14
SYMBOL
AV
STEREO
AV STEREO
NO AUDIO
DSP
MONO DESCRIPTION
VREF_HPR
8
-
-
negative reference voltage SDAC (0 V)
VREF_POS_HPR
9
-
-
positive reference voltage SDAC (3.3 V)
XTALIN
10
10
10
crystal oscillator input
XTALOUT
11
11
11
crystal oscillator output
VSSA1
12
12
12
ground
VGUARD/SWIO
13
13
13
V-guard input / I/O switch (e.g. 4 mA current
sinking capability for direct drive of LEDs)
DECDIG
14
14
14
decoupling digital supply
VP1
15
15
15
1
st
supply voltage TV-processor (+5 V)
PH2LF
16
16
16
phase-2 filter
PH1LF
17
17
17
phase-1 filter
GND1
18
18
18
ground 1 for TV-processor
SECPLL
19
19
19
SECAM PLL decoupling
DECBG
20
20
20
bandgap decoupling
EWD/AVL
(1)
21
21
21
East-West drive output or AVL capacitor
VDRB
22
22
22
vertical drive B output
VDRA
23
23
23
vertical drive A output
VIFIN1
24
24
24
IF input 1
VIFIN2
25
25
25
IF input 2
VSC
26
26
26
vertical sawtooth capacitor
IREF
27
27
27
reference current input
GNDIF
28
28
28
ground connection for IF amplifier
SIFIN1/DVBIN1
(2)
29
29
29
SIF input 1 / DVB input 1
SIFIN2/DVBIN2
(2)
30
30
30
SIF input 2 / DVB input 2
AGCOUT
31
31
31
tuner AGC output
EHTO
32
32
32
EHT/overvoltage protection input
AVL/SWO/SSIF/
REFO/REFIN
(2)(3)
33
33
33
Automatic Volume Levelling / switch output /
sound IF input / subcarrier reference output /
external reference signal input for I signal mixer for
DVB operation
AUDIOIN5
-
-
34
audio 5 input
AUDIOIN5L
34
34
-
audio-5 input (left signal)
AUDIOIN5R
35
35
-
audio-5 input (right signal)
AUDOUTSL
36
36
-
audio output for SCART/CINCH (left signal)
AUDOUTSR
37
37
-
audio output for SCART/CINCH (right signal)
DECSDEM
38
38
38
decoupling sound demodulator
QSSO/AMOUT/AUDEEM
(2)
39
39
39
QSS intercarrier output / AM output / deemphasis
(front-end audio out)
GND2
40
40
40
ground 2 for TV processor
PLLIF
41
41
41
IF-PLL loop filter
Содержание 17MB18
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Страница 57: ...72 17 TFT TV Service Manual 9 2 Keypad Schematics 17TK26 ...
Страница 58: ...73 17 TFT TV Service Manual 9 3 IR LED Board Schematics 17LD23 ...
Страница 59: ...74 17 TFT TV Service Manual 9 4 Remote Controller Schematics 11UK10 2 ...
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