PHILIPS, MAGNAVOX, SYLVANIA AND EMERSON 40 INCH LCD TVS HOW TO ENTER THE SERVICE MODE, SERVICE MODE ADJUSTMENTS - TROUBLESHOOTING - SMPS SCHEMATIC

Electrical adjustments

Test Equipment Required

NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)

Remote control unit

Color Analyzer

How to set up the service mode

Turn the power on.
2. Press [MENU] button to display Setup menu.
3. Select “Features”.
4. Select “Current Software Info”.
5. Press [0], [4], [2], [5], [7], [4] and [Info] buttons on the remote control unit in this order. The following screen appears.

Purity Check Mode

This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the remote control unit, the display changes.

3. To cancel or to exit from the Purity Check Mode, press [PREV CH] button.

Applicable to:

40” 40” 40” 40” 40” 40”

40MF430B/F7 40MF430B/F7 LC407SS1 LC407SS1 LC407SS1 LC407EM1

MAGNAVOX MAGNAVOX SYLVANIA SYLVANIA SYLVANIA EMERSON

(Serial No. : DS1A) (Serial No. : DS2A) (Serial No. : DS1A) (Serial No. : DS2A) (Serial No. : DS3A)

The White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA.

Symptom of Maladjustment: White becomes bluish or reddish.

Operate the unit for more than 20 minutes.
2. Input the White Raster (70%=70IRE, 40%=40IRE).

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 above.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
4. Enter the Service mode. Press [VOLUME DOWN] button on the remote control unit and select “C/D” mode.

5. [CUTOFF]
Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
[DRIVE]
Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment.
6. In each color mode, press [CHANNEL UP/DOWN] buttons to adjust the values of color.
7. Adjust Cutoff and Drive so that the color temperature becomes 12000°K (x= 0.272 / y= 0.278 ±0.005).
8. To cancel or to exit from the White Balance Adjustment, press [PREV CH] button.

How to initialize the LCD TV

The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.
To put the program back at the factory-default, initialize the LCD TV using the following procedure.
1. Turn the power on.
2. Enter the service mode.
- To cancel the service mode, press [POWER] button on the remote control unit.
3. Press [INFO] button on the remote control unit to initialize the LCD television.
4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.

Firmware renewal

Equipment Required
a. USB storage device
b. Remote Control Unit

[There are two states (the User Upgrade and the Factory Upgrade) in firmware update.]

User Upgrade > Upgrade the firmware only.  The setting values are not initialized.

Factory upgrade > Upgrade the firmware and initialize the setting values.

The identification of User Upgrade and Factory Upgrade are done by the filename.
1. Turn the power off and unplug the AC Cord.
2. Insert the USB storage device to the USB port as shown below.
The USB port “SERVICE TERMINAL” will be blocked by a cross shaped piece of plastic. Cutoff both end of the plastic connected to the PCB Holder as illustrated below.

3. Plug the AC cord in the wall outlet and turn the power on.

4. The update will start and the following will appear on the screen.

Note: If the screen isn’t displayed, repeat from step 1

5. When the firmware update is completed, the following will appear on the screen.

Remove the USB storage device from the USB port.
Turn the power off and turn the power on again.

[When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.]

Troubleshooting table

SMPS [Power supply schematic]

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.  If Main Fuse (F1601) is blown , check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.

Power Supply 1 Schematic Diagram

Power Supply 2 Schematic Diagram

Power Supply 3 Schematic Diagram

SYLVANIA LC220SS2 - EMERSON LC220EM2 - MAGNAVOX 22ME601B - SERVICE MODE – VCOM ADJUSTMENT – INITIALIZATION – FIRMWARE UPDATE

SYLVANIA LC220SS2 - EMERSON LC220EM2 - MAGNAVOX 22ME601B - Service mode – Vcom adjustment – Initialization – firmware update

