Friday, July 27, 2018

32PFS6402/12 Philips LCD TV – service mode, Factory mode, Software update, Error codes and more

How to enter the service mode, firmware update, error codes or LED blinking codes - Philips 32 inch LCD TV - 32PFS6402
There are critical components used in LCD color TVs that are important for safety. These components are identified with shading and  mark on the schematic diagrams and the parts list. It is essential that these critical parts be replaced only with the part number specified in the parts list to prevent electric shock, fire, or other hazard.
An isolation transformer should be used during any service to avoid possible shock hazard, in case of live chassis.
During the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth.
Readings are taken with a color-bar signal input.
Readings are taken with a 10MΩ digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V
Service Modes
The Service Mode feature is split into following parts:
Service Alignment Mode (SAM).
Factory Mode.
Customer Service Mode (CSM).SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set.
SAM and the Factory mode offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:
Make alignments (e.g. White Tone), reset the error buffer(SAM and Factory Mode).
Display information (“SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).
The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to: Increase the home repair hit rate.
Decrease the number of nuisance calls. Solved customers’ problem without home visit.
(For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes. For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).)
Service Alignment Mode (SAM)
Purpose
To modify the NVM.
To display/clear the error code buffer.
To perform alignments.
Specifications
Operation hours counter (maximum five digits displayed).
Software version, error codes, and option settings display.
Error buffer clearing.
Option settings.
Software alignments (White Tone).
NVM Editor.
Set screen mode to full screen (all content is visible).
How to Activate SAM
To activate SAM, use one of the following methods:
Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “INFO/OK” button. {Do not allow the display to time out between entries while keying the sequence.}
Or via ComPair.
After entering SAM, the following items are displayed,
with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.
How to Navigate
In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.
With the “LEFT/RIGHT” keys, it is possible to:
(De) activate the selected menu item.
(De) activate the selected sub menu.
Change the value of the selected menu item.
When you press the MENU button once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).
How to Store SAM Settings
To store the settings changed in SAM mode (except the RGB Align settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.
How to Exit SAM
Use one of the following methods:
Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.
Via a standard RC-transmitter, key in “00” sequence.
Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.
Factory mode
Purpose
To perform extended alignments.
Specifications
Displaying and or changing Panel ID information.
Displaying and or changing Tuner ID information.
Error buffer clearing.
Various software alignment settings.
Testpattern displaying.
Public Broadcasting Service password Reset.etc
How to Activate the Factory mode
To activate the Factory mode, use the following method:
Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button.
Do not allow the display to time out between entries while keying the sequence.
After entering the Factory mode, we can see many items displayed, use the UP/DOWN keys to display the next/previous menu items.
How to Exit the Factory mode
Use one of the following methods:
Select EXIT_FACTORY from the menu and press the “OK” button.
Note: When the TV is switched “off” by a power interrupt, or normal switch to “stand-by” while in the factory mode, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.
Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and information on the TVs operation settings.The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set.This helps the call centre to diagnose problems and failures in the TV set before making a service call.The CSM is a read-only mode; therefore, modifications are not possible in this mode.
Specifications
Ignore “Service unfriendly modes”.
Line number for every line (to make CSM language independent).
Set the screen mode to full screen (all contents on screen is visible).
After leaving the Customer Service Mode, the original settings are restored.
Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.
How to Activate CSM
To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence). After entering the Customer Service Mode, the following items are displayed. use the Right/Left keys to display the next/previous menu items
Note: Activation of the CSM is only possible if there is no (user) menu on the screen.
How to Navigate
By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter, can be navigated through the menus.
How to Exit CSM
To exit CSM, use one of the following methods.
Press the MENU/HOME button on the remote control transmitter.
Press the POWER button on the remote control transmitter.
Press the POWER button on the television set.
Software Upgrading, Error code and Panel Code
Software Upgrading
5.1.1. The following update is for .pkg file.
1. Rename the file to “upgrade_loader.pkg”
2. Prepare a USB memory.
3. Copy the software to USB flash disk(root directory).
4. Switch off the TV and Insert the USB memory stick that contains the software update files in one of the TV’s USB 2.0 ports.
Note: It contains USB3.0 port, if connect on it, the software may can’t be detected.
5. Switch on the TV. The TV will detect the USB memory s tick automatically. Then a window jumps out as below.
6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.
7. We can enter in CSM or Factory mode to check the current software version.
5.1.2. The following update is for .upg file.
