REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday 24 November 2020

SAMSUNG LE27S71B TFT LCD TV SERVICE MODE ADJUSTMENTS, WHITE BALANCE SERVICE ADJUSTMENT, FIRMWARE UPDATE PROCEDURE

 FOR Models: LE32S71B, LE37S71B, LE37S61B, LE40S71B, LE40S61B,   Chassis: GSM27SE, GSM32SE, GSM37SE, GSM37HEU, GSM40SE And GSM40SEU

Entering Factory Mode

To enter "Service Mode" Press the remote -control keys in this sequence:

- If you do not have Factory remote – control.

POWER OFF > INFO > MENU > MUTE > POWER ON

If you have Factory remote – control

PICTURE ON > DISPLAY > FACTORY

The buttons are active in the service mode.

Remote - Control Key: Power, Arrow Up, Arrow Down, Arrow Left, Arrow Right, Menu, Enter, Number Key (0~9)

Function - Control Key: Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO (Enter)


Panel Check

Especially for LE26, 32R7**, you have to check Panel Maker Because of different adjustments as follows.

First of all, check the label rating.

Panel BOM (Bill of material): BN07-00289A

Connector between Panel and Power Unit

: BN39-00603M (300mm)

Option Byte

1. Gamma "AUO"

2. Panel Option "AUO"

If Panel Mark is "S" or not printed. Set the factory mode indicating as follows.

Panel BOM (Bill of material) : BN07-00247A

Connector between Panel and Power Unit

: BN39-00603M (300mm)

 Option Byte

1. Gamma "AMLCD"

2. Panel Option "AMLCD_INT"

If Panel Mark is "C”, Set the Factory mode indicating as follows.

Panel BOM (Bill of Material) : BN07-00207A

Connector between Panel and Power Unit: BN39-00659A (200mm)

 Option Byte

1. Gamma “CMO”

2. Panel Option “CMO”

Others are same shown below.

Factory Data

1. Calibration

2. Option Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. I2C Check

10. W/B MOVIE

11. Checksum

12. Reset

13. Spread Spectrum

T-MILMPEU-1006 (Main Micom Ver)

T-MILMPEUS-1002 (Sub Micom Ver)

Month - Day - Year - Hour - Min. - Sec.

Calibration

1) AV Calibration

2) DTV Calibration

3) PC Calibration.

Alignments and Adjustments

How to Update Flash ROM

1. Install the Flash Downloader

Connect Set (Service Jack) and Jig Cable to execute Program Update.

2. Flash Downloader program update

-Before turning on the set, Click "connect “which is under of OSD Screen.

-Turn on the Set.

White Balance – Calibration

If picture color is wrong, do calibration first.

Equipment: CA210, Patten: chess pattern

Execute calibration in Factory Mode

Source AV: PAL composite, Component: 1280*720-60Hz

PC: 1024*768-60Hz.

Sub brightness and R-G-B Offset controls low light region

Sub contrast and R-G-B Gain controls high light region

Source AV : PAL composite, Component : 1280*720-60Hz

HDMI [DVI] : 1280*720-60Hz

[Test Pattern: MSPG-945 Series Pattern #16]

Color temperature

1500K +or -500, -6 ~-20 MPCD

Color coordinate

H-L : 267-263 +or - 2 35.0 Ft + or - 2.0Ft

L-L : 270-260 + or - 3 1.5 Ft + or - 0.2Ft

Toshiba Patten

Conditions for Measurement

1. On the basis of Toshiba ABL pattern: High Light level (57 IRE)

- INPUT SIGNAL GENERATOR: MSPG-925LTH

* Mode NO 2: 744X484@60 Hz

NO 6: 1280X720@60 Hz

NO 21: 1024X768@60 Hz

* Pattern NO 36: 16 Color Pattern

NO 16: Toshiba ABL Pattern

2. Optical measuring device: CA210 (FL)

Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46M51B.

Method of Adjustment

1. Adjust the white balance of AV, Component and DVI Modes. (AV > Component)

a) Set the input to the mode in which the adjustment will be made (RF > DTV > PC > DVI).

* Input signal - VIDEO Mode: Model #2 (744*484 Mode), Pattern #16

- DTV, DVI Mode: Model #6 (1280*720 Mode), Pattern #16

- HDMI Mode: Model #6(1280*720 Mode), Pattern #16.

b) Enter factory color control, confirm the data.

c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode) [Given above]

- Adjust sub - Brightness to set the 'Y' value.

- Adjust red offset ('x') and blue offset ('y') to the color coordinates.

d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.

[Do not adjust the green gain and sub-contrast (Y) data.]

Adjust the high light. (Refer to table 1, 2 in adjustment position by mode) [Given above]

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.

* Do not adjust the green gain and sub-contrast (Y) data.


Posted By: FRANK at 04:27
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