Daewoo DV3K653NZ-T Manual de usuario

Service Manual

S/M No.:VK653NTEF0

Jun.2002

DAEWOO ELECTRONICS CO., LTD.

http : //svc.dwe.co.kr

TIME LAPSE VCR

Model:DV3K653NZ-T

✔

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

SAFETY&PRECAUTIONS ............................................................................................... 2

EXTERNAL VIEWS ........................................................................................................ 4

FRONT VIEWS FUNCTION ...................................................................................................................4

REAR VIEWS FUNCTION .....................................................................................................................5

ELECTRICAL ADJUSTMENT ........................................................................................... 6

SPECIFICATIONS ....................................................................................................... 7

TIMELAPSE REC/PB SPEED CHART

................................................................................ 9

CIRCUIT OPERATION .................................................................................................. 10

RS-232C .................................................................................................................... 15

TROUBLE SHOOTING FLOW CHART ............................................................................. 27

POWER CIRCUIT ................................................................................................................................27

SERVO-SYSCON CIRCUIT ...................................................................................................................29

u-COM PORT DESCRIPTION ....................................................................................... 38

VOLTAGE CHART ....................................................................................................... 41

CIRCUIT DIAGRAM ..................................................................................................... 45

CONNECTION DIAGRAM ..................................................................................................................45

POWER CIRCUIT DIAGRAM ................................................................................................................46

SYSCON CIRCUIT DIAGRAM ..............................................................................................................47

A/V CIRCUIT DIAGRAM ......................................................................................................................48

OSD CIRCUIT DIAGRAM ....................................................................................................................49

LOGIC CIRCUIT DIAGRAM .................................................................................................................50

TERMINAL CIRCUIT DIAGRAM ............................................................................................................51

COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ........................................... 52

PCB MAIN .........................................................................................................................................52

PCB UNION .......................................................................................................................................53

PCB JACK .........................................................................................................................................54

DISASSEMBLY ............................................................................................................. 55

PANEL FRONT ASS’Y ...........................................................................................................................55

SET TOTAL ASS’Y .................................................................................................................................56

PACKING ASS’Y .................................................................................................................................57

ELECTRICAL PARTS LIST ............................................................................................... 58

SAFETY&PRECAUTIONS

SAFETY CHECK AFTER SERVING

Examine the area surrounding the repaired location for damage or deterioration. Observe that screw,

parts and wires have been returned to original positions. Afterwards, perform the following tests and con-

form the specified values in order to verify compliance with safety standards.

1. Insulation resistance test

Confirm the specified insulation resistance between power cord plug prong and externally exposed

parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, micro-

phone jacks, earphone jacks, etc.)

greater than values given in table 1 below.

2. Dielectric strengthen test

Confirm specified dielectric strengthen between

power cord plug prongs and exposed accessible parts

of the set (RF terminals, antenna terminals, video and

audio input output terminals, microphone jack, ear

phone jacks, etc.) is greater than values given table 1.

3. Clearance distance

When replacing primary circuit component, confirm specified clearance distance (d), (d’) between sol-

dered terminals, and between terminals and surrounding metallic parts. See table below.

Rating for selected areas

* : Class model only

AC Line Voltage Region Insulation

Resistance Dielectric

Strength Clearance

Distance(d),(d)

100V Japan ] 1MΩ/500V DC 1kV AC 1min. ] 3

110 to 130V USA & Canada -900V AC 1min. ] 3.2

* 110 to 130V

200 to 240V

Europe

Australia

Latin America ] 10MΩ/500V DC 4kV AC 1min. ]6(d)

]8(d')

(a :Power cord)

This table is unofficial and for reference only. Be sure to confirm the precise values for your particular

NOTE

SAFETY&PRECAUTIONS

4. Leakage current test

Confirm specified or lower leakage current between

B(earth ground, power cord plug prongs) and externally

exposed accessible parts (RF terminals, antenna termi-

nals, video and audio input output terminals, microphone

jacks, earphone jacks, etc.)

Measuring method:(Power ON) Insert load Z between

B(earth ground, power cord plug prongs) and exposed

accessible parts. Use on AC voltmeter to measure across both terminals of load Z. See figure2 and

following table.

Leakage current ratings for selected are as

AC Line Voltage Region Load Z Leakage Current(

)Clearance Distance(d),(d’)

100V Japan 1kΩi*1mArms Exposed accessible parts

110 to 130V USA &Can-

ada 15kµF

1kΩi*0.5mArms Exposed accessible parts

110 to 130V

200 to 240V

Europe

Australia

Latin America

2kΩi*0.7mA peak

i*2mAdc Antenna earth terminals

50kΩi*0.7mA peak

i*1mAdc Other terminals

This table is unofficial and for reference only. Be sure to confirm the precise values

for your particular country and locality.

NOTE

1. FRONT VIEWS FUNCTION

EXTERNAL VIEWS

1) STOP button

2) REC button

3) REC CHECK button

4) EJECT button

5) CASSETTE LOADING DOOR

6) DISPLAY PANEL

7) PLAY button

8) REW button

9) FF button

10) PAUSE/STILL button

11) REMOTE SENSOR

12) VIDEO NOISE FILTER SWITCH

13) SET LOCK SWITCH

14) RESET button

15) MENU button

16) SHIFT( ) / TRACKING (-) button

17) SHIFT( ) / TRACKING (-) button

18) REC/PLAY SPEED (-) button (SET - button)

19) REC/PLAY SPEED (+) button (SET + button)

20) AUDIO ON button

21) DISPLAY button

22) STANDBY/ON button

23) COUNTER button

24) CLEAR button

EXTERNAL VIEWS

2. REAR VIEWS FUNCTION

1)AC POWER CORD

2)WARNING OUT terminal

3)SERIES IN terminal

4)COM terminal

5)SERIES OUT terminal

6)SW OUT terminal

7)VIDEO OUT jack

8)VIDEO IN jack

9)AUDIO IN jack

10)TAPE END terminal

11)PANIC IN terminal

12)COM terminal

13)ALARM OUT terminal

14)ALARM IN terminal

15)MIC (microphone input) jack

16)AUDIO OUT jack

17)RS232C

ELECTRICAL ADJUSTMENT

1. SERVO/SYSCON CIRCUIT ADJUSTMENT METHOD

VIDEO HEAD SWITCHING POSITION

CONNECTION METHOD

ADJUSTMENT PROCEDURE

1) Play back the test tape.