Step 1: Ready for F/W Upgrade
1. Prepare a USB memory.
2. Copy the software to USB flash disk(root directory).
Note the version of this F/W before you change the software file name.
Step 2: F/W Upgrade
1. Plug the USB memory on the USB port on the side I/O port of TV (Please connect to USB 2.0 port, not recommend USB3.0 port)
2. AC on (Power plug)
3. TV will show message as below image, Press [Start] to detect the software automatically.
Press [Start] to start software upgrade
Upgrade in progress
Step 3: Check the SW version
1. After burning software, TV will restart
2. Press “Menu+1999+back”, enter Factory mode to check if the software version is correct
Caution: Please make sure that software upgrade is finished before unplug the USB and AC power.
Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every
• Activated (SW) protection.
• Failing I2C device.
• General I2C error.
The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.
An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left.
An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED).
In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.
How to Read the Error Buffer
You can read the error buffer in three ways:
• On screen via the SAM/CSM (if you have a picture).
Example:
– ERROR: 000 000 000 000 000: No errors detected
– ERROR: 013 000 000 000 000: Error code 13 is the last and only detected error
– ERROR: 034 013 000 000 000: Error code 13 was detected first and error code 34 is the last detected (newest) error
• Via the blinking LED procedure (when you have no picture).
Error codes overview
In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:
How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
• By using the CLEAR command in the SAM menu
• By using the CLEAR command in the Factory mode:
• By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.
• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.
Panel Code
Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display Code” in below tab. After resetting the Display Code, restart the set immediately.
CTN_ALT BOM#:  32PFS6402/12  
Panel Type: TPT315B5-FHBN0.K S4DP2P 
Set Option Code: 133
Power Supply Unit
All power supplies are a black box for Service. When defective, a new board must be ordered and the defective one must be returned, unless the main fuse of the board is broken. Always replace a defective fuse with one with the correct specifications! This part is available in the regular market.
Consult the Philips Service web portal for the order codes of the boards.
Important delta’s with the platform are:
• New power architecture for LED backlight
• “Boost”-signal is now a PWM-signal + continuous variable
The control signals are:
• PS-ON
• Lamp “on/off”
• DIM (PWM) (not for PSDL)
In this manual, no detailed information is available because of design protection issues.
• +8.5V output (standby mode)
• +12 output (on-mode)
• +12V_audio (audio AMP power)
• Output to the display; in case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
Diversity
The diversity in power supply units is mainly determined by the diversity in displays.
The following displays can be distinguished:
• CCFL/EEFL backlight: power panel is conventional IPB
• LED backlight:
- side-view LED without scanning: PSL power panel.
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
PSL stands for Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED backlight with 2D-dimming.
DC/DC Converters
The on-board DC/DC converters deliver the following voltages(depending on set execution):
• +3V3-SB, permanent voltage for the Stand-by Power system
• +3V3-STANDBY,voltage for IR/Key board
• +12V, input from the power supply for the panel common(active mode)
• 12V, input from the power supply for LNB supply
• +3V3-EMMC, voltage for EMMC when TV on
• TUNER_3V3, supply voltage for tuner
• +5V-SW, input intermediate supply voltage for USB Power
• +12V-AUDIO1 for the AUDIO AMP
• +3.3VA_T2, voltage for Demodulator IC channel decoder.
Video and Audio Processing - MT5593FPIJ
The MT5593FPIJ is the main audio and video processor (or System-on-Chip) for this platform. It has the following features:
• ATSC /DVB-T /DVB-C/DTMB demodulators
• Ture 120HZ Full HD MJC
• Power CPU core
• 3D graphic support OpenGL ES 1.1/2.0
• A muti-standard video decoder
• A transport de-multiplexer
• One HDMI 2.0 receiver with 3D support
• MHL2.0& Standby charging
• 2D/3D converter
• Rich format audio codec
• Local dimming (LED backlight)
• Ethernet MAC+PHY
• TCON
• Panel overdrive control
• Four-link LVDS, mini-LVDS,V-by-one, EPI
The MT5593FPIJ family consists of a DTV front-end demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It integrates a transport de-multiplexer, a high definition video decoder, an audio decoder, a four-link LVDS transmitter, a mini-LVDS transmitter, a V-by-one transmitter, an EPI transmitter, and an NTSC/PAL/SECAM TV decoder with 3D comb filter(NTSC/PAL).
The MT5593FPIJ enables consumer electronics manufacturers to build high quality, low cost and feature-rich DTV. The MT5593PFIJ family supports Full-HD MPEG1/2/4/H.264/VC1/RM/AVS/ and H.264/HEVC video decoder standards, and JPEG. The MT5593FPIJ also supports edia Tek MDDi de-interlace solution which can reach very smooth picture quality for motions. A 3D comb filter added to the TV decoder recovers great details for still pictures.
The special color processing technology provides a natural, deep colors and true studio quality video. Moreover, the MT5593 family has built-in high resolution and high-quality audio codec. The MT5593FPIJ family provides consumers with and Full-HD 120Hz experience. It integrates high-quality Full-HD ME/MC technology. The MT5593FPIJ family supports ASTC,DVB-T and DVB-C,DTMB demodulation functions. It reserves transport stream inputs for external demodulators for other countries or areas.TV maker can easily port the same UI to worldwide TV models. First-class adjacent and co-channel rejection capability grants excellent reception. Professional error-concealment provides stable, smooth and mosaic-free video quality.

