Daewoo DTQ 20U4SC Service Manual

-49-
IC DESCRIPTION Appendix
PIN PIN NAME DESCRIPTION DEF ACT I/O PUD STB
1 P10 NC D
2P11NC - D
3 P12 NC - D
4 P13 NC - D -
5 P14 AV(CVBS in) OPTION
H : AV1~AV2, CVI ; L : AV1~AV3, CVI - H I U -
6 P15 INCH OPTION D
7 P16 NC D
8 P17 NC(Spare)
9 VSS GND
10 XT1 Crystal INPUT I
11 XT2 Crystal OUTPUT O
12 VDD Supply Voltage(+5V) -
13 P84/AN4 Key INPUT - - I U H
14 P85/AN5 AFT Signal INPUT - H I - L
15 P86/AN6 NC - I -
16 P87/AN7 NC - I -
17 RES(inv) Reset - L I - H
18 FILT MCU PLL Filter
19 CVBSIN Composite Video (Closed Caption) H I
20 VS(inv) Vertical Sync L I U H
21 HS(inv) Horizontal Sync L I U H
22 R OSD RED Signal OUTPUT H O
23 G OSD GREEN Signal OUTPUT H O
24 B OSD BLUE Signal OUTPUT H O
25 BL OSD BLANKING Signal OUTPUT H O
26 I OSD Intensity
27 SDA0 Tuner serial data OUTPUT H O U
28 SCLK0 Tuner clock OUTPUT H O U
29 SDA1 IC serial data INPUT/OUTPUT H I/O U
30 SCLK1 IC clock OUTPUT H O U
31 S-VHS S-JACK ‘H’input - DEFAULT ‘H’*P70 L H I -
32 P71 NC I
33 P72 NC
34 P73 Remote control Signal INPUT L I H
35 P00 NC
36 P01 VDP3130Y reset OUTPUT L H O - L
37 P02 NC -
38 P03 MSP3420G reset OUTPUT L H O - L
39 P04 Video SW OUTPUT : ONLY AV4 ‘H’ LHO - L
40 P05 Audio mute OUTPUT L H O - L
41 P06 Degaussing Coil SW OUTPUT L H O - L
42 P07 Stand-by Power SW OUTPUT L H O - H
2. Pin Description
NOTE : DEF(default), ACT(Active), I/O(Input/Output), PUD(Pull-up/-down), STB(Stand-by)

Daewoo DTQ 20U4SC Specifications

General

Brand	Daewoo
Model	DTQ 20U4SC
Category	CRT TV
Language	English