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IC DESCRIPTION
VIFIN2
25
29
104
62
IF input 2
VSC
26
30
103
61
vertical sawtooth capacitor
IREF
27
31
102
60
reference current input
GNDIF
28
32
101
59
ground connection for IF ampli er
SIFIN1/DVBIN1
(2)
29
33
100
58
SIF input 1 / DVB input 1
SIFIN2/DVBIN2
(2)
30
34
99
57
SIF input 2 / DVB input 2
AGCOUT
31
35
98
56
tuner AGC output
EHTO
32
65
97
26
EHT/overvoltage protection input
AVL/SWO/SSIF/
REFO/REFIN
(2)
33
44
96
47
Automatic Volume Levelling / switch output /
sound IF input / subcarrier reference output /
external reference signal input for I signal mixer
for DVB operation
AUDIOIN5
-
-
-
-
audio 5 input
AUDIOIN5L
34
36/-
95
55/-
audio-5 input (left signal)
AUDIOIN5R
35
-
94
-
audio-5 input (right signal)
AUDOUTSL
36
37
93
54
audio output for SCART/CINCH (left signal)
AUDOUTSR
37
38
92
53
audio output for SCART/CINCH (right signal)
DECSDEM
38
-/72
91
-/19
decoupling sound demodulator
QSSO/AMOUT/AUDEEM
(2)
39
-/36
90
-/55
QSS intercarrier output / AM output /
deemphasis (front-end audio out)
GND2
40
39
89
52
ground 2 for TV processor
PLLIF
41
40
88
51
IF-PLL loop lter
SIFAGC/DVBAGC
(2)
42
41
87
50
AGC sound IF / internal-external AGC for DVB
applications
DVBO/IFVO/FMRO
(2)
43
42
86
49
Digital Video Broadcast output / IF video output /
FM radio output
DVBO/FMRO
(2)
44
-
85
-
Digital Video Broadcast output / FM radio output
VCC8V
45
43
84
48
8 Volt supply for audio switches
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
Содержание DTH-291F
Страница 7: ... 6 CIRCUIT BLOCK DIAGRAM ...
Страница 15: ... 14 IC DESCRIPTION 1 1 UOC III BLOCK DIAGRAM 1 UOC III SERIES ...
Страница 16: ... 15 IC DESCRIPTION 1 2 UOC III FEATURES ...
Страница 17: ... 16 IC DESCRIPTION ...
Страница 18: ... 17 IC DESCRIPTION ...
Страница 19: ... 18 IC DESCRIPTION ...
Страница 27: ... 26 IC DESCRIPTION 2 ...
Страница 28: ... 27 IC DESCRIPTION ...
Страница 29: ... 28 IC DESCRIPTION 3 ...
Страница 30: ... 29 IC DESCRIPTION 4 ...
Страница 31: ... 30 IC DESCRIPTION ...
Страница 36: ... 35 1 NO POWER TROUBLESHOOTING GUIDE Appendix ...
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Страница 63: ...DAEWOO ELECTRONICS CORP PRINTED DATE SEP 2005 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA ...