Panasonic AJSDX900P - 24P DVCPRO 50, Service Manual

Page: 52 / 421

MECH-11
1-16. A/C Head Tilt Confirmation
SPEC
A/Amax
≥
0.8
TEST
POINT
CUE AUDIO:
Refer to item “6. Table of Test Point for each
adjustment item.”
ADJ.
SCREW A, G (A/C Head)
SD VTR & CAM PLAY(25M mode)
VTR
MODE
HD CAM PLAY(CTL output level
confirmation mode)
NTSC: VFM3582KM SD VTR & CAM
PAL: VFM3682KM
TAPE
HD CAM VFM3782KML
M.EQ
Oscilloscope
TOOL
VFK1178A, VFK1148A (Hex Driver)
CTL output level confiramation mode setting
procedure is mentioned on item “6. Table of Test Point
for each adjustment item.”
Click this button , then go to item “6. Table of
Test Point for each adjustment item.”.
1. Playback the Alignment tape.
2. Confirm that the screw (G) and (H) are not loose.
3. Push the tension post the arrow (B) direction as
shown in following figure without moving T2 post.
And confirm that the CUE output level is within the
specification.
4. If out of specification, loosen the screw (G) and
adjust the screw (A) (refer to item “1-14 A/C Head
tilt Adjustment”.)
5. After adjustment performed, confirm the tape path
condition by following Post Limit Confirmation
procedure (item 1-12).
Figure 1-16-1
Figure 1-16-2
1-17. A/C Head Height
Confirmation
SPEC
See below
TEST
POINT
CUE AUDIO & CTL:
Refer to item “6. Table of Test Point for each
adjustment item.”
ADJ.
SCREW B, H (A/C Head)
SD VTR & CAM PLAY(25M mode)
VTR
MODE
HD CAM PLAY(CTL output level
confirmation mode)
NTSC: VFM3582KM SD VTR & CAM
PAL: VFM3682KM
TAPE
HD CAM VFM3782KML
M.EQ
Oscilloscope
TOOL
VFK1150A (Nut Driver)
VFK1190 (Hex Wrench)
CTL output level confiramation mode setting
procedure is mentioned on item “6. Table of Test Point
for each adjustment item.”
Click this button , then go to item “6. Table of
Test Point for each adjustment item.”.
<Specification of CUE and CTL output level>
Model CUE CTL
SD VTR
A = Amax
C1, C2
≥
1.8 V
SD & HD CAM A = Amax C1, C2
≥
220m V
1. Press and Lift up A/C Head lightly as indicated in
following figure, 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.
(refer to item “4-15 A/C Head Height Adjustment”.)
Figure 1-17-1
Figure 1-17-2
(Increase
tension)
B