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— 29 —

1)

Remove the screw (M1.4 

×

 2) 1.

2)

Move the key slot of the gear cover C in the direction of the
arrow A and remove the gear cover C.

3)

Remove the pinch drive arm assy.

4)

Remove the cam gear B.

1)

Identify the front side and the rear side of a cam gear B.  Align
the cam gear B shaft, the gear phasing hole and the LS chassis
hole.  Then attach the cam bear B.  coat groove of a cam gear
with grease (1/2 drop).

2)

Align the pinch drive arm assy with the pinch drive pivot shaft.
While aligning dowel with the cam groove of the cam gear B,
insert the pinch drive arm assy.

3)

Insert the “one-step bent portion” of gear cover C into notch of
the chassis, insert the cam gear B shaft into the key hole of the
gear cover. C.

4)

Insert the gear cover C into the pinch drive pivot shaft and fix
it with the screw (M1.4 

×

 2) 1.  After tightening the screw

(M1.4 

×

 2) 1, move the gear cover C in order to confirm that

there is a little play.
Tightening torque: 0.059 ± 0.01 N•m (0.6 kg•cm)

1

×

A

— 30 —

1)

Remove the screw (M1.4 

×

 2) 1.

2)

Remove the gear cover A in the direction of the arrow A.

3)

Remove the screw (M1.4 

×

 2.5) 2.

4)

Remove soldering from the motor terminal and FP-228 flexible
wiring board (DEW sensor) that are used to connect the FP-
100 flexible wiring board with the motor holder block assy.

5)

Remove the motor holder block assy.

1)

Align the motor holder block assy position with the chassis
square hole and round hole.  The press the motor holder block
assy with finger.

Coat the worm shaft with grease (1/2 size of a rice gain).

2)

Fix the motor holder block assy with the screw (M1.4 

×

 2.5)

2

.

Tightening torque: 0.059 ± 0.01 N•m (0.6 kg•cm)

3)

Install the gear cover A as follows: Hook the shaft with the key
slot and align the U-groove with the cam gear A shaft.  Confirm
at this time that there is a play.

4)

Attach the gear cover A to the cam gear A shaft and fix them
with the screw (M1.4 

×

 2) 1.

Tightening torque: 0.059 ± 0.01 N•m (0.6 kg•cm)

5)

Connect the FP-100 flexible wiring board with the motor holder
block assy (motor terminal and FP-228 flexible wiring board
(DEW sensor)) by soldering.

Do not touch the DEW sensor.

1

 Screw (M1.4 

×

 2) 

2

 Screw (M1.4 

×

 2.5) 

Gear cover A

FP-100 flexible wiring board

Soldering point

Soldering 
point

Motor holder block assy

Worm shaft

Gear cover A

Align the U-groove 
with the cam gear 
A shaft.

Cam gear A shaft

Position where hole of the 
gear is visible

When attaching it, coat the hatched       portion with grease.

Gear cover A

A

Deceleration gear A shaft

Motor holder 
block assy

Deceleration gear

Align the two points that are square 
hole of chassis and round hole.
Note: Be careful not to override.

FP-228 flexible wiring board 
(DEW sensor)

— 31 —

1)

Remove the deceleration gear.

2)

Remove the screw (M1.4 

×

 2) 1.

3)

Remove the cam gear A.

4)

Remove the mode gear assy.

5)

Remove the FP-100 flexible wiring board.

Do not touch the foil pattern area of the FP-100 flexible wiring
board.  Any foreign materials must not be adhered.

Do not remove the mode gear assy unnecessarily.

1)

Install the FP-100 flexible wiring board to the mechanism
chassis.   Confirm that flexible wring board is not stained,
broken, bent or damaged.

2)

Coat the entire contact points of the mode pattern area of the
FP-100 flexible wiring board with the contact-point grease
(equivalent to 1.5 drops).  (Any foreign materials must not be
mixed in the contact-point grease.)

3)

Attach the mode gear assy to the mode gear shaft.

4)

Install the deceleration gear as follows: Position the deceleration
gear with its small gear down, and engage the small gear tooth
with the mode gear tooth.  Rotate the gear tooth until the phasing
marking of the mode gear assy arrives at the phasing position
of the cam gear A.

5)

Identify the front and rear sides of the cam gear A.  Confirm
that the marking of the cam gear A and that of the mode gear
assy agree.

6)

Attach the screw (M1.4 

×

 2) 1 of the mode gear assy.

Tightening torque: 0.059 ± 0.01 N•m (0.6 kg•cm)

7)

Connect the FP-100 flexible wiring board to the motor holder
block assy by soldering in accordance with section "3-22 [2.
Attachment procedure] step 7.

If the FP-100 flexible wiring board is removed, replace it with a
new FP-100 board, and do not use the removed FP-100 flexible
wiring board.

Cautions when attaching the FP-100 flexible wiring board:
1

 It must not override on the mode gear shaft.

2

 It must be aligned with the position setting hole.

3

 It must no float, must not have stain or must not be broken.

4

 Never touch the foil pattern area with hand.

1

×

— 32 —

1)

Clean the tape running surface (tape guides, drum, capstan,
pinch roller) referring to Service Manual.

2)

Connect adjustment remote commander (Ref. No. J-13) to the
LANC terminal of the machine.  Set the HOLD switch to ON.

3)

Connect an oscilloscope to the VC-240 board CN009 via the
CPC-8 jig (J-082-388-A).  (in the case of DCR-TRV20).
Scope channel 1: VC-240 board CN009 pin w; (Note)
External trigger:

VC-240 board CN009 pin qj

Connect CN009 pin w; and pin ql (GND) with 75 

Ω

 resistor

(1-247-804-11).

4)

Play the tracking alignment tape (XH2-1)(Ref. No. J-5) back.

5)

Select page: 3, address: 33 and data: 08.  (Note)

6)

Select page: 3, address: 26 and data: 31.  (Note)

7)

Confirm that RF waveform on scope is flat in both entrance
side and exit side.  (Refer to Fig. 4-2 A).
If RF waveform is not flat in entrance side and exit side, perform
the adjustment of section 4-2. and later.  (Refer to Fig. 4-2 B
and C).

8)

When the required conditions of step 7) are satisfied and
adjustment/check are complete, perform [Required work upon
completion of adjustment] as described below.

[Required work upon completion of adjustment]
1)

Connect adjustment remote commander (Ref. No. J-13) to the
LANC terminal of the machine.  Set the HOLD switch to ON.

2)

Select page: 3, address: 26 and data: 00.  (Note)

3)

Select page: 3, address: 33 and data: 00.  (Note)

Page and address numbers differ depending on each model.  Please
refer to Service Manual of respective models.  Those of DCR-TRV20
are described above.

A

B

C