14
Descriptions of the pins:
2, 3: SCL, SDA, control the IC working
27, 28: Output to the right and left sound channel of sound power amplifier
33, 34: the right and left sound channel of earphone
36, 37: the right and left sound channel of AV OUT sound
47, 48: the left and right sound channel from main board
50, 51: the left and right sound channel of AV IN sound channel
53, 54: the left and right tracks of the TV sub- channel
56, 57: the left and right tracks of the TV main- channel
67, 69: the SIF input of the TV main- channel and sub- channel
The MP7720 is a sound high effect of the D class amplifier, it output 10W in the without cooling fin.
3 picture parts:
AV/SV and SCART AV/YC via switch change N708 after, them sent to SVP-EX62 decode, then two
way AV/SV and PIP TV to TVP5147 decode, but this unit only PIP TV decode.
TVP5147 chip is single chip video decoder, it include internal Y/C separate, 2D five line filter,
MICROVISION IIC communicate and HS and VS output, the supply power supply +1.8V and +3.3V
voltage to it.
3.1 The diagram of TVP5147 shown as follows:
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