Sky PDS4250, Руководство по обслуживанию, Страница: 21 / 62

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SERVICE MODE
(1) SUB BRT : For BRIGHTNESS adjustment (fixed)
(2) SUB CONT : For CONTRAST adjustment (fixed)
(3) BIAS R : For R BIAS adjustment (Changeable)
(4) BIAS G : For G BIAS adjustment (Changeable)
(5) BIAS B : For B BIAS adjustment (fixed)
(6) GAIN R : For R GAIN adjustment (Changeable)
(7) GAIN G : For G GAIN adjustment (Changeable)
(8) GAIN B : For B GAIN adjustment (fixed)
2) SAA7118 : It is a VIDEO DECODER and used to adjust a picture quality for VIDEO/DVD(480i).
[Note] This article is not for adjustment after replacement of VIDEO PCB. Therefore do not
change initial values.
(1) SUB BRT : For BRIGHTNESS adjustment (VIDEO/DVD) (fixed)
(2) SUB CONT : For CONTRAST adjustment (VIDEO/DVD) (fixed)
(3) SUB CLR : For COLOR adjustment (VIDEO) (fixed)
(4) SUB TNT : For TINT adjustment (VIDEO) (fixed)
(5) SUB SRP : For SHARPNESS adjustment (VIDEO) (fixed)
3) DPTV : Be used to adjust DEINTERLACE performance.
[Note] This article is not for adjustment after replacement of VIDEO PCB. Therefore do not
change initial values.
(1) SUB BRT : For BRIGHTNESS adjustment (VIDEO/DVD) (fixed)
(2) SUB CONT : For CONTRAST adjustment (VIDEO/DVD) (fixed)
(3) 50P : ON for 50Hz / OFF for 60Hz (fixed)
4) CXA3516 : It is a DTV/PC PROCESSOR and used to adjust a picture quality for DTV/PC.
[Note] This article is not for adjustment after replacement of VIDEO PCB. Therefore do not
change initial values.
(1) SUB CONT : For CONTRAST adjustment (fixed)
(2) Cb OFFSET : For Cb Offset adjustment (fixed)
(3) Cr OFFSET : For Cr Offset adjustment (fixed)
(4) HYS : For Sync hysteresis adjustment (fixed)
(5) THR SLP : For Sync threshold adjustment (fixed)
5) MSP34X0
[Note] This article is not for adjustment after replacement of VIDEO PCB. Therefore do not
change initial values.
(1) PRESCLE : Be used to adjust a Audio prescale.
6) MISC
(1) TST PTRN AT : Cycled patterns from R G B WH every 1 minute automatically.