Wednesday, July 18, 2018

Sylvania 6620LDF – LCD TV-DVD combo – service mode adjustments, firmware renewal, initialization, SMPS schematic and more

How to set up the service mode
1. Use the service remote control unit.
2. Turn the power on. (Use main power on the TV unit.)
3. Press [DISC MENU] button on the service remote control unit. Version of micro computer will be displayed on the LCD or display. (Ex: A95FP-0.23)
How to make Service remote control unit
Prepare normal remote control unit (Part No. NE240UD). Remove 3 screws from the back lid.
Cut off pin 10 of the remote control.
microprocessor and short circuit pins 10 and 17  with a jumper wire.
Initial Setting
General: Enter the Service mode. Set the each initial data as shown on table below
Flicker Adjustment
1. Enter the Service mode.
2. Press [2] button on the remote control unit.  The following screen appears.
If Flicker Adjustment is not fit, the screen becomes the following.
Press [CH. UP / DN] buttons on the remote control unit so that flash stops.
White Balance Adjustment
Purpose: To mix red, green and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
Use the remote control unit.
1. Operate the unit for more than 20 minutes.
2. Input the White Purity (APL 80%).
3. Set the color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown.
Note: The optical receptor must be set perpendicular to the LCD Panel surface.
[RF/VIDEO1]
Enter the Service mode. 
Press “VOL DN” button on the remote control unit and select “C/D1-” mode.
[VIDEO2]
Enter the Service mode. 
Press “VOL DN” button on the remote control unit and select “C/D2-” mode.
[RF/VIDEO1]
When “x” value and “y” value are not within specification, adjust “DB (C/D1)” or “DR (C/D1)”.
Refer to “1. Initial Setting.”
Note: “DB(C/D1)” or “DR(C/D1)” must be adjusted within ±0.01.
[VIDEO2]
When “x” value and “y” value are not within specification, adjust “DB(C/D2)” or “DR(C/D2)”.
Refer to Initial Setting.”
Note: “C-DB(C/D2)” or “C-DR(C/D2)” must be adjusted within ±0.01.
Turn the power off and on again. (Main power button on the TV unit.)
To initialize the lCD TV/DVD
To put the program back at the factory-default, initialize the LCD TV/DVD as the following procedure
DVD Section
1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order.
Press [CLEAR] button on the remote control unit. 
When “OK” appears on the screen, the factory default will be set.
3. To exit this mode, press [CH. UP/DN] or [SELECT] button to go to TV mode, or press [POWER] button to turn the power off.
LCD TV Section
1. Turn the power on. (Use main power on the TV unit.)
2. To enter the service mode, press [DISC MENU] button on the service remote control unit.
- To cancel the service mode, press [POWER] button on the remote control.
3. To initialize the LCD television, press [DISPLAY] button on the remote control unit.
4. Confirm "FF" indication on the upper right of the screen.
5. Unplug the AC cord.
Firmware renewal
1. Turn the power on and press [EJECT] button on the remote control unit to put the LCD TV/DVD into DVD mode. Then remove the disc.
2. To put the LCD TV/DVD into F/W version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order.
Firmware update screen appears.
3. Insert the disc for version up into the disc slot.
4. The LCD TV/DVD enters the F/W version up mode automatically. 
If you enter the F/W for different models, “Disc Error” will appear on the screen, then the disc will be ejected automatically.
5. After programming is finished, the disc will be ejected automatically,  and the checksum will be shown.
At this time, no button is available.
6. Remove the disc.
7. Press [CH. UP/DN] button on the unit to go to TV mode, or press [POWER] button on the unit to turn the power off.
8. Press [EJECT] button on the remote control unit to put the LCD TV/DVD into DVD mode again.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order.
10.Press [CLEAR] button on the remote control unit.
When “OK” appears on the screen, the factory default will be set. Then the firmware renewal mode is complete.
11.To exit this mode, press [CH.UP/DN] or [SELECT] button to go to TV mode, or press [POWER] button to turn the power off.
Voltage indications for PLAY and STOP modes on the schematics are as shown
How to Eject Manually
1. Remove the Rear Cabinet.
2. To remove the Loader PCB Holder with the DVD Main CBA Unit, remove three screws.
    Do not disconnect connectors.
3. To remove the Chassis Cover, remove 4 screws A as shown in Fig.
4. Remove a disc.
Reassembly note of the Chassis Cover:
Insert the pin A on the Chassis Cover into the hole A on the Main Chassis as shown in above Fig.
Audio section schematic: Main PWA
Inverter Schematic and PWA
                               
