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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Monday 25 March 2019

LG 47LB5DF HOW TO ENTER WHITE PATTERN BOARD ADJUSTMENT RF-VIDEO ADJUSTMENT AND MORE

LG 47LB5DF HOW TO ENTER WHITE PATTERN BOARD ADJUSTMENT RF-VIDEO ADJUSTMENT AND MORE



TO ENTER WHITE PATTERN
  • Press the POWER ON KEY on the adjustment R/C.
  • Or press the ADJ KEY on the adjustment R/C to enter Ez – Adjust And select 10.
  • Test Pattern using the CH + / - KEY and then select White using the arrow keys to display the 100% FULL WHITE PATTERN.
  • In this mode, you can heat run the set without separate signal generator.
Caution:  When you keep the still screen on for more than 20 minutes (Especially for internal Digital pattern (13 CH), Cross Hatch Pattern (09CH) with higher black/white contrast), be careful not to create residual image on the black level part.
BOARD ADJUSTMENT
  • Adjust 480i Comp1
  • Adjust 1080p Comp1/RGB
  • Adjust RF and Video
Adjustment method using RS-232C
Adjust the 3 board adjustment items of 3 using the RS-232C according to the "4.1.2 Adjustment order". [Necessary details before adjustment]
  1. ad 00 00 Enter ADC adjustment mode.
  2. kb 00 01 Switch RF input (Input is not switched)
  3. ad 00 10 Adjust RF and Video (Input is switched and adjusted)
  4. kb 00 04 Switch component1 input (Input is not switched)
  5. ad 00 10 Adjust 480i Comp1 (Input is switched and adjusted)
  6. kb 00 06 Switch RGB-DTV input (Actual input is not switched)
  7. ad 00 10 Adjust 1080p Comp1/RGB (Input is switched and adjusted)
  8. ad 00 90 Complete adjustment
AUTO ADJUSTMENT OF RF & VIDEO
  • Connect the Video Signal Generator (Master) to TV AV input terminal with AV output.
  • At this time, when you enter the input pattern as Model :  201(NTSC-M) , Pattern : 33(100% color Bar)
  • When the video is showing black patterns from the left, it cannot be adjusted.
  • In this case, first press the Rev button of Video Signal Generator (Master), to generate the white pattern to be displayed from the left.
  • Because the above pattern can differ by the model and pattern for each device, you must check the pattern first.
  • When the receiving signal is confirmed after inputting the internal signal, press the ADJ KEY on the adjustment R/C to enter ‘EZ-ADJUST’. Select ‘5.Adjust RF and Video’ and press the right key (G) to enter the adjustment mode.
  • When you enter the adjustment mode, the video is automatically set to TV 2CH and the following window is displayed.
  • When the adjustment is completed, a message saying ‘RF Configuration Success’ is displayed. If the adjustment has failed, a message saying ‘RF Configuration Error’ is displayed.
  • When the automatic adjustment of RF signal is completed, it is automatically switched to the Video Mode as shown in the above picture, and automatic adjustment for Video Mode is done. When the automatic adjustment is completed, a message saying ‘Video Configuration Success’ is displayed. If the adjustment has failed, a message saying ‘Video Configuration Error’ is displayed.
WHITE BALANCE ADJUSTMENT
  • Basically it uses the internal pattern but when internal pattern is not possible, you can select HDMI input for adjustment. Through the option at the most bottom part of the Ez Adjust Menu 7.White Balance menu, you can select NONE, INNER and HDMI, and the default is set to INNER. When the adjustment cannot be done with the internal pattern, you can select HDMI input for adjustment.
  • For manual adjustment, press the ADJ KEY of the adjustment R/C to enter Ez Adjust 7.White-Balance, and the pattern is automatically displayed. (When you set the Option to INNER, the default is always set to INNER)
  1. Connect the set according to the internal pattern or HDMI input.
  2. Set the Baud Rate of RS-232C to 115200. It is set to 115200as default.
  3. Connect the RS-232C Cable to the set.
  4. Connect the HDMI Cable to the set. (Limited to the set with HDMI option)
