2-3-3
D5P4HSMA
1-A. Preliminary/Final Checking and
Alignment of Tape Path
Purpose:
To make sure that the tape path is well stabilized.
Symptom of Misalignment:
If the tape path is unstable, the tape will be damaged.
Note:
Do not use an Alignment Tape for this proce-
dure. If the unit is not correctly aligned, the tape may
be damaged.
1. Playback a blank cassette tape and check to see
that the tape runs without creasing at Guide Rollers
[2] and [3], and at points A and B on the lead sur-
face. (Refer to Fig. M3 and M4.)
2. If creasing is apparent, align the height of the guide
rollers by turning the top of Guide Rollers [2] and
[3] with a Guide Roller Adj. Screwdriver. (Refer to
Fig. M3 and M5.)
3. Check to see that the tape runs without creasing at
Take-up Guide Post [4] or without snaking between
Guide Roller [3] and ACE Head. (Fig. M3 and M5)
4. If creasing or snaking is apparent, adjust the Tilt
Adj. Screw of the ACE Head. (Fig. M6)
1-B. X Value Alignment
Purpose:
To obtain maximum PB FM envelope signal at the pre-
set position of the Tracking Control Circuit, align the
Horizontal Position of the ACE Head.
Symptom of Misalignment:
If the Horizontal Position of the ACE Head is not prop-
erly aligned, maximum PB FM envelope cannot be
obtained at the preset position of the Tracking Control
Circuit.
1. Connect the oscilloscope to TP301 (C-PB) and
TP503 (CTL) on the Main CBA. Use TP504 (RF-
SW) as a trigger.
2. Playback the Gray Scale of the Alignment Tape
(FL6NS8) and confirm that the PB FM signal is
present.
3. Set the Tracking Control Circuit to the preset posi-
tion by pressing CH UP button on the remote con-
trol unit then “PLAY” button on the unit. (Refer to
note on bottom of page 2-3-4.)
4. Use the Flat Screwdriver so that the PB FM signal
at TP301 (C-PB) is maximum. (Fig. M6)
Guide Roller [2]
Guide Roller [3]
A
B
Take-up Guide Post [4]
ACE Head
Fig. M3
Lead Surface of Cylinder
Tape
Fig. M4
Take-up Guide
Post
Tape
Guide Roller
Tape
Correct
Incorrect
Fig. M5
Azimuth Adj. Screw
Flat
Screwdriver
Tilt Adj. Screw
ACE Head
Fig. M6
Summary of Contents for Sirius 100
Page 31: ...1 10 3 1 10 4 H97A8SCM1 Main 1 8 Schematic Diagram VCR Section...
Page 33: ...Main 3 8 Schematic Diagram VCR Section 1 10 7 1 10 8 H97A8SCM3...
Page 34: ...Main 4 8 Schematic Diagram VCR Section 1 10 9 1 10 10 H97A8SCM4...
Page 35: ...1 10 11 1 10 12 H97A8SCM5 Main 5 8 Schematic Diagram VCR Section...
Page 36: ...Main 6 8 Schematic Diagram VCR Section 1 10 13 1 10 14 H97A8SCM6...
Page 37: ...Main 7 8 DVD Open Close Schematic Diagrams VCR Section 1 10 15 1 10 16 H97A8SCM7...
Page 38: ...Main 8 8 Schematic Diagram VCR Section 1 10 17 1 10 18 H97A8SCM8...
Page 40: ...Jack A Schematic Diagram 1 10 21 1 10 22 H97A8SCJ...
Page 41: ...AFV Schematic Diagram 1 10 23 1 10 24 H97A8SCAFV...
Page 46: ...1 10 33 1 10 34 H97A8SCD1 DVD Main 1 3 Schematic Diagram DVD Section...
Page 47: ...1 10 35 1 10 36 H97A8SCD2 DVD Main 2 3 Schematic Diagram DVD Section...
Page 49: ...1 10 39 1 10 40 H97A8SCD3 DVD Main 3 3 Schematic Diagram DVD Section...
