Table Of Contents; Disassembly Procedure - Technics SL-1200MK2 Service Manual

SL-1200MK2
CONTENTS
DISASSEMBLY PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . 2,3
PARTS IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ARM BASE ASSEMBLING PROCEDURE. . . . . . . . . . . . . . . . . 4
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SCHEMATIC DIAGRAM . . . . . . .
. . .
. . . . . . .
. . . . . . . .
. . . 7,8
REPLACEMENT PARTS LIST (Electrical) . . . . . . . . . . . . . . . .
9
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
DISASSEMBLY PROCEDURE
How to remove panel cover
1 . Remove head shell and turntable.
2 . Secure arm with arm clamp .
3 . Remove 5 screws O of the panel cover as shown in
Fig. 1 .
How to remove stater frame coil and F.G detector
coil
4 . Remove 3 connectors O and 2 read wires @ from
power transformer as shown in Fig. 2.
5 . Remove 3 screws @ of the drive circuit board and 3
screws © of the stater frame cover as shown in Fig. 2.
6 . Disconnect 18 soldered parts O of the stater coil and
4 soldered parts O of the F.G detector coil as show in
Fig. 3.
7 . Remove 3 screws Q of the stater frame ass'y as shown
in Fig. 3.
How to remove bottom base ass'y
8. Remove 4 audio insulators . (Counterclockwise rotation)
9. Remove 17 screws and spacer Q as show in Fig. 4.
10 . Remove 11 screws O as shown in Fig. 4.
How to remove stylus-illuminator lamp
11 . Remove 2 screws Q of the stylus-illuminator lamp
ass'y as shown in Fig . 5.
12 . Remove 1 screw O as shown in Fig. 6.
How to remove neon-illuminator L .E .D .
13 . Remov e 4 screws Q as shown in Fig. 5.
14 . Remove 1 circlip Q and switch cam
QQ
as shown in
Fig. 5.
15 . Remove strobo-illuminator case .
How to remove tone arm
16 . Remove 4 screws Q of the arm base cover as shown in
Fig . 5.
17 . Remove 2 screws © of the phono cord clamper as
shown in Fig. 5 .
18 . Remove phono cord clamper as shown in Fig. 7.
19 . Remove 2 screws Q of the phono cord p.c .b . as shown
in Fig . 8.
20 . Remove 2 screws © as shown in Fig . 8.
21 . Remove 2 screws Q of the silicon oil dumper as shown
in Fig. 8 .
22 . Remove 3 screws Q as shown in Fig. 8 .
23 . Remove 2 screws 0 of the tone arm as shown in
Fig. 9.
PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . 11,12
ADJUSTMENT (Electrical) . . . . . . . . . . . . . . . . . . . . . . . . . . 13
REFERENCE VOLTAGE AND WAVEFORM AT EACH IC
PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13,14
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16
EXPLODED VIEWS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17,18
REPLACEMENT PARTS LIST (Mechanical) . . . . . . . . . . . . . 19
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20