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4-1. Mechanical adjustment
4-1-1. Plunger stroke adjustment
The plunger stroke must be adjusted to determine the head
advance amount, when the plunger is replaced.
Erace head
Board cushion
0.3~0.5 mm
Replacement and adjustment :
1. Removing the cassette retainer (3-164-259-01) on the
front side of chassis will expose the plunger fixing
screws (PSW3 x 6).
2. Replace the plunger, fix it temporarily to the chassis,
and link it to the head board.
3. Push in the plunger iron-core until it contacts closely
the plunger main body, so that the head board advances.
4. Fix the plunger at the position where a clearance
between head board and board cushion (3-164-245-01)
bonded to the notch in the chassis is 0.3 to 0.5 mm.
Note : After replacement, confirm in the copy status (service mode or cleaning
mode) that the clearance of 0.3 to 0.5 mm is ensured.
CCP-1100SF
Section 4
Alignment
Head board
Chassis
Plunger
Plunger iron-core
4-1-2. Electrostatic brush replacement
An electrostatic brush is attached to the head board to eliminate
static discharge. It comes in contact with the tape when the head
board advances. Therefore, it wears.
Follow the procedure provided below when replacing the brush.
1. Remove the electrostatic brush assembly (fixing screw :
PS2 x 4) on the head board, then remove the brush
retainer (fixing screw : PS2 x 4) and peel the brush off
the brush bracket (3-164-234-02).
2. Clean the brush bracket with alcohol, and bond a new brush.
3. The electrostatic brush position is as shown in below.
Note : The brushes are made of thin stainless wires.
Take care not to bend them during replacement.
Align the brush end (0.5 mm length form the body)
with trail edge of brush bracket.
Electrostatic brush
4-1-3. Head height adjustment
1. Install a mirror tape cassette (CQ-012C) and depress
COPY button and STOP button alternately in service
mode and confirm that the tape is held at tape guide.
2. In service mode, press the COPY button, if tape is
curled along tape guide, adjust the respective adjustment
parts as shown in below.
Note : Also pay attention to head azimuth and zenith, and execute visual
confirmation. For this, turn the front and back height adjustment screws
and the azimuth adjustment screw each for about the same amount.
[ Record and Playback Head ]
Azimuth
adjustment screw
This screw is not
for adjustment and
should be tightend.
Height
adjustment screws
Align the brush body
with upper edge of brush bracket.
Brush bracket
Correct
Wrong
Tape
[ Guide Head ]
Height
adjustment screw
4-1
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