LG 21FB3AB-T3 Service Manual page 11

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SVC

GAMMA ST

0: Low operating point; 1: Middle operating point;

2: High operating point; 3: Defect

DC REST

0: 100%; 1: 107%; 2: 113%; 3: 129%

BS START

0: Black Stretch ON (Starting Point=401RE);

1: Black Stretch ON (Starting Point=501RE)

2: Black Stretch ON (Starting Point=601RE)

3: Black Stretch OFF

SVC 04

BS GAIN

0 (min) ~ 2 (max)

C TRAP

0 (min) ~ 7 (max)

C BPF

0 (min) ~ 3 (max)

GAMMA GA

0 (min) ~ 3 (max)

GRAY MDE

0: White (70%); 1: Gray (15%)

YCMIX

0: YC_C; 1: 2.2V_DC

TXT CC

0: Output without LPF; 1: Output by LPF

VIN/XRGB

0: FBP/EXT RGB IN; 1: YC-C/DVD-Y/CR-IN/CB-IN

T DISABLE

0: Test mode; 1: TV operating normally

H FREQ

0 ~ 63

AFC G

0: Automatic mode; 1: Enforce high gain mode

A MUTE

0: Audio Mute OFF; 1: Audio Mute ON

V MUTE

0: Video Mute OFF; 1: Video Mute ON

SYN KILL

0 ~ 1

V KILL

0: TV operating mode; 1: Defeat the vetical output

VSEP

0: Normal mode; 1: Sensitivity up mode

V RES T

0: Normal mode; 1: Sensitivity up mode

HLVDT

0: If H-Lock is not defect, stop vertical sync detection

SVC 05

1: V sync system always working

V SYN

CD MODE

0 ~ 7

FBPBLK

0 ~ 1

AFC NST

0: Normal mode; 1: Enforce low gain mode (non-standard)

AFC2SW

0: About 4us ~ 8us; 1: about 8us ~ 12us

CROSS BW

0: TV operating mode; 1: Black pattern; 2: White pattern; 3: Crosshatch pattern

BLK DEF.

0: Blanking ON (normal mode); 1: Blanking OFF

SUB BIAS

0 ~ 127

V TRANS

0: Random transmission; 1: Transmission between vertical retrace period

DIG OSD

0: Analogue OSD mode; 1: Digital OSD mode

RGB CONT

0 ~ 15

RGB TEMP

0: -1VBE; 1: Flat

ACL DEF.

0: ACL Defect OFF; 1: ACL Defect ON

ACL SW

0: High sentivity; 1: Low sentivity

ABL DEF.

0: ABL Defect OFF; 1: ABL Defect ON

MID STP

0: Enable limit operating; 1: Disable limit operating

ABL TH

0 ~ 7

VXO ADJ

CrCb IN

0: Video; 1: CbCr

C EXT

SVC 06

0: Internal composite video signal; 1: From pin 2 input

C BYPASS

0: Bypass OFF; 1: Bypass ON (used in Y/C mode)

C KI ON

0: Automatic mode (TV in operation); 1: Enforce killer ON when color control is min

C KI OFF

0: TV in operation; 1: Test mode, killer circuit is not in operation

C KI OPE

0 ~ 7 (-30dB ~ -40dB)

GRN ADJ

0 ~ 7 (Auto green off ~ level high)

TINT TH

0: Normal mode; 1: Tint control set center value (cann't control tint)

ID KILL

0: Easy to become NTSC; 1: Easy to become PAL

CVCO ADJ

0 ~ 7

VCO CNTR

0: Normal mode; 1: VCO free run mode

FSC/EHT

0: FSC OUT; 1: EHT

C SYS

0: PAL/NTSC/4.43 NTSC (AUTO); 1: PAL-M/PAL-N/NTSC(AUTO)

2: PAL; 3: PAL-M; 4: PAL-N; 5: NTSC; 6: 4.43NTSC; 7: Not available

RY BY GA

0 ~ 15

RY BY AN

0 ~ 15

R-Y LEVEL

0 ~ 31

SVC 07

B-Y LEVEL

0 ~ 31

GY AMP

0 ~ 15

HTNo CIr

0: Color ON; 1: Color OFF

VXO Free

0: Normal mode;1: VXO free run mode

0: Normal mode;1: VXO Standby mode

VXO Stby

Only for training and service purposes.

Range

- 11 -

Initial(SECAM)

Initial(PAL)

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