JVC AV-20320/S Service Manual page 4

AV-20320
AV-20321
FEATURES
New chassis design enables use of a single board with simplified
circuitry.
Provided with miniature tuner (TV/CATV).
Multifunctional remote control permits picture adjustment.
Adoption of the CHANNEL GUARD function prevents the
specific channels from being selected, unless the "ID number" is
key in.
2
I C bus control utilizes single chip ICs.
SYSTEM BLOCK DIAGRAM
4
MEMORY IC
SCL SDA
CPU
(MAIN MICON)
SCL
TUNER MTS/TONE
TUNER
CONTROL
Adoption of the VIDEO STATUS function.
Adoption of the ON/OFF TIMER function.
Adoption of the HYPER SURROUND function.
With 75 V/U in common (F-Type) ANT Terminal.
SLEEP TIMER for setting in real time.
Closed-caption broadcasts can be viewed.
Audio Video input terminal.
Variable Audio output terminal.
Built-in MTS system.
IF
AFC
SDA
Chip
DECODER
No. 51964
REMOTE
CONTROL