Acer V173 LCD Monitor How to enter service mode, firmware update, SMPS circuit diagram

When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
Keep wires away from high voltage, high temperature components and sharp edges.
Keep wires in their original position so as to reduce interference.
Adjustment of this product please refers to the user’ manual.

ACER BV173 is designed with LVDS interface and dual (VGA&DVI) input, it featured with embedded universal AC power supplies. It’s a green product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor. The monitors shall automatically display lower resolution video modes into 1280x1024 full screen display .The image can be adjusted through OSD control.

OSD Function Test

Test mode: 1280x1024 @ 60 Hz

Test pattern: pattern #1 of crosshatch (GENERAL-1)

Check single key function and hot key function about key “Power”, “Menu”,” ►”, “◄ “, Exit/Auto”, “[e Color ]” it should operate normally.

Screen Picture Check
Test mode: 1280x1024 @ 60 Hz
Test pattern: pattern #1 of crosshatch (GENERAL-1)
Select OSD menu to execute ‘Auto’ function, screen picture shouldn’t appear abnormal phenomenon and picture on screen should fit in with active display screen.

Auto Color Balance
Test mode: 640X480 @ 60 Hz
Test pattern: pattern #42 of 5 mosaic pattern
Enter "Factory Mode" pressing "MENU" key, execute "AUTO".
When Color Balance finished, Must push “POWER” key to exit “Factory mode”, and restart.

Timing Check

Test mode: Refer to preset timing table and power saving mode

Test pattern: pattern #1 of crosshatch (GENERAL-1)

After change above timing and execute “Auto” function automatically, picture should fit in with active display screen.

Under power saving mode, LED lamp on the key board should be orange

Power Consumption Function Test

Test mode: 1280x1024 @ 60 Hz

Test pattern: pattern #41 of “WHITE”

Adjusting both brightness value to maximum

VGA Cable Detect Test

If VGA cable of LCD monitor isn’t connected to video pattern generator or PC, “NO SIGNAL” should be shown on screen.

Hi-Pot test
Test condition:
a. high voltage 2.3KV(DC)
b. leakage current 10mA
c. rising time 1 sec.
d. test time 3 sec.

Grounding Test
Test condition:
a. test current 30A / 2 sec
b. impedance < 0.1Ω

DISPLAY CHECK
Panel Flicker Check
Connect LCD monitor to PC, set LCD monitor to be timing of 1280x1024@60 Hz, adjust brightness to be default value (brightness at maximum), execute “Auto” function, and then check picture of shut down under windows operating system, or flicker-pattern of pixel on-off. It should be that no flicker be found on panel screen

Panel Defect Inspection
Test mode: 1280 x 1024@60Hz
Test pattern: Crosshatch/Full white/Red/Green/Blue/Black/16 color bar/64 gray bars
Display quality must be (according to DIN 13406-2 pixel fault class II)

Note 1: Dot defect is defined as the defective area is not larger than 50% of the dot area. Bright Dot is defined 5% transmission ND filter.
Note 2: Light Leakage: There shall not be visible light around the customer’s bezel after assembly in normal View angle.

SOP of firmware upgrade (Manufacturer of Scaler is RealTek)

Equipment: PC, ISP card, signal cable and power cable.

ESD requirements: anti-static wrists, anti-static gloves (fingers), and connecting cable

Name of ISP program: RTDTool_4.6.exe

Manufacture of FW IC：RTD 2525L

Operational steps:
1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state

2. Adjust ISP programming
Double click RTDTool_4.6.exe and open ISP program, then select “25XXV/2525L”, and RTD 2120 ISP button.

Select Bank2 size which is 30.

Click “64K”button and download FW file.

Click “64~96”button, and download extern FW file

“program “button, then you will see ISP will going on. There will be prompting if programming is OK.

Factory Mode [Service mode]

Click on the picture to magnify

Switching Mode Power Supply
AC Current Input Circuit
P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input voltage is from 90v to 264V. R801 and R802 joined between two inputting main circuit to prevent from shock. L801 is used to clear up low frequency wave. C801 and C802 are used to discharge the waves that L801 produced. High frequency waves are damped by C801 and C802. D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to DC.
High Voltage to Low Voltage Control Circuit C804 is used to smooth the wave from rectifier. IC802 is a highly integrated PWM controller.  When rectified DC high voltage is applied to the Vcc pin during start-up, the MOSFET Q804 is initially off, and the Vcc pin capacitor is charged. When the Vcc pin voltage reaches approximately 10V, the control circuitry is activated and the soft-start begins. The soft-start circuit gradually increases the duty cycle of the MOSFET from zero to the maximum value over approximately 4ms. If no external feedback/supply current is fed into the CS pin by the end of the soft-start, the current Set point will be above the fault level, FAULT flag is raised, if the FAULT duration exceeds 80ms, the output controller disable.

