Thursday, April 30, 2015

SAMSUNG SYNCMASTER 732N - 932B SERVICE MODE AND POWER SUPPLY CIRCUIT

SAMSUNG  SYNCMASTER 732N - 932

LCD MONITOR 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

How to Display Service Function OSD
1. The value for brightness and contrast should be changed to zero.
2. Within 5 seconds, press the (Enter/Source) key.
3. Service function OSD will be displayed.
-If you want to disable the service function OSD, you will have to power off.
The service function OSD is based on a grid of 29 columns x 12 rows. The service function OSD consists of panel information, software version and MICOM checksum.

SERVICE MODE 
How to Control Service Function OSD
1. With the panel selected on OSD, whenever you press the right key, the base color will change to blue from "Panel" to "Upper Lamp", "Lower Lamp".
How to Control Service Function OSD
-After changing the panel or lamp, you must reset service function OSD.
-The case of panel change

After changing the panel, press the menu key within 5 seconds,. Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).
How to Control Service Function OSD
-In the case of Upper Lamp or Lower Lamp change
After changing the Upper Lamp or Lower Lamp,
1. Select the Upper Lamp or Lower Lamp
2. Press the Menu key within an 5 seconds.
Then, Ch. No and time will be reset to zero (selected item only).
How to execute DDC
After exchange the Main PBA, confirm below items
1. Open file.
2. Select Port #1.
3. Select DDC file.
4. Click, "Next" Button
1. PC color status check (Auto Color)
2. EDID Input (Analog and Digital)
3. Check the MCU Code
(After change MCU Code, Do Auto color )
4. Factory Reset.
1) Run DDC Manager MTI-2050.
2) Select a DDC file name.
Progtam : WinDDC BY SAMSUNG ELEC.Co. [Ver:4.65.12V] --- Modify : 20050425
DDC : 732N.ddc or 932B.ddc
3) Insert into DDC Manager Port 1 (analog) and make the DDC input as for the old dual model.
4) Insert into DDC Manager Port 2 (Digital) and make the DDC input.
1. Open file.
2. Select Port #1.
3. Select DDC file.
4. Click, "Next" Button
5. Type in the monitor serial number and press Enter.
*Repeat this step 2 to 5 times in digital inputs after the analog input.
How to execute MCU Code
Program Setting - Config Setting
1. Click Config Setting
2. Change SCL Signal at Pin Assignments
3. Set Device to Parallel
Change Batch File Path and DownLoad Code
4. Change the Code's Path to saved Path at your PC.
5. Save the Batch file.
6. Write Batch command
"batch batch file name.txt"
7. Click "Execute" Button
8. If command is "Successful" , Hard Power On/Off until LED is Off
- If command is "Error",
1. Hard Power Off
2. Write Command "forcesa"
3. Click "Execute" Button
4. Repeat again 7 to 9.
Automatic Color Adjustment
To input video, use 16 gray or any pattern using black and white.
1. Select english for OSD language.
2. Press the " (Enter/Source)" key for 5 seconds.
OSD Adjustment When Replacing Panel
1. Adjust brightness and contrast to 0. Then, press the (Enter/Source) key for 5 seconds. Service function OSD will appear on screen.
2. Press the + key to place the cursor on the panel. Press the menu key for 5 seconds.
OSD Adjustment When Replacing Lamp Only
1. Adjust brightness and contrast to 0. Then, press the exit key for 5 seconds. Service function OSD will appear on the screen.
2. Press the + key. Select upper lamp and press the menu key for 5 seconds. Then, select lower lamp and press the menu key for 5 seconds.
-Note : Please be sure to read the following instructions for details on service function.
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN

