Toshiba MV13K1 Service Manual

Also see for MV13K1: Owner's manual Owner's manual

Contents

MECHANICAL ADJUSTMENTS2-3:2-2:When the Tape Running Mechanism does not work well,adjust the following items.CONFIRMATION AND ADJUSTMENT OF AUDIO/CONTROL HEAD1.2.3.4.Playback the Alignment Tape.Confirm that the reflected picture of stamp mark isappeared on the tape prior to P4 Post as shown in Fig.2-2-A.a)b)Turn the screw 2 to set the audio level to maximum.Confirm that the bottom of the Audio/ Control Head andthe bottom of the tape is shown in Fig. 2-2-C.c)TAPE RUNNING ADJUSTMENT(X VALUE ADJUSTMENT)Confirm and adjust the height of the Reel Disk.(Refer to item 1-1)Confirm and adjust the position of the Tension Post.(Refer to item 1-2)Adjust the Guide Roller. (Refer to item 2-1)Confirm and adjust the Audio/Control Head.(Refer to item 2-2)Connect CH-1 of the oscilloscope to TP4001, CH-2 toTP1002 and CH-3 to HOT side of Audio Out Jack.Playback the Alignment Tape.Press and hold the TRACKING-AUTO button on theremote control more than 2 seconds to set tracking tocenter.Set the X Value adjustment driver (JG153) to the 4 ofFig. 2-2-B. Adjust X value so that the envelope waveformoutput becomes maximum. Check if the relation betweenAudio and Envelope waveform becomes (1) or (2) of Fig.2-1-A.1.2.3.4.5.6.7.8.When the reflected picture is distorted, turn the screw1 clockwise until the distortion is disappeared.When the reflected picture is not distorted, turn thescrew 1 counterclockwise until little distortion isappeared, then adjust the a).When the height is not correct, turn the screw 3 toadjust the height. Then, adjust the 1~3 again.Reflected picture ofStamp MarkStamp MarkAudio/Control HeadP4 PostFig. 2-2-AAudio/Control Head132Fig. 2-2-BTapeAudio/Control HeadFig. 2-2-C0.25±0.05mm4