Daewoo DV-T8T2NZ-QB/M Bedienungsanleitung

Service Manual

S/M No. :VT8T2NTEF0

Sep.2000

DAEWOO ELECTRONICS CO., LTD.

http ://svc.dwe.co.kr

Video Cassette Recorder

Model:

DV-T8T2NZ-QB/M

DV-T5T2NZ-QB/M

ALLT-MECHA (Hi-Fi/MONO)

123

456

789

DV-T5T2

DV-T8T2

VR-F2PB

✔

Caution

: In this Manual, some parts can be changed for improving, their

performance without notice in the parts list. So, if you need the

latest parts information,please refer to PPL(Parts Price List) in

Service Information Center (http://svc.dwe.co.kr).

TABLE OF CONTENTS

SPECIFICATION

.......................................................................................................... 2

VOLTAGE CHART ........................................................................................................ 3

CIRCUIT DIAGRAM...................................................................................................... 6

POWER SUPPLY SCHEMATIC DIAGRAM ............................................................................................... 6

SERVO/SYSCON/CBC CIRCUIT DIAGRAM(T-DECK)............................................................................... 7

VIDEO/AUDIO SCHEMATIC DIAGRAM (2/4 HEAD)................................................................................ 8

VIDEO/AUDIO SCHEMATIC DIAGRAM (Hi-Fi) ........................................................................................ 9

PIF SCHEMATIC DIAGRAM (2/4 HEAD) ................................................................................................ 10

PIF&MPX SCHEMATIC DIAGRAM (Hi-Fi) ............................................................................................. 11

WAVEFORMS ............................................................................................................. 12

INSTRUMENT DISASSEMBLY .......................................................................................... 16

ELECTRICAL PARTS LIST ............................................................................................... 21

APPENDIX

TROUBLESHOOTING GUIDES ....................................................................................... 1

POWER CIRCUIT ................................................................................................................................ 1

SERVO / SYSCON / LOGIC CIRCUIT .................................................................................................... 3

VIDEO CIRCUIT .................................................................................................................................10

AUDIO CIRCUIT (Hi-Fi MODEL) .......................................................................................................... 14

AUDIO CIRCUIT (2 / 4 HEAD MODEL) ................................................................................................. 19

SPECIFICATION

Note: Specifications are subject to change without notice.

Power Input 100-240 Volts AC 60Hz(Free voltage)

DV-T5T2NZ-QB/M DV-T8T2NZ-QB/M

Power Consumption 17 Watts (4-head Hi-Fi)

17 Watts (4-head)

Operating Temperature 5 degree C to 40 degree C (41 degree F to 104 degree F)

Storage Temperature -30 degree C to 65 degree C (-22 degree F to 149 degree F)

Weight 6.6 Ibs : Net (8.8 Ibs : Gross)

Dimensions 14.2 X 3.6 X9.4 Inches

Recording System

4-head Hi Fi: Four video record/playback heads Rotary helical scan

Luma: FM recording

Chroma: converted subcarrier phase shifted recording

Two audio record/playback heads

Rotary helical scan, 2 channels FM recording

4-head: Four video record/playback heads

Rotary helical scan

Luma: FM recording

Chroma: converted subcarrier phase shifted recording

VideoSignal EIA standard; NTSC color

Antenna 75 ohm input impedance

Video Signal Level 1Vp-p (140 IRE standard)

Audio Input Impedance More than 47K ohm

Audio Output Impedance Less than 1.5K ohm

Tape Speed SP: 33.35mm/sec.

SLP: 11.13mm/sec

Maximum Recording Time T-60: 3 hours/ EP (SLP) mode

T120: 6 hours/ EP (SLP) mode

Fast Forward/Rewind Time 3 minutes (T-120 tape)

Tuning System Auto Program/Cable Compatible/Frequency Synthesis (FS)

VOLTAGE CHART

A/V CHIP IC (IC301, LA71071M)