SONY KDS-50A3000 - KDS-55A3000 - KDS-60A3000 SERVICE MODE SELF DIAGNOSING AND POWER SUPPLY CIRCUIT

SONY KDS-50A3000 - KDS-55A3000 - KDS-60A3000 

SERVICE MODE SELF DIAGNOSING AND POWER SUPPLY CIRCUIT  


SELF-DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the POWER LED will automatically begin to flash. The number of times the LED fl ashes translates to a probable source of the problem. A definition of the POWER LED fl ash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom is
difficult to reproduced use the Remote Commander to display the record that is stored at the internal NVM to specify the cause of the failure. 
Diagnostic Test Indicators
When an error occurs, the POWER LED will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the POWER LED will identify the first of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest fl ashes is identified first.
Results for all of the following diagnostic items are displayed on screen. (No error has occurred if the screen displays a “0”.)
NUMBER OF TIMES
LED BLINKS
SELF CHECK CODE

DIAGNOSIS ITEM

POSSIBLE CAUSE

POSSIBLE SOLUTION

2 times
POW_OVP
Power OVP
7V is over voltage
Check CN6903 on G Board
3 times
POW_ERR1
Power Error
12V is not supplied
Check CN6903 on G Board
5 times


LAMP_DRV


Lamp Driver


Problem with the lamp driver


Check Power Supply (Ballast)
400V (CN6501 on G Board)
Check IC4001 on FB1A Board
6 times


COVER


Lamp Cover


Lamp cover is not securely
attached

Secure Lamp Door.
Verify harness is connected
to T Board.
7 times

TEMP_ERR

Temperature Over

Inner temperature is too high

Remove dust from fan and
ventilation is clear.
8 times
AUD_PROT
Audio Protect Error
Short in speaker line
Check A Board or replace speaker
9 times




FAN_ERR




Fan Error




Fan is not getting power.
Fan connector is not securely
attached.


Secure harness to fan.
Check CN4001 or CN5602 on FB1A
Board.
Check CN6900 on G Board.

10 times
DTT_ERR
Microprocessor Error
DTT_WDT (Watch Dog Timer)
Check FB1A Board
11 times


DEV_ERR
Device Error


I2C Communication Error


Check S2, H2, and C Boad and all
connection to the FB1A Board

LAMP-LED flashes

Lamp Error
Lamp needs to be replaced.
Change the lamp.

SELF-DIAGNOSTIC SELF CHECK SCREEN
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:

DISPLAY >Channel 5 > Volume - > POWER

CLEARING THE SELF-DIAGNOSTIC SCREEN
The self-diagnostic results displayed on the screen are not cleared automatically, therefore you should always check the self diagnostic screen during repairs. When you have completed the repairs, clear the self-diagnostic screen to reset the results to “0”.
Note: The self-diagnostic function will not be able to detect any subsequent faults after completion of the repairs unless the Self-Diagnostic result display is cleared to reset the results to “0”.
1. If the Self-Diagnostic screen is already displayed, proceed to step 3. If not, Power off (Set to Standby mode).
2. Press DISPLAY > Channel 5 > Volume - >POWER
3. Press Channel 8 > 0 The status resets to 0.
4. To exit the Self-Diagnostic screen, turn the power off.

                SERVICE MODE 
ACCESSING SERVICE ADJUSTMENT MODE
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 >  Volume + > POWER

VIEWING THE SERVICE MENUS
Use the Remote Commander to view the BE and Digital service menus options.
 To display the Service Menu that contains the Category you want to adjust, press JUMP on the Remote Commander.
ADJUSTING H/V CENTER
Check the picture horizontal/vertical center after replacing the Optics Unit Block or Rear Cover.
1. Check the H/V center using a 480i monoscope signal with the TV in “FULL’ model.
2. If the center is shifted, proceed to step 3.
3. Access the Service Menu by pressing the following buttons on the Remote Commander within a second:
DISPLAY > Channel > 5 > Volume + >TV POWER .
The service menu displays.
4. Press the JUMP button until the BEM micro service menu displays.