Power (SMPS) Schematic: Main CBA
Wiring diagram

Friday, July 13, 2018

LG 29FS4RK, LG 29FS4RK-L1 – 29 inch CTV – schematic and service adjustments

Used ICs: TDA7297(Audio amplifier), TDA120xx(UOC), TDA6107ajf(RGB Amp),TDA9326(Vertical amp), 2SC6090(Horizontal Out Transistor), STR6556(SMPS control), BSC2B-N2334(FBT)
(1) Because this is an insulated chassis, it is not necessary use an isolation transformer. However, the use of the isolation transformer will help protect the test instrument.
(2) The adjustment must be made in the correct order.
(3) The adjustment must be made given the circumstance of 25 ± 5 ° C temperature and 65 ± 10% relative humidity if there is no specific designation.
(4) The AC input voltage of the receiver must maintain a nominal voltage during adjustment.
(5) The receiver must be operated for about 15 minutes before to make the adjustment.
(6) Signal: The standard color signal is approved in 65 ± 1dBμV. The standard color signal means the pattern signal digital.
Adjustment
Adjust the volume of the Top Focus of the FBT for the best focus of the vertical line of the fourth part of the screen (Red circle)
Manual Screen Adjustment
(Using ADJ (ADJUST) of the Remote Control)
(1) Receive the NTSC (PAL) signal in RF mode without considering the channel.
(2) If you press the "ADJ" button in the LINE SVC mode (INSTART button), the LINE SVC mode changes to the setting mode of the screen.
(3) Adjust the SCREEN so that all OK appears on the HBC and WBC using SCREEN VOL. FBT (Press the button ADJ to exit SVC mode)
Sub-brightness adjustment
(1) If you press the "ADJ" button on the remote control to adjust Setting mode "SCREEN" (SCREEN), the mode changes to the Secondary Brightness setting mode.
(Sub-brightness adjustment mode: Channel 14, MIN CONTRAST / BRIGHTNESS)
(2) Adjust until the "2" almost disappears in the Scale of Gray of the Monoscope signal using the VOL +, - key.
Manual Adjustment of White Balance
NOTE: When adjusting the white balance automatically, connect the JIG setting in the LINE SVC MODE. (When press the IN-START, MUTE button on the control remote to adjust neatly, it changes to AUTO MODE and on the Left / Top part of the screen displays "AUTO").
(1) Receive 100% of the white pattern.
(2) Set the LOW Light state (4.5FL) of BLO-R (R CUT), BLO-G (G CUT).
(3) Set the status of HIGH Light (35FL) of RG (R DRIVE), GG (G DRIVE) to BG (B DRIVE): 32.
(4) Repeat the previous steps (2) and (3) for the best condition of each state of High Light and Low Light.
X: 282, Y: 288 (Color Temperature: 10000oK
Adjustment of Deflection Data
 (1) Receive the Digital Pattern.
(2) Use the Remote Control for adjustment.
(3) Select SERVICE 2 in the SERVICE MENU by pressing the LINE SVC MODE (IN-START KEY) and enter the mode Deflection adjustment by pressing the VOL + key.
(4) Use the CH +, CH - key to select the item of adjustment.
(5) Use the VOL +, VOL - key to increase / decrease the data Adjustment
(1) First, adjust the deflection data in N50Hz (PAL) and adjustment to N60Hz (NTSC), Z60Hz, N50Hz, W50Hz, Z50Hz. (with the ARC Model)
(2) Only adjust in N60Hz (NTSC).
(3) After finishing the deflection setting, press the ENTER key to enter (before pressing the INSTART key) or exit in Service mode. (OUTPUT KEY)
V SLOPE
When you select the Adjustment Mode V SLOPE, half of the lower screen is blank.
At this time, adjust the Clearing Line and the line vertical geometric center so that they are equal.
 V SHIFT
Adjust so that the horizontal centerline of a pattern of digital circle matches the horizontal center geometry of the CPT.
 V LINEAR
Adjust until the top and bottom of the screen are symmetrically equal in the Digital Pattern.
 V AMPLIT (V AMPITUDE)
1) PAL signal: Adjust so that the circle of a pattern of digital circle is located at an interval of 6 ~ 7mm from the effective CPT screen.
2) NTSC signal: Adjust so that the circle of a pattern of digital circle can be located inside the screen effective CPT
 H SHIFT
Adjust so that the vertical centerline of a pattern of digital circle matches the geometric vertical center of the CPT.
Schematic and PWB
 EW WIDTH
Adjust so that a digital circle pattern resembles to an exact circle.
 EW PARAB (EW PARABOLA)
Adjust so that the middle portion of the vertical line left and right outermost seem parallel with the vertical lines of the CPT.
 EW TRAPE (EW TRAPEZOID)
Adjust to make the length of the upper horizontal line be equal to the bottom horizontal line
 EW UPCOR & EW LOCOR
After finishing the EP adjustment, adjust the vertical line on the lower left, lower right, upper left, and top right of the screen to the best straight line
 H BOW
After finishing the EP adjustment, adjust until symmetric the top and bottom corner of the screen.
 H PARALL (ANGLE)
Adjust the vertical slope.
 SCORRECT (S CORRECTION)
Adjust so that all distances between each width of the upper / central / lower trellis are equal.
  Setting the value of the CPT Default (Initial) data has I like that, because it is decided by the value of CPT DY.
 V SCROLL
Save the initial configuration values.
v ZOOM
Setting the value of the CPT Default (Initial) data has I like that, because it is decided by the value of CPT DY.

