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 !

Saturday 14 December 2019

SANYO CE20LM5 UK6-A COLOR MONITOR-HOW TO ENTER THE SERVICE MODE, ADJUSTMENT DETAILS

CE20LM5 UK6-A Sanyo Color Monitor-How to enter the service mode, adjustment details



Television system: System I;  Color system: PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Service Menu
With the set turned ON, press the following sequence of buttons on the remote control:- [MENU, 3, 6, 0, 9]
The main service menu will be displayed.
Model Option:
B/S [Betting Shop]:  For models fitted with SCART and TUNER
CCTV [Closed Circuit TV]: For models fitted with BNC IN/OUT
 Changing the model option will automatically alter some of the settings to suit
the requirements of the application.
Also some menu's & options will not be accessible in the CCTV mode
Hotel Menu
Hotel mode allows the owner to restrict the functionality of the set so that the user may not tamper with settings such as channel tuning.
Volume max' allows the owner to set a limit to the maximum sound output to prevent noise disturbance.
To enter the Hotel Menu press & hold the GREEN button on the remote for about 5 seconds,
the Hotel menu will appear at the bottom of the screen.
Turn ON to disable RF channel tuning facility.
set value between 0 and 100 to limit the sound output available from speaker set the desired input or channel that will appear at switch on.
Use P+ / P- to select item and Vol+ / Vol- to change data.
Option Menu
This menu is used to enable or disable certain functions availible in the bios.
To enter the Option menu press and hold the GREEN button on the remote for about 5 secs, first the HOTEL menu will appear. Now press and hold GREEN for a further 5 secs, now the OPTION menu
will appear. Only the highlighted items may be accessed by the user.
Use P+ / P- on the remote to highlight the desired item, then use Vol+ / Vol-- to change the state.
Other Menu
This menu contains some items that should not normally require adjustment.
Use P+ / P- to select item & Vol+ / Vol-to change value.
ADC Calibration
The ADC ADJ menu is accessible from the main service menu.
ADC calibration is performed automatically by pressing Vol + key whilst the ADC menu is displayed.
A test signal of RGB colour bars must be applied to the SCART input for this adjustment to be performed. If the result is successful, OK will be displayed at the bottom of the OSD.
It is not possible to manually adjust these values.
Press Vol +to begin auto Calibration.
This adjustment is not required for the CCTV model.
Color Temperature
The Color Temperature menu is accessible from the main service menu and is used to adjust the pictures' white balance.
Connect a 100% white test signal to either SCART or Aerial input and set picture mode to STANDARD
Enter the service mode & select Color Temperature option.
Keeping one color constant, adjust R, G, B Gain value to achieve a pure white image.
If a suitable color analyzer is available adjust the co-ordinates to X= 0.290, Y= 0.290 (+/- 0.01).
If the Grey scale suffers from a predominant tint use the R, G, B Offset adjustment to neutralize, in this case the white level adjustment should be re-checked.
Use P+ / P- to select item and Vol+ / Vol- to change value.
Picture Mode
The predetermined settings for the fixed picture modes can be adjusted using this Menu.
Select the PIC Mode desired to be changed using P+ / P- and Vol+ / Vol-change the value as required.
Source: SCART
PIC Mode: Standard
Contrast 42
Brightness 48
Color 45
Sharpness 42
Text Brightness
The three predetermined levels set for Teletext brightness control can be adjusted in this menu.
Use P+ / P- to select item & Vol+ / Vol-to change value.
MAX 63
MID 42
MIN 21
Factory Reset
In certain circumstances it might be useful to restore the memory to the default conditions
preset within the system bios.
To do this enter the main factory menu and select the "Factory Reset" option.
Press vol+ to proceed with the initialization.
This reset does not affect the ADC calibration or the White balance adjustment settings,
nor does it clear the stored RF channels.
OPTIONS & SETTINGS
The table below shows the correct factory settings for this model.
Some of these items may need to be restored if a ‘Factory Reset’ is performed.