Resistor R808, R809, R810, R811 are for line over voltage shutdown(OVP) When PWM is turned off, the main current flow will be consumed through R804 and D802, This will prevent MOSFET Q804 from being damaged under large current impulse and voltage spike. D804 and C807 to provide internal Auxiliary voltage to Vcc pin during normal operation. Otherwise, error amplifier and feedback current input the CS pin for duty cycle control.

 DC_5V and DC_14V Output Circuit

For DC 5V, D805 is used to rectify the inducted current. R828 and C814 are used to store energy when current is reversed. The parts including C818, C822, C820,L803 are used to smooth the current waves.

For DC 14V, D803 is used to rectify the inducted current. R827 and C813 are used to store energy when current is reversed. The parts including C815, C817 and L802 are used to smooth the current waves.

Feedback and OVP Protect Circuit

Pin R of IC803 is supplied 2.5-v stable voltage. It connects to 5V and 14V output through R822, R823 and R824. R822, R823 and R824 are output sampling resistor. When the sampling voltage more than 2.5V or less than 2.5V, current of FB IC802 will change, this can change the voltage from T801.  OVP Protect Circuit: When output is overvoltage, the auxiliary winding voltage will be increased, when it reaches about 14V. Q803 is triggered. It makes the IC802 Pin 1 exceed 5V, and then the IC802 output will be disabled.

Q801, R816, R817 and ZD803 make up of dummy loading circuit. For start-up sequence, during 5V output take place high loading first, this dummy loading circuit operated to insure 14V not be increased.

InnoLux BV173 SMPS board schematic

Inverter circuit

14VDC provides the power for IC501; the control signals Brightness and ON/OFF come from I/F board. ON/OFF signal connect to pin8 of IC501 and makes IC501 enable. Brightness signal connect to pin7 of IC501 and regulates the panel brightness, R510 , R511, C507 make up a network of delaying time circuit . The striking frequency is determined by the external Resistor R505 pin5 of IC505and r516. The operation frequency is determined by the external Resistor R505 pin5 of IC505. the capacitor and resister connected to pin4 to set striking time and shunt down delay time. BURST MODE dimming pulse frequency and duty is regulated by I/F board.

The output drives, include square pulses output of pin14,12,11 to drive MOSFET U501, U502, and U501, U502 are N channel MOSFETs. U501 and U502 work as half-bridge topology. Two transformers are connected in parallel with each transformer driving two lamps in series. Turning each N-Channel MOSFET “on/off” complementarily, produces an alternating current through the transformer primary and secondary. The “on” duration of the switches determines the amount of energy delivered to the CCFLs.  The current flowing through CCFL is sensed and regulated through sense resistor R502, R543. The feedback voltage connected to Pin2 (ISEN), then compared with a internal reference voltage, resulting in PWM signal outputs to adjust output voltage.

Over Voltage Protection and over-current protection are monitored by the voltage on OV(Pin 1) and LI (Pin2) During normal operation , if a CCFL is damaged or removed ,the voltage at OV (Pin6) increases .Once the voltage at OV Pin exceeds 1.2V (OVPT Setting) the driver output duty cycle is regulated and the shutdown delay timer is activated. Once over the delay time the IC will shut down

How to disassemble FWM15 Philips MP3 3CDC Mini System 3CDC-LC-MP3CD2002 (3 Disc Carousel Changer)

1. Disconnect flex foil cable from the old CD drive
2. Put a paperclip on the flex foil to short-circuit the contacts.
3. Remove the old CD drive
4. Remove paperclip from the flex foil and connect it to the new drive
5. Position the new CD drive in its studs
6. Remove solder joint from the Laser unit.

[The laser diode of this CD drive is protected against ESD by a solder joint which short-circuits the laser diode to ground.
For proper functionality of the CD drive this solder joint must be removed after connection the drive to the set.]

Emergency open

In case of a Supply fault, the tray can be opened manually.

1. Remove the top cover of the set to get access to the Changer Module.

2. Turn gearwheel clockwise (as shown in picture below).

Dismantling of Tray

1. Open the tray.
2. Release 2x catch as shown in fig.
3. Pull tray out.

Assembling of Tray

1. Turn Cam clockwise to end position.

2. If necessary - move Guiding to the right end position.

3. Insert the Tray.

Exploded view

BN44 00338B used with Samsung LE26C450E, Samsung LN32C450 LCD TVs and Changhong LCD32B1000C LCDTV SMPS FSPSX5D schematics

BN44-00338B -  used ICs FAN7530M, ICE3BR1765J, FSFR1800U – Samsung LE26C450E, Samsung LN32C450 LCD TV power supply circuit diagram

Schematic [Click on the schematics to zoom in]

Changhong FSPSX5D – LCD32B1000C LCD TV SMPS used ICs LD7537, 5N65-FET

LG M1962D - How to update the software, ADC adjustment, EDID adjustment - LCD MONITOR TV

Applied to LD93A chassis 19/20/22/23 and 27 inch LCD Monitor TV which is manufactured in TV (or Monitor) Factory or is produced on the basis of this data.