5. Press 2 until the 0016 TG category displays.
6. Press 1 until the 0003 VCENT item displays.
7. Press 3 to increase (shift VCENT up), or press 6 to decrease the value (shift VCENT down) until the correct adjustment is set.
8. Press 1 until the 0004 HCENT item displays.
9. Press 3 to increase (shift HCENT right), or press 6 to decrease the value (shift HCENT left) until the correct adjustment is set.
10. To write into memory, press MUTING then 0 on the Remote Commander.
EXITING SERVICE MODE
After completing the changes, exit service mode.
 To exit service mode, turn the power off by pressing POWER . Wait 2 minutes before restarting the set to allow the fans to completely shut down or the Service Menu will appear on the screen.

POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN

TCL 42E5300 MS82S-AP SERVICE MODE AND SOFTWARE UPDATE

TCL 42E5300 MS82S-AP 

SERVICE MODE AND SOFTWARE UPDATE 

SERVICE MODE
Accessing way:
a. In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 9, 7, 3, 5 consecutively.
b. When the FAC HOTKEY item of Factory Menu is enabled (ON), press Return button of remote control.
ADC Menu
Press the UP DOWN button in remote control to select certainitem and RIGHT AND LEFT to change the value of ADC data or start ADC calibration.
Notes: Only YPBPR and RGB source should be calibrated.
CLICK ON THE IMAGE TOP ZOOM IN

White Balance menu
Press the UP DOWN button in remote control to select certain item and RIGHT AND LEFT to adjust White Balance
CLICK ON THE IMAGE TOP ZOOM IN

Factory Main Menu
Accessing way:
1. In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 1, 9, 5, 0 consecutively.
 2. When the DESIGN HOTKEY item of Design Menu is enabled (ON), press Return button of remote control.
Press the UP DOWN button in remote control to select certain item and RIGHT AND LEFT to toggle among or execute the available options.
CLICK ON THE IMAGE TOP ZOOM IN

SHOP MENU
Contain many options which can be chosen according to the requirements of customers as default settings when leave factory. Press the UP DOWN button in remote control to select certain item and RIGHT AND LEFT to toggle among the available options.
CLICK ON THE IMAGE TOP ZOOM IN
Steps of debugging
According to the requirement of order, we suggest take the below steps to finish the appropriate settings.
A. Enter the Factory Menu, enable FAC HOTKEY
B. Check the version of software, release date displayed at the bottom of Factory Menu. If the information is correct, you can ignore step C and D.
C. Enter Factory Main Menu, choose SERVICE MENU->PROJECT ID, choose corresponding Project ID number of the product (Please refer to the description in BOM about Project ID number).
D. Return to Factory Menu, check the Product model.
E.Choose Factory Menu-> NVM RESET and press and wait until prompt OK appears.
F. Restart the set G according to the requirement of order, set the items of Shop Menu and Hotel Menu etc.
H. After aging under normal temperature, calibrate ADC and adjust white balance. I choose Factory Menu-> SHOP INIT and press button of remote control to initialize the set.
Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default. Therefore, if order requires hotel function, it is necessary to enable hotel function by set Factory Main Menu-> Service Menu->HOTEL ENABLE to ON.
White Balance adjustment (Manual)
Before adjustment, you must ensure Color Analyzer has been calibrated. Only AV1, YPBPR, VGA , HDMI 1 need to be adjusted. It is necessary to adjustment HDMI 1 firstly.
a. Signal and generator The pattern of the signal should be used are White (Chroma2329 pattern113) and Grey (pattern 114).The format of signal are respectively 720p for HDMI1 (Chroma2329 Timing 69), NTSC for AV1 (Chroma2329 Timing 37),1024×768@60Hz (Chroma2329 Timing 14) for VGA and 720p (Chroma2329 Timing 79)for YPBPR.
b. Steps of adjustment
1)  Enter the factory menu->WHITE BALANCE, select source HDMI 1 and COLORTEMP normal.
2) Input grey signal in 720p format
3) Change R OFFSET and B OFFSET to make sure the value of color coordination equal to the value required by enterprise standard (x, y).
4) Input white signal in 720p format
5) Change R Gain and B Gain to make sure the value of color coordination equal to (x, y).
6) Repeat step 2>5 until both of the value of color coordination of white and grey equal to (x, y). In addition to select COLORTEMP COOL/WARM, the adjustment method of COOL and WARM color temperature is same with that of NORMAL.

