Samsung CXJ1331/TUCX Service Manual

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Alignments and Adjustments (VCR)Samsung Electronics 3-3Fig. 3-7 Test Point Position (Main PCB : Parts)3-2-(B) A/C HEAD TILT ADJUSTMENT1. Playback a blank tape and observe theposition of the tape at the lower flange of tapeguide.2. Confirm that there is no curl or wrinkle at thelower flange of tape guide as shown in(Fig. 3-6).3. If a curl or wrinkle of the tape occurs, slightlyturn the screw (A) tilt adjust on the ACE headass’y.4. Reconfirm the ACE head height.3-2-2(D) A/C HEAD POSITION (X-POINT) ADJUSTMENT1. Load alignment tape (Mono Scope) and playback a 7KHz signal (SP Mode).2. Connect Ch1 scope probe to JM119 (A-out),Ch2 scope probe to JM113-H’D SW Adjustsync to Channel 1.3. 4HD Model : Set the control pulse to 6.5 msecusing the Fine tracking buttons +/- on theremote control (see Fig. 3-8, 3-9).2HD Model : 2.5msec (see Fig. 3-8, 3-9).4. Connect Ch1 scope probe to JM114-ENV.5. Insert the adjusting driver into the X-positionadjusting gear and adjust the driver formaximum envelope waveform.Note :Do not adjust the X-point using excessiveforce. After turning the X-point adjustingscrew (D) counterclockwise a little, performthe adjustment and then tighten the screw(See Fig. 3-4).3-2-2(C) AUDIO AZIMUTH ADJUSTMENT1. Load alignment tape (Mono Scope) and playback a 7KHz signal.2. Connect Ch1 scope probe to JM119(A-OUT).3. Adjust A/C head azimuth adjustment screw Bfor maximum audio output level (see Fig. 3-4).Fig. 3-6 Tape Guide CheckWRINKLE(BAD) (GOOD)(A) (B)