Ff, Rew Mode Tape Path Limit Confirmation; Screw Lock Tight Of A/C Head And T3, T4 Post; Confirmation Of Tape Damage For Long Tape Playback (Sd Vtr Only) - Panasonic AJ-SDX900P Service Manual

1-26. FF, REW mode Tape Path
Limit Confirmation
SPEC
Each post limit shown in below figure
(Refer to Table 1-25 and Figure 1-26)
VTR MODE
FF, REW
TAPE SD NTSC: VFM3580KM or Blank tape
PAL: VFM3580KM or Blank tape
HD VFM3782KML or Blank tape
Tape Limit (Refer to figure 1-25)
Post Name
A
S5 Post OK
S4 Post
NG
(Tension Post)
S1 Post OK
T1 Post OK
T3 Post OK
T4 Post OK
Table 1-26
1. Place unit into FF and REW mode and confirm the
each post limits is within the specification.
2. If out of specification, adjust the post height by
following the each adjustment procedure (Refer to
Table 1-22 on item 1-22)

1-28. Confirmation of Tape Damage for Long Tape Playback (SD VTR only)

<Confirmation procedure>
Item
Tape Damage !
Tape Damage "
NOTE: Please use to recorded tape, which is recorded by 50M mode for this confirmation.
1. Place unit into above indicated confirmation mode.
2. Confirm that the t
ape damage does not occurred on tape at lower limit of T3 and T4 post.
3. If tape damage occurred, adjust T4 post height. (refer to item "1-20. REV Tape Path Confirmation and
Adjustment")
B C D E
OK OK NG NG
OK OK NG NG
NG NG NG NG
OK OK NG NG
OK OK NG NG
OK OK NG NG
Confirmation mode
PLAY
X 0.5 speed (step slow)
<Tape>
Long time L cassette (AJ-5P93LP : recorded tape)
Tape beginning portion
SHTL
Repeat operation FWD←→REV mode
(maximum speed at Pinch ON condition)
<Tape>
Long time L cassette (AJ-5P93LP : recorded tape)
Tape end portion
1-27. Screw Lock Tight of A/C Head
and T3, T4 Post
<Screw Lock Tight of A/C Head>
Lock Tight Grew
Quantity
1. Fix the screw by the Lock Tight Grew after A/C
Head Adjustment as shown in figure below.
2. Melt the grew before adjust each screws.
F
NG
NG
NG
NG
NG
NG
<Screw Lock Tight of T3 and T4 Post>
Lock Tight Grew
Quantity
1. Fix the Nut by the Lock Tight Grew after T4 Post
Height Adjustment.
2. Melt the grew before perform adjustment.
MECH-19
SCREW A OTHER
SCREWS
1/3 of the 1/3 of the
screw
SCREW A OTHER
SCREWS
1/4 of the screw 1/4 of the screw
Specification
Tape damage does not occurred on
tape at lower limit of T3 and T4
post.
Tape damage does not occurred on
tape at lower limit of T3 and T4
post.
screw