Haier LET19C430 LED TV MSD306 Chassis - software update, disassemble procedure How to enter the service mode - troubleshooting

J2-Pin 3: Back-light on/off:
The system can turn on or turn off the backlight of TFT LED Panel through the power supply unit path.
J2-Pin 5: System power on / standby
System board will use this pin to control system power.
J2-Pin 2: Control the luminance of back-light
The system can generate the PWN signal to control the strength of TFT LED Panel’s backlight through this connector.

Power Board voltage details

Display the signal Functions

How to disassemble the TV

Remove the Pedestal

Remove the Back Cover

Remove the adhesive tape

Remove the adhesive tape indicated on the figure above.

Remove the front frame on the figure above.

Remove the Terminal Bracket

Remove the power module and then Remove the Main board

Remove the speaker

Take out the speaker.

Remove the remote control sensor board.  Remove the screw, take out the remote control sensor board.

This TV provides one group of AV ,one group of YPbPr and one SCART for convenient connection to VCR,DVD or other video equipment.

When the source device(DVD player or Set Top Box) supports HDM

can be connected to the following appliances: VCR, multi disc player, DVD, camcorder, video game or stereo system, etc.....
YPbPr can support these video formats:480i,576i,480p,576p,720p,1080i.

If the source device supports Auto HDMI function, the output resolution of the source device will be automatically set to 1280x720p.
If the source device does not support Auto HDMI, you need to set the output resolution appropriately.
To get the best picture quality, adjust the output resolution of the source device to 1280x720p.
Select HDMI input source in input source option of Select Main source menu.

When the source device(DVD player or Set Top Box) supports DVI

Connect the source device to HDMI port of this TV with a HDMI-to-DVI cable(not supplied with this product).
2. A separated audio connection is necessary.
3. If the source device has an analog audio output connector, connect the source device audio output to DVI Audio In port located on the PC port.

If the source device supports Auto DVI function, the output resolution of the source device will be automatically set to 1280x720p.
If the source device does not support Auto DVI, you need to set the output resolution appropriately.
To get the best picture quality, adjust the output resolution of the source device to 1280x720p.
Press the INPUT button to select HDMI input source in input source option of Select Main source menu.

1.SOURCE Display the input source menu.
2.MENUDisplay main MENU.
3.CH+/CH-:In TV mode press“CH+”or“CH-”to change the channel up and down.In MENU mode, press “CH+”or“CH-”to select items .In standby mode, press“CH+”or“CH-”to turn on the TV.
4.VOL+/VOL-:Adjust sound level.In MENU mode, press“VOL+”or“VOL-”to adjust the item that you selected.
5. STANDBY : Press this button to turn the unit ON from STANDBY mode. Press it again to turn the set back to STANDBY.

Setting up the Remote Control

OPTION MENU

The fifth item of the MENU is the OPTION MENU. You can adjust the Menu language, Audio language,Subtitle language etc.

Restore factory default will clear all the programs and password.

LOCK MENU

The sixth item of the menu is the LOCK MENU You can lock system, set password, block program and set parental guidance Once you set the lock system to on, you can not search the channels or change any programs.

The default pass word is 6666.
Block program: Press UP/DN  to choose the program ,press teletext green button to block the program. If you want unblock the program,  enter the main menu , input the password, then press green button again.Parental guidance: Press Left/Right  to choose rating.

How to enter into the factory mode [Service Mode]

Press the "source-2-5-8-0" to go into factory setting. Press the key "exit" to exit the factory setting.

Factory mode content

1: ADC setup: set ADC value of YUV,VGA. It can also be auto-set. Adopt 100% color bar to yuv and Checkerboard signal to vga.
2: Adjust the brightness and contrast ratio of each signal, which do not affect the value of user's menu.
3: adjust the color temperature and white balance of each signal source.
4: SSC to adjust the spectrum for passing the EMC test.
5: special set
1) 2hour off-- for Aging test
2) WDT --watch dog
3) White pattern --set pure color output for the panel, used at the checking and aging test for panel.
4) reset
5) set the recorder
6) set power-on screen display.
6: QMAP adjust :adjust color quality.
7: PEQ set sound EQ
8: sw information: to check the sofeware information
9: UART DEBUG : Access to serial port and connect a computer if set to HK.
10: BMTEST :cpu check the CPU
The last line is SW Ver.No.

