CP-776.pdf part of Daewoo CP-776 CP-776.pdf, Daewoo Ņhassis CP CP-776 CP-776.pdf text manual preview

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Service Manual
59 / 66 Cm STEREO Colour Television
CHASSIS : CP-776

MODEL : DTL- 25G6F
DTL- 25G7F
DTL- 28G2F
DTL- 28G6F
DTL- 28G7F
DTL- 28G8F

DAEWOO ELECTRONICS CO., LTD.
http://svc.dwe.co.kr Sep,1999
CONTENTS

1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Safety Instruction . . . . . . . . . . . . . . . . . . . . . . . 3
3. Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . 4

4. Alignment Instructions . . . . . . . . . . . . . . . . . . . . . 5
5. IC Description . . . . . . . . . . . . . . . . . . . . . . . . . 8

6. IC DC Voltage charts . . . . . . . . . . . . . . . . . . . . . 33

7. Circuit Description . . . . . . . . . . . . . . . . . . . . . . 36

8. Service Parts List/Recommendable Spare Parts List . . . . . . . 41
9. Mechanical Exploded View . . . . . . . . . . . . . . . . . . 49

10. Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . 55

11. Schematic Diagram . . . . . . . . . . . . . . . . . . . . . 56
Specifications

CRT 25" : A59EAK071X11 (PHILIPS)
28" : A66EAK071X11 (PHILIPS)
System PAL/SECAM-B/G, D/K, PAL-I, SECAM-L/L', NTSC-3.58/4.43(Play back)
Main Voltage 230V AC, 50Hz
Power Consumption Stand-by mode : 2.5 Watts
Normal operating mode : 25" = 75 Watts
28" = 75 Watts
Sound output 7 + 7 Watts, 10 % THD at RF 60 % mod. (1 )
Speaker 12W 8 ohm x 2 EA
Antenna 75 ohm unbalanced input
Impedance
Tuning system Frequency Synthesizer(FS) Tuning System
Tuner DT5-BF14D, EL2782-105-B
Number of 100 programs
program
Aux. Terminal 21 pin EURO-SCART jack ( AV input, TV output, RGB input )
21 pin EURO-SCART jack ( AV input, S-VHS input )
RCA type AV input jack
Headphone jack (3.5 mm )
Remote controller R-28B07 with 2 "AA" type batteries
Teletext 8 pages memory TOP & FLOF
- West option :English, German/Dutch/Flemish, French, Italian,
Spanish/Portuguese, Swedish/Finnish/Danish, Czech/Slovak
- East option : Polish, Czech/Slovak, Rumanian, Hungarian, Servo-croat,
German/Dutch/Flemish, French, Italian
- Turkish option : Turkish, English, German/Dutch/Flemish, French,
Italian, Spanish/Portuguese, Swedish/Finnish/Danish
OSD language - West : English, German, French, Italian, Spanish, Netherlands, Portuguese,
Danish, Swedish, Finnish, Norwegian
- East : Polish, Rumanian, Czech, Hungarian

1
21 PIN EURO-SCART

PIN Signal Designation Matching Value
1 Audio Out(linked with 3) 0.5Vrms,lmp<1 (RF 60% MOD)
2 Audio In(linked with 6)
3 Audio Out(linked with 1) 0.5Vrms,lmp<1 (RF 60% MOD)
4 Audio Earth
5 Blue Earth
6 Audio in (linked with 2) 0.5Vrms,lmp>10
7 Blue in 0.7Vpp 3dB ,lmp75
8 Slow(Function) Switching TV:0-2V,PERI:9.5-12V,lmp>10
9 Green Earth
10 NC
11 Green In 0.7Vpp 3dB
12 NC
13 Red Earth
14 NC
15 Red In, C In 0.7Vpp 3dB,lmp75
16 Rapid(Blanking) switching
17 Video Earth
18 Rapid Blanking Earth
19 Video Out 1Vpp 3dB,lmp75
20 Video In, Y In 1Vpp 3dB,lmp75
21 Common Earth

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

2