2-1
SECTION 2
MECHANISM ADJUSTMENT
2.1 Before starting repair and adjustment
2.1.1 Precautions
(1) Unplug the power cord plug of the VCR before using your
soldering iron.
(2) Take care not to cause any damage to the conductor
wires when plugging and unplugging the connectors.
(3) Do not randomly handle the parts without identifying
where the trouble is.
(4) Exercise enough care not to damage the lugs, etc. dur-
ing the repair work.
(5) Install the cassette housing assembly only when the
mechanism is in the “Mechanism assembling mode” po-
sition. (See 2.2.2.)
(6) When reattaching the front panel assembly, make sure
that the door opener of the cassette housing assembly
is lowered in position prior to the reinstallation. (See SEC-
TION 1 DISASSEMBLY.)
(7) When checking the operation or performing adjustments
to the VCP main unit, it is necessary to connect the power
cable (Car Cable) to the VCP main unit so that DC power
is supplied. Also, when using the remote control unit, it
is required to connect the IR receiver. (by using either
the provided or optional accessories)
2.1.2 Checking for proper mechanical operations
Enter the mechanism service mode when you want to oper-
ate the mechanism when no cassette is loaded. (See 1.5
Mechanism service mode.)
2.1.3 Manually removing the cassette tape
If you cannot remove the cassette tape which is loaded be-
cause of any electrical failure, manually remove it by taking
the following steps.
(1) Unplug the power cord plug from the power outlet.
(2) Refer to the disassembly procedure and perform the dis-
assembly of the major parts before removing the Cas-
sette housing assembly.
(3) Unload the pole base assembly by manually turning the
loading motor of the mechanism assembly toward the
front. In doing so, hold the tape by the hand to keep the
slack away from any grease. (See Fig.2-1-3a.)
(4) Bring the pole base assembly and guide arm assembly
to a pause when it reaches the position where it is hid-
den behind the cassette tape.
(5) Remove the cassette housing assembly by holding both
the slackened tape and the cassette lid.
(6) Take up the slack of the tape into the cassette. This com-
pletes removal of the cassette tape.
Note:
• For the disassembly procedure of the major parts and
details of the precautions to be taken, see “1.3 Disas-
sembly/assembly method”.
Fig. 2-1-3a
Loading motor
Guide arm assembly
Pole base bssembly
2.1.4 Jigs and tools required for adjustment
Roller driver
PTU94002
A/C head positioning tool
PTU94010
Back tension cassette gauge
PUJ48076-2
Jig RCU
PTU94023B
Torque gauge
PUJ48075-2
Alignment tape
(EP, stairstep, NTSC)
MHP-L
Alignment tape
(SP, stairstep, PAL)
MHPE
Alignment tape
(SP, stairstep, NTSC)
MHP
Alignment tape
(LP, stairstep, PAL)
MHPE-L
