User's Manual

1. General Description
This LCD monitor TV support analog PC VGA signal up to 1024X768 75HZ XGA
mode for 15” model and 1280X1024 75Hz SXGA mode for 18” model.
And it can also support TV, YC, CVBS or Y Cb Cr signal input ( from Cinch I/O ) ,
CVBS or R G B signal ( from SCART I/O ). And it can also support 480I, 480P, 720P,
1080i 60Hz HDTV input and 576I, 576P, 720P, 1080I 50Hz HDTV input. Official HD
timing: 480P 60, 576P 50, 720P 60, 1080i 60.
The PIP function allows user to watching TV while using the PC.
This LCD monitor TV use two CPU one is for Scaler engine and the other is for TV
signal Control.
One Philips CPU P87C51MC2BA CPU is used for the scaling control. It is used to
control PC VGA input signal, display OSD, back light control. P87C51MC2BA is an
standard 8051 base MCU. The program code is stored in one 256K (64K X 4 banks)
flash ROM.
The other CPU is Philips Painter I SAA5564. It is used for Teletext, C.C., V-chip,
RC keypad input processing. TV tuning control, sound system detect and sound control,
SAA7118 color decoding are all controlled by painter I. This CPU will detect the PC H,
V input for PC mode power saving control.
These two CPU are connected via I2C for communication. Scaler CPU is Master,
and painter CPU is slave.
PC video is connected to scaller. This scaler has internal ADC. So no external
ADC Is needed.
Video decoder SAA7118 is used for TV video processing and convert it with
CCIR 656 8bits digital format and send to De-interlace IC S2300 for de-interlace
process, then S2300 will send RGB format digital signal to scaler IC JAGASM is used
for picture Scaling process, Finally, JAGASM will output 48 bits TTL RGB signals to
LCD panel for picture display.
One audio decoder MSP34XXG is used for TV sound processing.
Exhibit 4
Brief Description of Circuit Functions