Harman Kardon AVR 3550 Service Manual page 24

Ordering number : *EN5039
Preliminary
Overview
The LC74763 and LC74763M are on-screen display
CMOS LSIs that superimpose text and low-level
graphics onto a TV screen (video signal) under the
control of a microcontroller. The display characters
have a 12 by 18 dots structure, and 128 characters are
provided.
Features
• Display structure: 12 lines by 24 characters (up to 288
characters)
• Maximum character display: Up to 288 characters
• Character configuration: 12 (W) by 18 (H) dots
structure
• Number of characters: 128 characters (128 plus space
2 fonts)
• Character sizes: Three sizes (normal, double, and
triple sizes)
• Display starting positions: 64 horizontal and 64
vertical locations
• Reverse video function: Characters can be inverted on
a per character basis.
• Flashing types: Two types with periods of 0.5 and 1.0
second on a per character basis (duty fixed at 50%)
• Background color: One of eight colors (when internal
synchronization used)
• External control input: Serial data input in 8-bit units
• Built-in horizontal/vertical sync separation circuit,
AFC circuit, and synchronization detector
• Video output: Composite video signal output in
NTSC, PAL, PAL-M, PAL-N, PAL60, NTSC4.43, or
SECAM format
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
LC74763, 74763M
On-Screen Display LSI
Package Dimensions
unit: mm
3196-DIP30SD
[LC74763]
unit: mm
3216A-MFP30S
[LC74763M]
CMOS IC
SANYO: DIP30SD
SANYO: MFP30S
32095TH (OT) No. 5039-1/19