Daewoo DTH-2930SSFV, Service Manual

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IC DESCRIPTION
SYMBOL
STANDARD
VERSION
DESCRIPTION
FULL-STEREO/
MONO+ A
V
STEREO SSDIP90
VSSP2 1 ground
VSSC4 1 ground
VDDC4 3 digital supply to SDACs (1.8V)
VDDA3(3.3V) 16 supply (3.3 V)
VREF_POS_LSL 16 positive reference voltage SDAC (3.3 V)
VREF_HPL 17 negative reference voltage SDAC (0 V)
VREF_HPR 16 positive reference voltage SDAC (3.3 V)
VREF_HPR 17 negative reference voltage SDAC (0 V)
VREF_POS_HPR 16 positive reference voltage SDAC (3.3 V)
XTALIN 18 crystal oscillator input
XTALOUT 19 crystal oscillator output
VSSA1 20 ground
VGUARD/SWIO 69 V-guard input / I/O switch (e.g. 4 mA current
sinking capability for direct drive of LEDs)
DECDIG 21 decoupling digital supply
VP1 22 1
st
supply voltage TV-processor (+5 V)
PH2LF 23 phase-2 lter
PH1LF 24 phase-1 lter
GND1 25 ground 1 for TV-processor
SECPLL 26 SECAM PLL decoupling
DECBG 27 bandgap decoupling
EWD/AVL
(1)
66 East-West drive output or AVL capacitor
VDRB 68 vertical drive B output
VDRA 67 vertical drive A output
VIFIN1 28 IF input 1