Service mode:
1. Turn the power on.
2. Press [MENU] button to display Setup menu.
3. Select “Features”.
4. Select “Current Software Info”.
5. Press [0], [4], [2], [5], [7], [4] and [INFO] buttons on the remote control unit in this order. The following screen appears.
1. Purity Check Mode
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time the [7] button on the remote control unit is pressed , the display changes.
3. To cancel or to exit from the Purity Check Mode, press [CH RETURN] or [PREV CH] button.
VCOM Adjustment
1. Operate the unit for more than 60 minutes.
2. Set the color analyzer at the zero point calibration and bring the optical receptor pointing at the center of the LCD-Panel.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
3. Enter the Service mode.
4. Press [3] button on the remote control unit.
5. Press [CHANNEL UP/DOWN] buttons on the remote control unit so that the color analyzer value becomes minimum.
6. To cancel or to exit from the VCOM Adjustment, press [CH RETURN] or [PREV CH] button.
The White Balance Adjustment should be performed when replacing the LCD Panel
or Digital Main CBA.
3. White Balance Adjustment
Purpose: To mix red and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
ITEM SPECIFICATION
Color temperature x= 0.272 +/-0.002
y= 0.278 +/- 0.002
Input Signal Internal pattern
(40/70% raster)
Measurement point Screen center
M. EQ. CA-310 (KONICA MINOLTA
Luminance meter) or
measuring instrument as
good as CA-310.
Aging time 60min.
(Retail MODE/100IRE Raster
HDMI 1080i@60)
MODE setting of TV Shipment setting/ Retail MODE
Ambient
temperature 25 degreeC ± 5 degreeC
1. Operate the unit for more than 60 minutes.
2. Enter the Service mode.
3. Press [VOLUME DOWN] button three times on the remote control unit to select “Drive setting” mode. “Drive” appears on the screen.
4. Set the color analyzer at the CHROMA mode and zero point calibration. Bring the optical receptor pointing at the center of the LCD-Panel.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
5. Press [3] button to select the “HDB” for High Drive Blue adjustment. (“HDB” appears on the screen.)
6. Press [MENU] button. The internal Raster signal appears on the screen. (“Internal (Single)” appears on the upper right of the screen as shown below.)
7. Press [CHANNEL UP/DOWN] buttons to adjust the color temperature becomes 12000 degree K (x= 0.272 / y= 0.278 ±0.002).
8. Press [1] button to select the “HDR” for High Drive Red adjustment (“HDR” appears on the screen.) and press [CHANNEL UP/DOWN] buttons to adjust the color temperature.
9. If necessary, adjust the “HDB” or “HDR” again.
10. Press [6] button to select the “LDB” for Low Drive Blue adjustment (“LDB” appears on the screen.) and press [CHANNEL UP/DOWN] buttons to adjust the color temperature.
11. Press [4] button to select the “LDR” for Low Drive Red adjustment (“LDR” appears on the screen.) and press [CHANNEL UP/DOWN] buttons to adjust the color temperature.
12. If necessary, adjust the “LDB” or “LDR” again.
13. Press [VOLUME DOWN] button to shift to the “Debugging Message” mode.
If there is no message under “[WB]” section, this adjustment completes. If “Drive settings are NG. Retry.” is displayed, repeat above steps from 5. to 12. Then check
“Debugging Message” again. If “Drive settings are NG. Retry.” is displayed, replace the LCD Panel or Digital Main CBA.
14. To cancel or to exit from the White Balance Adjustment, press [CH RETURN] or [PREV CH] button.
INITIALIZE THE LCD TV
The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.
To put the program back at the factory-default, initialize the LCD TV using the following procedure.
1. Turn the power on.
2. Enter the service mode.
- To cancel the service mode, press [POWER] button on the remote control unit.
3. Press [FREEZE] button on the remote control unit to initialize the LCD television.
4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.
Firmware Update Procedure
1. Turn the power off and unplug the AC Cord.
2. Insert the USB storage device to the USB port
3. Plug the AC cord in the wall outlet and turn the power on.
4. The update will start and appear on the screen.
5. When the firmware update is completed, Remove the USB storage device from the USB port. Turn the power off and turn the power on again will appear on the screen.
Note:
When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.

