JVC AV21D14, JVCAV21F14 – CRT TV – schematic diagram

 AV21D4, AV21F4 - JVC CRT TV - circuit diagram

AOC LC42H133, power board (SMPS) schematic, Samsung MX F730 mini system power board schematic and Philco PH32ME power board schematic

 

Samsung MX F730 Mini System  Power board schematic

Used IC: NCP1379, SPA17N80 (FET)

AOC Power Board; 715G3829P03W30003S schematic diagram

Used ICs: FAN7529MX, A6069H, LD7523GS, OZ9976GN-C-0-TR

CCE39G, Philco PH32ME CCE D32 – Power board schematic

Used ICs: L6562, LD7535 or SG6848, F13N50 (FET), PC817B (Opto-coupler)

How to update the software of AOC LE43F1761 smart TV

 

AOC LE43F1761-35 FHD ISDB Smart TV:  FHD 1920*1080, Widescreen 16:9 Aspect Ratio: 60Hz

How to enter the service mode (Factory Mode)

Press "Menu" key to enter the menu interface, then press 8202 to enter factory menu.

MSD6306-ISDB Factory Mode Adjustment

MSD6306 software upgrades (After Service)

Preparatory work before the upgrade
Recorded all the ADC and the white balance data of all the message source in factory menu before upgrade(FLASH initialization may occur after the upgrade, flush color calibration data, then restore the data you have been recorded):
1. In the condition of YPbPb message source, press the MENU button after appear the main menu, then followed by 8202 number keys to enter the factory menu, select ADC ADJUST item, press the OK key to enter the next level menu, move the cursor to the MODE item, press the left / right Moving button and move the cursor selection in YPbPr (SD)item, record the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value.
2. In the ADC ADJUST item, press OK key to enter the next level menu, move the cursor to the MODE item, press the left / right cursor keys to select YPbPr (HD) item, record R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value.

3. Operations and procedure of software upgrading:
3.1. Changed the file name to "MERGE.bin", then stored software in the FAT32 format blank U disk.
3.2. Insert USB flash disk into the USB upgrade port, upgrade the software according to the following the operating instructions:
Select AIR or TV signal source, press Menu key to pop up the main menu, then choose.

Select Software Update (USB), press right key or OK key to enter.

Software update menu will pop up when press confirm key, then select “Yes” to confirm:

The process of software updating:

Method 2：Keep pressing VOL+ and CH+ keys on the machine panel, power on the machine, the standby light flashes quickly after about 5 seconds, standby light extinguish and turn into lighting after about a minute, means that the upgrade is completed.

Notice
①. When the machine Upgrading (U disk light flash), do not remove U disk or switch off the power, otherwise it will destroy the software and lead cannot upgrade.
②. The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.

When cannot upgrade in accordance with the step two, or upgrade failed, can only ISP upgrade, please refer to the following instructions.
ISP to upgrade tools and materials （When main board cannot use USB interface to upgrade）:
* Personal computer （WINDOWS XP system,USB2.0）
*AC100~240V power supply and power cord
*ISP burning board
*Drivers for ISP burning board ISP
*ISP_Tool_XC_V1.10.exe
*VGA cable
*VGA EDID and HDMI EDID data.

Connect the ISP burning board and TV VGA port with VGA cable.

Insert the Mstar USB Tool into the USB port of your PC. The PC can recognize the new device. You can choose to install it in the list, or choose to install at a specified directory and specify the path to the drive file. See the figure below:

When PC finds the drive file, it will give the prompts as in the figure below during the installation process. Please click “Continue" to go ahead. The system will go through three drive installation processes, including Mstar USB Debug Tool A, Mstar USB Debug Tool B, and Mstar USB SerialPort. They will be installed one by one.

Software burning
a. When the drives are installed, connect the Mstar USB Tool board to TV main board in the following way. Then connect the power cord and run the software ISP-Tool V4.5.3.5.exe.

b. In the config menu bar, select Use USB > and > Auto release USB

Port Type under the Communication Setting items

select USB. Set the burning speed of 28 in I2C Speed Setting item, ISP Slave Address item menu select OX92，Serial Debug Slave Address menu select 0XB2.

