Daewoo DV-K580NZ-T service manual Safety&Precautions, Safety Check After Serving

Page 3

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 conform the specified values in order to verify compliance whit 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, microphone jacks, earphone jacks, etc.) isgreater 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 soldered terminals, and between terminals and surrounding metallic parts. See table below.

Rating for selected areas

AC Line Voltage

Region

Insulation

Dielectric

Clearance

Resistance

Strength

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

Europe

 

 

] 6(d)

Australia

] 10MΩ/500V DC

4kV AC 1min.

] 8(d')

200 to 240V

Latin America

 

 

(a :Power cord)

 

 

 

 

 

 

 

 

* : Class model only

 

 

 

 

NOTE

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

2

Image 3
Contents Time Lapse VCR Table of Contents Safety Check After Serving SAFETY&PRECAUTIONSSAFETY&PRECAUTIONS Front Views Function External ViewsRear Views Function AC Power CordAdjustment Procedure Electrical AdjustmentEE Level Video Circuit Adjustment MethodPlayback Y-SIGNAL Output Level Sync TIP Frequency FM Deviation Record Current REC-Y Audio Record Bias Audio Circuit Adjustment MethodNtsc SpecificationsTape Mode Tape Speed Remark Timelapse REC/PB Speed ChartREC Mode Circuit OperationVideo Part X302 IH DLY Audio Part Servo Syscon Part Block DiagramR L R L R L R L Time Lapse Recording MethodPanic Input Alarm InputAlarm Output Terminal PartTape END OUT SW OutputSeries Output Series Input Trouble Shooting Flow Chart Power CircuitChecking the Primary Circuit Checking the Secondary Circuit Troubleshooting Flow ChartSERVO-SYSCON Circuit Noise appears on Screen on the whole Auto-stop during Playback Power CIRCUIT? YES Capstan M/T loading stops REC Mode Cassette is not inserted Power compensation Does not operate Video Circuit EE Mode N.GREC Signal N.G PB-Y Signal N.G PB-C Signal N.G Audio Circuit Troubleshooting of PB ModeTroubleshooting of REC Mode Troubleshooting of EE Mode COM Port Description COM Port Description OUT OSD Data IC Motor Drive BA6209 IC504 Voltage ChartIC Relay A9W-K RL902 IC Relay A9W-K RL901IC Video LA7391A IC301 IC Video SW LA7152 IC303 Transister IC Video AMP NJM2267 IC002Voltage Chart Connection Diagram Circuit DiagramPower Circuit Diagram Syscon Circuit Diagram Video Circuit Diagram Headamp Circuit Diagram OSD Circuit Diagram C Separation Circuit Diagram Audio Circuit Diagram Logic Circuit Diagram Terminal Circuit Diagram PCB Main Components Location Guide on PCB Bottom ViewPCB Union Panel Front ASS’Y DisassemblySET Total ASS’Y Packing ASS’Y DEL DV-K580NZ-T Electrical Parts ListElectrical Parts List SPG T SUB Brake Coil OSC DEO-010BIAS Diode Bridge R205 R413 Mylar Clip Fuse Semi Fixed Diode Zener UZ-5.6BSC PCB Logic AS DV-K580NZ-T SW Tact Diode EG01C Mail G7F00E@web.dwe.co.kr TEL FAX