SYLVANIA, EMERSON AND MAGNAVOX 19 INCH LCD TV – HOW TO ENTER SERVICE MODE, ADJUSTMENTS, INITIALIZATION AND SCHEMATICS AND MORE

Sylvania, Emerson and Magnavox 19 inch LCD TV – How to enter service mode, adjustments, initialization and more

Applicable to: Sylvania LC195SLX, Emerson LC195EMX, Magnavox 22MF339B/F7 and many more models of these brands 19 inch LCD TVs. HOW TO INITIALIZE THE LCD TV

The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.
To put the program back at the factory-default, initialize the LCD TV using the following procedure.
1. Turn the power on.
2. To enter the service mode, press the service button on the service remote control unit.
- To cancel the service mode, press [POWER] button on the service remote control unit.
3. Press [INFO] button on the service remote control unit to initialize the LCD television.
4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.

FIRMWARE RENEWAL MODE

Equipment Required

a. USB memory
b. Remote Control Unit

Firmware Update Procedure
Note: There are two states (the User Upgrade and the Factory Upgrade) in firmware update.

The identification of User Upgrade and Factory
Upgrade are done by the filename.
1. Turn the power off and unplug the AC Cord.
2. Insert the USB memory to the USB port.

3. Plug the AC cord in the wall outlet and turn the power on.
4. The update will start and the following will appear on the screen.

“Software upgrade in progress. Please wait.
Do not remove the USB device or turn the TV off while upgrade is in progress”

If the above screen isn’t displayed, repeat from step 1

5. When the firmware update is completed, the screen will be displayed.

Unplug the AC cord and kindly remove the USB memory from the USB port. Plug the AC cord in the wall outlet again and turn the power on.
Note:
When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service  mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.

Service mode

Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed.  Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required
1. NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)
2. Remote control unit
3. Color Analyzer.

How to make the Service remote control unit:
[LC195SLX, LC195EMX]

Cut “A” portion of the attached remote control unit as shown in Fig.

[22MF339B/F7, 19MF339B/F7]
Cut “A” portion of the attached remote control unit as shown in Fig.

[LC225SSX, LC195SSX]
Cut “A” portion of the attached remote control unit as shown in Fig.

How to set up the service mode:
How to enter the Service mode:
1. Use the service remote control unit.
2. Turn the power on.
3. Press the service button on the service remote control unit. The service mode screen appears.

LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7 – SMPS section schematic

22MF339B/F7, LC225SSX – Back-light inverter schematic

22MF339B/F7, LC225SSX – SMPS section schematic

Purity Check Mode
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the service remote control unit, the display changes as follows.

VCOM Adjustment

1. Operate the unit for more than 20 minutes.
2. Set the color analyzer and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
3. Enter the Service mode.
4. Press [3] button on the service remote control unit.
5. Press [CHANNEL UP/DOWN] buttons on the service remote control unit so that the color analyzer value becomes minimum.

The white balance adjustment should be performed when replacing the LCD Panel or Digital CBA.
3. White Balance Adjustment
Purpose: To mix red, green and blue beams correctly for pure white.
Symptom of Maladjustment: White becomes bluish or reddish.

Operate the unit for more than 20 minutes.
2. Input the White Raster(70%=70IRE, 40%=40IRE).

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.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
4. Enter the Service mode. Press [VOLUME DOWN] button on the service remote control unit and select “C/D” mode.

5. [CUTOFF]
Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
[DRIVE]
Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment.
6. In each color mode, press [CHANNEL UP/DOWN] buttons to adjust the values of color.

