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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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday 8 March 2019

HITACHI 42PMA225EZ SERVICE MODE FACTORY RESET AND ADJUSTMENTS

HITACHI 42PMA225EZ SERVICE MODE FACTORY RESET AND ADJUSTMENTS

HITACHI 42PMA225EZ ,    PLASMA DISPLAY 

SERVICE MODE FACTORY RESET AND ADJUSTMENTS 

SERVICE MENU SETTINGS
All system, geometry and white balance alignments are performed in production service mode. Before starting the production mode alignments, make sure that all manual adjustments are done correctly.
SERVICE MODE 
To start production mode alignments enter the MENU by pressing M  button and then press the > I-II button >mute > image size > ve pip respectively. The following menu appears on the screen.
There are 3 submenus in service menu. These are Display, Calibration and Deinterlacer menus. Press LEFT/RIGHT buttons to select a menu title and then UP/DOWN buttons to select a menu item and LEFT/RIGHT or OK buttons to set the menu item to the desired option. To exit the service menu press M button. Entire service menu parameters of Plasma TV are listed below.
Display menu
By pressing “LEFT/RIGHT’’ buttons select the first icon. display menu appears on the screen.
Blank colour
By pressing UP/DOWN button, select blank colour. Press LEFT/RIGHT button to set the blank colour. The options are: black, red, green and blue.
Panel
Displays panel resolution
Power on time
Displays total working time of the set
Backlight on time
Displays total backlight on time of the set. (Not used for plasma displays)
Scart prescale
By pressing UP/DOWN button, select scart prescaler. Press LEFT/RIGHT button to set the scart prescaler. Scart prescale can be adjusted between 0 and 127.
Nicam prescale
By pressing UP/DOWN button, select nicam prescaler. Press LEFT/RIGHT button to set the nicam prescaler. Nicam prescale can be adjusted between 0 and 127.
Fm/am prescale
By pressing UP/DOWN button, select fm/am prescaler. Press LEFT/RIGHT button to set the fm/am prescaler. Fm/am prescale can be adjusted between 0 and 127.
Subwoofer corner
By pressing UP/DOWN button, select subwoofer corner. Press ’LEFT/RIGHT’’ button to set the subwoofer corner. Subwoofer corner can be adjusted between 0 and 7.
Subwoofer level
By pressing UP/DOWN button, select subwoofer level. Press LEFT/RIGHT button to set the subwoofer level. Subwoofer level can be adjusted between 0 and 32.
AGC adjustment
Adjustment for automatic gain control of tuner. By pressing UP/DOWN button, select agc adjustment. Press LEFT/RIGHT button to set the agc adjustment. Agc adjustment can be adjusted between 0 and 31.
Carrier mute
This option is not available for this model
Calibration menu
By pressing LEFT/RIGHT buttons select the second icon. calibration menu appears on the screen.
Colour temp
By pressing UP/DOWN button, select colour temp. Press LEFT/RIGHT button to set the colour temperature. The options are: 5500K, 6500K, 7500K, 9300K and user.
R/G/B
By pressing UP/DOWN button, select Red, Green or Blue. Press RIGHT button to increase the colour temperature. Press LEFT button to decrease the colour temperature. Colour temperature can be adjusted between values 0 and 63.
Video format
By pressing UP/DOWN button, select video format. Press LEFT/RIGHT button to set the video format. The options are: auto, ntsc, pal, secam and ntsc japan.
Colour space
Displays the current colour space used. RGB, YPbPr SMPTE240, YPbPr REC709 and YCbCr REC601.
Test pattern
By pressing UP/DOWN button, select test pattern. Press LEFT/RIGHT button to set the test pattern. The options are: none, solid colour and vert bars.
Colour components
By pressing UP/DOWN button, select colour components. Press LEFT/RIGHT button to set the colour components. The options are: all, red, green and blue.
Solid field level
By pressing UP/DOWN button, select solid field level. Press RIGHT button to increase or LEFT button to decrease the solid field level. Solid field level can be adjusted between 0 and 64.
Adc calibration
Not used for this model.
Factory reset
By pressing UP/DOWN button, select factory reset. Press “OK” button to return to the factory setting values.
Advertisement
When this item is made on, VESTEL advertisement is represented at certain time intervals.
Deinterlacer menu
By pressing UP/DOWN buttons select the third icon. deinterlacer menu appears on the screen.
Blank expansion
By pressing UP/DOWN button, select blank expansion. blank expansion can be set to on or off by pressing LEFT/RIGHT button.
Dcti
Digital colour transition improvement: By pressing UP/DOWN button, select dcti. DCTI can be adjusted between 0 and 255 by pressing LEFT/RIGHT button.
Dlti
Digitial luma transition improvement: By pressing UP/DOWN button, select dlti. DLTI can be adjusted between 0 and 255 by pressing LEFT/RIGHT button.
Luminance peaking
By pressing UP/DOWN button, select luminance peaking. Luminance peaking can be set to on or off by pressing LEFT/RIGHT button.
Film mode
By pressing UP/DOWN button, select film mode. Film mode speed can be set to on or off by pressing LEFT/RIGHT button.
Film mode speed
By pressing UP/DOWN button, select film mode speed. Film mode speed can be set to 0, 1, 2 or 3 by pressing LEFT/RIGHT button.
Vof
video on film. By pressing UP/DOWN button, select vof. VOF can be set to on or off by pressing LEFT/RIGHT button.
Bad cut
By pressing UP/DOWN button, select bad cut. Bad cut can be set to on or off by pressing LEFT/RIGHT button.
Nr threshold
By pressing UP/DOWN button, select nr threshold. Nr threshold can be set to low or high by pressing LEFT/RIGHT button.
Noise reduction
By pressing UP/DOWN button, select noise reduction. Noise reduction can be adjusted between 0 and 255 by pressing LEFT/RIGHT button.
Lai level
By pressing UP/DOWN button, select lai level. Lai level can be set to 0, 1 or 2 by pressing LEFT/RIGHT button.
Sharpness
By pressing UP/DOWN button, select sharpness. Sharpness can be adjusted between 0 and 255 by pressing LEFT/RIGHT button.
Sparkle
By pressing UP/DOWN button, select sparkle. Sparkle can be adjusted between 0 and 255 by pressing LEFT/RIGHT button.
Posted By: FRANK at 05:08
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