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2.1 DVC MECHANISM
2.1.1 Precautions
(1) When fastening parts, pay careful attention to the tighten-
ing torque of each screw. Unless otherwise specified, tight-
en a screw with the torque of 0.055 N•m (0.56 kgf•cm).
(2) Be sure to disconnect the set from the power supply before
fastening and soldering parts.
(3) When disconnecting/connecting wires, be careful not to get
them and their connectors damaged.
(4) When replacing parts, be very careful neither to damage
other parts nor to fit wrong parts by mistake.
2.1.2 Notes on procedure for disassembly/assembly
The disassembling procedure table (Fig. 2-1-10 on page 2-4,a
part of the table is shown below for reference)shows the proce-
dure to disassemble/reassemble mechanism parts.
Carefully read the following explanation before starting actual
disassembling/reassembling work. The item numbers(circled
numbers)in the following explanation correspond to those ap-
pearing under respective columns of the table.
Example
NO.
PART NAME
[ 1 ]
CASSETTE HOUSING ASSY
[ 2 ]
UPPER BASE ASSY
[ 3 ]
DRUM ASSY
[ 4 ]
REEL DISK ASSY(SUP)
[ 5 ]
REEL DISK ASSY(TU)
[ 6 ]
REEL COVER ASSY
*1
*1 Numbers appearing in this column indicate the order to re-
move parts. When reassembling, follow these numbers in
the reverse order. Circled numbers in this column corre-
spond to those appearing in drawings of this section.
*2 This column shows part names corresponding to numbers
in the left column.
*3 The symbol (T or B)appearing in this column shows the
side which the objective part is mounted on.
T =the upper side, B =the lower side
*4 Symbols appearing in this column indicate drawing num-
bers.
*5 This column indicates parts and points such as screws,
washers,springs,and others to be removed/fitted for disas-
sembling/reassembling the mechanism. Besides such the
parts, this column occasionally indicates working points.
P = Spring
W = Washer
S = Screw
* = Lock (L),soldering (SD),shield,connector (CN),etc.
Example
• Remove (W1)=Washer W1.
• Remove the solder at (SD1)=Point SD1.
• Disconnect A = Connector A.
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
T Fig.2-4-3
T Fig.2-4-4
T
T Fig.2-4-5
T
T
*2
*3
FIG.
POINT
3(S1),(L1a)-(L1e)
(S2),(L2a),(L2b)
(S3a),2(S3b)
(W4)
(W5a),(W5b),(W5c)
(W6),(S6a),2(S6b)
*4
*5
*6 Numbers in this column represent the numbers of notes in
the text.
(For parts that need phase adjustment after reassembling,
refer to "MECHANISM ADJUSTMENTS".)
*7 This column indicates required after-disassembling/-reas-
sembling work such as phase adjustment or mechanism
adjustment.
NOTE
REMARKS
NOTE 1 a,b,c,d ADJUSTMENT
NOTE 2
NOTE 3 a,b
NOTE 4 a
NOTE 5 a,b
NOTE 6
ADJUSTMENT
*6
*7
(No.86700)2-1
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