JVC AV-20N43 Service Manual page 12

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AV-21D43
AV-20N43
AV-14F43
FEATURES
" New chassis design enables use of an interactive on-screen control.
" Wide range voltage (rating voltage :110V~240V / operating voltage : 90V~260V) AC power input.
" With AUDIO / VIDEO INPUT & OUTPUT terminal.
" MUTING button can reduce the audio level to zero instantly.
" Functional remote control to operate TV set (for channel select, volume control, power ON/OFF, etc.) from a distance.
2
" I
C bus control utilizes single chip ICs for IF, V/C, DEF. VSM PRESET, PRESET & SETUP TOUR.
" By means of AUTO PROGRAM, the TV stations can be selected automatically and the TV channels can also be rearranged automatically.
" Built-in AI ECO (ECONOMY, ECOLOGY) sensor.
In accordance with the brightness in a room, the brightness and / of contrast of the picture can be adjusted automatically to make the
optimum picture which is easy on the eye.
" Built – in ON TIMER, RETURN + & CHILD LOCK.
" Built–in PICTURE BOOSTER circuit newly, to amplify the broadcasting wave in the area where wave is weak.
SYSTEM BLOCK DIAGRAM
"
IC702
MEMORY
SCL2/SDA2
4
IC701
MICRO
COMPUTER
No. 52036
IC301
VIDEO/CHROMA
DECORDER
SCL1/SDA1
TU001
TUNER

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