akira LCT-20HSST Service Manual Download Page 7

  

   

 

 

 

 

 

 

 

 

                           

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Model No.: LCT-20HSST 
Version: 1.0 

 

   

 
 
 

FACTORY MODE ADJUSTMENT 

 
FACTORY MODE adjustment is a special adjustment, which is controlled by I

2

C BUS. The TV set has 

been set at optimum mode at the factory. Except for special request, such as updating software, replacing 
PANEL, MEMORY, IC etc., it is hoped not to be adjusted after produced. To conduct FACTORY 
MODE's adjustment, please do it according to the following steps: 
 

1)  Press the MUTE button and the number button [2

6

6

0

7

1] on the remote controller to 

enter into factory menu, adjust 

display, cal., stv2248 

or 

other 

menu. You can use navigation 

key to access them.   

2) In 

display 

menu, display the basic characteristic parameter such as panel resolution, mode 

table, power on time, backlight on time, software version number etc. 

3) In 

cal. 

menu, display the basic characteristic parameter such as external comb filter, video 

format, color space, test pattern etc. Except for special need, reset nvram item and right to OK 
set item are hoped not to be adjusted. 

4) 

In 

stv2248 

menu, select the item you want to adjust by pressing the button “ CH+” or “CH-” and 

use the "VOL+" or "VOL-" button to adjust. In this menu, you can adjust the white balance, 
picture modes value, SCART Audio out value and volume middle value. And the contrast value, 
AGC value and the important value vcofine, vcocoa are in the sub menu 

2248 adjust. 

 

5) 

In 

OTHER 

menu, select the item you want to adjust by pressing the button “ CH+”or 

“CH-”such as sharpness adjust, Volume Max and Volume Min value and use the "VOL+" or 
"VOL-" button to adjust

6)  Press "MENU" button on the remote controller to exit the FACTORY MODE.   

 
 
Page 1: Display the different characteristic parameter according to signal source and TV set model. 
 

Item Name 

Default 

Value 

Note 

Panel 

640 x 480 

 

 

Mode 

table 

   

Power 

on 

time 

   

Backlight 

on 

time 

   

Version 

number 

   

 
 
 
 
 
 
 

Summary of Contents for LCT-20HSST

Page 1: ...LCT TV Service Manual...

Page 2: ...2 Model No LCT 20HSST Version 1 0 MODEL LCT 20HSST...

Page 3: ...3 Model No LCT 20HSST Version 1 0 CONTENTS SAFE PRECAUTION 4 BLOCK DIAGRAM 5 MAIN BOARD 6 FACTORY MODE ADJUSTMENT 7 TROUBLESHOOTING 10 HOW TO UPDATE THE SOFTWARE 12 CIRCUIT DIAGRAM 13 PART LIST 28...

Page 4: ...from circuit board 4 Connection wires must be kept away from components with high voltage or high temperature 5 If any fuse in this TV receiver is blown replace it with the FUSE specified in the chass...

Page 5: ...5 Model No LCT 20HSST Version 1 0 BLOCK DIAGRAM...

Page 6: ...6 Model No LCT 20HSST Version 1 0 MAIN BOARD...

Page 7: ...racteristic parameter such as external comb filter video format color space test pattern etc Except for special need reset nvram item and right to OK set item are hoped not to be adjusted 4 In stv2248...

Page 8: ...of brightness and contrast as following table Item Description Default Value Note 2248 contrast IC 2248 contrast value 19 0 63 2248 bright IC 2248 bright value 32 0 63 2248 vcofine IC 2248 vco fine va...

Page 9: ...t as following table Name Description Default Value Note Sharpness Sharpness of TV video picture Sofetest Normal soft sharp sharpest softest Pw brt max video IC PW1306 max bright for video 35 0 127 Pw...

Page 10: ...to off Can see picture OK Change the teletext board E RSAG7 820 234A Can see picture OK IC N301 Pin3 IC N302 Pin5 H V SYNC output Replace N304 IC N301 Pin10 IC N302 Pin2 H V input Replace N301 or N30...

Page 11: ...20HSST Version 1 0 No sound picture ok IC N202 PIN24 25 IC N202 PIN47 Check input periphery circuit Replace N202 Replace N202 IC N202 PIN4 6 Check speaker and the connector form XP203 to speakers NO N...

Page 12: ...rminals NOT SUPPLIED 1 Power off the LCD TV pull down the power cord 2 Remove the stand and back cover dismount the steel shield cover 3 Connect the computer serial cord debug board LCD TV connector X...

Page 13: ...13 Model No LCT 20HSST Version 1 0 CIRCUIT DIAGRAM...

Page 14: ...14 Model No LCT 20HSST Version 1 0...

Page 15: ...15 Model No LCT 20HSST Version 1 0...

Page 16: ...16 Model No LCT 20HSST Version 1 0...

Page 17: ...17 Model No LCT 20HSST Version 1 0...

Page 18: ...18 Model No LCT 20HSST Version 1 0...

Page 19: ...19 Model No LCT 20HSST Version 1 0...

Page 20: ...20 Model No LCT 20HSST Version 1 0...

Page 21: ...21 Model No LCT 20HSST Version 1 0...

Page 22: ...22 Model No LCT 20HSST Version 1 0...

Page 23: ...23 Model No LCT 20HSST Version 1 0...

Page 24: ...24 Model No LCT 20HSST Version 1 0...

Page 25: ...25 Model No LCT 20HSST Version 1 0...

Page 26: ...26 Model No LCT 20HSST Version 1 0...

Page 27: ...27 Model No LCT 20HSST Version 1 0...

Page 28: ...9 LCD panel LC201V02 A3 1020371 Remote control HYDFSR A025AK 1017371 Inverter board JSY 200602 INV20 606A JK 1016016 Cable to panel HX 3003X 1015872 Adaptor JS 12060 3K 1004699 AC cord PHP 330 PHS 305...

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