Service manual

25
20U-FS1
CU20FS1
25-1
25-2
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
1) RECEIVE THE UHF 15 CH.
2) PUSH THE DISPLAY KEY (R/C), MAKE SURE THAT THE OSD
V-CHIP RATING DISPLAY IS EQUAVALENCE TO TRANSMISSION
RATING.
V-CHIP
– STEP RANGE –
–
AFTER ALL ADJUSTMENT FINISHED.
UHF 15 CH (V-CHIP TRANSMISION SIGNAL CH)
AC 120V, RF INPUT
CONFIRMATION BY THE CRT
ADJUSTMENT
ITEM
ADJUSTMENT
POSITION
CONTROL PRE-ADJUST
REQUIREMENT
CONTENT
INPUT
CONDITION
OUTPUT
ADJUSTMENT
PROCEDURE
TRI-VISION
– STEP RANGE –
–
AFTER ALL ADJUSTMENT FINISHED.
RATING SYS. DOWNLOAD SIGNAL A/B (PRCC SIG) INCLUDED SIGNAL.
AC 120V, RF INPUT
CONFIRMATION BY CRT SCREEN
[VOLTAGE CONFIRMATION]
(DOWNLOADING CONFIRMATION)
1) RECEIVE THE DOWNLOAD A SIGNAL.
2) SELECT V-CHIP CONTROL MENU THEN ON THE DOWNLOAD.
3) UNPLUG THE AC THEN PLUG AGAIN.
4) BACK TO V-CHIP CONTROL MENU, CHECK THE DOWNLOADED
RATIING AND NAME.
(DOWNLOADING CONFIRMATION)
1) RECEIVE THE DOWNLOAD B SIGNAL.
2) UNPLUG THE AC CORD AND PLUG IT AGAIN.
3) BACK TO V-CHIP CONTROL MENU, CHECK THE DOWNLOADED
RATING AND NAME.
~ Do check one sample that been picked up for presenting the specified
group sample.
[COMFIRMATION]