ADC Calibration and White Balance Adjustment (automatic)
The process of adjusting ADC and White Balance automatically is out of the range of this file. Please refer to the relevant technical file of HuiZhou factory of TCL.
Software upgrade through USB disk
1) Please ensure the software you are using has a correct file name TCL_MS82_UPDATE.bin, then copy it to the root directory of a USB disk.
2) Insert the USB disk to the USB socket of the set for which you are going to upgrade program.
3) Enter the Factory Menu (you can choose either a or b way below) a. In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 9, 7, 3, 5 consecutively. b. When the Factory hotkey item of Factory Menu is enabled (ON), press Return button of remote control.
4) select USB UPDATE, press RIGHT Bbutton of remote control, a pop menu will appear prompting whether start upgradeor not. Press Yes to start upgrade, press No to canel. Please wait patiently until the set restart automatically after upgrade. Do not cut off the power supply during the process.
Check software version, release date and Project ID 
After upgrading, sometimes you may not certain whether the new software has been successfully updated or not. In this case, you can check the software version and release date in Factory Main Menu to make sure the success of upgrading. In addition, for the convenience of software management, many models of same chassis may share a same software, but are allocated with different Project ID. In another words, every model has its unique Project ID. Obviously, Both software version and Project ID are highly critical to ensure the set work properly. Therefore, after upgrading software,we suggest you check these information by following method.
1) Enter the Factory Main Menu(you can choose either a or b way below a In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 1, 9 5, 0 consecutively. b. When the DESIGN HOTKEY item of Factory Main Menu is enabled (ON), press Return button of remote control.
2) Check the version of software, release date displayed at the bottom of Factory
Main Menu. If the information is correct, you can ignore step C and D.
3) choose SERVICE MENU->PROJECT ID, choose corresponding Project ID number of the product (Please refer to the description in BOM about Project ID number).
4) choose Factory Menu and press OK button of the remote. Next, select NVM RESET and press and wait until prompt OK appears. 5) choose SHOP INIT and press button of remote control to initialize the set.
Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default. Therefore, if order requires hotel function, it is necessary to enable hotel function by set Factory Main Menu-> Service Menu->HOTEL ENABLE to ON.
 6) restart the set.

Tuesday, April 28, 2015

SAMSUNG UN46C9000ZF - UN55C9000ZF SERVICE MODE AND LED DRIVER

SAMSUNG UN46C9000ZF - UN55C9000ZF 

3D EDG LED TV

SERVICE MODE AND LED DRIVER 

Chassis : N99A

UC9000 PD BOARD DIAGNOSIS

1. General PD board Diagnosis
Disconnect the wire between PD board and Main board.
Short Circuit 22Pin and 24pin of CNM801
If the BLU on , we can consider PD board is acting correctly.
2. LED Driver output diagnosis
Measure voltage at CD477 or CD437 which are criteria for judgement
Measure voltage at CD403 or CD418 which are criteria for judgement

General Alignment instruction
1. Usually, a color LED-TV needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers, do not allow the marker generator to distort test result.
5. Connect the TV only to an AC power source with voltage and frequency as specified on
the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
that the power cord is disconnected before replacing any parts.
7. To protect against shock hazard, use an isolation transformer.
SERVICE MODE 
To enter ‘Service Mode’ Press the remote -control keys in this sequence :
- If you do not have Factory remote – control.