Tuesday, July 10, 2018

Haier HL32D2 – Haier HL42XD2 LCD TV – How to enter the factory mode, Service mode adjustments - Power board (SMPS) schematic

Haier HL32D2&HL42XD2 - 31.5”&42” LCD TV - Horizontal Frequency 31~68 KHz
Television System:  NTSC standard,ATSC standard (8-VSB, Clear-QAM)
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person’s body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.)
AUDIO MENU
It provides audio adjustment for user to modify the audio setting. Audio language setting is only available with ATSC TV source, the option is disable under other source modes.
Sound Mode: Choose the audio mode: Personal, Music, or Speech.
2. Bass: Bass tone adjustment, the tuning range is 0 ~ 63. (The default state is enabled.)
3. Treble: Treble tone adjustment, the tuning range is 0 ~ 63. (The default state is enabled.)
4. Balance: Audio balance adjustment, the tuning range is L50 ~ R50.
5. Audio Source: Select the audio source from Mono, Stereo, or SAP. (This function works in ATV only.)
6. Audio Language: Change the audio language setting on ATSC TV programs. The number of the supported audio languages depends on the ATSC TV programs. (English / Français / Español)
7. SPDIF: Digital audio output format. Select from RAW and PCM. (This function works in DTV only.)
8. Speaker: Choose to turn on / off the TV internal speaker. The digital audio output signals and earphone output signals will not be turned off even though the TV speaker is off. The default setting is On.
9. AVL: Choose On or Off to adjust volume to be consistent across programs and channels automatically.
10. Preset: Restore the default audio settings.
Password Setting: Change the 4-numeral parental control password. Three steps are required for changing the password: Enter Old Password -> Enter New Password ->Confirm New Password. Note:
This item is only available in TV, Composite and S-Video source modes. The default password is  0 0 0 0
Parental Control: Provide the parental Control (V-chip) function setting. Before entering the Parental Control sub-menu, user has to key in the password first. Enter the Parental Lock item, then the user can modify the restricted table about MPAA or TV Rating respectively. While exiting the sub-menu, the parental control function is working. The inhibitive channels or source signals can be unlock through key in the correct password.
Note: This feature is only available in TV, Composite and S-Video source modes.(The default password is: 0 0 0 0.)
[Button Lock] – Select On or Off to lock or unlock the control buttons on the side panel of the TV. When this function enables, the control buttons on your TV will be locked and TV only can be controlled by remote control only.
[Block Unrated TV] – When Block Unrated TV is set to on, your TV will block unrated program.
[USA Parental Locks] – Set the parental control level by MPAA or TV Rating.
[Canadian Parental Locks] – Set the parental control level by English Rating or French Rating.
[Open V-Chip] – Open V-Chip is an advanced V-Chip rating system for digital channels that are received.
The rating table will be updated by downloading the RRT5 data for blocking.
6. Closed Captions: Select a closed caption options. (Off / On / With Mute)
7. Analog Captions: Select an analog caption options. (CC 1-4 / TEXT 1-4)
8. Digital Captions: Select a digital caption options. (SERVICE 1-6)
9. Digital Captions Setup: Provide numerous options for setting the digital closed caption style in the sub-menu.
[Style] – Set to Automatic or Customer mode. If Custom mode is selected, user can modify the detail styles described below. The setting result will be shown immediately on the bottom of the submenu OSD. Note: This feature is only available in Digital TV (ATSC) mode.
[Size] – Digital closed caption font size, which can be set as Automatic, Small, Normal, or Large.
[Font] – Digital closed caption font style, which can be chosen as Automatic, Default, or Font 1 ~ 7.
[Text Color] – Automatic / White / Red / Green / Blue / Yellow / Magenta / Cyan / Black.
[Text Opacity] – Automatic / Solid /Flashing / Transparent / Translucent.
[Background Color] – Automatic /Black / White/ Red / Green / Blue / Yellow /Magenta / Cyan.
[Background Opacity] – Automatic /Solid / Flashing / Transparent / Translucent.
[Edge Effect] – Automatic / None/ Raised / Depressed / Uniform / Left / Shadow / Right Shadow.
[Edge Color] – Automatic / Red / Green / Blue / Yellow / Magenta / Cyan / Black / White.
10. Input Labels: User can edit the input labels.
11. Component Setting: This option only shows and is available in component mode, which provides fine tuning component display.
[Phase] – Adjust Picture Phase to reduce Horizontal-Line noise. The tuning range is from 0 to 31.
[Preset] – Restore the default component setting values.
12. MultiMedia Menu: This option shows the photos in JPEG formats and plays the music in MP3 formats that stored in a USB storage device. Note: File number is limited to 1000 files.
JPEG sizes are limited as followed:
For 19"/32": 10928x6114
For 24"/42": 15360x8640
There are two ways to enter JPEG Viewer and MP3 Music Box interface: After plugging USB storage device into USB hub, Multimedia List menu will display.
Select MultiMedia Menu in Feature Menu to choose JPEG Viewer or MP3 MusicBox. These two items are activated only if the USB storage device is plugged into the USB hub.
[JPEG Viewer]  Press Menu to display control menu. Press Enter to enlarge the selected photo (orange frame) in browser.
 Image Delay: Set display time for each picture in slide show. There are three options: Fast, Slow, and Normal.
 Music On Slide Show: Enable background Music during slide show. It will play with the MP3 file sequence in current folder repeatedly. Music On Slide Show item will be grayed out if there is no MP3 file in current folder.
Start Slide Show: Enter Slide Show mode.
Rotate Photo: Rotate selected picture. (0/90/180/270)
•• Back to Upper Folder: Return to the upper folder.
•• Back to Root Folder: Return to root folder.
•• Back To Browser: Return to Browser mode. (Photo page with control menu.)
•• Exit: Exit JPEG Viewer and return to original source. (Browser with Control menu.)
13. Reset to Default: Restore all the default settings.
AV IN (AV/S-VIDEO) – Connect the input source for composite video devices, such as a VCR or video game. Use the white and red connectors to connect the external audio from the same source. The signal being carried by the
S-Video cable and connector, if connected, will take priority over the Video RCA connector (yellow connector).
COMPONENT (Y/Pb/Pr with Audio L/R) – Connect the primary source for component video devices such as a DVD Player or set top box here. Use red for Pr, blue for Pb, green for Y, red for right audio (R) and white for left
audio (L) inputs.
SPDIF (Optical Digital Audio Out) – When a digital audio signal is associated with the input selected for viewing, the digital audio will be available on this SPDIF connection to your home theater system.
Haier SMPS [Power supply board] schematic [HL32D2]
Adjustment
No need to adjust the white balance for this model, do ADC only.
Step1: Turn on the TV, press “Menu”, then press number key 1 > 9 > 9 > 9 and “ENTER”, it will achieve the factory mode.
Step2: Change TV, press the “Current Source” to Component mode and change signal to 1080i mode, press the “Auto Color”
Step3: Change TV, press the “Current Source” to PC mode and change signal to PC TIMING 137(1024X768); Pattern 147 (16 Grays), press the “Auto Color”
Universal remote control set-up codes for Haier TVs: 0328 0601 0658

Monday, July 09, 2018

Samsung SUHD TV UE49KS9000T, UE55KS9000T, UE65KS9000T – troubleshooting, SMPS board voltages, software update and more


