AVR 3550 - Harman Kardon Audio Service Manual (repair manual). Page 24

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.

• 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

unit: mm

unit: mm

[LC74763M]

SANYO: MFP30S

[LC74763]

SANYO: DIP30SD

CMOS IC

Ordering number : 

*

EN5039

32095TH (OT) No. 5039-1/19

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN