4
MITSUBISHI HS-S5600E
2-2-2 Installation (Refer to Fig. 2-1-3~2-2.)
A.Install the drive gear on the shaft as shown in
Fig. 2-2.
B.Line the matching mark on the drive gear and
beginning of gear section on the lock arm as
shown in Fig.2-2, and install the lock arm.
C.Install the side plate TU to the cassette
housing, and secure it with four snaps (a), (b)
(c) and (d) as shown in Fig. 2-1-3 (see
previous page).
Fig. 2-2
2-3 Drum Assembly
2-3-1 Removal (Refer to Fig. 2-3-1~2-3-3)
A.Disconnect the roller units connector (CP)
from the control PCB.
B. Unscrew the roller unit fastening screw (a)
and remove the roller unit.
C. Unscrew three fastening screws (b), (c) and
(d) and remove the head amplifier PCB which
is connected to the drum assembly.
D.Unscrew the brush fastening screw and
remove the brush as shown in Fig. 2-3-2.
Note: The cable and connector between the
drum and head amplifier may be damaged if
the cable is pulled strongly, as the cable is
short. Remove the shield cap of the PCB,
raise the PCB slightly and disconnect the flat
cable. Removal method for the flat cable
connector and stopper is shown in Fig. 2-3-3.)
Disconnect the grounding wire and remove
the head amplifier PCB.
E.Unscrew three drum fastening screws (e), (f)
and (g) from the reverse side of the deck.
F. Remove the drum assembly by raising it with
care not to touch other parts around the drum
assembly.
G.Disconnect the connectors from the drum
assembly.
2-3-2 Installation (Refer to Fig. 2-3-1, 2-3-2.)
A.Connect the connectors to a new drum
assembly.
B.Place the new drum assembly on the main
plate of the deck slowly being careful not to
touch other parts.
C.Fasten the drum assembly with three
fastening screws (e), (f) and (g) on the
reverse side of the deck.
D.Fasten the brush with the fastening screw.
E.Connect the head amplifier PCB to the drum
assembly and fasten the PCB with three
screws (b), (c) and (d).
F. Connect the roller unit s connector (CP) to the
control PCB.
G. Fasten the roller unit with the fastening screw
(a). Note: Conduct the mechanism inter-
changeability adjustment outlined in Para . 3
to give optimum performance when the drum
assembly is replaced.
Fig. 2-3-1
Fig. 2-3-2
Fig. 2-3-3
2-4 Upper Drum
2-4-1 Removal (Refer to Fig. 2-4-1.)
A.Unscrew the roller unit fastening screw and
remove the roller unit.
B.Unsolder two inside soldered terminals of
each head on the upper drum.
C.Unscrew the upper drum fastening screws.
D.Remove the upper drum slowly and carefully.
Note: If the upper drum is difficult to remove,
heat the upper drum fastening screw holes
with a soldering iron, and the drum will be
easily removed.
2-4-2 lnstallation (Refer to Fig. 2-4-1.)
Note: Handle the upper drum carefully as the
video heads are fragile.
A.Position the lower drum so that the hole in the
shaft faces the operator. Align the upper drum
with the lower drum so that the CH1 mark on
the upper drum is on the right side, and
couple the drums.
B.Fasten the upper drum with two screws.
(Tighten the screws alternately.)
C.Solder the terminals not soldered on the
upper drum.
D. Clean the video heads as outlined in Para.1-
1.
2-5 Ribbed Belt
2-5-1 Removal (Refer to Fig. 2-5)
A.Remove the screw (a) retaining the holder belt
unit, and remove the holder belt unit.
B.Detach the capstan brake spring from the
tension unit and capstan brake unit.
C.Remove the screw (b) retaining the tension
unit and the nut (c), and remove the tension
unit.
D.Remove the ribbed belt from the capstan
motor and the belt pully.
2-5-2 Installation (Refer to Fig. 2-5-1, 2-5-2)
A.Confirm that the groove of the new ribbed belt
is turned to the inside, as shown in Fig. 2-5-2,
and then install the ribbed belt to the capstan
motor and the belt pulley.
B. lnstall the tension unit to the main plate with
the screw (b) and the nut (c).
C.Fasten the capstan brake spring to the
tension unit and capstan brake unit.
D.Install the holder belt unit to the main plat with
the screw (a).
Note: Make certain that the new belt is free
from grease, before installing.
Fig. 2-4-1
Fig. 2-5-1
Fig. 2-5-2
2-6 Capstan Motor
2-6-1 Removal (Refer to Fig. 2-5, 2-6)
A.Disconnect the flat cable.