How to update software

Haier MSD306 F/W upgrade with USB SOP
Step 1: Ready for F/W Upgrade
1.1 Prepare a USB memory .
1.2 Copy the software file [merg.bin] from your computer to the USB memory, and remove it from the computer USB port.

Step-2 F/W update

2.1 AC ON

2.2, then input USB , press "MENU" and choose "update software", and then press "OK"

2.3, Now you should choose "Yes",TV begin to update.You should reset TV after update.

[When Upgrade on the process, please don’t Power-Off]

Power Board voltages

Keypad and remote connector (J28)   - Speaker connector J26 voltages

LED panel model number

Wiring connection

Main board failure check

Abnormal display and no sound problem

TV failure

Panel failure symptoms [these symptoms are common to all LCD-LED TVs irrespective of its brand or screen size]

SONY SOUND BAR HTST9 ACTIVE SPEAKER SYSTEM SAST9 How to enter the Service mode Initialization Wireless LAN setup procedures cold reset

 NETWORK INFORMATION WRITING AND CHECKING OF NETWORK/NFC OPERATION
When the complete MB1406 board or card WLAN/BT combo are replaced, execute the below BD service mode. And check the operation of wireless/wired LAN and NFC.
Network information writing
Procedure:
1. Connect this unit with TV monitor.
2. Press the [POWER] button to turn the power on.
3. Press button in order of the [STOP] > [DISPLAY] > [PAUSE] > [UP] on the remote commander.
(Make the interval when each button is pressed within one second)
4. Enter the BD service mode. The OSD menu on TV monitor can be operated by remote commander.
5. Press the [DOWN] button on the remote commander to select “Diag”, and press the [ ENTER ] button on the remote commander.
6. Press the [RIGHT] button on the remote commander to select “Wireless LAN Test”.
7. Press the [DOWN] button on the remote commander to select “[5] Write P2P address to Registry”.
8. Press the [ENTER ] button on the remote commander, wait until the display show “Status: Write Successful!”
9. Press the [BACK] button on the remote commander to return to category select screen, and press the [RIGHT] button on the remote commander to select “Bluetooth Device Test”.
10. Press the [ DOWN ] button on the remote commander to select “(1) Bluetooth Enable”.

11. Press the [ ENTER ] button on the remote commander, wait until the display show 

“Status: Bluetooth Enable Successful!”
12. Press the [DOWN] button on the remote commander to select “(3) Write Bluetooth device address to Registry”.
13. Press the [ ENTER] button on the remote commander, wait until the display show “Status: Write Successful!”
14. Press the [POWER] button to turn the power off.

Checking method of wireless LAN operation
Necessary Equipment:
Access point supporting WPS
Procedure:
1. Connect this unit with TV monitor.
2. Press the [POWER] button to turn the power on.
3. Press the [HOME] button on the remote commander, display the home screen.
4. Press the [UP/DOWN] buttons on the remote commander to select the “Setup”, and press the [ENTER ] button on the remote commander.
5. Press the [UP/DOWN] buttons on the remote commander to select the “Network Settings”, and press the [ ENTER] button on the remote commander.
6. Press the [UP/DOWN] buttons on the remote commander to select the “Internet Settings”, and press the [ ENTER] button on the remote commander.
7. Press the [UP/DOWN] buttons on the remote commander to select the “Wireless Setup(built-in)”, and press the [RIGHT] button on the remote commander.
8. Press the [UP/DOWN] buttons on the remote commander to select the “Wi-Fi Protected Setup (WPS)”, and press the [RIGHT] button on the remote commander.
9. The “Start” screen is display, and press the [WPS] key on the access point.
10. Press the [RIGHT] button on the remote commander, setup is start.
11. The message “Next, check the network connection” is display, and press the [RIGHT] button on the remote commander.
12. When wireless LAN connection is completed, “Wireless Connection: OK” and “Internet Access: OK” is displayed.