1. The adjustment is according to the order which is designated and which must be followed, according to the plan which can be changed only on agreeing.
2. Power Adjustment: Free Voltage
3. Magnetic Field Condition: Nil.
4. Input signal Unit: Product Specification Standard
5. Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25°C ± 5°C
Relative humidity : 65 ±10%
Input voltage : 220V, 60Hz
6. Adjustment equipment: Color Analyzer (CA-210 or CA- 110), Pattern Generator (MSPG-925L or Equivalent), DDC Adjustment Jig equipment, SVC remote controller
7. Don’t push The “IN STOP KEY” after completing the function inspection.

Main PCB check process

APC - After Manual-Insult, executing APC download

1. Execute ISP program "Mstar ISP Utility" and then click "Config" tab.

2. Set as below, and then click "Auto Detect" and check "OK" message.  

If display "Error", Check connect computer, jig, and set.

3. Click "Connect" tab.

If display "Can’t ", Check connect computer, jig, and set.

4. Click "Read" tab, and then load download file (XXXX.bin) by clicking "Read

5. Click "Auto" tab and set as below

6. Click "Run".

7. After downloading, check "OK" message.

DOWNLOAD USB
1. Put the USB Stick to the USB socket
2. Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is Low, it didn’t work.
But your downloaded version is High, USB data is automatically detecting
3. Show the message “Copying files from memory”

4. Updating is staring.

5. Updating Completed, The TV will restart automatically.
6. If your TV is turned on, check your updated version and Tool option. (explain the Tool option, next stage)

* If downloading version is more high than your TV have, TV can lost all channel data. In this case, you have to channel recover.

if all channel data is cleared, you didn’t have a DTV/ATV test on production line.

* After downloading, have to adjust TOOL OPTION again.

1. Push "ADJ" key in service remote controller

2. Select "1.Tool Option" and Push “OK” button

3. Punch in the number. (Each model has their number.)

4. Completed selecting Tool option

ADC Process

1 ADC Calibration Internal
ADC is executed automatically using internal pattern.
 If ADC is executed by ADC Calibration Internal, RGB and Component is executed at the same time.
Remove the all input jack from set.
Press the ADJ KEY on R/C and enter EZ ADJUST.
Press “Power only” key of service remocon.(Baud rate : 115200 bps).
Select “3. ADC CALIBRATION Internal” by using / (CH +/-) and press ENTER.
Select “Start” and press navigation key.
ADC Calibration Internal is executed automatically.
Press EXIT key on R/C.

ADC Calibration External

( If ADC calibration had done in internal process, It doesn’t need to use this process.)

1) Auto RGB Gain/Offset Adjustment

Convert to PC in Input-source

Signal equipment displays

Output Voltage: 700 mVp-p

Impress Resolution XGA (1024 x 768 @ 60Hz)

Model : 60 in Pattern Generator

Pattern : 29 in Pattern Generator (MSPG-925 SERISE)

Adjustment pattern (PC )

Press the ADJ KEY and then select “2.ADC CALIBRATION

External” by using / (CH +/-) and press ENTER.

Confirmation
Confirm whether “0xAA (RGB)” address of EEPROM “0xA2” is “0xAA” or not.
If “0xAA (RGB)” address of EEPROM “0xA2” isn’t “0xAA”, adjust once more
Confirm the ADC values from “0xA4~0XA9 (RGB)” addresses in a page “0xA2”

*Manual ADC process using Service Remocon. After enter Service Mode by pushing “ADJ” key, execute “4.ADC Adjust” by pushing “Right ” key at “ADC CALIBRATION: RGB”.

2) Component Gain/Offset Adjustment
Convert to Component in Input-source
Signal equipment displays
Impress Resolution 1080i
MODEL: 223 in Pattern Generator(1080i Mode)
PATTERN: 65 in Pattern Generator(MSPG-925 SERISE)*

Press the ADJ KEY and then select “2.ADC CALIBRATION External” by using / (CH +/-) and press ENTER.

