Pw113 General; Vpc3230 Block Diagram; Pin Function Descriptions - Changhong Electric PT4206 Service Manual

3 PW113 General

2.2.
The PW113 integrates an industry-leading scaler, an advanced OSD engine, a flexible input
port system, system memory, and a powerful 80186-based
swith intelligent Auto Image Optimization circuitry The Image Processor supports NTSC or PAL
video data with a 4:3 aspect ratio and 16:9 aspect ratio sources, such as DVD or HDTV. Video
Input formats can be in either YUV4:4:4 (24 bit) or YUV4:2:2 (16 bit) input modes The PW113
uses an integrated PLL to synchronize the display interface timing to the input timing An
integrated OSD controller supports sophisticated bit-mapped based OSDs The OSD controller
supports transparent, translucent, and fade-in/ fade-out functions.

Pin Function Descriptions

Pin(s) name
Video Port Pin Descriptions
71 VCLK
74 VVS
75 VHS
69 VFIELD
70 VPEN
47 56 YUV0 YUV7
Graphics Port Pin Descriptions
31 GCLK
32 GVS
33 GHSSOG
34 GPEN
VPort Pixel Clock input
VPort Vertical Sync input
VPort Horizontal Sync input
VGPort Field Input
VPort Pixel Enable
VGPort ITUR656 Pixel Data. I/O port
We use 47 MUTE mute control
PW1235output enable 49 VGASEL VGA/YpbPr select 50
S1 sound system control 51 DVIPD DVI interface standby
54 STANDBY power standby control 56 RST1 peripheral
IC reset
GPort Pixel Clock input
GPort Vertical Sync input
GPort Horizontal Sync/GPort Sync- on-Green input
GPort Pixel Enable input
10
horizontal and vertical image scaler
Function
48 PW1230E