Hitachi VIV-E553LE - Mechanical Adjustment; Before Starting Adjustment

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MECHANICAL ADJUSTMENT
ADJUSTMENT POINTS ON THE MECHANISM
11 10 9
Fig. 1-1
BEFORE STARTING
ADJUSTMENT
See "CHAPTER 1 DISASSEMBLY" for dismantling and
reassembling the mechanism, and matching phases of
gears in assembly.
The following describes the procedure for setting the
mechanism to the playback mode without inserting a
cassette (a circuit board that mounts mechanism drive
circuits must be connected):
The playback mode cannot be kept by any of the
following procedures because reel disks do not turn,
etc.:
1) Set the mechanism to the unloading stop or eject
mode.
2) Shade light from the end LEDs.
3) Lower the cassette holder.
4) Press the playback button.
The following shows the procedure for loading and
unloading the unassembled mechanism:
1) Supply 4V DC to the terminals of loading motor:
Red lead wire (+), brown lead wire (-): Loading
Brown lead wire (+), red lead wire (-): Unloading
Cylinder
Guide Roller (O) [Take-up Guide Roller]
Tape
Capstan Motor
OHD Arm [Pull Out Arm]
Pressure Arm [Pressure Roller]
Cassette Holder Switch
Take-up Reel Disk
9. Mode Switch [Mechanism State Switch]
10. End LED
11. Supply Reel Disk
12. Tension Band Holder
13. Tension Arm [Tension Pole]
14. Loading Motor
15. Guide (I) [Supply Guide]
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3. TAPE TRANSPORT SYSTEM
CHECK/ADJUSTMENT
The tape transport system is a generic term for the path
from the supply reel disk to the take-up reel disk via
cylinder.
Notes: 1. The tape transport system is adjusted before
shipment from the factory, so perform
adjustments only when components of the
transport system are replaced or adjustments of
the transport system have drafted.
2. The tape transport components, especially the
components which come into direct contact with
the tape, should be kept clean without damage,
dust or oil, etc. adhering to the contact surfaces.
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