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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Monday 11 March 2019

HITACHI 26LD9000TA -32LD9000TA SERVICE MODE

HITACHI 26LD9000TA -32LD9000TA SERVICE MODE

Adjustment
26LD9000TA/ 32LD9000TA VGA Color Temperature Adjustment Procedure
Preparation
1. Set the signal generator (ASTRO VG859A or equivalent) to RGB, 1024*768, 60HZ, Level:0.7V, all white pattern..
2. Turn on the set and select RGB source,perform pre-heat run more than 30 min. with Full white pattern.
3. Prepare Minolta CA210,and calibration before adjustment.
4. Press Menu key  , Press  ok
to select [Picture] > [Reset] >  Reset > ok.
5. Press [Menu] key exit OSD.
Entering into factory Mode: In VGA mode, press “Red” key, next press “Green” key, next press “Return” key in remote control to enter into factory mode.
Source Calibration (RGB)
1. Set the signal generator to RGB, Color bar pattern (level: 0.7V, color order from left side: white, yellow, cyan, green,magenta, red, bule, black, width ratio: 12.5% for each color),
2. Entering into factory Mode: Press up or down key of remote control to select “Source Calibration”, Press OK
 key to enter the item.
26LD9000TA
1. Set the signal generator to RGB, 1024*768, 60HZ, Level:0.56V(80%). Full white pattern.
2. Press up or down key of remote control to select “Cool”, Press
 OK  key to enter the item. R, G, B drive values are set for COOL, NORMAL, and WARM independently.
For Red drive, keep initial value (130).
Change Green, or Blue drive as follows;
- Press “Up” or “Down” key to select the item “R”, “G”, or “B”, and press  OK key to enter.
- Press “Left” or “Right” key to set the value.
- Press  OK  key to exit.
3.Select  Cool 15000
(1) Cool
15000 K spec.:
x=0.266±0.001
y=0.270±0.001
(2) If the x and y value are larger than specification, Decrease Green drive from default value. Increase Blue drive from default value.
(3) If the x or y or both x and y value is/are smaller than specification. Decrease Blue drive from default value
(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.
(4)-1 If x value is higher than spec
Increase Green drive from default value.
Increase Blue drive from default value.
(4)-2 If y value is higher than spec,
Decrease Green drive from default value
4.Select [Normal 9300]
Normal
9300 K spec.:
x=0.285±0.001
y=0.293±0.001
Adjust G drive (GREEN) or B drive (BLUE) to set x and y above.
5.Select [WARM]
(1) WARM
6500 K spec.:
x=0.314±0.001
y=0.327±0.001
Adjust G drive (GREEN) or B drive (BLUE) to set x and y above.
6. Exit Factory Mode:
After finish adjusting color temperature,press [MENU] to exit factory mode.
32LD9000TA
1. Set the signal generator to RGB, 1024*768, 60HZ, Level:0.56V(80%). Full white pattern.
2. Press up or down key of remote control to select “Cool”, Press
 OK  key to enter the item. R, G, B drive values are set for COOL, NORMAL, and WARM independently.
For Red drive, keep initial value (140).
Change Green, or Blue drive as follows;
- Press “Up” or “Down” key to select the item “R”, “G”, or “B”, and press [OK] key to enter.
- Press “Left” or “Right” key to set the value.
- Press [OK] key to exit.
3.Select
 Cool 15000
(1) Cool
15000 K spec.:
x=0.266±0.001
y=0.270±0.001
(2) If the x and y value are larger than specification, Decrease Green drive from default value. Increase Blue drive from default value.
(3) If the x or y or both x and y value is/are smaller than specification. Decrease Blue drive from default value
(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.
(4)-1 If x value is higher than spec
Increase Green drive from default value.
Increase Blue drive from default value.
(4)-2 If y value is higher than spec,
Decrease Green drive from default value
4.Select [Normal 9300]
Normal
9300 K spec.
x=0.285±0.001
y=0.293±0.001
Adjust G drive (GREEN) or B drive (BLUE) to set x and y above.
5.Select [WARM]
(1) WARM
6500 K spec.:
x=0.314±0.001
y=0.327±0.001
Adjust G drive (GREEN) or B drive (BLUE) to set x and y above.
6. Exit Factory Mode:
After finish adjusting color temperature,press [MENU] to exit factory mode