A/C Head Tilt Adjustment; A/C Head Height Adjustment - Panasonic AJ-SD93P/E Service Manual

3-14. A/C Head Tilt Adjustment

SPEC
Curl should not appear on tape edge.
Lower limit at T3 post
ADJ.
SCREW A, G (A/C Head)
MODE
PLAY
TAPE
Blank tape
TOOL
VFK1148A, VFK1178A (Hex Driver)
1. Play back the tape and adjust the screw (A) for
adjustment of A/C Head tilt so that the tape path
meets the above specification.
2. For adjustment, loosen the screw (G) and make
curl on tape at lower flange of T3 post by
loosening screw (A). And tighten the screw (A) to
raise the tape and fix it at the point where the curl
just disappear.
3. Tighten the Screw (G) with 10cN·m (1kgf·cm)
torque after finishing the adjustment for Screw (A).
NOTE :
1. In case of turning the screw (A) clockwise.
→ Tape goes up at T3 post.
In case of turning
counter-clockwise.
→ Tape goes down at T3 post.
2. The screw (A) adjustment should be
finished in tightening
confirm that the screw (A) isn't loose.
3. The Adjustment of Tilt, Azimuth and Height
influence each
adjustment should
alternately.
Figure 3-14-1
the screw (A)
direction. And
other. Hence those
be performed

3-15. A/C Head Height Adjustment

SPEC
CUE : A=A max
CTL : C1, C2 ≥ 1.8V
TEST
CUE AUDIO : TP4102 (RF/CUE)
POINT
CTL : TP30 (SERVO)
ADJ.
SCREW B, H (A/C Head)
MODE
25M mode PLAY
TAPE
NTSC : VFM3580KM or VFM3580KL
PAL : VFM3680KM or VFM3680KL
TOOL
VFK1150 (Nut Driver)
VFK1190 (Hex Wrench)
1. Press and Lift up A/C Head lightly (refer to figure
3-13-4), then confirm that the CTL and CUE
output level is within the specification.
2. If it is out of spec., loosen the screw H and adjust
the screw B until Cue output is maximized.
3. Confirmation of the level has to be done after the
screw (H) is tighten completely. (refer to A/C Head
Adjustment Method)
4. A/C head height adjustment should be done with
Azimuth and X Value adjustment alternately.
MECH-13
(14 to 22min)
(14 to 22min)
Figure 3-15-1
Figure 3-15-2