Prima PS-42T8, Service Manual, Page: 12 / 46

10
PW2300 instruction of the pin:
Pin Name Function Pin Name Function
A4 XIN Resonator input N4 B_1 AV1 blue input
A5 XOUT Resonator output P1 R_2 AV2 red input
B2 SDA I
2
C bus data P2 B_2 AV2 green input
B3 SCL I
2
C bus clock R3 CVBS_SOG1 T multiple green sync output
of video signal
K2 VGA-R1 VGA red R4 C_1 S-VHS color signal input
K1 VGA-G1 VGA green B9 GVBI Vertical blanking interval
M1 VGA-B1 VGA blue E16 G_VS Vertical sync output
T1 VGA_H VGA CH1 horizontal
sync
F14 G_HS Horizontal sync output
T3 VGA_V VGA CH1 vertical sync F15 G_AHS Crude horizontal sync
N1 R_1 AV1 red input G15 G_DLK Clock output
N1 G_1 AV1 green input B10-B12
A10-A12
C11-C12 GRE (0-7) Red data output
P3 SOG_2 AV2 green sync input C13,
C14
B13,
B14
A13-A16 GGE (0-7) Green data output
P4 G_2 AV2 blue input B15-B16
C15-C16
E14 GBE (0-7)
Blue data output
3.2 AD9398
The chip of high-definition multimedia interface, AD9398 HDMI (High-D efinition Multimedia
Interface) this interface is the digital interface standard that bring up rapidly. The use of this
interface is the transmission of electronic video signal of standard definition and high definition, and
this interface provide the content protect technology. AD9398 also support HDCP (High bandwidth
Digital Content Protection). AD9398 include a HDMI 1.0 interface module and a HDCP module. The
inputted HDMI signal will be sent to the interface of this chip to make the decoding, simultaneity
24-bit digital RGB signal and the related sync signals are outputted to N602 PW118 to make the
processing. Moreover, HDCP module makes the communication by DDCSDA, DDCSCL and HDMI
signal sources to make the video signal decoding. The chip connect a external memory N207
24LC168SN that store the secret key of decoding required by HDCP, and make the communication
by the pin MCL, MDA of AD9893.