Power OFF > MUTE > 1 > 8 > 2 > Power On

How to Access Service Mode
Using the Customer Remote
1. Turn the power off and set to stand-by mode
2. Press the remote buttons in this order; MUTE-1-8-2-POWER ON to turn the set on.
3. The set turns on and enters service mode. This may take approximately 20 seconds.
4. Press the Power button to exit and store data in memory.
- If you fail to enter service mode, repeat steps 1 and 2 above.
Using the Factory Remote
1. Press the 'info'+'factory' key of your Factory Remote.
2. The set enters service mode right away.
Buttons operations withn Service Mode
Menu >  Full Menu Display/Move to Parent Menu
Direction Keys UP / DOWN  >  Item Selection by Moving the Cursor
Direction Keys RIGHT / LEFT  > Data Increase / Decrease for the Selected Item
Source  > Cycles through the active input source that are connected to the unit.
How to Access ‘EDID SUCCESS’ Mode
At initial SERVICE MODE DISPLAY state, you’ll see ‘EDID SUCCESS’.
- If not, go to
Control  > EDID
And follow the procedure.
1. Set ON at EDID ON/OFF menu.
At 2. EDID WRITE ALL menu, press RIGHT key of the remote control. After few seconds Success will appear.
3. If Failure appears, remove the PC cable and HDMI cable that connected to TV. And try it again.
4. If the problem still exists, go to HDMI EDID Ver menu, and change the HDMI version to HDMI 1.2 or HDMI 1.3.
5. Change the Main Board if same problem occurs.

Monday, April 27, 2015

SONY KDL KDL-32BX355 -40BX455 - KDL-46BX455 SERVICE MODE AND LED BLINKING

 SONY  KDL-32BX355 -40BX455 - KDL-46BX455 



SERVICE MODE AND LED BLINKING 

AZ3TK Chassis

SELF DIAGNOSIS FUNCTION
Critical voltages and circuit operations are monitored by the CPU on the Main Board. If an error is detected the Self Diagnosis function in the TV will force the TV to shut down by the CPU. The monitored circuit in which the fault occurred will automatically cause the CPU to blink the Standby LED in groups of repeating sequences. The number of times the Standby LED blinks indicates the possible cause of the problem. Not all of the available protect codes are used in every model. For example, models that don’t have the local dimming feature do not use the 4X blink error as this circuit is found in models that are backlit with fluorescent lamps. The information in this section provides guidance in locating the possible component causing the shutdown.

VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the error that occurred. This is helpful in confirming past occurrences of an error, and for determining if an error is intermittent when the customer is not sure what is causing the television to shut down. If the screen displays a “0”, no error has occurred. You must got into Service Mode to access the Self Check menu.
1. TV must be in Standby mode. (Power On).
2. Press the following buttons on the Remote Commander within a second of each other:

