background image

-8-

Service Adjustments

MENU

MENU

MENU

  

   S1.11100101     S2.11111000
    ADDRESS                     DATA
     02  H-PHA                        08

Item No.

Item 

Data value

General

This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the 
service adjustments.

2. Service Adjustments:
 

Press the 

CHANNEL UP

 or  

CHANNEL DOWN 

 

button on the remote control handset to select the  

 

 

desired service menu item you want to adjust. 

 

 

Use the 

 

or

 -

 to adjust  the data. The 

or

   

 

button will increase or decrease the data 

 

sequentially. 

3. Exit from the Service Menu
 

Press the 

MENU 

button to turn off the Service Menu    

 

display.

 

The data which is set in the service mode is stored    

 

into the memory IC automatically.

[ Service Mode Display ]

Service Adjustment-1

1. Enter the Service Menu
 

While pressing the 

MENU 

button on the television,  press the Number Key

 2

 on the remote control unit.  

 

 

The Service Menu now appear.

IC802 (EEPROM) Replacement

When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. 
However, the bus data should be checked and some bus data should be set up before attempting the service adjustments. (See 
pages 9 ~ 10 for detailed information.)

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VOLUME -

CHANNEL UP

CHANNEL DOWN

Содержание C21LF41

Страница 1: ...r Source AC220V 50Hz 60Hz Receiving System PAL M M N N NTSC M M Channel Coverage Antenna mode VHF CH02 CH13 UHF CH14 CH69 CATV mode VHF band CH01 CH13 Mid band CH14 CH22 Super band CH23 CH36 Hyper band CH37 CH64 Ultra band CH65 CH94 and CH100 CH125 Low mid band CH95 CH99 Aerial Input Impedance 75 Input Terminals AV1 Video Phono jack 1 AV1 Audio Phono jack R L 1 set AV2 Video Phono jack 1 AV2 Audio...

Страница 2: ...xit from the Service Menu Press the MENU button to turn off the Service Menu display The data which is set in the service mode is stored into the memory IC automatically Service Mode Display Service Adjustment 1 1 Enter the Service Menu While pressing the MENU button on the television press the Number Key 2 on the remote control unit The Service Menu now appear IC802 EEPROM Replacement When IC802 ...

Страница 3: ...ZE adjustment 60Hz 10 VSC60 0 16 15 Difference value of Vertical S compensation 60Hz 11 VLI60 0 16 15 Difference value of Vertical linearity adjustment 60Hz 12 OSDHP 37 01 255 OSD horizontal remark position 13 OSDC 04 00 07 OSD Contrast 14 V SCP 03 0 7 V SIZE COMP 15 SBIAS 31 00 127 Sub Bias adjustment 16 RBIAS 00 00 255 Red Bias adjustment 17 GBIAS 00 00 255 Green Bias adjustment 18 BBIAS 00 00 2...

Страница 4: ... 54 DEEM 00 00 01 De emphasis TC 55 V LVL 06 00 07 Video Lvel 56 STRAP 04 00 07 S Trap Adjust 57 IFOM S 00 00 01 OVER MODURATION SW 58 IFMN S 00 00 01 AUDIO MONITOR SW MONITOR OR FM 59 IFTRPS 00 00 01 IC built in SIF TRAP SW ON OFF 60 OVMLVL 08 00 15 OVER MOD LEVEL 61 VBSW 00 00 01 VBLK SW 62 FBTS 00 00 01 FBPBLK SW 63 HBLKL 05 00 07 H Blanking Control Left 64 HBLKR 03 00 07 H Blanking Control Rig...

Страница 5: ... Gain 86 VSHIFT 02 0 15 V SHIFT 87 CTRAP 04 0 7 C TRAP ADJUST 88 CBPF 00 0 3 C BPF ADJUST 89 C KILL 00 0 1 C_KILL ON 90 G YAMP 08 0 15 G Y AMP 91 B YDPM 0 16 15 Difference value of PALM B Y DC Level 92 R YDPM 0 16 15 Difference value of PALM R Y DC Level 93 YTH 00 0 3 Y TH 94 YGAIN 00 0 3 Y Gain 95 RWIDTH 00 0 3 R Width 96 ROFSET 00 0 3 R Offset 97 BWIDTH 00 0 3 B Width 98 BOFSET 00 0 3 B Offset 9...

Страница 6: ... in the service mode 4 Change value to be optimum vertical centre position 5 Exit from the service mode Item 04 V SIZ VERTICAL SIZE 1 Receive a monochrome circular pattern 2 Set the brightness and contrast to maximum 3 Select Item No 04 V SIZ in the service mode 4 Change value to be optimum vertical size 5 Exit from the service mode 1 Receive a monochrome circular pattern 2 Set the brightness and ...

Страница 7: ... each colour until a dim white line produced Please see the control button alloca tions in this mode 7 Select Item 23 DRV mode to enter the white balance adjusting mode 8 Press the 7 Red Drive RECALL Red Drive 8 Green Drive or 0 Green Drive button 9 Blue Drive or SLEEP TIMER Blue Drive alternately to produce normal black and white picture 9 Exit from the service mode 10 Check for proper grey scale...

Страница 8: ...ce Adjustments Press the CHANNEL UP or CHANNEL DOWN button on the remote control handset to select the desired service menu item you want to adjust Use the VOLUME or to adjust the data The or button will increase or decrease the data sequentially 3 Exit from the Service Menu Press the MENU button to turn off the Service Menu display The data which is set in the service mode is stored into the memo...

Страница 9: ...button STEREO SEPARATION ADJUSTMENT 1 Connect an oscilloscope Probe A to TP 317 pin 38 of IC3401 and the ground Probe B to TP 318 pin 39 of IC3401 and the ground 2 Turn on the TV set and receive the multi sound programme 3 Press and hold the MENU button on the TV set and press 3 button on the remote control transmitter to enter the service mode 4 Select LOW SEPARATION by pressing the CHANNEL UP DO...

Страница 10: ...vision press the 4 or MENU button on the remote control unit The Service Menu now appear 2 Service Adjustments Press and hold the VOLUME or VOLUME button on the remote control handset or TV set to make fine tuning adjustment Press and hold the VOLUME button for higher frequency tuning and press and hold the VOLUME for lower frequency tuning Entering the Service Menu Exit from the Service Menu MENU...

Страница 11: ...es to the stand by mode When an abnormality occurs during TV reception it causes pin 23 of the CPU to go continually Low voltage for about one second The CPU detects that this has occurred and outputs the signal from pin 36 to switch off the power supply lines Releasing the protective circuit and restor ing power supply To release the protective circuit and restore power supply turn the power to t...

Страница 12: ...r colours to check this use bias controls Readjust the yoke position if necessary until all screens are pure 7 Adjust each Bias control and screen control to obtain white raster Refer to Gray Scale Adjustment If part of the picture screen is coloured adjust the Deflection Yoke position for ward or backward slightly 8 Tighten the mounting screw of the Deflection Yoke Adjust Convergence next CENTRE ...

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