Chapter 3. Adjustment Precautions Adjustment Precautions; Service Manual - Sharp 21K-FD5RU Service Manual

21K-FD5RU
CHAPTER 3.
E Market 21K-FD5RU

Service Manual

21K-FD5RU TV
ADJUSTMENT PRECAUTIONS
[1] ADJUSTMENT PRECAUTIONS
This model's setting are 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.
MAKE SURE TV SET IN "NORMAL CONDITION" BEFORE SWITCH TO SERVICE MODE FOR ADJUSTMENT.
CAUTION:
Setting the service mode by the microprocessor.
1.
Press SERVICE key on the remote controller to set the TV set to SERVICE mode position, and the microprocessor is in
1)
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
2)
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
3)
mode.
Using the VOLUME UP / DOWN key on the remote controller, the data can be modified. Please wait approximately 200
4)
msec for data storage in EEPROM before select to another mode.
In Check mode the data cannot be changed.
5)
Press the SERVICE key again, it will switch to the NORMAL mode position, and the microprocessor is out of the SERVICE
6)
mode.
Factory Presetting.
2.
Power ON the TV set, press the SERVICE key on the remote controller, then press both the CH UP and VOL UP button on
1)
the set simultaniously for 5 secs.
Initial values are automatically preset, only when a new EEPROM is used.
The initial data are preset as listed in page 3.7 ~ 3.16.
2)
Make sure the data need modification or not (Initial data).
3)
Precaution: If haven't done this initialization, it may possibly generate excessive Beam current.
For reference please check with memory map RH-IXB584WJXX (See attachment).
3.
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