Samsung 49, 55, and 65 inch curved LCD TVs
Check list for initial operation
1. Check the various cable connections frst.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected or loose cable connection.
- Check to see if the cables are connected according to the connection diagram.
2. Check the power input to the Main Board.
3. How to distinguish if the problem is caused by Main Board or T-CON Board.
- No Video
If the problem is No Video but BLU is on and Indication LED is blinking repeatedly and faster than normal booting: Replace the T-CON Board.
TV POWER STANDBY
1. TV in Standby
√ Standby LED Indicator
2. If Not Lit:
√ AC 120Vac Line
3. If missing:
√ 120Vac Source and Power Cord
4. If OK:
√ Resistance on SMPS Fuse after frst removing AC power cord.
5. If fusses are open replace SMPS.
6. If fuses are OK:
√ Standby: A13V (Always On) to Main Board. Should all be approx. 9 VDC
7. If any missing remove the SMPS connector to Main Board .
√ Standby A13V again for 9VDC.
- If OK replace Main Board.
- If still missing replace SMPS.
FUNCTION/IR Control
TV in Standby
√ LED Status
2. If LED is OFF
√ LED 1.7Vdc (pin 8) and VCC for 3.3Vdc (pin 3)
• If missing suspect Function Assy/Cable Assy/Main Assy.
3. If LED is ON
√ Switch Operation activates on screen display.
- If missing:
√ Key _Input1 Pin 6 change to 0V with a command.
- If wrong voltage or no change:
√ Switch for stuck or miss-operation.
4. Check IR operation with Standard Remote command changes. (3.3V to 2.5V effective DC) SDA5. , SCL for effective 3.3Vdc (after power on)
- If missing suspect Function Assy/Cable Assy/Main Assy.

