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1. Make sure that the loading gear is at the PHASE-

MATCHING point 

1

 as shown below.

2. Install, paying attention to insert point 

5

 and release

point 

3

.

3. For the phase matching at the insert point  

1

, see the

PHASE-MATCHING point 

2

 as shown below.

4. Finally fix the inserts 

1

 and 

4

.

Capstan
D.D. motor

Drum

Reel pulley

(Bottom side of mechanism chassis)

Sifter

Phase-Matching
point 

2

Insert
point 

1

Half round notch

Shaft 

1

Round mark

Loading gear (T)

Insert
point 

3

Insert
point 

4

Insert
point 

5

Release
point 

3

Phase-matching
point 

1

Shaft 

1

Shaft 

1

Shaft 

2

Insert
point 

2

Rotation
point 

2

1. Make sure beforehand that the shifter is at the point as

shown below.

2. Place the master cam in the position as shown below.

Note:
See the figure below for the phase matching between the
master cam and the casecon drive gear.
3. Finally fix with the E ring.

• Replacement
Remove the loading motor, and install the replacement
loading motor as shown below.

When installing the master cam,
align the casecon drive gear
round mark with the half-round
notch of master cam.

The loading motor pressing-in must be less than 147 N (15
kgf).
Adjust the distance between motor and pulley to 10.2
     mm).

E ring
(XRESJ30-06000)

Master cam

Fully turn
clockwise

Fully turn counterclockwise

Face the wide tooth side ward

Master cam

Casecon drive gear

10.2      mm

Round mark

Half-round notch

+0

.2

–0.2

Apply grease

Apply grease

No grease

+0

.2

–0.2

MSPRT0381GEFJ

Apply grease

Apply grease

Apply grease

LANGF9592GEFW

Top surface should be free from scratches or soil.

Drive angle

Drive gear R

Frame

Notes:
• Before the adjustment:

Electrical adjustments discussed here are often required after replacement of electronic components and mechani-
cal parts such as video heads.
Check that the mechanism and all electric components are in good working condition prior to the adjustments,
otherwise adjustments can not be completed.

• Instruments required:

Colour TV monitor
Dual-trace oscilloscope

         Alignment tape (VROCPSV)

Blank video cassette tape
DC voltmeter
Screwdriver for adjustment

Servicing precations
When the IC705 (E

2

PROM) has been replaced, make the following reprogramming. Depending on models, the IC705

(E

2

PROM) has been factry-adjusted for it’s memory function.

It’s therefore necessary to reprogram the memory function for the model in question.
Note that the servo circuit requires readjustments for the head switching point, slow and still modes.