Daewoo DTH-2930SSFV, CM-405F service manual Vsc

Page 18

IC DESCRIPTION

 

STANDARD

 

 

VERSION

 

 

 

 

 

SYMBOL

MONO+ AV STEREO SSDIP90

FULL-STEREO/

DESCRIPTION

 

 

VIFIN2

 

29

IF input 2

 

 

 

 

VSC

 

30

vertical sawtooth capacitor

 

 

 

 

IREF

 

31

reference current input

 

 

 

 

GNDIF

 

32

ground connection for IF ampli er

 

 

 

 

SIFIN1/DVBIN1 (2)

 

33

SIF input 1 / DVB input 1

SIFIN2/DVBIN2 (2)

 

34

SIF input 2 / DVB input 2

AGCOUT

 

35

tuner AGC output

 

 

 

 

EHTO

 

65

EHT/overvoltage protection input

 

 

 

 

AVL/SWO/SSIF/

 

44

Automatic Volume Levelling / switch output /

REFO/REFIN (2)

 

 

sound IF input / subcarrier reference output /

 

 

 

external reference signal input for I signal mixer

 

 

 

for DVB operation

 

 

 

 

AUDIOIN5

 

-

audio 5 input

 

 

 

AUDIOIN5L

36/-

audio-5 input (left signal)

 

 

 

 

AUDIOIN5R

 

-

audio-5 input (right signal)

 

 

 

 

AUDOUTSL

 

37

audio output for SCART/CINCH (left signal)

 

 

 

 

AUDOUTSR

 

38

audio output for SCART/CINCH (right signal)

 

 

 

DECSDEM

-/72

decoupling sound demodulator

 

 

 

QSSO/AMOUT/AUDEEM (2)

-/36

QSS intercarrier output / AM output /

 

 

 

deemphasis (front-end audio out)

 

 

 

 

GND2

 

39

ground 2 for TV processor

 

 

 

 

PLLIF

 

40

IF-PLL loop lter

 

 

 

 

SIFAGC/DVBAGC (2)

 

41

AGC sound IF / internal-external AGC for DVB

 

 

 

applications

 

 

 

 

DVBO/IFVO/FMRO (2)

 

42

Digital Video Broadcast output / IF video output /

 

 

 

FM radio output

 

 

 

 

DVBO/FMRO (2)

 

-

Digital Video Broadcast output / FM radio output

VCC8V

 

43

8 Volt supply for audio switches

 

 

 

 

-17-

Image 18
Contents Color Television Table of Contents Safety Precautions Safety ChecksSafety Precautions Subject Implosion Specifiction DTH-2930SSFVCircuit Block Diagram Your Remote ControlR-48C04 Alignment InstructionAlignment Instruction Alignment Instruction Assembly Adjustments Alignment Instruction Parallel Size Parabola Corner TOP, Corner Bottom EW Trapez Alignment Instruction IC Description UOC III SeriesSSDIP90 VSSC4 VSC VP2 Standard Version Symbol Vrefadneg VDDC1 IC Description IC Description IC Description IC Description IC Description STR-W6756 Waveforms AppendixAppendix Troubleshooting Guide Troubleshooting Guide No Sound Check Tuner CLOCK,DATA Voltage No Color Check Voltage Check the RGB OUT Check the Crystal Troubleshooting Guide Electrical Parts List Electrical Parts List Reta PCB Nylon Oxide Film 1K OHM J Small CCXB2H561K Cera CBXF1H104Z Cera Semi 50V F 0.1MF Z Tapping PCB Main DUZ3R3B Diode Zener Metal Film R630 RD-AZ103J Carbon Comp PTCPMSK142 PCB CRT Manual AS DTQ-29U1SCV Page Page Page Page Page Daewoo Electronics Corp