B.Detach the capstan brake spring from the
tension unit and capstan brake unit.
C.Remove the screw (a) retaining the tension
unit and the nut (b), and remove the tension
unit.
D.Remove the ribbed belt.
E.Remove three fastening screws shown in Fig.
2-6 and remove the capstan motor.
CAUTION:
Restrain the capstan motor as the three screws
are removed, since an un-restrained motor may
damage other parts of the deck. When perform-
ing removal or installation of the capstan
motortake care that the outside of the rotor's rim
is not greased.(Refer to Fig. 2- 5.)
If greasy components are attached on the
outside of the rotor's rim, wipe them off with a
dry cloth because they may cause defects
during special effects playback.
2-6-2 Installation (Refer to Fig. 2-5, 2-6.)
A.Fasten the motor with three fastening
screws.(Refer to Fig. 2-6.)
B.Install the ribbed belt.
C.Install the tension unit to the main plate with
the screw (a) and nut (b).
D.Fasten the capstan brake spring to the
tension unit and capstan brake unit.
E.Connect the flat cable.
2-7 Loading Motor
2-7-1 Removal (Refer to Fig. 2-7-1, 2-7-2.)
A.Set the VCR to the eject mode.
B.Unscrew the humidity sensor assembly
fastening screw (a) and remove the humidity
sensor assembly. (Refer to Fig. 2-7-1.)
C.Disconnect the wires from the loading motor.
D.Remove two stoppers securing the motor and
the motor holder plate. (Refer to Fig. 2-7-2.)
E.Slide the motor and motor holder plate away,
and then raise them to remove.
F. Unscrew two screws and detach the motor
holder plate from the motor.
G.Disconnect the coupling from the motor.
2-7-2 Installation (Refer to Fig. 2-7-1~2-7-3.)
A.Fasten the coupling to a new loading motor.
(Refer to Fig. 2-7-3.)
B.Fasten the motor holder plate to the motor
with two screws.
C.Place the motor and motor holder plate in the
motor holder at the rear of the deck.
D.Turn the motor shaft so that the coupling on
the loading motors matches the worm gear of
the motor holder. Slide the loading motor
forward and secure it with the stoppers.
E. Solder the leads to the loading motor. (Brown
lead wire to the positive terminal and red lead
wire to the negative terminal.)
F. Fasten the humidity sensor assembly with the
fastening screw (a).(Refer to Fig. 2-7-1.)
Fig. 2-6
Fig. 2-7-1
Fig. 2-7-2
2-8 Pinch Roller
2-8-1 Removal (Refer to Fig. 2-8-1, 2-8-2.)
A.Set the VCR to the eject mode.
B.Remove the pinch roller arm cap and the grip
ring which secures the pinch roller arm
assembly.
C.Pull the pinch roller arm assembly upwards to
remove.
D.Remove the pinch roller cap from the pinch
roller arm, and remove the pinch roller. (Refer
to Fig. 2-8-2.)
Fig. 2-7-3
2-8-2 Installation (Refer to Fig. 2-8-1, 2-8-2.)
A.Assemble the pinch roller cap and the pinch
roller to the pinch roller arm by exercising
care with the installation angle of the pinch
roller cap and the marking of the Pinch Roller.
(Refer to Fig. 2-8-2.)
B.Assemble the pinch roller assembly to the
shaft on the main plate.
C.Secure the pinch roller arm assembly with the
pinch roller arm cap and the grip ring.
Fig. 2-8-1
Fig. 2-8-1
2-9 Mode Switch
Note: Replace the mode switch with the VCR in
the eject mode.
2-9-1 Removal (Refer to Fig. 2-9-1)
A.Unsolder the five soldered joints of the mode
switch from the deck PCB.
B.Unfasten two catches fastening the switch to
the deck PCB assembly. (Exercise care as
the catches may be broken off.)
C.Remove the mode switch slowly while
assuring that the soldered joints are all
unsoldered.
2-9-2 lnstallation (Refer to Fig. 2-9-1,2-9-2.)
A.Line the matching marks of the mode switch.
(Refer to Fig. 2-9-2.)
B.Finally adjust the mode switch so that
continuity at each terminal shall be as given in
the illustration.
C.Fasten the switch to the deck PCB with care
so that the switch shall not turn, and secure
with two catches.(Refer to Fig. 2-9-1.)
D.Solder the five terminals which connect the
mode switch to the deck PCB assembly.
Fig. 2-8-2
Fig. 2-9-1
Mechanical Adjustments
Cont'd