  5. Select and adjust the model applicable to LA73A chassis from the adjuster
Caution:   For automatic adjustment, RS-232C Command and Chassis are commonly applied
White Balance adjustment (For automatic adjustment)
  1. Execute Power Only Key of the adjustment R/C to execute automatic adjustment. Set the Baud Rate to 115200.
  2. Always start adjustment with "wb 00 00" and end adjustment with "wb 00 ff"
  3. Adjust the offset if necessary.
WHITE BALANCE ADJUSTMENT [MANUAL]
  1. Press the ADJ of adjustment R/C to enter ‘EZ-ADJUST’.
  2. Select 10.TEST PATTERN using the CH + / - KEY and press the Enter KEY to execute a heat run for more than 30 minutes.
  3. Execute a Zero Calibration for CA-210 and put it at distance of less than 10Cm from the LCD module surface center during the adjustment.
  4. Press the ADJ of adjustment R/C, select ‘7.White-Balance’ of ‘Ez – Adjust’ and enter the adjustment mode using the right key (G).  (When you press the [Cf] button, the screen enters the full white internal pattern.)
The adjustment is executed in 3 different white balance of COOL, MEDIUM and WARM.
  • When the white balance is Cool, Fix B Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use R Gain / G Gain to adjust the High Light.
  • When the white balance is Medium, Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G Gain / B Gain to adjust the High Light.
  • When the white balance is Warm Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G Gain / B Gain to adjust High Light.
  • Use the +, - key for adjustment.
  • When the adjustment is completed, press the OK (Á KEY) button to move to the Ez –Adjust screen.
  • Press the ADJ KEY to exit the adjustment mode.
480i COMP1, 1080p COMP1/RGB ADJUSTMENTS
ADC 480i component1 adjustment
  • Check Component1 connected condition from the using device. (MSPG-925FA : (model :209 , pattern :65 )
  • Input Component 100% Horizontal Color Bar Pattern (HozTV31Bar) of 480i Mode that is supported, select the input to Component1 and select the video to ‘Normal’.
  • Wait for more than 1 second after receiving the signal and then press the ADJ KEY on the adjustment R/C to enter ‘Ez – Adjust’. Select ‘3. ADC 480i Comp1’ and press the Enter KEY to make the automatic adjustment.
  • When the adjustment is normally completed, a message saying "ADC Component1 Success" is displayed.
  • When the adjustment is not normally completed, a message saying ‘ADC Component1 480i Fail’ is displayed. When the component is not connected, a message saying ‘Component1 Not Connected’, when the input format is not 480i, a message saying ‘Not Valid Format’ and when the input signal is not coming out, a message saying ‘Check Signal Status’ is displayed for 1 second.
ADC 1080P Component1/RGB adjustment
Check the Component1, RGB connected condition from the using device.   (MSPG-925FA  => model :225 , pattern :65 )
  1.  Input Component 100% Horizontal Color Bar Pattern (HozTV31Bar) of 480i Mode that is supported, select the input to Component1 and select the video to ‘Normal’.
  2. Wait for more than 1 second after receiving the signal and then press the ADJ KEY on the adjustment R/C to enter ‘Ez – Adjust’. Select ‘4. ADC 1080P Comp1/RGB’ and press the Enter KEY to make the automatic adjustment for component 1 first.
  3. When the adjustment is normally completed, a message saying "ADC Component1 Success" is displayed, and when the adjustment is not normally completed, a message saying ‘ADC Component1 1080P Fail’ is displayed.
  4. After the Component1 adjustment is completed, it is automatically switch to RGB-DTV Mode to start RGB adjustment. When the adjustment is normally completed, a message saying "ADC RGB 1080P Success" is displayed.
  5. When the adjustment is not normally completed, make the adjustment again after checking the pattern or adjustment condition. The error message is as E.
  6. When the adjustment is completed, press the ADJ KEY to exit.
Posted By: FRANK at 03:10
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