Checking method of wired LAN operation
Necessary Equipment:
Router
Network LAN cable
Procedure:
1. Connect this unit with TV monitor.
2. Connect the unit to the router with the network LAN cable.
3. Press the [POWER] button to turn the power on.
4. Press the [HOME] button on the remote commander, display the home screen.
5. Press the [UP/DOWN] buttons on the remote commander to select the “Setup”, and press the [ ENTER] button on the remote commander.
6. Press the [UP/DOWN] buttons on the remote commander to select the “Network Settings”, and press the [ ENTER] button on the remote commander.
7. Press the [UP/DOWN] buttons on the remote commander to select the “Internet Settings”, and press the [ ENTER] button on the remote commander.
8. Press the [UP/DOWN] buttons on the remote commander to select the “Wired Setup”, and press the [RIGHT] button on the remote commander.
9. Press the [UP/DOWN] buttons on the remote commander to select the “Auto”, and press the [RIGHT] button on the remote commander.
10. The “The network will be configured with the following settings” screen is display, and press the [RIGHT] button on the remote commander.
11. Press the [UP/DOWN] buttons on the remote commander to select the “Save & Connect”, and press the [ENTER] button on the remote commander.

12. When wired LAN connection is completed, “Physical Connection: OK” and “Internet Access: OK” is displayed.
Checking method of NFC operation
Necessary Equipment:
Smartphones, tablets, or music players with the NFC function built-in (OS: Android 2.3.3 or later, excluding Android 3.x)
Procedure:
1. Press the [POWER] button to turn the power on.
2. Touch the N mark of the Bar Speaker with the Bluetooth device.

3. Make sure that the indicator (blue) of the Bar Speaker lights up. (This indicates that a connection has been established)

4. Start playback of an audio source on the Bluetooth device.
Note: After checking of NFC operation, be sure to delete the pairing information before returning this unit to the customer.

Factory initialize
Return all of the unit setting to their factory defaults.
Note 1: Disconnect the following connections when you use this mode.
# USB
# LAN
# HDMI IN 1
# HDMI IN 2
# HDMI IN 3
Note 2: The operation in this mode must use a remote commander and TV monitor.
Procedure:
1. Connect this unit with TV monitor.
2. Press the [POWER] button to turn the power on.
3. Press the [HOME] button on the remote commander, and the home menu is displayed.
4. Press the [UP/DOWN] buttons on the remote commander to select the “Setup”, and press the [ENTER ] button on the remote commander.
5. Press the [UP/DOWN] buttons on the remote commander to select the “Resetting”, and press the [ ENTER] button on the remote commander.

6. Select “Reset to Factory Default Settings”, and press the [ENTER ] button on the remote commander.

7. Press the [UP/DOWN] buttons on the remote commander to select the “All Settings”, and press the [ENTER ] button on the remote commander.

8. Press the [LEFT/RIGHT] buttons on the remote commander to select the “Start”, and press the [ENTER ] button on the remote commander.

9. Turn the power off automatically, and initialization ends.

NOTES ON THE WIRELESS CONNECTION (LINK) AFTER REPAIRS ARE COMPLETE
When the following replacing repair is performed, the link of the Bar speaker (SA-ST9) and Subwoofer (SA-WST9) is cut. Return the Bar speaker (SA-ST9) and Subwoofer (SA-WST9) to the customer after performing the link according to the following procedure.
Parts in which the LINK will be disconnected due to replacement:
Complete MB1406 board
Link method:
When you turn on the Bar speaker (SA-ST9) and Subwoofer (SAWST9), and then automatically link. If do not to link, there is a possibility that the customer is perform the secure link. In that case, perform the following procedure.
Procedure of secure link:
1. Select [Wireless Sound Connection] in [System Settings]
2. Select [Secure Link].
3. Select [On].
4. Press SECURE LINK on the rear of the subwoofer. Proceed to the next step within a few minutes.
5. Select [Start].
To return to the previous display, select [Cancel].
6. After the message [Secure Link setting is complete.] appears, press ENTER .
The on/standby indicator on the subwoofer lights in orange.
If the message [Cannot set Secure Link.] appears, follow the onscreen instructions.

TEST MODE

COLD RESET
It can initialize various backup information.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the two buttons of the [VOLUME –] and [POWER] simultaneously for five seconds.
3. The message “WAIT” > “RESET” is displayed on the OLED display and then turn the power off.