Confirmation
Confirm whether “0xB3 (480i)/0xBC (1080i)” address of EEPROM “0xA2” is “0xAA” or not.
If “0xB3 (480i)/0xBC(1080i)” address of EEPROM “0xA2” isn’t “0xAA”, we adjust once more
We can confirm the ADC values from “0xAD~0XB2 (480i)/0XB6~BB (1080i)” addresses in a page “0xA2

*Manual ADC process using Service Remocon. After enter Service Mode by pushing “ADJ” key, execute “ADC Adjust” by pushing " "key at “ADC CALIBRATION :COMPONENT”. Impress Resolution 1080i.

Function Check

1) Check display and sound

Check Input and Signal items. (cf. work instructions)

1. TV

2. AV (SCART1/SCART2/CVBS)

3. COMPONENT (1080i)

4. RGB (PC : 1360 x 768 @ 60Hz –M1962D) (PC : 1600 x 900 @ 60Hz –M2062D) (PC : 1920 x 1080 @ 60hz –M2262D&M2362D/M2762D)

5. DVI (PC : 1360 x 768 @ 60Hz –M1962D)  (PC : 1600 x 900 @ 60Hz –M2062D) (PC : 1920 x 1080 @ 60hz –M2262D&M2362D/M2762D)

6. HDMI

7. PC Audio In

* Display and Sound check is executed by Remote controller

Total Assembly line process

Adjustment Preparation

W/B Equipment condition

CA210: CH 9, Test signal: Inner pattern (85IRE)

Above 5 minutes H/run in the inner pattern. (“power on” key of adjust remote control)

15 Pin D-Sub Jack is connected to the AUTO W/B EQUIPMENT

Adjust Process will start by execute I2C Command (Inner pattern (0xF3, 0xFF).
* Caution
Color Temperature: COOL, Medium, Warm
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and adjust other two lower than C0. (when R/G/B Gain are all C0, it is the FULL Dynamic Range of Module)

W/B condition
Surrounding Temperature: 20 % ~ 80 %
Surrounding Temperature: 25±5 °C
warm-up Time: Under 5 Min
* Manual W/B process using adjusts Remote control.
After enter Service Mode by pushing “ADJ” key,
Enter White Pattern off of service mode, and change off > on.
Enter “W/B ADJUST” by pushing "Right " key at “5. W/B ADJUST”.

* After done all adjustments, Press “In-start” button and compare Tool option and Area option value with its BOM, if it is correctly same then unplug the AC cable.  If it is not same, then correct it same with BOM and unplug AC cable.
For correct it to the model’s module from factory JIG model.
* Don’t push The “IN STOP KEY” after completing the function inspection.

DPM operation confirmations
Check if Power LED Color and Power Consumption operate as standard.
Set Input to RGB and connect D-sub cable to set
Measurement Condition: (100~240V@ 50/60Hz)
Confirm DPM operation at the state of screen without Signal
DDC EDID Write (RGB 128Byte )
Connect D-sub Signal Cable to D-Sub Jack.
Write EDID DATA to EEPROM (24C02) by using DDC2B protocol.
· Check whether written EDID data is correct or not.
DDC EDID Write (DVI 128Byte )
Connect DVI-D Signal Cable to DVI Jack.
Write EDID DATA to EEPROM (24C02) by using DDC2B protocol.
Check whether written EDID data is correct or not.

DDC EDID Write (HDMI 256Byte)
Connect HDMI Signal Cable to HDMI Jack.
Write EDID DATA to EEPROM(24C02) by using DDC2B protocol.
Check whether written EDID data is correct or not.
Serial number (RS-232C)
press “Power on” key of service remocon.(Baud rate : 115200 bps)
Connect RS232 Signal Cable to RS-232 Jack.
Write Serial number by use RS-232.
Must check the serial number at the Diagnostics of SET UP menu. (Refer to below)

EDID DATA

EDID download

1) Press “Power only” key of service remocon.(Baud rate : 115200 bps).

2) Press the ADJ KEY on R/C and enter EZ ADJUST

3) Select “7.EDID D/L” by using / (CH +/-) and press ENTER.

4) Select “Start” and press navigation key( ).

5) EDID download is executed automatically.

6) Press EXIT key on R/C.

Samsung MAX A55U – three CD changer – Power board, amplifier section circuit diagram, micom initialization

Samsung MAX-A55U, MAX-A55U/XAH Three-CD Changer  MINI-Compact System  SMPS, Power amp schematic, system update 

Output Power
AMP TYPE: ANALOG AMP
OUTPUT: 90W x 2
TOTAL: 180W (PMPO 3000W)

Main System MICOM control Function IC (R2S15904), Tuner pack, CD deck.
It gets all information from R2S15904. They have a communication among the with HOST ↔ SLAVE interface.
And Main System MICOM gets the information from User’s remote control. So whenever it gets the information, it displays it on the VFD.
* The CD Deck transfer the audio data to R2S15904.
* AUX Jack and Tuner pack are each connected to R2S15904. Data from AUX and tuner transfer to R2S15904.
Then, after processing, the data will send the date to AMP IC.

