Daewoo DV-K580NZ-T service manual Record Current

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ELECTRICAL ADJUSTMENT

(5) C RECORD CURRENT

Adjustment Parts	Check Point	Measuring Equipment	Test Tape	Input Signal
R492	TJ491	Signal Gen. Oscilloscope	Blank Tape	Color Bar

vCONNECTION METHOD

R492
R491	TJ491
	TJ491
REC-C
TJ302
	CH-1
	Oscilloscope
	CH-2
	SIGNAL
	GENERATOR

vADJUSTMENT PROCEDURE

1)Supply the Color Bar Signal to the VIDEO IN JACK, and set the VCR to the REC mode.

2)Connect the oscilloscope to TJ491 and trigger the scope with a composite sync signal at TJ302.

3)Adjust R491 until Y-FM record current is minimized.

4) Adjust R492 until color record current is 130 ± 10mVp-p.	Burst

TJ491

130 10mVp-p

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Contents Time Lapse VCR Table of Contents SAFETY&PRECAUTIONS Safety Check After ServingSAFETY&PRECAUTIONS External Views Front Views FunctionAC Power Cord Rear Views FunctionElectrical Adjustment Adjustment ProcedureVideo Circuit Adjustment Method EE LevelPlayback Y-SIGNAL Output Level Sync TIP Frequency FM Deviation Record Current REC-Y Audio Circuit Adjustment Method Audio Record BiasSpecifications NtscTimelapse REC/PB Speed Chart Tape Mode Tape Speed RemarkREC Mode Circuit OperationVideo Part X302 IH DLY Audio Part Block Diagram Servo Syscon PartTime Lapse Recording Method R L R L R L R LAlarm Input Alarm OutputTerminal Part Panic InputTape END OUT SW OutputSeries Output Series Input Trouble Shooting Flow Chart Power CircuitChecking the Primary Circuit Troubleshooting Flow Chart Checking the Secondary CircuitSERVO-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 EE Mode N.G Video CircuitREC Signal N.G PB-Y Signal N.G PB-C Signal N.G Troubleshooting of PB Mode Audio CircuitTroubleshooting of REC Mode Troubleshooting of EE Mode COM Port Description COM Port Description OUT OSD Data Voltage Chart IC Motor Drive BA6209 IC504IC Relay A9W-K RL901 IC Relay A9W-K RL902IC Video LA7391A IC301 IC Video SW LA7152 IC303 IC Video AMP NJM2267 IC002 TransisterVoltage Chart Circuit Diagram Connection 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 Components Location Guide on PCB Bottom View PCB MainPCB Union Disassembly Panel Front ASS’YSET Total ASS’Y Packing ASS’Y Electrical Parts List DEL DV-K580NZ-TElectrical 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