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 !

Monday 11 March 2019

HITACHI 42PD380TA SERVICE MODE

HITACHI 42PD380TA SERVICE MODE

HITACHI 42PD380TA 

PLASMA DISPLAY PANEL SERVICE MODE 

SERVICE MODE
This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for more than the standard time in the appropriate condition.

Set
Condition
Set Key
Remocon
Key
Standard
Time
Operations
TV mode
VOL. DOWN
(Minimum)
0
2 sec.
Reset the user setting items (PICTURE, VOLUME, LANGUAGE
and NICAM AUTO/OFF) to the initial state for delivery.
TV mode
VOL. DOWN
(Minimum)
1
2 sec.
Initialization of factory TV data.
NOTE: If you set factory initialization, the memories are reset such as the channel setting, and the POWER ON total hours.
ALL mode
VOL. DOWN
(Minimum)
6
2 sec.
POWER ON total hours are displayed on the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
(CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".


TV mode

VOL. DOWN
(Minimum)


9

2 sec.

Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).

CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0"..
1. Turn on the POWER, and set to the TV mode.
2.Set the VOLUME to minimum.
3.Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
4.After the confirmation of using hours, turn off the power.
 WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings
1.Turn on the POWER, and set to the TV mode.
2.Set the VOLUME to minimum.
3.Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds. ADDRESS and DATA
4.The unit will now have the correct DATA for the new MEMORY IC. ADDRESS is now selected and should "blink". Using the RIGHT/LEFT button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
5. Press ENTER to select DATA. When DATA is selected, it will "blink".
6.Again, step through the DATA using RIGHT/LEFT button until required DATA value has been selected.
7.Pressing ENTER will take you back to ADDRESS for further selection if necessary.
8.Repeat steps 4 to 7 until all data has been checked.
9.When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
10.Turn on the POWER, and set to the TV mode.
11.Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
12. After the finishing of the initializing of shipping, the unit will turn off automatically.
WHITE BALANCE
1,Place the set in Aging Test for more than 30 minutes.
2.Receive the gray scale pattern from the Pattern Generator.
3.Press the INPUT SELECT button on the remote control to set to the AV mode.
4.Using the remote control, set the brightness and contrast to normal position.
5.Activate the adjustment mode display and press the channel button (03) on the remote control to select “R DRIVE”.
6.Press the CH. UP/DOWN button on the remote control to select the “R CUTOFF”, “B.DRIVE” and “B CUTOFF”.
7.Adjust the VOL. UP/DOWN button on the remote control to whiten the R CUTOFF, B.DRIVE and B CUTOFF at each step tone sections equally.
8.Perform the above adjustments 5 and 6 until the white color is looked like a white.
 BRIGHT CENT
1. Receive the monoscope pattern. (RF Input)
2. Set the screen mode to PANORAMIC.
3.Using the remote control, set the brightness and contrast to normal position.
4. Activate the adjustment mode display and . press the channel button (28) on the remote control to select "BRI CENT".
5. Press the VOL. UP/DOWN button on the remote control until the white 2.7% is starting to be visible.
8. Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
7. Press the INPUT SELECT button on the remote control to set to the COMPONENT mode. Then perform the above adjustments 2~5.
8. Press the INPUT SELECT button on the remote control to set to the HDMI mode. Then perform the above adjustments 2~5.
Posted By: FRANK at 12:50
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