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 27 March 2019

SHARP 21K-FD5RU _ SERVICE MODE _ ADJUSTMENTS

SHARP 21K-FD5RU _ SERVICE MODE _ ADJUSTMENTS





TO ENTER SERVICE MODE
This model's setting is adjusted in two different ways: through the I2C bus control and in the conventional analog manner. The adjustments via the I2C bus control include preset-only items and variable data.
CAUTION:  MAKE SURE TV SET IN "NORMAL CONDITION" BEFORE SWITCH TO SERVICE MODE FOR ADJUSTMENT.

SETTING THE SERVICE MODE BY THE MICROPROCESSOR
  • Press SERVICE key on the remote controller to set the TV set to SERVICE mode position, and the microprocessor is in input mode. (Adjustment through the I2C bus control).
  • Press the MENU key on the remote controller to get ready to select the mode. (Adjustment mode, Setting mode, Check mode and Option mode) one by one.
  • Press the CH DOWN / UP key on the remote controller to select the item in Adjustment mode, Setting mode or Option mode.
  • Using the VOLUME UP / DOWN key on the remote controller, the data can be modified. Please wait approximately 200 msec for data storage in EEPROM before select to another mode.
  • In Check mode the data cannot be changed.
  • Press the SERVICE key again, it will switch to the NORMAL mode position, and the microprocessor is out of the SERVICE mode.
FACTORY PRESETTING
  • Power ON the TV set, press the SERVICE key on the remote controller, then press both the CH UP and VOL UP button on the set simultaneously for 5 seconds.  Initial values are automatically preset, only when a new EEPROM is used.
  • Make sure the data need modification or not (Initial data).

Precaution: If haven’t done this initialization, it may possibly generate excessive Beam current.

While SERVICE mode ON, EEPROM DATA will switch to the service data. Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA.

Set the MCL according to the specific models.
MCL1 : 21K-FD5RU
MCL2 :
MCL3 :
MCL4 :

After set the MCL, set the INITIAL SETTING for each models.
INITIAL 1 : For China ( All Channel Sound System are set to D/K )
INITIAL 2 : For Hong Kong ( All Channel Sound System are set to I )
INITIAL 3 : For Singapore, Africa and Australia ( All Channel Sound System are set to B/G )
INITIAL 4 : For Middle-East ( All Channel Sound System are set to B/G )
INITIAL 5: For Russia (All Channel Sound System are set to D/K)

AFTER INITIALIZED THE EEPROM (REFER TO FACTORY PRESETTING), READ DATA FROM EEPROM ADDRESS 00H ~ 03H,AND COMPARE TO THE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM.

Address
Data
00H
7BH
01H
75H
02H
03H
78H
74H

There are five stages of service mode data.
First stage data from V00~V31 (Adjustment Mode).
To go into second stage of service mode data, press MENU key.Second stage data from F01~F298 (Setting Mode).
To go into third stage of service mode data, press MENU key. Third stage data is Pixel mode setting.
To go into fourth stage of service mode data, press MENU key.Fourth stage data is Check Mode.
To go into fifth stage of service mode data, press MENU key.Fifth stage data from O01~O29 (Option Mode).

HOTEL MODE
When change service data  (01) to (1), Hotel Mode is ON.
When Hotel Mode is ON:
  • Max volume data is determined by option setting HTL-VOL (O03)
  • Channel position after POWER ON is determined by option setting HOTEL-POS (O02) (if option setting HOTEL-POS is not set, processing is according to last position data).
  • User data updates of EEPROM regarding the video and audio control are not allowed.
  • Preset mode is disabling.
  • CH SETTING menu is not available.
Posted By: FRANK at 04:48
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