SMPS (Power board) schematic

MAX55U SMPS

Cases of the SMPS Protection.

1. If there is over current at the AMP IC. (Speaker Wire Short)

2. If temperature of the Amp IC is over 150°C.

3. There is no power input at GATE DRIVER

Click on the schematics to zoom in

MAX A55U SMPS

Power amplifier schematic

MICOM Initialization & Update

MICOM initial
In STANDBY condition, press ‘STOP’ button of Main Unit 5 seconds more, time display as ‘--:--’.
Then Initialization complete.
MICOM update
MICOM update process has changed. Need new MICOM update jig (SANYO TCB87) and debugging program installed PC.
1. Turn on PC and connect TCB87 to PC by USB.
2. Connect TCB87 to SET.
(In MAIN PCB (Location No.: UCW0), Connecting 6 pin cable wire to Update connector.)
3. Turn on SET. (or power cord in)
4. Load update HEX file in the PC. (by SANYO MICOM debugging program)
5. Update.
6. Quit SANYO MICOM debugging program.
7. Turn off SET.
8. Disconnect 6 pin wires from SET.
9. Done. (Update is available only OTP/Flash type MICOM.)

Samsung LE40A656, Samsung LN40B503 Power board BN44-00197A SMPS circuit diagram

ICs Used:  74HC124A, 74HC1G86GV, LX1692A, ICE2QS01, ICE2PCS02G – Used in Samsung LCD TVs LE40A656A1FXXU, LN40B503P7N

Inverter block

PFC block

Standby multi block

Click on the schematics to magnify

Philips BDP3100, BDP3080, BDP5100 SMPS circuit diagram, Software upgrade - Blu-ray Disc Player

BDP3100/12/05/51/55/79/93/96/98/X78, BDP3080/98, BDP5100/12/05/51/93/98 Philips Blu-ray Disc Player - How to update the software, How to take the disc in emergency, Disc loader adjustments after repair

Loader repair Instruction for BDP3100,5100,3080/98

After scanning BARCODE on the new LOADER in supplier – TCL factory, print the one-dimensional code which generated by scanner and computer on label, then paste it into LOADER. If FA test passed, break off the protection point under the LOADER.
Repair Procedure in workshop
1. In region’s workshop, to install loader in the machine then weld the open protection point.  Keep the set to connect the TV and power on, press keys “5” ”1” ”7” ”7” on Remote Control when in the HOME menu, then the menu will be displayed.
2. Select “Enter Barcode Info” from the menu, input the BARCODE of the LOADER and wait until the OSD displays “PASS”, press “STOP” key on Remote Control to go back to the menu.
3. Select “Laser check”, confirm whether the cable is connected and welded protection point is ok.
4. Restart the set, test CD, DVD, BD discs. If OK, the LOADER replacing procedure is finish.

How to take out the disc in emergency

If the tray can’t open in normal way or in the absence of power, you can make it through the instruction as below.

Note: Make sure to operate gently otherwise the guider would be damaged.

Software checks and upgrade

Preparation to upgrade software

1) Start the CD burning software & create a folder named "UPG_ALL",

2) Then copy the Bin file (BDP_3100_S_B.bin ) OR(BDP_5100_S_B.bin )into it,

3) Burn the data onto the blank CD or USB

4) If the model is BDP3100,must use (BDP_3100_S_X.bin )to upgrade If the model is BDP5100,must use (BDP_5100_S_X.bin )to upgrade X(A;B;C)If the model BD code is A,,X=A;BD code is B,X=B;BD code is C,X=C

A. Procedure for software upgrade

A) Upgrade software via Disc

1) Power on the set and insert the prepared Upgrade CDR

2. The set will start reading disc and response with the following display TV screen.

Now searching for the upgrade software, please wait….

                                       STILL

3) Press <OK> button to confirm, then screen will display :

An upgrade software has been found!

Start upgrade with version:WKXXX.X?

                        Cancel                   Start

4) Press Right cursor button to choose "Start", then press <OK>;

5) The software will upgrade and screen will display as below:

Upgrade is ongoing, Please wait…

Please do not unplug or switch off the device.

6) The screen will display as below when upgrading complete:

Upgrade has completed successfully!

Power off after 5s.

Power OFF

5) Restart the set.

SMPS (Power board) schematic and PWB

B) Upgrade software via network

1) Setup the network connection (See "Getting started">"Set up network").