BD SERVICE MODE
Note: The operation in this mode must use a remote commander and TV monitor.
Setting method of the BD service mode:
1. Connect this unit with TV monitor.
2. Press the [POWER] button to turn the power on.
3. Press button in order of the [STOP] > [DISPLAY] > [PAUSE] > [UP] on the remote commander.
(Make the interval when each button is pressed within one second) 4. Enter the BD service mode. The OSD menu on TV monitor can be operated by remote commander.

WIRELESS SOUND COLD RESET
It can initialize various backup information of Subwoofer (SAWST9).
Preparation:
Connect the Subwoofer (SA-WST9) and the Bar Speaker (SAST9) by wireless.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the buttons on the remote commander in the order of [STOP] > [DISPLAY] > [BACK] > [UP].
3. The on/standby indicator on the Subwoofer (SA-WST9) turns red and flashes, then turns on orange.

4. Unplug the AC cord on the Subwoofer (SA-WST9) from an outlet and insert the AC cord again.

SONY HOME THEATRE SYSTEM SA ST7 HT ST7 Test mode cold reset amp test DSP surround check SMPS Power supply circuit using STR-Y6766

SONY SAST7  HT-ST7  TEST MODE

TEST MODES OTHER THAN THE TEST MODE MENU
These are executable test mode even if not entering the test mode menu.
Cold Reset
It can initialize various backup information.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the three buttons of the [INPUT], [VOLUME –] and [POWER] simultaneously.
3. The message “RESET” is displayed on the fluorescent indicator tube, then turn the power off.

TEST MODES IN THE TEST MODE MENU
These are the test modes done in the test mode menu.
Setting method of the test mode menu:
1. Press the [POWER] button to turn the power on.
2. Press the two buttons of the [INPUT] and [VOLUME +] simultaneously for five seconds.
3. The message “PANEL” blinks on the fluorescent indicator tube and enter the test mode menu.

Releasing method of the test mode menu:
Press the [POWER] button to release the test mode menu.

Panel Test Mode
It can confirm the lighting of fluorescent indicator tube and LEDs,
operation of buttons, display of model name, destination and software version.
Procedure:
1. Enter the test mode menu.
2. In the state of blinking the “PANEL” on the fluorescent indicator tube, press the [INPUT] button.
3. All segments in the fluorescent indicator tube and all LEDs are lighted up.
4. When pressing the [VOLUME +] button, the display on the
fluorescent indicator tube repeatedly changes in order from all lighting >  pattern 1 (power indicator LED (white color) is lighted up) >  pattern 2 (Bluetooth indicator LED (blue color) and [MUTING] LED are lighted up).

5. In the state of step 4, press the [VOLUME –] button and “K 0” is displayed on the fluorescent indicator tube.

Each time a button is pressed, “K 0” value increases. However, once a button is pressed, it is no longer taken into account. When pressing the all buttons, “OK” and “K 5” are alternately displayed on the fluorescent indicator tube.

6. In the state of step 4, press the [INPUT] button and model name “HT-ST7” is displayed on the fluorescent indicator tube.

Each time the [VOLUME +] button is pressed, the display changes from destination > MC (m-com) version > SY (system) version > UI version > TA (AMP) version > DS (DSP) version > BT (Bluetooth) version > NF (NFC) version > HD (HDMI) version, > CE (CEC) version > PF (platform) version > WS (wireless sound) version in this order, and returns to the model name display.

7. When [INPUT] button is pressed while the each version is displayed on the fluorescent indicator tube, year, month and day of the software creation is displayed on the fluorescent indicator tube.

When [INPUT] button is pressed again, the display returns to the each version display.

Releasing method:
Press the [POWER ] button to release the test mode menu. (When the “K 0” to “K 4” is displayed on the fluorescent indicator tube, press the [POWER] button on the remote commander to release the test mode menu)
Model Name Display Mode
It can display the model name.
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “HT-ST7”

Destination Display Mode
It can display the destination.
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the destination.

MC Version Display Mode
It can display the MC (m-com) version.
Procedure:
1. Enter the test menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “MC.X.XXX” (X.XXX: MC (m-com) version).

Serial Flash Version Display Mode
It can display the SF (serial flash) version.

