustment and inspection:Modulated light: MAX (+16)

2. Setting
1) The luminance meter is set to the center of the screen of the set.
2) In “INCH SIZE” on the process adjustment page 1/8, sets it to the size of each panel with the LEFT/RIGHT key to R/C.
3. Adjustment method
Check that the values of point A and B on page 8/8 of process adjustment are set as below. If not, change them accordingly.

WB Point A 1280 WB Point B 3712

1) Display the current adjustment status at point B. (Page 8/8 of process adjustment) The display for checking the adjustment status is toggled by pressing the “OK” button on the remote control.
(Normal OSD display > “B” > display for check (OSD disappears) >  “B” > normal OSD display > ...)
2) Read the value of the luminance meter.
3) Change Point B ADJ R/Point B ADJ B (Adjustment offset value) on page 8/8 of process adjustment so that the values of the luminance meter approach x = 0.272 and y = 0.277. (Basically, Point B ADJ G is not changed.)
4) Follow Point A as well as item 3).
Change Point A ADJ R/Point A ADJ B (Adjustment offset value) on page 8/8 of process adjustment so that the values of the luminance meter approach x = 0.272 and y = 0.277.
5) Select “WB WRITE” on page 8/8 in the process, set “YES”, and press the OK key of remote control. The adjustment value is written. and then shut down the AC power.
# Initial value of RGB of point B: 3712
# Initial value of RGB of point A: based on calculated of each G point
6) [Adjustment value]
* Teaching set send by engineering dept is set as reference

4. Adjustment reference standard value.

	Level	Spec Data	Adjustment Spec	Inspection Spec
Point A ref. value	1280	x=0.272 y=0.277	±0.001	±0.002
Point B ref. value	3712	x=0.272 y=0.277	±0.002	±0.004

Adjustment spec ± 0.004

Adjustment spec ± 0.002
Inspection spec ± 0.006 (point 1)
Inspection spec ± 0.004 (Excluding the above-mentioned)

Initialization to factory settings
After a factory setting, It ends with the AC power supply OFF.
After a factory settings, Do not turn on the power supply. If you turn on the power supply. execute the factory settings again.
Do not do power supply OFF by remote control.

[Factory setting with adjustment process mode]
# Enter the adjustment process mode.
# Move the cursor to “INDUSTRY INIT” on page 2/8.
# Use the LEFT /RIGHT key of R/C to select a region from “YES (E)/YES (I)/YES (F)/YES (R)” and press the [OK] key.
# “EXECUTING” display appears and initialization starts.
# After a while, “OK” display appears, the setting is completed.
When succeeding: The background color becomes green.
When failing: The background color becomes red.

Upgrading the software
1. Unplug AC cable from outlet.
2. Insert an USB memory that is written a new software to USB port.
3. Keep pressing POWER button on LCD panel and plug AC cable to outlet.
4. POWER LED on panel automatically start blinking.
(POWER LED: Both red and green light blinking with sync. In other word, it looks, /blinking period is short ... 2 cycle - light - out - light - out / 1 sec.)
5. After a while (about 2 min.) following screen appears. Indicated percentage means progress of version up.

6. After the progress becomes 100%, then STATUS area changes “UPGRADE COMPLETE” as followings (POWER LED: Only green blinks slowly ...
2 sec./tim

If above screen is not appeared and “UPGRADE FAILURE” is indicated in STATUS area, at that time update failure. Please repeat from step 1.
(POWER LED: Only red blinks slowly ... 2 sec./time).

7. Unplug AC cable from outlet.
8. Remove USB memory from USB port.