Samsung UE55F6670SB LCD TV SMPS schematic – BN44-00622C

Using ICs SEM3050, STR2A153D, SLC2013M(MAP3321)

SLC195EM8 Emerson 19 inch color LCD television-NTSC-ATSC- US Model - how to enter the service mode, service adjustments, full schematic

Electrical adjustments.

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 you do not have proper equipment is available.

To do the adjustments, you need a service remote control.  There is no service remote control, to buy anywhere. Service remote control can be prepared from the supplied user remote control.

See how to prepare a service remote control, from the user remote control.

How to make the service remote control unit.

Cut the marked portion shown below illustration, of your user remote control. There is a service button underneath.  You can get access to Service Button.

Pressing it, can see the service mode screen.

Be carefull to do adjustments in service mode.

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 as shown in fig.

Purity check mode. Up

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.

Auto calibration [component]
Purpose: to bring the color adjustment of each component into standard alignment.
Symptom of maladjustment: if this adjustment is incorrect, component signals do not reproduce the corresponding color.
1. Input 1080i 100% color bar signal.
2. Enter the service mode.
3. To enter the auto calibration adjustment mode, press [6] button on service the remote control unit.
4. To start auto adjustment, press [1] button on the service remote control unit.
- In the auto adjustment mode, “please wait” appears on the screen.
- Upon completion, “ok” appears on the screen.

Auto calibration [DTV]
purpose: to bring the color adjustment of DTV into standard alignment.
Symptom of maladjustment: if this adjustment is incorrect, DTV signals do not reproduce the corresponding color.
1. Enter the service mode.
2. To enter the auto calibration adjustment mode, press [6] button on the service remote control unit.
3. To start auto adjustment, press [2] button on the service remote control unit.
- In the auto adjustment mode, “please wait” appears on the screen.
- Upon completion, “ok” appears on the screen.

Auto calibration [PC]
purpose: to bring the color adjustment of pc into standard alignment.
Symptom of maladjustment: if this adjustment is incorrect, pc signals do not reproduce the corresponding color.
1. Input XGA 100% white signal.
2. Enter the service mode.
3. To enter the auto calibration adjustment mode, press [6] button on service the remote control unit.
4. To start auto adjustment, press [3] button on the service remote control unit.
- In the auto adjustment mode, “please wait” appears on the screen.
- Upon completion, “ok” appears on the screen.

The following adjustment normally is not attempted in the field. Only when replacing the LCD panel then adjust as a preparation.

White balance adjustment [video]
purpose: to mix red, green and blue beams correctly for pure white.
Symptom of maladjustment: white becomes bluish or reddish.

1. Operate the unit for more than 20 minutes.
2. Input the white purity

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 below.
Note: the optical receptor must be set perpendicularly to the LCD panel surface.

4. Enter the service mode. press [vol. dn] button on the service remote control unit and select “c/d1” mode.

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 [vol.dn] button on the service remote control unit and select “c/d2” 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 [ch.up/dn] buttons to adjust the values of color.
7. Adjust cutoff and drive so that the color temperature becomes 11000k (x= 0.279 / y= 0.272 ±0.005)

White balance adjustment [component / DTV]
purpose: to mix red, green and blue beams correctly for pure white.
Symptom of maladjustment: white becomes bluish or reddish.

1. Operate the unit for more than 20 minutes.

2. Input the white purity. as described above.

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 below.
Note: the optical receptor must be set perpendicularly to the lcd panel surface.
4. Enter the service mode. press [vol.dn] button on the service remote control unit and select “c/d2” 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.  press [6] button to select “db” for blue drive adjustment.
6. in each color mode, press [ch.up/dn] buttons to adjust the values of color.
7. Adjust cutoff and drive so that the color temperature becomes 11000k (x= 0.279 / y= 0.272 ±0.005).

How to initialize the lcd television
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 [display] button on the service remote control unit to initialize the lcd television.
4. "ff" will appear in the upper left of the screen. "ff" color will change to red from white when initializing is complete.

Test equipment required
1. DC voltmeter
2. NTSC pattern generator (color bar w/white window, red color, dot pattern, gray scale, monoscope, multi-burst)
3. Remote control unit
4. Color analyzer.

Schematic [full]

715G4989 - AOC LE 26W154 SMPS Schematic, Philips 22PFL3805H/60 Schematic-715G4142, – Philips 43PUS6503/12-715G9324

AOC LE 26W154 SMPS Schematic 715G4989

Used ICs – LD7576GR (SMPS Control), TK13A65U 13A 650V (FET)

715G4142 - Philips 22PFL3805H/60 Schematic

Used ICs – LD7676GR (SMPSControl), STP10NK70ZFP (FET)

715G9324 – Philips 43PUS6503/12, Philips 43PUS6703/12, Philips 43PUS6753

Used ICs – LD7592 (SMPS Control), TK13A60D (FET), SSC3S927 (B-L Control)

Grundig UMS3000-GLR1100 – schematic - exploded view – wiring diagram PWBs

When removing the Laser pick-up or the Servo PCB, the Laser pickup PCB must be provided with a protective soldered joint before unplugging the connectors to avoid damage to the Laser diodes by static charges.

When inserting the new Laser pick-up (CD drive mechanism) the soldered joint fitted at the factory must be removed after the connectors are plugged in.

Exploded view

Power supply and Power amplifier schematic

Power amplifier and Power supply PWB

CD & Display Section Schematic

CD and Display section PWBs

Radio section PWB

Tape section schematic and PWB

Wiring diagram

Samsung PPM42H3 and Xoceco 6HA0182010 Model PH-50HA31 LCD TV – SMPS schematic

Samsung PPM42H3 SMPS circuit diagram.   

Used ICs - IC8131: STR-A6151, IC8261: L4981A, IC8301: STR-F6267, IC8441: NJM2374A, IC8531, IC8551: STR-G6353, IC8571: STR-A6351, IC8651: H8 / 3694F, Zl: SPF9001

Xoceco 6HA0182010 LCD TV power supply inverter schematic  - Model:PH-50HA31

Used ICs - N5002: MR4000, N5004: NCP1653, N5008: LM393, N5013: TEA1610T, N5014: STR-F6600