SYLVANIA - FUNAI - LC195SL9 B - 19 INCH LCD TV - MAIN BOARD CIRCUIT DIAGRAM

SYLVANIA - FUNAI - LC195SL9 B - 19 inch LCD TV - Main board Circuit Diagram

MAIN DIGITAL BOARD SCHEMATIC

SYLVANIA C6615LE 15 INCH COLOR LCD TELEVISION CIRCUIT DIAGRAM

SYLVANIA C6615LE 15 inch COLOR LCD TELEVISION Circuit Diagram

C6615LE 15” COLOR LCD TELEVISION Circuit Diagram. Sylvania and Funai

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.  If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.  Otherwise it may cause some components in the power supply circuit to fail.

The voltage for parts in hot circuit is measured using hot GND as a common terminal.

BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.  ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

SCHEMATIC DIAGRAM [Click on the Schematics to Magnify]

LCD UNIT

Main board [Contains back-light inverter and SMPS]

SYLVANIA & EMERSON 6227FF - EWF2705 - 27"CTV - POWER AND DEFLECTION SCHEMATIC (CIRCUIT DIAGRAM)

SYLVANIA & EMERSON 6227FF - EWF2705 - 27"CTV - POWER AND DEFLECTION SCHEMATIC (Circuit diagram)

DEFLECTION         [ CLICK ON THE SCHEMATICS TO ZOOM IN ]

POWER [SMPS]

SYLVANIA LC200SL - LC370SS8 - 20”&37" COLOR LCD TV - SERVICE MODE- POWER SUPPLY REGULATOR SCHEMATIC

SYLVANIA LC200SL - LC370SS8 - 20”&37" COLOR LCD TV - SERVICE MODE- POWER SUPPLY REGULATOR SCHEMATIC

Service Mode_Initialization_Initial Setting Values_Power Supply Regulator section Schematic & Universal Remote Control Set-up Codes. SYLVANIA LC200SL8 – 20” COLOR LCD TV

Universal Remote Control Set-up code list.

3-digit codes:  004,008,009,062,068,069,074, 075,077,155,161,163,189,198

4-digit codes: 0001 0321 0371 0701 0931 0961 1021 1221 1381 1801 1821 2761 1961 2321 0392

5-digit codes: 20675, 20821, 21268.

SERVICE MODE 

* Use the service remote control unit.
* Turn the power on. (Use main power on the TV unit.)
* Press the service button on the service remote control unit.

PREPARING A SERVICE REMOTE CONTROL OUT OF SUPPLIED REMOTE CONTROL ALONG WITH TV

Cut “A” portion of the attached remote control unit as shown.

INITIAL SETTING VALUES [DEFAULT DATA VALUES]

Enter the Service mode.  Set the each initial data as shown on table.

HOW TO INITIALIZE (Reset) THE TV

* Turn the power on. (Use main power on the TV unit.)
* To enter the service mode, press the service button on the service remote control unit.
>> To cancel the service mode, press [POWER] button on the remote control.
* To initialize the LCD television, press [DISPLAY] button on the remote control unit.
* Confirm "FF" indication on the upper right of the screen.

POWER SUPPLY REGULATOR SECTION CIRCUIT.

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.  If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

CLICK ON THE SCHEMATIC TO ZOOM IN

SYLVANIA LCT6637 - SERVICE MODE - SMPS AND BACK-LIGHT INVERTER SCHEMATIC

SYLVANIA LCT6637 - SERVICE MODE - SMPS and BACK-LIGHT INVERTER SCHEMATIC

Service Mode_Flicker Adjustment _ Initialization _ SMPS & Back-light Inverter Circuit Diagram. Used ICs: OZ9938GN-B-O-T2 (Back-light inverter control) – ba10324af-e2 (Comparator) – UCC28600DR (Switching Control) – 2SK3568 (Switching output FET)

SERVICE MODE

* Use the service remote control unit.
* Turn the power on. (Use main power on the TV unit.)
* Press [SLEEP] button on the service remote control unit. The following screen appears.

To cancel the service mode, press [TV POWER] button on the remote control.

HOW TO MAKE A SERVICE REMOTE CONTROL FROM  normal remote control unit. (Part No. N0105UD or N0127UD) 

* Remove 3 Screws from the back lid.

