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AV-20420
AV-20421
2.1 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.
• I2C bus control utilizes single chip IC.
• Adoption of the VIDEO STATUS function.
• Adoption of the ON/OFF TIMER function.
• With 75ohm 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.
2.2 SYSTEM BLOCK DIAGRAM
1-4 (No.52111)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
MEMORY IC
SCL
SDA
CPU
(MAIN MICON)
SCL
SDA
MTS/TONE
TUNER
TUNER
CONTROL
REMOTE
IF
CONTROL
AFC
1 Chip
DECODER
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