Daewoo CP21S8 Series Service Manual page 18

CP-202S Service Manual
QFP 80 pin
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CVBS4/Y4/AUDIOIN5L [1]
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SYMBOL
CVBS2/Y2
AUDIOIN2L/SSIF
AUDIOIN4R
AUDIOIN4L
IFVO/SVO/PIP [4]
VP2
AGC2SIF
PLLIF
GND2
SIFAGC
AGCOUT
SIFIN2
SIFIN1
IREF
VSC
VIFIN2
VIFIN1
VDRA
VDRB
EWD
DECBG
SECPLL
GND1
PH1LF
PH2LF
VP1
DECDIG
VGUARD/SWIO [6]
DESCRIPTION
CVBS2/Y2 input
left stereo input / sound IF input
CVBS4/Y4 input audio 5 left input
audio-4 input (right signal)
audio-4 input (left signal)
IF video output / selected CVBS output / PIP output
2nd supply voltage TV processor (+5 V)
Sound IF AGC capacitor
IF-PLL loop filter
ground 2 for TV processor
Sound IF AGC capacitor
tuner AGC output
2nd sound IF input
1st sound IF input
reference current input
vertical sawtooth capacitor
IF input 2
IF input 1
vertical drive A output
vertical drive B output
East-West drive output
bandgap decoupling
SECAM PLL decoupling
ground 1 for TV-processor
phase-1 filter
phase-2 filter
1st supply voltage TV-processor (+5 V)
decoupling digital supply
V-guard input / I/O switch (e.g. 4 mA current sinking
capability for direct drive of LEDs)
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