LEFT ARROW > RIGHT ARROW > MUTE > ENTER 

>MUTE > VOLUME +

3. To access the Self diagnosis history page, press DOWN ARROW  until Self diagnosis history is highlighted, and then press ENTER.
4. Review the information to determine the most likely source of the error.
5. To exit the Self Check, press MENU
2X Blink - Main Power Error
A loss of REG12V from the power supply triggers this protect event. The usual cause is a failure of the main switching supply. In some instances, excessive loading on the secondary supply lines can cause the switching regulator to stop, or fail again, if a replacement board is installed.
3X Blink- DC Regulator/Audio Error
The REG 5V and D3.3V source originating on the Main Board is monitored for low-voltage conditions by the CPU. A failure causing a 3X shutdown requires replacing the Main Board.
4X Blink – Balancer Error
NOT USED IN THIS MODEL SERIES
The 4X error code is only used on models incorporating local dimming LED  backlighting. If a failure occurs on the LD board or one of the LED’s fails in the panel the TV will shut down and display this diagnostic code. Models using conventional non-local dimming LED backlighting do not utilize this error code.
5X Blink - TCON Error/Panel Error
The 5X blink protection mode indicates a communications error with the timing control circuits (TCON Board) has occurred. If the TCON Board is available for replacement, replace it, if not, replace the LCD Panel Assembly. In rare cases a loose or defective LVDS cable could also be the cause.
6X Blink - Backlight Converter System Failure
If the inverter circuits fails to generate high voltage or one or more of the backlight lamps fails to light, the television will shut down and display this diagnostics error. Observing for the presence of backlighting is crucial in determining which component is likely at fault. If the backlights turn on before the 6X shutdown occurs, it is safe to assume that the inverter circuits are functioning and one of the lamps failed to ignite. Replacing the LCD Panel assembly is necessary. If the backlights never turn on before the 6X shutdown, the Inverter MT Board has failed. If this board is available for replacement, replace it, if not, replace the LCD Panel Assembly.
7X Blink - Temperature Failure
A digital thermometer IC located on the Main Board provides a temperature reading of the chassis and LCD panel. If the temperature exceeds a predetermined point the TV will shut down. If this problem occurs immediately at turn-on, the temperature sensing IC has failed and replacing the main board is required. If this occurs after the TV has been running for a while, check for ventilation issues that could cause the TV to run hotter than normal.
SERVICE MODE
ACCESSING SERVICE ADJUSTMENT MODE
Use the following information after replacing the Main Board or the LCD Panel to ensure all features of the TV are available.
1. TV must be in Standby mode. (Power On).
2. Press the following buttons on the Remote Commander within a second of each other:

LEFT ARROW > RIGHT ARROW > MUTE > ENTER 

>MUTE > VOLUME +

COMPLETING SERVICE REQUIREMENTS WHEN REPLACING THE MAIN BOARD
The following must be performed after replacing the Main Board to ensure that all of the features for the TV will be available.
# Viewing the Status Information
# Adding the Serial Number
# Selecting the Model Name
VIEWING THE STATUS INFORMATION
After replacing the Main Board, LCD Panel, or TCON Board, you MUST UPDATE the SOFTWARE to the latest version. Verify the latest software is installed before proceeding to the service adjustments.
3. Press DOWN ARROW until Status Information is selected, then press ENTER.
4. Verify the latest software version is installed.
5. Do one of the following:
a. If the latest software is installed, proceed to Adding the Serial
Number.
b. If the latest software is not installed, update the software and then proceed to Adding the Serial Number.
ADDING THE SERIAL NUMBER
Verify before proceeding to the next step:
Verified Status Information
1. TV must be in Standby mode. (Power On).
2. Press the following buttons on the Remote Commander within a second of each other:

LEFT ARROW > RIGHT ARROW > MUTE > ENTER 

>MUTE > VOLUME +

3. Press DOWN ARROW until Serial Number Edit is selected, and then press ENTER .
4. Locate the serial number for the TV on the side of the Rear Cover of the TV.
5. Using the Remote Commander, enter the correct serial number.
6. Proceed to Selecting the Model Name.
SELECTING THE MODEL NAME
Verify before proceeding to the next step:
#Verified Status Information
#Added the Serial Number
7. From the Service Mode menu, press DOWN ARROW until Model Name Edit is selected, and then press ENTER.
8. Using the Remote Commander, enter the correct Model Name.
9. To save the change, press ENTER .
10. To exit the Self Check, press MENU .
CHANGING THE LVDS SPECTRUM
Verify before proceeding to the next step:
# Verified Status Information
6. Press DOWN ARROW until LVDS Spectrum (%) is selected.
7. Press RIGHT or LEFT ARROW  to change the data value.
8. Proceed to Selecting the LCD Panel.
SELECTING THE LCD PANEL
Verify before proceeding to the next step:
#Verified Status Information
#Changed the LVDS Spectrum
9. Press DOWN ARROW until Panel Selection is selected.
10. Press RIGHT or LEFT ARROW   to select the correct panel for the model being repaired.
11. To save the changes, press UP ARROW until the Back is selected, then press ENTER .