Daewoo DTH-211F, Service Manual, Page: 21 / 64

-20-
IC DESCRIPTION
SYMBOL
STANDARD
VERSION
FACE DOWN
VERSION
DESCRIPTION
A
V
STEREO QFP128
FULL-STEREO/
MONO+ A
V
STEREO SSDIP90
MONO
A
V
STEREO QFP128
FULL-STEREO/
MONO+ A
V
STEREO SSDIP90
MONO
VSSP2 1 1 128 90 ground
VSSC4 2 1 127 90 ground
VDDC4 3 3 126 88 digital supply to SDACs (1.8V)
VDDA3(3.3V) 4 16 125 75 supply (3.3 V)
VREF_POS_LSL 5 16 124 75 positive reference voltage SDAC (3.3 V)
VREF_HPL 6 17 123 74 negative reference voltage SDAC (0 V)
VREF_HPR 7 16 122 75 positive reference voltage SDAC (3.3 V)
VREF_HPR 8 17 121 74 negative reference voltage SDAC (0 V)
VREF_POS_HPR 9 16 120 75 positive reference voltage SDAC (3.3 V)
XTALIN 10 18 119 73 crystal oscillator input
XTALOUT 11 19 118 72 crystal oscillator output
VSSA1 12 20 117 71 ground
VGUARD/SWIO 13 69 116 22 V-guard input / I/O switch (e.g. 4 mA current
sinking capability for direct drive of LEDs)
DECDIG 14 21 115 70 decoupling digital supply
VP1 15 22 114 69 1
st
supply voltage TV-processor (+5 V)
PH2LF 16 23 113 68 phase-2 lter
PH1LF 17 24 112 67 phase-1 lter
GND1 18 25 111 66 ground 1 for TV-processor
SECPLL 19 26 110 65 SECAM PLL decoupling
DECBG 20 27 109 64 bandgap decoupling
EWD/AVL
(1)
21 66 108 25 East-West drive output or AVL capacitor
VDRB 22 68 107 23 vertical drive B output
VDRA 23 67 106 24 vertical drive A output
VIFIN1 24 28 105 63 IF input 1