Toshiba M-V19H01 Service Manual page 115

5-2-(B) A/C HEAD TILT ADJUSTMENT
1. Play back a T-160 tape and observe how the
tape runs at the lower flange of the tape
guide.
2. Make sure that no tape wrinkle or curl occurs
at the flange of the tape guide (see Fig. 5-6).
3. If any tape curl or wrinkle occurs, turn the
A/C head Tilt adjustment screw C until the
curl or wrinkle disappears (see Fig. 5-6).
4. Reconfirm the A/C head height.
Fig. 5-6 Tape Guide Check
5-2-2(C) AUDIO AZIMUTH ADJUSTMENT
1. Run a tape Ò lion patternÓ and play back a
7KHz signal.
2. Connect Ch1 scope probe to EYM04 (A-OUT).
3. Adjust A/C head azimuth adjustment screw B
for maximum audio output (see Fig. 5-4).
Alignments and Adjustments (Mechanical)
5-2-2(D) A/C HEAD POSITION (X-POINT) ADJUSTMENT
1. Start a tape Ò lion patternÓ and play back a
7KHz signal.
2. Connect Ch1 scope probe to EYM04 (A-out),
Ch2 scope probe to EYM03-HÕD SW Adjust
sync to Channel 1.
3. Set the control pulse to 6.5 msec using the
Fine tracking buttons +/- on the remote
control (see Fig. 5-8, 5-9).
4. Connect Ch1 scope probe to EYM05-ENV.
5. Insert the adjusting drive (+) into the X-
position adjusting gear and adjust the driver
for maximum envelope waveform.
Note :
Do not adjust the X-point using excessive
force. After turning the X-point adjusting
screw (D) counterclockwise a little, perform
the adjustment and then tighten the screw.
(See Fig. 5-4)
Fig. 5-7 Test Point Position (Main PCB : Parts)
5-3