BACKLIGHTS
Activate Backlights Test:
1 - Disconnect Lead Cable from Main Board to Power Supply.
√ TV Screen for active backlight LEDs.
2. If NO BACKLIGHTS
√ Minus (Control) & Plus pins (Supply) on the Panel Connector voltages to the Panel.
- If no pin voltages replace SMPS.
3. If BACKLIGHTS ON BUT PANEL SECTION(S) OFF
√ The Supply Drive + pins. All should measure same.
- If a + pin measures higher voltage, a string(s) of LEDs are likely open.
- Remove Panel connector and verify same open backlight voltage condition. Replace Panel.
4. If a + pin measures low voltage disconnect connector to panel
√ The Low Plus Pin Voltage again.
- If it stays low the SMPS is defective, if it goes high, defective Panel.
For BACKLIGHT DIMMING PROBLEMS:
• Go to Menu > Picture > Backlight and vary level (0 – 20)
• If no backlight changes observed:
√ Panel Connector minus (-) pin voltages and P-DIM voltages (CNL801) while changing backlight level.
• If minus Panel voltages don’t change, and P-DIM changes, replace SMPS.
• If P-DIM doesn’t change replace Main/T-CON Board.
MUTE > 4 >1> 9> EXIT; to test Panel Backlight Sections
ONE CONNECT MINI
If No Video Disconnect OCB Cable.
√ "Disconnect Banner" Displayed.
2. If Banner Appears.
√ One Connect Box / Cable (defective).
3. If No Banner continue.
Video Operation : Generated on Main Section.
If OK:1.
√ Source & Input Cables.
√ Other inputs.
√ One Connect Cable/Box.
2. If Noisy:
√ T-CON Section Test Patterns.
Video Operation : Generated at Pre FRC, of T-CON Section.
If OK:1.
√ Main Section.
2. If Noisy:
√ Post FRC Pattern.
Video Operation : Generated at Post FRC of T-CON Section.
If OK:1.
√ Main / T-CON Board (defective).
2. If Noisy:
√ Mute - 369 – Mute
Video Operation : Generated at T-CON Section.
If OK:1.
√ Main / T-CON Board (defective).
2. If Noisy:
√ Main / T-CON Board.
AUDIO
• No TV Sound
√ Menu → Audio → Speaker Settings set to TV Speaker
• Noisy / Distorted TV Audio
√ Customer Menu → Support → Sound Test
• If Sound Test FAILS : (Missing / Noisy Audio)
√ Speakers (compare resistance/quality)
• Compare audio level out to speakers with multi meter.
√ Replace defective Speakers or Main Board or Cable.
• IF Sound Test OK :
√ Audio Source & External Cables.
√ With external Audio Generator (device or App).
√ Other Inputs.
√ One Connect Mini.
• Optical Digital Out Errors
√ Red light from Optical Digital Out.
• If missing replace One Connect Mini.
No HDMI Audio
√ Source / HDMI Cable & One Connect Mini Connectors.
• Swap with other HDMI Inputs/Sources.
• Perform EDID Write in Factory Mode (Can restore missing HDMI Audio).
√ Bulletins and Latest frmware on TV.
• If not restored replace One Connect Mini/Main.
• Check Audio Format PCM/Dolby based on external Receiver.
• ARC Issues
√ HDMI Cable is input to the ARC Designated HDMI port.
√ ARC (HDMI Control) is enabled on the external Receiver.
• Bluetooth Audio "Sound Share" Connection Issues
√ Sound Bar is in TV Mode.
• To Connect, Press & Hold Play Button until Sound Bar pairing mode begins.
Network - TV to Router "Failure"
• Wired & Wireless MAC Address in Customer Support Menu.
√ No Wired MAC Address: Replace Main Board.
√ No Wireless MAC Address: Module cabling & voltages from Main Board.
√ If operating voltages are OK but signal missing.
• Replace WiFi Module (WiFi/Bluetooth Module).
• Proper security passcode
√ Check Wi-Fi signal strength at TV (use WiFi Analyzer or similar App).
• Try another source (Hot spot or Test Router).
√ Check related Bulletins.
√ Check Factory Mode → SVC → Info → WiFi Error Count (replace module for high error counts).
Router to Network "Failure"
• Instruct the customer the TV has proper connection to the router and is likely OK.
