LG U990 Service Manual page 80

3.12.5 TV out Interface
The display data is converted to video with video-encoder according to CCIR-601 and sampled by 10-
bit DAC and transmitted over an analog pad as a composite video signal.
This mode is used in a system where ZR3453X is connected gluelessly to a TV screen that requires
real-time display data. ZR3453X generates TV signal according to the NTSC and PAL standards.
The TVDATA pin can drive a full video level signal directly into a 75 terminated TV cable.
[ Block Diagram ]
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
C331
22p
L300
TV_OUT
2.2uH
C334
330p
- 81 -
G14
TVDATA
F13
TVREF
392ohm 1%
C335
330p
[ Schematics ]
LGE Internal Use Only