Procedure:
1. Enter the test menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “SF.X.XXX” (X.XXX: SF (serial flash) version).

DSP Sound Number Display Mode
It can display the SN (DSP sound number) number.
Procedure:
1. Enter the test menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “SN XXX” (XXX: DSP sound number (000 to 998)).

Note: “SN ---” is displayed when the information of serial flash is not able to be acquired.

BT Module F/W Version Display Mode
It can display the BT (Bluetooth) module firmware varsion.
Procedure:
1. Enter the test menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “BTM.X.XX” (X.XX: BT (Bluetooth) module firmware version).

AMP Test Mode
(It is displayed “AMP” on the fluorescent indicator tube) Not used for the servicing.
Press the [POWER] button if having entered this mode.
Tone Test Mode
It can confirm the test tone output from each speaker.
Preparation:
Connect the Subwoofer (SA-WST7) and the Sound Bar (SA-ST7) by wireless.
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “T TONE”, press the [INPUT] button.
3. The message “TONE.ON” is displayed on the fluorescent indicator tube momentarily and enter the tone test mode.

4. The output speaker is displayed on the fluorescent indicator tube. At the same time, test tone is output from speaker. (The output speaker repeatedly changes automatically in following order)

Output speaker	Display
Front L-ch	L3
Surround Back R-ch	R1
Surround L-ch	L2
Surround R-ch	R2
Surround Back L-ch	L1
Front R-ch	R3
Center	C
Subwoofer	SW

Releasing method:

Press the [POWER] button to release the test mode menu.
Speaker Test Mode
(It is displayed “SPK.TST” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
VACS Display Mode
(It is displayed “V. DISP” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
VACS ON/OFF Mode
(It is displayed “V.ONOFF” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
DSP Halt Mode
(It is displayed “DSP.HLT” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
DSP Serial Flash Update Mode
(It is displayed “SF UPD” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
Stream Information Mode
(It is displayed “STREAM” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
HDCP Key Read Mode
(It is displayed “HDCP” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.
NFC Test Mode
(It is displayed “NFC.TST” on the fluorescent indicator tube)
Not used for the servicing.
Press the [POWER] button if having entered this mode.

Wireless Sound Test Mode
It can display the m-com version of Subwoofer (SA-WST7).
Note :More than one item may be displayed on the fluorescent indicator tube, but it is not used for the servicing other than “VER.CHE”.
Preparation:
# Prepare the remote commander attached to this unit.
Remote commander:
RM-AMU164
# Connect the Subwoofer (SA-WST7) and the Sound Bar (SAST7) by wireless..
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “WS TST”, press the [INPUT] button.
3. The message “QUALIT” is displayed on the fluorescent indicator tube momentarily and enter the wireless sound test mode.
4. Press the [UP ]/[DOWN] buttons on the remote commander, select the “VER.CHE”, and press the [ENTER] button on the remote commander.
5. The m-com version of Subwoofer (SA-WST7) is displayed on the fluorescent indicator tube.

6. When [UP]/[DOWN] buttons on the remote commander is pressed while the m-com version of Subwoofer (SA-WST7) is displayed on the fluorescent indicator tube, year, month and day of the creation is displayed on the fluorescent indicator tube.

When [UP]/[DOWN] buttons on the remote commander is pressed again, the display returns to the m-com version of Subwoofer (SA-WST7) display.
Releasing method:
Press the [POWER] button to release the test mode menu.

Wireless Sound Cold Reset
It can initialize various backup information of Subwoofer (SAWST7).
Preparation:
Connect the Subwoofer (SA-WST7) and the Sound Bar (SA-ST7) by wireless.
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “WS RST”, press the [INPUT] button.
3. The [POWER] indicator LED on the Subwoofer (SA-WST7) turns red and flashes, then turns on yellow.

4. Pull out the power cord on the Subwoofer (SA-WST7) from an outlet and insert the power cord again.
Cold Reset
It can initialize various backup information.
Procedure:
1. Enter the test mode menu.
2. Press the [VOLUME +]/[VOLUME –] buttons to select the “RESET”, press the [INPUT] button.
3. The message “RESET” is displayed on the fluorescent indicator tube, then turn the power off.