2) In the Home menu, select <Setting> <Advanced Setup> <Software Download> <Network>.

* You are prompted to start upgrading processes if upgrade media is detected.

3) Follow the instructions on the TV screen to confirm update operation.

* Once software updated is complete, this player automatically turns off to standby.

4) Disconnect the power cord for a few seconds and connect again to turn on the player.

C) Update software via USB Flash Drive
1) Go to www.philips.com/support to check if the latest software
version is available for this player.
2) Download the software onto a USB flash drive.
3) Insert the USB flash drive to the USB jack of the rear panel.
4) In the Home menu, select <Setup> <Advanced Setup> <Software Updade > <USB>.
5) Follow the instructions on the TV screen to confrim update operation.
* Once software update is complete, this player automatically turns to standby.
6) Disconnect the power cord for a few seconds and connect again to turn on the player.

Read out the software versions to confirm upgrading

1) Power on the set and open the tray door.

2) Press <Home> button on the remote control

3) Select <Setup>, then press <OK>.

4) Select <Advanced Setup>, press right cursor to choose

<Version Info.>, then press <OK>, the software version and other information will display on the TV screen as below:

Model: BDP3XXX or   BDP5XXX

Versions:

http://www.philips.com/support

MAC:XX-XX-XX-XX-XX-XX

Caution The set must not be power off during upgrading; otherwise the Main board will be damaged entirely.

Samsung UN xxJU series LED TVs – How to troubleshoot abnormal Netflix operation, Soundbar or AV receiver not playing problem

Applicable to Samsung: UN88JS9500FXZA, UN78JS9500FXZA, UN65JS9500FXZA, UN78JS9100FXZA, UN65JS9000FXZA,
UN55JS9000FXZA, UN48JS9000FXZA, UN78JS8600FXZA, UN65JS8500FXZA, UN55JS8500FXZA,
UN48JS8500FXZA, UN65JS850DFXZA, UN78JU7500FXZA, UN65JU7500FXZA, UN55JU7500FXZA,
UN50JU7500FXZA, UN48JU7500FXZA, UN40JU7500FXZA, UN65JU750DFXZA, UN65JU6700FXZA,
UN55JU6700FXZA, UN48JU6700FXZA, UN40JU6700FXZA, UN65JU670DFXZA, UN55JU670DFXZA,
UN75JU6500FXZA, UN65JU6500FXZA, UN60JU6500FXZA, UN55JU6500FXZA, UN50JU6500FXZA,
UN48JU6500FXZA, UN40JU6500FXZA, UN75JU650DFXZA, UN65JU650DFXZA, UN60JU650DFXZA,
UN55JU650DFXZA, UN50JU650DFXZA, UN48JU650DFXZA, UN40JU650DFXZA, UN65JU6400FXZA,
UN55JU6400FXZA, UN48JU6400FXZA, UN40JU6400FXZA, UN75J6300AFXZA, UN65J6300AFXZA,
UN60J6300AFXZA, UN55J6300AFXZA, UN50J6300AFXZA, UN48J6300AFXZA, UN40J6300AFXZA,
UN32J6300AFXZA, UN50J5500AFXZA, UN48J5500AFXZA, UN40J5500AFXZA, UN32J5500AFXZA

Abnormal Netflix Operation
* Netflix App freezes.
* Netflix App plays for a while, and then exits out to the TV source by itself.
* Netflix app is not available.
* Netflix app is not working
Do Not Change any parts.
> Update the TV Software to the latest version.
Make sure to download the S/W file from SAMSUNG.COM 
> Verify the Netflix version in View Details, and then reinstall the application if needed. Refer to Image 1 and Image 2.
> Go to SmartHub > Apps > My Apps. Highlight Netflix, and then press and hold the Enter button on the remote for 3 seconds
> Select View Details to check the Netflix version number and then select reinstall to update/reinstall the application if needed.

A Sound Bar or A/V receiver connected to the TV does not play audio when the TV is playing video from a streaming application.
* The TV speaker has sound.
* The Sound Bar or A/V receiver has sound when the TV is set to a different source including HDMI, but fails to play sound when the TV is playing video from a streaming application such as Netflix.
* The streaming application is outputting Dolby Digital sound. If the Sound Bar or A/V receiver doesn’t support Dolby Digital or DTS, the Sound Bar or receiver will not play the audio.
Do Not Change any parts.
Change the Audio Format in the TV’s menu to PCM while playing video from the video streaming application.
> Play the video from the video streaming application.
> Go to Menu > Sound > Additional Settings and change the Audio Format to PCM.

Updating the TV’s Software
* MENU/123 MENU Support Software Update
You can view your TV’s software version and update it if necessary,  update the TV’s software to the latest version.

