Daewoo DTL-2950K Service Manual page 21

87 SIFAGC/DVBAGC (2)
88
89
QSSO/AMOUT/AUDEE
90
91
92
93
94
95
96
97
98
99 SIFIN2/DVBIN2 (2)
100 SIFIN1/DVBIN1 (2)
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121 VREF_NEG_HPL+HPR negative reference voltage SDAC (0 V)
122 VREF_POS_LSR+HPR positive reference voltage SDAC (3.3 V)
123 VREF_NEG_LSL+HPL negative reference voltage SDAC (0 V)
124
125
126
127
128
DTV R&D Europe
PLLIF
GND2
M (2)
DECSDEM
AUDOUTSR
AUDOUTSL
AUDIOIN5R
AUDIOIN5L
AVL/SWO/SSIF/
REFO/REFIN (2)
EHTO
AGCOUT
GNDIF
IREF
VSC
VIFIN2
VIFIN1
VDRA
VDRB
EWD/AVL (1)
DECBG
SECPLL
GND1
PH1LF
PH2LF
VP1
DECDIG
VGUARD/SWIO
VSSA1
XTALOUT
XTALIN
VREF_POS_HPR
VREF_POS_LSL
VDDA3(3.3V)
VDDC4
VSSC4
VSSP2
AGC sound IF / internal-external AGC for DVB
applications
IF-PLL loop filter
ground 2 for TV processor
QSS intercarrier output / AM output / deemphasis
(front-end audio
out)
decoupling sound demodulator
audio output for SCART/CINCH (right signal)
audio output for SCART/CINCH (left signal)
audio-5 input (right signal)
audio-5 input (left signal)
Automatic Volume Levelling / switch output / sound IF
input /
subcarrier reference output / external reference signal
input for I
signal mixer for DVB operation
EHT/overvoltage protection input
tuner AGC output
SIF input 2 / DVB input 2
SIF input 1 / DVB input 1
ground connection for IF amplifier
reference current input
vertical sawtooth capacitor
IF input 2
IF input 1
vertical drive A output
vertical drive B output
East-West drive output or AVL capacitor
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)
Ground
crystal oscillator output
crystal oscillator input
positive reference voltage SDAC (3.3 V)
positive reference voltage SDAC (3.3 V)
supply (3.3 V)
digital supply to SDACs (1.8V)
Ground
Ground
CP-650 Service Manual
20