Ctl Self Recording Level Confirmation; Play Tape Path Limit Confirmation - Panasonic AJ-SD93P/E Service Manual

3-21. CTL Self Recording Level
Confirmation
TEST POINT
TP30 : SERVO
ADJ.
T4 post height
MODE
PLAY, REV×1, REV×0.2
TAPE
Blank Tape
M cassette 66 min
M.EQ
Oscilloscope
(Specification for confirmation)
CTL Output Level : C1, C2
PLAY
C1, C2 ≥ 1.8 V
REV (SHTL x-1)
C1, C2 ≥ 1.4 V
REV (SHTL x-0.2)
C1, C2 ≥ 1.2 V

3-22. Play Tape Path Limit Confirmation

SPEC
Each post limit shown in figure below.
MODE
PLAY
TAPE
VFM3580KM/L or Blank Tape
Post Name
S5 post
S4 (Tension) post
S1 post
T1 post
T3 post
T4 post
1. Place the unit into PLAY mode and confirm that the each post limits is within the specification.
2. If it is out of specification, adjust the post height by following the each adjustment procedure (Refer to above
table).
A : UPPER
Tape limit (refer to figure)
A B C D
NG OK OK NG
NG NG OK NG
OK NG NG NG
OK NG NG NG
NG NG OK NG
OK OK OK NG
B : FREE C : LOWER
1. Confirm that the each screws are fixed on A/C
Head.
2. Place the Unit into DVCPRO 25M REC mode and
playback the recorded portion.
3. Confirm that the CTL level is within the
specification at PLAY and REV mode.
4. If CTL level is out of specification at PLAY mode,
confirm the height of A/C Head (refer to item "3-17.
A/C Head Height Confirmation")
5. If CTL level is out of specification at REV mode,
confirm the height of T4 Post (refer to item "3-20.
REV Tape Path Confirmation and Adjustment").
Adjustment
Point
E F
NG NG S4, S5 post
NG NG
NG NG S1, T1 post
NG NG
NG NG A/C Head tilt screw
NG NG T4 post
Table 3-22-1
D : CURL
Figure 3-22-1
MECH-17
Figure 3-21-1
Adjustment
Item
Post Height Pre-Adjustment
ENV Waveform Adjustment
A/C Head Tilt Adjustment
Post Height Pre-Adjustment
E : BEND F : DROP