Daewoo CP21S8 Series, Руководство по обслуживанию

Страница: 18 / 39

-18-
CP-202S Service Manual
QFP 80 pin
29 CVBS2/Y2 CVBS2/Y2 input
30
31
AUDIOIN2L/SSIF
CVBS4/Y4/AUDIOIN5L [1]
left stereo input / sound IF input
CVBS4/Y4 input audio 5 left input
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
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]
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)
SYMBOL DESCRIPTION