* Add J1 (Jumper Wire) to the remote control CBA

FLICKER ADJUSTMENT

This adjustment is required when repairing T-CON CBA.
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 become the following [See the bottom picture]

Turn the VR1 on the LCD Module so that flash stops.

HOW TO INITILAIZE

1 To turn the power on, press [POWER] button on the normal remote control unit or the unit.
2 Use the service remote control unit

3 To enter the service mode, press [SLEEP] button on the service remote control unit.
 To cancel the service mode, press [TV POWER] button on the remote control.
4 To initialize the LCD television, press [DISPLAY] button on the normal remote control unit.
 “INITIALIZED” (red) appears on the screen.
 After few seconds (completion initialization), the screen is reset.

SMPS (Power) & BACK-LIGHT INVERTER SCHEMATICS

CLICK ON THE PICTURES TO MAGNIFY

MAGNAVOX - SYLVANIA AND EMERSON- 40 INCH LCD TVS - SERVICE MODE AND ADJUSTMENTS – INITIALIZE – SMPS SCHEMATIC (CIRCUIT DIAGRAM)

MAGNAVOX - SYLVANIA and EMERSON- 40 Inch LCD TVs - Service Mode and Adjustments – Initialize – SMPS Schematic (Circuit Diagram)

40” 40MF430B/F7 MAGNAVOX _ 40” 40MF430B/F7 MAGNAVOX _ 40”LC407SS1 SYLVANIA _ 40” LC407SS1 SYLVANIA _ 40” LC407SS1 SYLVANIA _ 40” LC407EM1 EMERSON

Universal Remote control Set-up codes.

MAGNAVOX: 0018 0042 0049 0101 0152 0680

EMERSON: 0004 0042 0049 0065 0101 0113 0119 0145 0152 0166 0191 0214 0215 0225 0324 0378 0421 0456 0460 0604 0611 0654

SYLVANIA:  0392

ICs used in the main power regulator board [SMPS].

MIP2F30MSSCF (Switching) _ LTV817MCF (Opto-Coupler) _ HPA00651DR ( Switching Control) _ 2SK3561 (Switching FET) _ TK5A500 (Switching FET) _ TEA1611T (High-voltage Resonant Control)

SERVICE MODE
* Turn the power on.
* Press [MENU] button to display Setup menu.
* Select “Features”.
* Select “Current Software Info”.
* Press [0] [4] [2] [5] [7] [4] & [Info] buttons on the remote control unit in this order. The following screen appears.

PURITY CHECK MODE

This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
> Enter the Service mode.
> Each time pressing [7] button on the remote control unit, the display changes as follows.

WHITE BALANCE ADJUSTMENT

The White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA 

Purpose: To mix red, green and blue beams correctly for pure white.
Symptom of Maladjustment: White becomes bluish or reddish.

> Operate the unit for more than 20 minutes.
> Input the White Raster(70%=70IRE, 40%=40IRE)

> 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 perpendicularly to the LCD Panel surface.
> Enter the Service mode. Press [VOLUME DOWN] button on the remote control unit and select “C/D” mode.

CUT-OFF

* Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
DRIVE
* Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment.

* In each color mode, press [CHANNEL UP/DOWN] buttons to adjust the values of color.
Adjust Cutoff and Drive so that the color temperature becomes 12000°K (x= 0.272 / y=0.278 ±0.005).
To cancel or to exit from the White Balance Adjustment, press [PREV CH] button.

HOW TO INITIALIZE THE LCD TV

The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.  To put the program back at the factory-default, initialize the LCD TV using the following procedure.
* Turn the power on.
* Enter the service mode. To cancel the service mode, press [POWER] button on the remote control unit.
* Press [INFO] button on the remote control unit to initialize the LCD television.
INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.

POWER SUPPLY [SMPS] SCHEMATIC (Circuit Diagram)

  Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.  If Main Fuse (F1601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.  Otherwise it may cause some components in the power supply circuit to fail.

CLICK ON THE PICTURES TO ZOOM IN