√ Check other devices using network are OK. If they test OK this does not mean the TV should be working.
• Try another source (Hotspot) to test/show TV Network operation.
Smart Hub
Go to Menu > Support > Self Diagnosis > Smart Hub Connection Test
Factory Mode - With Factory Remote control
1. Power TV ON.
2. Select TV Source.
3. Info → Factory.
4. Use MENU for return.
With Samsung IR Remote control (Limited Operation)
1. TV Power Standby.
2. Press as follows.
• Remote Button : INFO > MENU > MUTE > Power
• Option (must set Option Bytes when replacing Main Board.)
• Option → Factory Reset (returns TV to out of box condition. Does not reset Apps.)
• SVC → Test Patterns
• SVC → Info → ER Count (Important to check for errors.)
- Resets to 0 with Factory Reset.
First Screen Appearing in Factory Mode (SAMPLE)
Factory Reset
Setting Option Bytes
1. Enter Factory Mode with Service Remote (only).
2. Check Option Byte Table located on GSPN (Fast Track or Tips).
3. Select each item to change.
4. Soft power TV Off to load.
Check Test Patterns
1. Verify "Scaler Pattern" and "US Post Pattern".
2. Verify "FRC Pre Test Pattern".
3. Verify "FRC Post Test Pattern".
4. Verify "SoC TCON Test Pattern".
• WD Count: Watch Dog (Hardware related issue).
• AR Count: Auto Reset (software (i.e. Apps) related.
- important Error Count Status Screen.
• Verify each item listed.
Remove ALL HDMI connections.
2. Factory Mode → Control → EDID. (→ Enter Key)
Updating the TV’s Software
View your TV's software version and update it if necessary.
• Settings > Support > Software Update
Updating the TV’s software to the latest version
• Settings > Support > Software Update > Update now
You can update your TV’s software by downloading the update from the Internet directly to your TV or copying the update from a USB device that contains it to your TV.
• Updating from the Internet requires an active Internet connection with no interruption.
• To update using a USB flash drive, download the update package from "Samsung.com" to your computer. 
Then, save the update package in the USB device's top-level folder. Otherwise, the TV will not be able to locate the update package.
[DO NOT turn off the TV’s power until the update is complete. The TV will turn off and on automatically after completing the software update. All video and audio settings return to their default settings after a software update]
Updating the TV automatically
• Settings > Support > Software Update > Auto Update
If the TV is connected to the Internet, you can have the TV's software update itself automatically while you are watching the TV. When the background update is completed, it is applied the next time the TV is turned on.
• This function may take a longer time if another network function is running concurrently.
• This function requires an Internet connection.
• If you agree to the Smart Hub terms and conditions, Auto Update is set to On automatically. If you do not want the TV's software to update itself automatically, set Auto Update to Off.
SMPS POWER
1. Power TV On.
√ PS_ON. 2Vdc (when off) changes to 3.3Vdc (on)
- May already be On if IoT USB is loaded or TV Smart Things Hub mode is active.
2. if voltage error or no change.
√ Jog Function Control Test.
3. If OK replace Main Board.
√ All A13V supplies to full voltage level 12.7VDC.
4. If any wrong voltage, remove the SMPS connector to Main Board.
√ A13V again for 12.7VDC.
5. If OK replace Main Board.
6. If still wrong voltage replace SMPS.
√ OD (Over Voltage Detect) : 3.3Vdc (Operating Normal)
7. If 0V or changing, an SMPS or Panel error exists.
8. Perform Backlight Test.
√ Backlight On/Off 0V Off to 5Vdc ON.
√ If missing/error replace Main Board.
SMPS board and pin map