LC-20B6E (serv.man6). Adjusting procedure of each section - Sharp TV Service Manual (repair manual). Page 2

•It will return, if a direct tuning “12” key is pushed with a right-hand side value.
•If a cursor top / lower key, a menu key, etc. are pushed, it will move to an another item.

Initialize the product when IC2005 (E

2

PROM) or IC2001 (Microprocessor) has been replaced

4.1. Bring pins (81) and (82) of IC2001 (microprocessor) to GND, and then turn on the power.
4.2. Check the model (A665).  *Note: The model number cannot be selected.
4.3. Select the screen size (inches) (20).  *Note: The inch size cannot be changed.

(

E

2

PROM write-in data for microcomputers)

5.1. Transmitting data classified by model: Nothing.
5.2. ROM COLLECTION: Nothing.

6. Transmitting data of QS parameter (Write-in data for QS)

6.1. Transmitting data: Nothing.

7.1.1. D3 input (1080i)
• D3  75% color bar signal input
Use apparatus: LEADER LT446 / 447 / 448
Signal: COLOR BAR 75%
Setting Value LT446:

01:1920 x 1080 / 60i

LT447/448:  02:  1080i/59.94(30SF)

H:33.72kHz   V:29.97Hz

• Turn ON “AUTO GAIN-OFFSET1” of the page 7 of the adjustment process menu.

7.1.2 PC input (VGA)
• VGA 75% color bar signal input
Use apparatus: LEADER LT446 / 447 / 448
Signal: COLOR BAR 75%
Setting value LT446: 07: 640 x 480 / 60P          LT447/448:    26:    VGA    (640x480)

       H: 31.47kHz   V:59.94Hz

• Turn ON “AUTO GAIN-OFFSET2” of the page 8 of the adjustment process menu.

• Display a flicker test pattern as an adjustment process.
  Remote control direct key: Liquid crystal code No.19 (13hex)
• Adjust “COM BIAS” of page 2 of the adjustment process menu so that a flicker becomes the minimum, using VOL
  + and VOL - keys.

7.3. Adjusting the TAMP
• Receive the upper left of 75% white half color bar signal.
• If the reading of “YDATA” on Page 2 of the adjust process is not within the range in the table below, adjust
the “PAL TAMP” setting on the same page to bring the “YDATA” setting in the range below.
*Keep in mind that the setting may vary from model to model.

•Pushing the TAMP direct key finishes the “PAL TAMP” adjustment. Now the setting will be automatically copied to
“SECAM TAMP”. TAMP direct key nº 203 (CBhex).

Model

Setting

   LC-20B6EE/EF/EI/ERU/EK
               157  - 160