Daewoo DV-K580NZ-T service manual Rec-Y

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ELECTRICAL ADJUSTMENT

(6) Y RECORD CURRENT

Adjustment Parts

Checking Point

Measuring Equipment

Test Tape

Input Signal

R491

TJ491

Signal Gen. Oscilloscope

Blank Tape

Color Bar

 

 

 

 

 

vCONNECTION METHOD

R491

TJ491

 

REC-Y

 

TJ302

 

 

CH-1

 

Oscilloscope

 

CH-2

 

SIGNAL

 

GENERATOR

vADJUSTMENT PROCEDURE

1)Supply the Color Bar Signal to the VIDEO IN JACK.

2)After Inserting a Rec Tape, Rec in SP MODE.

3)Connect the oscilloscope to TJ491

and trigger the scope with a compos- ite sync signal at TJ302.

4)Adjust R491 until Y-FM record current is 500 ± 10mVp-p. (Standard SYNC Tip)

TJ491

500V 10mVp-p

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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 ChartCircuit Operation REC ModeVideo Part X302 IH DLY Audio Part Servo Syscon Part Block DiagramR L R L R L R L Time Lapse Recording MethodAlarm Output Alarm InputTerminal Part Panic InputSW Output Tape END OUTSeries Output Series Input Power Circuit Trouble Shooting Flow ChartChecking 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