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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Wednesday, 20 March 2019

PANASONIC PLASMA - TH42PA60L - SERVICE MODE FUNCTION - OPTIONS - ADJUSTMENTS

PANASONIC PLASMA - TH42PA60L - SERVICE MODE FUNCTION - OPTIONS - ADJUSTMENTS



SERVICE MODE
MPU controls the functions switching for each IICs through IIC bus in this chassis.
The following setting and adjustment can be adjusted by remote control in Service Mode.
SERVICE MODE-1
  • In sound menu, set BASS to MAXIMUM, and set TREBLE to MINIMUM.
  • Set the Volume to minimum, and set the off timer.
  • Simultaneously press Recall button on remote control and DOWN button on the TV set.
SERVICE MODE-2
  • Set the channel to CH99.
  • Select the EQ 12kHz.
  • Press Mute button on remote control and DOWN button on the TV set.
  • To exit to Service mode, press EXIT or Power button on remote control.
OPTION DESCRIPTION
PAL-WHITE BALANCE ADJUSTMENT
  1.  Display the white balance pattern.
  2. Check that the color balance is “cool”.
  3. Enter the <Service1> mode.
  4. Select “G-CUTOFF” item, using the color-key “Red” or “Green”, and set to “128”, using the color-key “Yellow” or “Blue”. Also, “B-CUTOFF” and “R-CUTOFF” set to “128”.
  5. Set “G-DRIVE” at “224”.
  6. Touch the signal receiver of color analyzer to the highlight window’s center, and adjust B drive and R drive so x, y become the “Color balance Cool”.
  7. Set “ALL-DRIVE” to “252”.
  8. Set color balance to “Normal”.
  9. Fix G cutoff , B cutoff and R cutoff at “128”.
  10. Fix G drive at “224”.
  11. Adjust B drive and R drive so the highlight window’s x, y become the “Color balance “Normal”.
  12. Set “ALL-DRIVE” to “252”.
  13. Set color balance to “Warm”.
  14. Set G cutoff, B cutoff and R cutoff to “128”.
  15. Set G drive to “224”.
  16. Adjust B drive and R drive so the highlight window’s x, y become the “Color balance Warm”.
  17. Set “ALL-DRIVE” to “252”.
HD-WHITE BALANCE ADJUSTMENT
  1. Display the white balance pattern.
  2. Check that the color balance is “cool”.
  3. Enter the <Service1> mode.
  4. Select “G-CUTOFF” item, using the color-key “Red” or “Green”, and set to “128”, using the color-key “Yellow” or “Blue”.  Also, “B-CUTOFF” and “R-CUTOFF” set to “128”.
  5. Set “G-DRIVE” at “224”.
  6. Touch the signal receiver of color analyzer to the highlight window’s center, and adjust B drive and R drive so x, y become the “Color balance Cool” in the below table.
  7. Set “ALL-DRIVE” to “252”.
  8. Set color balance to “Normal”.
  9. Fix G cutoff, B cutoff and R cutoff at “128”.
  10. Fix G drive at “224”.
  11. Adjust B drive and R drive so the highlight window’s x, y become the “Color balance “Normal” in the below table.
  12. Set “ALL-DRIVE” to “252”.
  13. Set color balance to “Warm”.
  14. Set G cutoff, B cutoff and R cutoff to “128”.
  15. Set G drive to “224”.
  16. Adjust B drive and R drive so the highlight window’s x, y become the “Color balance Warm” shown in the below table.
  17. Set “ALL-DRIVE” to “252”.
SUB-BRIGHT ADJUSTMENT
  • Display the 10 step gray-scale pattern for adjusting sub-bright from video input.
  • Use "Sub-Bright" in the <Sevice1> mode to adjust so the 6th section shows up and the 7th fades away.
Sub-Bright data addresses
Sub-Bright (upper) A0-0116
Sub-Bright (lower) A0-0117
ABL ADJUSTMENT
  • Connect the set’s AC power to the wattmeter.
  • Input the signal (top half: color bar, Bottom half :Horizontal 10steps bar).
  • Select the “PWRCTL” item in the <Service1> mode.
  • Adjust PWRCTL so the set’s power consumption is 289 (+5/-10)W
  • The initial data are
Data address : A0-0102
Default data : 0×00
The power and data are in reverse relationship. Data is displayed by 2’C. (Lower the data to raise the power.)
Raising direction (▲): 0 à255, 254, 253.....
Lowering direction (▼):0 à1, 2, 3.....
There is a possibility that the adjustment value can do two places, adjust it in that case, that the value of PWRCTL is large.
SUB-CONTRAST ADJUSTMENT
Adjustment AV system
  • Receive AV1 (PAL-M or NTSC 100% Full White or Split Color bar shown as below).
  • Go into service mode, choose Sub-Contrast, and it checks that data value is 512.  (It checks that an initial value is a default)
  • The color key yellow button of remote control is pushed
  • The OSD character of sub-contrast becomes red. (Inside under automatic adjustment)
  • The OSD character of sub-contrast returns to white.
  • End.
Adjustment RF system
  • Receive a RF. (PAL-M or NTSC 100% Full White or Split Colour bar shown as below).
  • Go into service mode, choose Sub-Contrast, and it checks that data value is 512. (It checks that an initial value is a default)
  • The color key yellow button of remote control is pushed.
  • The OSD character of sub-contrast becomes red. (Inside under automatic adjustment)
  • The OSD character of sub-contrast returns to white.
  • End.
Adjustment HD system
  • Receive Component:  (1080i/ 60Hz or 1080i/ 50Hz, 100% Full White or Split color bar as shown below).
  • Go into service mode, choose Sub-Contrast, and it checks that data value is 384. (It checks that an initial value is a default)
  • The color key yellow button of remote control is pushed.
  • The OSD character of sub-contrast becomes red. (Inside under automatic adjustment)
  • The OSD character of sub-contrast returns to white.
  • End.
Posted By: FRANK at 03:29
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