* MENU/123 MENU Support Software Update
* MENU/123 MENU 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.
> This function requires an Internet connection.
> Save the update package in the USB device's top-level folder. Otherwise, the TV will not be able to locate the update package.
CAUTION: 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 the default settings after a software update.

Updating the TV automatically.

MENU/123 MENU 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 a different networking 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.

White balance adjustment 

Service mode and display details

Method of Color Calibration (AV)

1. Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port.
2. Press the Source key to switch to “AV1” mode.
3. Enter Service mode.
4. Select the “ADC” menu.
5. Select the “AV Calibration” menu.
6. In “AV Calibration Off” status, press the “► ” key to perform Calibration.
7. When Calibration is complete, it returns to the high-level menu.
8. You can see the change of the “AV Calibration” status from Failure to Success.

Method of Color Calibration (Component)
1. Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port.
2. Press the Source key to switch to “Component1” mode.
3. Enter Service mode.
4. Select the “ADC” menu.
5. Select the “Comp Calibration” menu.
6. In “Comp Calibration Off” status, press the “ ►” key to perform Calibration.
7. When Calibration is complete, it returns to the high-level menu.
8. You can see the change of the “Comp Calibration” status from Failure to Success.
Method of Color Calibration (PC)
1. Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port.
2. Press the Source key to switch to “PC” mode.
3. Enter Service mode.
4. Select the “ADC” menu.
5. Select the “PC Calibration” menu.
6. In “PC Calibration Off” status, press the “ ►” key to perform Calibration.
7. When Calibration is complete, it returns to the high-level menu.
8. You can see the change of the “PC Calibration” status from Failure to Success.
Method of Color Calibration (HDMI)
1. Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port.
2. Press the Source key to switch to “HDMI1” mode.
3. Enter Service mode.
4. Select the “ADC” menu.
5. Select the “HDMI Calibration” menu.
6. In “HDMI Calibration Off” status, press the “►” key to perform Calibration.
7. When Calibration is complete, it returns to the high-level menu.
8. You can see the change of the “HDMI Calibration” status from Failure to Success.

Xoceco and Dynex DX-32L150A11, Initialization, SMPS schematic, Service mode, WB adjustment and more - 32inch, 37inch, 40inch and 46inch LCD TV Used ICs: STR A6059H, STR46059, SSC9500

China LCD TVs - Dynex and Xoceco DX-19L150A11, 22L150A11-DX, DX-24L150A11, 26L150A11-DX, DX-32L150A11, 37L150A11-DX, DX-40L130A11, DX-46L150A11 Power Supply Regulator board for 32,37,40 and 46 inch LCD TVs

Factory Menu – Service mode

a) Press INPUT button, then in turn press “2” “5” “8” “0” to enter the Factory Menu.

b) Press CH+ or CH- to select items, then press OK to enter.

c) Press CH+ or CH- to move the highlight up or down.

d) Press VOL- or VOL+ to adjust the selected item.

e) Press MENU to return to the previous menu.

f) Press EXIT to close the Factory Menu.

g) After closing the Factory menu, you can press SLEEP to enter the Factory Menu directly if power is still on. 

h) In Factory Menu, select “On” for “Aging Mode” to turn on aging mode. Press any button on the unit to exit.
i) “Power on mode” item of “Other setting” has three options: 

“On” means power on directly; “Off” means the unit will be in “standby” state when connect the power supply, and needed to press the “Power” button to turn on; “Memory” means the unit will in the last power-off state after power-on.
White Balance adjustment

Preparations

Before white balance adjustment, let the TV work for more than 30 minutes and be in stable status. Use Color Analyzer CA210 BBY channel for alignment. Only align NORMAL color temperature. To ensure both COOL and WARM color temperature to be able to meet the requirements, please make sure bright step color temperature to be △X≤±5,△Y≤±5, dark step color temperature to be △X≤±5,△Y≤±5.

White balance data alignment at four modes

a) Alignment at ATV mode (AV and S-VIDEO is the same)

In TV mode, set Air/Cable to Air. Input test signal with 11 gray steps. From Factory menu select “Color Temp” item and set “Color Mode” to “NORMAL”, fix GAIN GREEN, adjust GAIN RED and GAIN BLUE to make 9th step color coordinate to be (285, 293). Fix OFFSET GREEN, adjust OFFSET RED and OFFSET BLUE to make the third step color coordinate to be (285,293). In this way repeatedly adjust GAIN RED, GAIN BLUE and OFFSET RED, OFFSET BLUE until two level gray step’s color coordinate be (285,293). Then select “MENU” to return to previous menu or select “SAVE TO EEPROM” to save the white balance.

