Daewoo K3050MECHA service manual Drum Entrance /EXIT See -8,5-9

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H. DRUM ENTRANCE /EXIT (See Fig. 5-8,5-9)

		S/W PULSE TEST PIN	PATH ADJ. FIXTURE
	TEST POINTS	S/W PULSE TEST PIN	PATH ADJ. FIXTURE

		ENVELOPE TEST PIN	PATH ADJ. FIXTURE
		ENVELOPE TEST PIN	PATH ADJ. FIXTURE

	MEASURING EQUIPMENT	OSCILLOSCOPE

	ADJUSTMENT	VR CONTROL	PATH ADJ. FIXTURE

		S/T GUIDE ROLLER	TAPE TRANSPORTING SYSTEM
		S/T GUIDE ROLLER	TAPE TRANSPORTING SYSTEM

a. Connect the PATH ADJ. FIXTURE to PT01 the MAIN CIRCUIT BOARD. b. Play back the ALIGNMENT TAPE (COLOR BAR SIGNAL).

c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the PATH ADJ. FIXTURE. d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the PATH ADJ. FIXTURE.

e. When turning the VR CONTROL of the PATH ADJ. FIXTURE clockwise or counter-clockwisw, affirm that the envelope thickness changes uniformly.

f. If the envelope is not uniform and regular, adjust the S/T GUIDE ROLLER.

DRUM ENTRANCE

DRUM EXIT
Fig. 5-8 FINE TUNING OF THE ENVELOPE AT THE	Fig.5-9 FINE TUNING OF THE ENVELOPE AT THE
DRUM ENTRANCE/EXIT (I)	DRUM ENTRANCE/EXIT (II)

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Contents VCR Mechanism Unit Contents 1CHARACTERISTICOFTHEK30-DECKMECHANISM Descriptionofthemechanism2WIREDIAGRAM Wire DiagramConnector PIN Arrangement Assemblingdiagram Assembling Diagram of Deck Assy TOP ViewBottom View Parts Location of Front Loading Assy A. TOP View Front View Periodic Maintenance and Service Schedule PeriodicmaintenanceandservicescheduleCleaning and Lubrication Service Schedule for the Major Parts Name Periodic Service TimeJigsandtools List of Jigs and Tools Items Model RemarksSketch of Jigs and Tools Disassembly and Replacement Front Loading Assy Removal See FigDisassemblyofthefrontloadingassy SeeFig.3-2~3-6 Remove one screw holding the Prism Link L. Fig Insert Points TOP Plate DRUMASSY/EARTHBRACKETASSYREMOVALSeeFig.3-7REELBELT,LOADINGRACKASSY,LOADINGASSY,S/TSLANTPOLEASSY Pinchlever A/CHEADASSYREMOVALSeeFig.3-10L/CBRACKETASSYREMOVALSeeFig.3-11 TOTALASSYREMOVALSee -11CAMGEAR,RELAYLEVERANDF/LRACKREMOVALSeeFig.3-11 S/TMAIN&SUBBRAKEASSYREMOVALSeeFig.3-14TENSIONBANDASSYREMOVALSeeFig.3-15,3-16 CAPSTANMOTORREMOVALSeeFig.3-18 IDLERPLATETOTALASSY&S/TREELTABLEREMOVALSeeFig.3-19FEHEADREMOVALSeeFig.3-20 REELGEARTOTALASSY&CONNECTPLATEREMOVALFig.3-21Mechanicaladjustment MECHANICALADJUSTMENTSeeFig.4-1~4-5Triangle Marks Must Meet Each Other Page BACKTENSIONMEASUREMENTSeeFig.4-6~4-7 Datum Hole TapeTensionpole Positionadjustment MechanicalmodeoperatingthevcrwithoutacassettetapeAdjustmentoftapetransportingsystem Adjustment of the S/T Guide Roller Adjustment of the A/C Head Assy Tilt Adjustment Position Adjustment Playback Phase Adjustment See Fig Linearity Adjustment Drum Entrance /EXIT See -8,5-9 Review ¤APLAY See Fig Audio Output A/C Head Tilt & Height Adjustment Position See Fig Exploded View and Parts List Exploded View of Deck Assy TOP ViewExplodedviewofdeckassybottomview EXPLODEDVIEWOFF/LASSY D0040 Parts List of Deck Total Assy LOC Stock no Part Name Description NtscLOC Stock no Part Name Description Secam Parts List of Drum Price ASS’Y Parts List of Drum Total ASS’Y LOC Stock no Part Name Description Drum ASLOC Stock no Part Name Description Mail G7F00E@web.dwe.co.kr TEL FAX