Daewoo CM-405F, DTH-2930SSFV service manual VSSC4

Page 17

IC DESCRIPTION

 

STANDARD

 

 

VERSION

 

 

 

 

 

SYMBOL

MONO+ AV STEREO SSDIP90

FULL-STEREO/

DESCRIPTION

 

 

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_NEG_LSL+HPL

 

17

negative reference voltage SDAC (0 V)

 

 

 

 

VREF_POS_LSR+HPR

 

16

positive reference voltage SDAC (3.3 V)

 

 

 

 

VREF_NEG_HPL+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

1st 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

 

 

 

 

-16-

Image 17
Contents Color Television Table of Contents Safety Checks Safety PrecautionsSafety Precautions Subject Implosion DTH-2930SSFV SpecifictionCircuit Block Diagram Alignment Instruction Your Remote ControlR-48C04Alignment Instruction Alignment Instruction Assembly Adjustments Alignment Instruction Parallel Size Parabola Corner TOP, Corner Bottom EW Trapez Alignment Instruction UOC III Series IC DescriptionSSDIP90 VSSC4 VSC VP2 Standard Version Symbol Vrefadneg VDDC1 IC Description IC Description IC Description IC Description IC Description STR-W6756 Appendix WaveformsAppendix 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