Click Connect button, If it prompts "Device Type is GD25Q32" means that connect normally; If it prompts "Program File Not Ready!" means that there is poor connection, please have a check.

Click "Read" button, then click "Read" button again to load the current mainboard software.

Click "Auto" button, then set it according to the following figure.

Then press "RUN" button to burn software.

When display “PASS” after burning, means that software has burnt successfully.

Never plug or unplug the connection lines in the burning process. Please turn the power switch to “Off” when installing ISP board. Pull out the power cord from the machine and then pull out the burning adapter from the machine, when burning completed, change the TV and click RUN.

Run button to burn next machine.
When upgrade complete, install the machine back cover, then must be adjusted before leave factory.

Power to the machine, press MENU button on the remote control to popping the main menu, press 8202 number keys and then will popping the factory menu automatically, move the cursor to the "SPECIAL SET" option, press the remote control OK key to enter the next level menu, select "Restore User Default" in SPECIAL SET submenu, press OK key and the machine will black screen and restart after about 8 seconds, complete the reset action.

Run the KTC-LCD test software, switch to the mosaic picture and best resolution. Press MENU key to popup the main menu, and then press 8202 number keys to enter the factory menu, press the shift down key to ADC ADJUST option to press OK key to enter the next level menu. In the MODE option press left/right cursor keys to select RGB, and then press shift douwn key to move the cursor to the Auto ADC option, press OK key to enter the next level menu, press the left/right button to implement ADC action (The screen will flash and Auto ADC function menu prompt SUCCESS means that debug success, prompt FAIL said that debug failed, try again), press the MENU button to exit factory menu when debugging completed.

Under the YPbPb message source, press the MENU button after popping the main menu, then press 8202 number keys to enter the factory menu, select ADC ADJUST item, press the OK key to enter the next level menu, move the cursor to the MODE item, press the left/right Moving key mover cursor to select YPbPr(SD)item, change the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value of the machine after the upgrade to the value before the upgrade.

In the ADC ADJUST item, press OK key to enter the next level menu, move the cursor to the MODE item, press the left/right keys tomove cursor select the YPbPr(HD)item, change the R-GAIN/G-GAIN/B-GAIN value and R-OFFSET/G-OFFSET/B-OFFSET value of the machine after the upgrade to the value before the upgrade.

Complete the ADC ADJUST debugging, press MENU key succession to exit the factory built-in menu to save the adjusted data, and then restore the original packaging.

AOC LE32S5970 and Philips 32PHG5102, Philips 43PFG5102, Philips 49PFG5102-Service mode, software update and power supply (SMPS) schematic (circuit diagram)

 

The schematic diagram of AOC LE32S5970 and Philips 32PHG5102 TPM17.7LIA  are similar

Applicable to: Philips: 32PHG5102/77, 32PHG5102/78, 32PHD5102/55, 43PFG5102/77, 43PFG5102/78, 43PFD5102/55, 49PFG5102/77, 49PFG5102/78, 49PFD5102/55

Service Modes - Service Alignment Mode (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.

SAM mode overview

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.

Factory mode overview

Customer Service Mode (CSM)

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.

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.

CSM overview

Software Upgrading, Error code and Panel Code

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

The following update is for .upg file.
Step 1: Ready for F/W Upgrade
1. Rename the file to “autorun.upg”
2. Prepare a USB memory.
3. Copy the software to USB flash disk(root directory).
4. Switch on 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 the version of this F/W before you change the software file name.

Step 3: Check the SW version
1. After burning software, TV will restart
2. Press “123654”, enter Customer service 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 Code

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 following 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.

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):
• +5V-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
• +1V8, 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
+1.2V_DEMOD voltage for Demodulator IC channel decoder
• +3V3SBI,voltage for WIFI

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A 715G7574 PSU(For (For 43”/49” 5102 Series) schematic