Sanyo MCD-Z250F Service Manual

Also see for MCD-Z250F: Service manual Service manual Instruction manual Service manual

Contents

TAPE ADJUSTMENTSa. Adjusting AzimuthBe sure to clean the heads before attempting to make any adjustment.Be sure both channel’s waveform are the same for the phase matching.Be sure both channels (1 and 2) are the same level using a dual-channel oscilloscope.After completion of the adjustment, apply the threadlock (TB-1401 B) to the azimuth adjustment screws to fix them securely.(1)(2)(3)(4)Load an azimuth adjustment test tape (VT-T-703 etc., 10 kHz)in tape deck.Press the PLAY button.Use a cross-tip screwdriver to turn the screw for azimuthadjustment so that the left and right outputs are maximized.Press the STOP button.b. Replacing the HeadHEADAZIMUl After replacing the head, demagnetize the head by using adegausser.RIP HEADl All wiring should be returned to the original position after work iscompleted.c. Replacing the Motor0Pld. Adjusting Tape Speedl Use a plastic screwdriver for adjustment.(1) Inset the test tape (Ml-f-1 11 N etc., 3000 Hz).(2) Press the PLAY button.(3) Use a flat-tip screwdriierto turn the SVR to adjust so that the frequencycounter becomes 3000 Hz.e. Checking the Mechanism Torques. Clean the head, capstan and pinch roller before making any measurement.MeasurementCassette formeasurementPLAYFSWD!?EWTake-up torquePLAY : TW-2111 AF.FWD I REW : TN223130-60 gr.cm55-l 20 gr.cm66-120 gr.cmBack tension Tape tensionPLAY:TW-2111A Drive-power cassetteTW-24121.5-4.5 gr.cm 60 gr or more- -_- -