2) Set the oscilloscope in the chop mode connect the CH1 to SW pulse(PT501 (r)PIN), the CH2 to

TJ396(video out) with CH1 triggering.

3) Adjust R595 for the positive trigger until 6.5 ±0.5H cycle before the vertical SYNC pulse.

Adjustment Part Checking Point Measuring Equipment Mode Test Tape

R595 TJ396

PT501 PIN3 OSCILLOSCOPE Play DN-1 (Color Bar)

TJ396

CH-1

Oscilloscope

CH-2

PT501 R595

CH1 SW PULSE

(PT501 3PIN)

VIDEO OUT

(TJ396)

Vertical SYNC Signal

6.5H 0.5H

Trigger Position

SPECIFICATIONS-I

40Hours Real Time Record Mode with T-160 Tape (20 field-per second with T-160 Tape)

8000Hour Lifetime guarantee Ball Bearing CAPSTAN MOTOR Mounting

DIGITAL SHUTTLE function( REVERSE PLAY & REVERSE SLOW)

RS-232C COMMUNICATION PC INTERFACE

Up-to 1280 Hours Recording (T-160 Tape)

Super Clear Picture

- Over 350 Lines Horizontal Resolution(B/W)

- Over 300 Lines Horizontal Resolution(Color)

Various Emergency Record Mode

DLC Coating Drum for Long-Time Record

Various Record Search

Alarm Search

Index Search

Zero Search

Simple Controls by Menu Selection Daily timer program, Weekly timer program, Terminal

input setting, Characters Location and Text input

function.

Self-Diagnosis E-1, E-2, E-3, E-4

Compact size for installation or moving.

SPECIFICATIONS-II

Video Signal system NTSC

REC/PB System Helical scanning system

Tape Width 12.65mm (1/2 inch), VHS

Record system of Luminance Signal Frequency modulation record

Record system of Color Signal Down converted subcarrier phase shift system

Tape Speed (T-120) 2H : 33.35mm/s (SP), 6H : 11.12mm/s(EP),

18H : 3.71mm/s, 36H : 1.85mm/s

Record/Play Time (T-120) SP:2/48/72/96/120/168/240/360/480/720/960H,

EP:6H/18H/30H (PLAY)

FF/REW Time (T-120) Within 3 minutes

Video Signal Input 1.0Vp-p 75Ω, unbalanced

Video Signal Output 1.0Vp-p 75Ω, unbalanced

Luminance Signal to Noise ratio SP : Minimum 45dB, EP : Minimum 41dB

Horizontal resolution Mimimum 350 Lines (B/W), Minimum 300 Lines (Color)

Audio Signal Input Line Input -8.8dBm (1KHz), 47KΩminimum

Audio Signal Output Line Output -7.8dBm (1KHz), 1KΩmaximum

Audio Signal to Noise Ratio (A.Weighted) SP : 42dB minimum VHS, EP : 40dB minimum VHS

Audio Frequency Range SP : 0+3, -6dB [100Hz~10KHz] VHS, EP : 0+3, -6dB [100Hz~5KHz] VHS

Distortion SP : 4% maximum VHS, EP : 5% maximum VHS

WOW Flutter SP : 0.3% maximum VHS, EP : 0.4% maximum VHS

Alarm input DC 4~5V (open), DC 0~0.8V (closed) / 5.7kΩ

Alarm output DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Panic input DC 4~5V (open), DC 0~0.8V (closed) / 5.7kΩ

End output DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Warning output DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Series input DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Series output DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Switch output DC 4~5V (High), DC 0~0.8V (Low) / 5.7kΩ

Common GND

Microphone Input -60dBs 3.5mm mini Jack 10k ohm, unbalanced

Accuracy of Timer Within 2 seconds per day

Compensate Time for Power Fail About 1 Month

Power Supply AC 90~240V(free voltage), 60Hz

Power Consumption 17W

Operation Temperature

°°

41 F ~ 104 F(Humidity : under 80%)

Storage Temperature

Dimension (W x H x D) 360 x 90 x 289

Weight Approximate 4.0 Kg (NET)

- 4 F ~ 140 F

° °

TIMELAPSE REC/PB SPEED CHART

TAPE MODE TAPE SPEED REMARK

REC

MODE

T-120

SP 2H 48H 72H 96H 120H 168H 240H 360H 480H 720H 960H

EP 6H 18H 30H

T-160

SP 2.7H 64H 72H 128H 160H 224H 320H 480H 640H 960H 1280H

EP 8H 24H 40H

PLAY

MODE

T-120

SP 2H 48H 72H 96H 120H 168H 240H 360H 480H 720H 960H

EP 6H 18H 30H

T-160

SP 2.7H 64H 72H 128H 160H 224H 320H 480H 640H 960H 1280H

EP 8H 24H 40H

AUDIO POSSIBLE NOT POSSIBLE

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