Daewoo DV-K580NZ-T service manual Power compensation Does not operate

Page 34

TROUBLESHOOTING FLOW CHART

I.

Power compensation

	does not operate.
			NO


	When mains is unplugged,
	is 3.6V at pin 26,pin 81 of IC501?

		YES
			NO

	Is (sine) signal applied to
	Is (sine) signal applied to
	pin 42 and 43 of IC501?

		YES
			NO

	Is 5V at pin 37 of IC501?



		YES


	Check IC501.

Check C548, C523,

C547, C524.

Check X502.

Check reset circuit Of IC503.

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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 RemarkCircuit Operation REC ModeVideo Part X302 IH DLY Audio Part Block Diagram Servo Syscon PartTime Lapse Recording Method R L R L R L R LTerminal Part Alarm InputAlarm Output Panic InputSW Output Tape END OUTSeries Output Series Input Power Circuit Trouble Shooting Flow ChartChecking 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