Check if COOL and WARM color temperature meet the requirement. If not, then adjust GAIN RED, GAIN BLUE, OFFSET RED, OFFSET BLUE to make them meet requirements, and then save.

b) Alignment at DTV mode (HDMI is the same)
In TV mode, set Air/Cable to Air. Input test signal with 11 gray steps. From Factory menu select “Color Temp” item and set “Color Mode” to “NORMAL”, fix GAIN GREEN, adjust GAIN RED and GAIN BLUE to make 9th step color coordinate to be (285, 293). Fix OFFSET GREEN, adjust OFFSET RED and OFFSET BLUE to make the third step color coordinate to be (285,293). In this way repeatedly adjust GAIN RED, GAIN BLUE and OFFSET RED, OFFSET BLUE until two level gray step’s color coordinate be (285,293). Then select “MENU” to return to previous menu or select “SAVE TO EEPROM” to save the white balance.

Check if COOL and WARM color temperature meet the requirement. If not, then adjust GAIN RED, GAIN BLUE, OFFSET RED, OFFSET BLUE to make them meet requirements, and then save.

c) Alignment at YPbPr mode

First perform ADC calibration: input 75% color bar plus gray step signal in 480i/60Hz format, (VG848 Timing is 968, PAT is 918), enter Factory Menu select ADC Setting, do ADC AUTO adjustment once.

White balance adjustment: From VG848 equipment input 8 gray steps signal in 1920 x 1080i /60Hz format. Enter Factory Menu select “Color Temp”, first set “Color Mode” to NORMAL, fix GAIN GREEN, adjust GAIN RED and GAIN BLUE to make the 7th color coordinate be (285, 293). Fix OFFSET GREEN, adjust OFFSET RED and OFFSET BLUE to make the second step color coordinate be (285,293). In this way repeatedly adjust GAIN RED, GAIN BLUE and OFFSET RED, OFFSET BLUE until two level gray step color coordinate be (285, 293). Then select “MENU” to return to previous menu or select “SAVE TO EEPROM” to save the white balance.

Check if COOL and WARM color temperature meet the requirement. If not, then adjust GAIN RED, GAIN BLUE, OFFSET RED, OFFSET BLUE to make them meet requirements, and then save.

d) Alignment at VGA mode
First do ADC calibration: input VESA crosshatch signal in 800 x 600 / 60Hz format (VG848 Timing is 854, PAT is 914), check if the picture is displayed wholly. If not, perform AUTO adjustment by making use of VGA Setting sub-menu from SETUP menu (User menu) so that the picture is displayed wholly.  Then enter Factory Menu select ADC Setting, do ADC AUTO adjustment once to calibrate ADC.  White balance adjustment: From VG848 equipment input 8 gray steps signal in 800 x 600 /60Hz
format. Enter Factory Menu select “Color Temp”, first set “Color Mode” to NORMAL, fix GAIN GREEN, adjust GAIN RED and GAIN BLUE to make the 7th color coordinate be (285, 293). Fix OFFSET GREEN, adjust OFFSET RED and OFFSET BLUE to make the second step color coordinate be (285,293). In this way repeatedly adjust GAIN RED, GAIN BLUE and OFFSET RED, OFFSET BLUE until two level gray step color coordinate be (285, 293). Then select “MENU” to return to previous menu or select “SAVE TO EEPROM” to save the white balance.
Check if COOL and WARM color temperature meet the requirement. If not, then adjust GAIN RED, GAIN BLUE, OFFSET RED, OFFSET BLUE to make them meet requirements, and then save.

Schematic - 32 inch Power Board  

Click on the schematics to zoom in

37 inch Power Board

40 inch Power Board

46 inch Power Board

User menu preset
Enter into Factory menu, select and do Other Setting > SHIPMENT item, then the TV will automatically preset the user menu to default. After alignment this User Menu Preset procedure must be done.
SHIPMENT will do the following
1) Clear all program information
2) Clear V-CHIP information
3) Analog value default setting for all sources
4) Power on mode set to Off
5) Active Setup Wizard menu
Note: after the Preset procedure is complete, it must exit the menu, power off at Standby state and then disconnect the power supply.

EEPROM initialization (not be used unless needed)
The method is: Press the IR POWER/KEYPAD POWER to turn on the TV. 

Before showing LOGO press INPUT SOURCE incessantly until the indicator lights red, then in turn press MENU, VOL+, CH+ (the interval between two press is below 2 seconds). 

The indicator light will turn blue, after a while the unit will be in STANDBY, that means RESET EEPROM succeeds. 

If error key order or key number or the interval is over 2 seconds, the unit will keep on the previous setting and perform the order, then EEPROM will not be cleared.