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

12.3 2.38 26 2.3 2.57 51 0.82 0.8 76 2.37 2.37

22.3 2.38 27 0 0 52 2.0 2.0 77 1.0 0

32.47 2.4 28 1.6 1.86 53 4.3 4.9 78 2.37 2.4

42.47 2.4 29 1.0 1.0 54 4.9 5.0 79 2.39 2.37

52.47 2.4 30 0 0 55 5.0 2.58 80 2.37 0

62.47 2.41 31 0 0 56 5.0 5.2 81 00.8

72.5 2.41 32 0 0 57 4.9 4.97 82 0.7 0.8

8 0 0 33 0.3 0.3 58 3.58 3.3 83 0.78 0.8

9 0 0 34 0.3 0.3 59 4.9 4.9 84 0.78 0.8

10 5.0 5.0 35 2.0 1.75 60 3.39 3.8 85 0.79 0.8

11 4.9 036 0.9 0.97 61 3.8 3.88 86 0 0

12 0 0 37 1.45 1.56 62 2.5 2.59 87 5.2 5.2

13 0.37 0.3 38 2.58 2.55 63 2.1 2.0 88 4.4 1.8

14 0.36 0.35 39 3.3 3.33 64 2.2 2.2 89 4.39 1.85

15 0 0 40 2.58 2.56 65 3.98 3.96 90 4.39 1.85

16 4.9 0.1 41 4.8 4.8 66 2.0 1.56 91 4.4 1.85

17 4.94 042 2.58 2.58 67 0 0 92 1.53 0.4

18 0 0 43 2.79 2.54 68 2.37 2.38 93 0.67 2.33

19 0 0 44 2.88 2.99 69 2.0 2.0 94 0.83 0

MOTOR DRIVE IC

(IC604, BA6209/KA3082/DBL2084N)

PIN NO. REC PB

1 0 0

20.55 0

30.9 0.88

46.0 6.0

50.01 0.01

60.01 0.01

713.47 13.4

813.48 13.4

90.91 0.91

10 0.5 0.51

H-FI IC (IC201, LA72637M)

20 1.53 1.5 45 3.0 3.0 70 1.66 1.49 95 0 0

21 5.1 5.0 46 2.58 2.53 71 0 0 96 2.4 2.4

22 1.0 1.0 47 2.38 2.38 72 2.1 2.17 97 0 0

23 1.33 1.3 48 0 0 73 4.0 4.0 98 0 0

24 2.36 1.4 49 1.78 1.79 74 2.0 1.9 99 3.2 0.12

25 3.0 3.0 50 0 0 75 5.1 5.1 100 3.88 2.37

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

12.4 2.43 17 0.7 0.7 33 2.5 2.5 49 3.49 3.5

2 0 0 18 2.49 2.54 34 0.7 0.7 50 3.0 3.1

32.4 2.43 19 2.49 2.53 35 02.5 51 4.99 5.0

4 0 0 20 2.55 0.4 36 0 0 52 3.3 3.38

52.2 2.24 21 2.53 037 1.64 1.6 53 5.83 5.95

62.49 2.5 22 2.54 0.68 38 0 0 54 2.3 2.34

72.0 2.0 23 05.0 39 0 0 0 55 0 0

80.3 024 05.0 40 4.9 5.0 56 0 0

9 0 0 25 4.9 5.0 41 0 0 57 5.9 6.0

10 0 0 2 26 2.5 042 4.8 4.8 58 12.6 12.6

11 0 0 27 2.8 2.8 43 4.7 4.7 59 5.9 5.9

12 2.0 2.0 28 4.2 4.2 44 2.33 2.3 60 1.2 1.2

13 2.38 2.38 29 5.0 1.8 45 0 0 61 2.49 2.52

14 0 0 30 01.8 46 3.5 3.5 62 2.43 2.46

15 0 0 31 1.0 1.89 47 3.1 3.2 63 2.37 2.38

16 0 0 32 2.49 2.5 48 2.1 2.1 64 0.39 0.4

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

VOLTAGE CHART

TMI (RF101, LGTMI-SLQ1-S)

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

PIN NO.

REC PB

1 0 0 6 3.7 3.7 11 0 0 16 0 0

2 0 4.4 7 0 0 12 4.9 5.0 17 2.3 2.38

35.1 5.1 4 8 0 0 13 0 0 18 0.1 0.2

44.65 4.3 94.8 4.8 14 32.8 32.75 19 1.68 1.7

51.41 1.41 10 4.7 4.74 15 0 0 20 1.58 1.5

VOLTAGE CHART

RESET IC (IC602,BMR-0301G)

REGULATOR IC

(IC802, KA431AZ)

PIN NO.

REC PB

15.1 5.1

200

35.0 5.0

PIN NO.

REC PB

12.44 2.44

200

34.5 4.5

CIRCUIT DIAGRAM

1. POWER SUPPLY SCHEMATIC DIAGRAM

CIRCUIT DIAGRAM

2. SERVO/SYSCON/CEC CIRCUIT DIAGRAM(T-DECK)

CIRCUIT DIAGRAM

3. VIDEO / AUDIO SCHEMATIC DIAGRAM ( 4 HEAD )

CIRCUIT DIAGRAM

4. VIDEO / AUDIO SCHEMATIC DIAGRAM ( HI - FI )

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