Philips 37PFL7422/79 Service Manual page 25

Scaler board Block diagram
SDA
SCL
RX_iTV
TX_iTV
RX/Compair
TX/Compair
MSP_INT
5V_SDA
5V_SCL
SOUND_EN
6. Block Diagram
PC_HSIN
PC_VSIN
RESET_H
PX_INT#
3V_SCL
3V_SDA
8051_ALE
8051_WR #
8051_RD#
8051_CS2P X
8051_A0-7
8051_AD0-7
SW3
SW4
25
TPT1.2A LA
SIF_OUT
5V_SDA
5V_SCL