Download  Print this page

Technics SL-1200MK2 Service Manual

Turntable system.
Hide thumbs

Advertisement

Service Manual
Turntable System
SPECIFICATIONS
General
Power supply :
Power consumption :
Dimensions :
(WxHxD)
Weight :
Turntable section
Type :
Drive method :
Motor :
Turntable platter:
Turntable speeds :
Pitch control :
;:carting torque :
Build-up
characteristics :
Braking system :
Speed change due to
load torque :
Wow and flutter :
* This rating refers to turntable assembly alone, excluding
effects of record, cartridge or tonarm, but including
platter .
Measured by obtaining signal from built-in fre-
quency generator of motor assembly .
Specifications subject to change without notice .
Panasonic Company
Division of Matsushita Electric
Corporation of America
One Panasonic Way, Secaucus,
New Jersey 07094
This service literature is designed for
experienced repair technicians
only and is not designed for use by
the general public . It does not
contain warnings or cau:'.ons to advise
non-technical individuals of
potential dangers in attempting to service a product
. Products powered
by electricity should be serviced or
repaired only by experienced
professional technicians. C.iy attempt to service
or repair the product
or, ,products dealt with in this service literature
t;+ anyone else could
rest'' in. . serious injury or death .
SL-12
Panasonic Hawaii, Inc .
320 Waiakamilo Road, Honolulu,
.Hawaii 96817
A WARNING
ORDER NO . SD7908-1601
OM K2
(M),
(MC)
" The model SL-11 200MK2 (M) is available in U .S .A . only .
*The model SL-1200MK2 (MC) is available in Canada only .
Weight and dimensions shown are approximate .
Cud Matsushita Electric Industrial
Co . Ltd.
All rights reserved .
Unauthenzed
copying and distribution
is a
violation of
law
Matsushita Electric of Canada Ltd .
5770 Ambler Drive,
Mississauga, Ontario
LAW 2T3
Arm height adjustment
range :
31 .8-37 .8 mm (helicoid part 6 mm)
(1-21 /32"-3-35/64")
Quartz direct drive
(helicoid part 15/64")
Manual turntable
Overhang :
15 mm (19/32")
Direct drive
Effective mass :
12 g (without cartridge)
Brushless DC motor
Offset angle :
22°
Aluminum diecast
Friction :
Less than 7 mg (lateral, vertical)
Diameter 33 .2 cm (13-5/64")
Tracking error angle :
Within 2 ° 32' (at the outer groove of
Weight 2 kg (4 .4 lb .)
30 cm (12") record
33-1/3 rpm and 45 rpm
Within 0 ° 32' (at the inner groove of
All quartz-locked ±8% range
30 cm (12") record
1 .5 kg-cm (1 .3 Ib-in)
Stylus pressure
adjustment range :
0-2 .5 g
0 .7 s . from standstill to 33-1/3 rpm
Applicable cartridge
6-10 g
Electronic brake
weight range :
13 .5-17 .5 g (including headshell)
(with auxiliary
9 .5-13 g
0% within 1 .0 kg-cm (0 .87 Ib-in)
weight) :
17-20 .5 g (including headshell)
0 .01% WRMS*
(with shell weight) :
3 .5-6 .5 g
0 .025% WRMS (JIS C5521)
11-14 g (including headshell)
±0 .035% peak (IEC 98A Weighted)
Headshell weight :
7 .5 g
Rumble :
-56 dB (I EC 98A Unweighted)
120 V,AC,50or60Hz
-78 dB (IEC 98A Weighted)
12W
45 .3x 16 .2 x36 cm
Tonearm section
(17-27/32"x6-19/64"x l 4-11/64")
Type :
Universal
11 kg (24 .3 lb)
Effective length :
230mm (9-1/16")

Advertisement

Table of Contents

   Summary of Contents for Technics SL-1200MK2

  • Page 1 . serious injury or death . " The model SL-11 200MK2 (M) is available in U .S .A . only . *The model SL-1200MK2 (MC) is available in Canada only . SPECIFICATIONS Specifications subject to change without notice .
  • Page 2: Table Of Contents

    SL-1200MK2 CONTENTS PRINTED CIRCUIT BOARD ......11,12 DISASSEMBLY PROCEDURE ......2,3 ADJUSTMENT (Electrical) .
  • Page 3: Parts Identifications

    Lamp caset Fig . 9 Fig . PARTS IDENTIFICATION Arm-height adjustment ring Hinge Balance weight Power switch Strobe-illuminator/ pilot lamp Speed select buttons Fig . 10...
  • Page 4: Arm Base Assembling Procedure

    . ARM BASE ASSEMBLING PROCEDURE 1 . Attach the control ring to the arm base seat . (The 5 . Rotate the control ring and make sure that the arm base control ring should be roated counterclockwise .) shifts within the range of 0-6mm . (See Figs . 14 and 15) 2 .
  • Page 5: Features

    High sensitivity, low mass, gimbal With the SL-1200MK2, however, pitch is variable con- tonearm tinuously (analogically) by up to ±8% under total quartz- The highly sensitive tonearm features a genuine gimbal locked control . The pitch is controlled with a large sliding suspension, the rotational center of which is precisely lever, located to the right of the turntable platter .
  • Page 6: Adjustments

    )MK2 SL-1200MK2 ADJUSTMENTS lections Pitch control (fine adjustment of speed) (See Figs . Adjustment of the tonearm height (See Fig . 22 .) want it . 18 and 19 .) The height of the tonearm can be adjusted up to 6 mm, and...
  • Page 7: Schematic Diagram

    Schematic Diagram (This schematic diagram maybe modified at anytime with the development of SVDSl RBA20 POWER SWITCH 120.6 ~pnai ORG T .I {YtiO--~ iF R601 AC 117V (50/60Hz) R5 4 BLU °} SVORD5.1E R204 2. Braking TP21 adjustment R205 VR201 50KB TP22 R215 4 .7K...
  • Page 8 ,development of new technology .) .213 Ilop D206 5401 D204 D205 STYLUS-ILLUMINATOR WITCH STROBE ILLUMINATOR NOTO : 1 . S201 : Speed selector switch (33-1/3 r.p .m .) in S601 : Power switch in "ON" position . "ON" position . (push condition) The drive circuit IC voltage and wave form are not 2 .
  • Page 9: Replacement Parts List (electrical)

    Please use this part number for parts orders. 2 . © indicates that only parts specified by manufacturer be used for safety . 3 . SL-1200MK2(M) + [MI , SL-1200MK2 (MC)+ (MC1 Ref . No . Ref, No. Part No .
  • Page 10: Trouble Shooting

    TROUBLE SHOOTING Power circuity check Power switch doesn't F1, S601, T1 D1, 61.1 -Q3 operate " TP5 - 20V Reference voltage circuity check It doesn't rotate " TP5-20V Start/Stop switch "push" Control circuity check IC201 " Check voltage and wave X201 form at IC201 Drive circuity check...
  • Page 11: Printed Circuit Board

    + B lines Printed Circuit Board Earth (Ground) lines D202 SPEED SELECTOR SWITCH S20f START/STOP SWITCH D204 D203 POWER TRANSFORMER AC 117V (50/60 Hz)
  • Page 12 5401 STYLUS-ILLUMINATOR SWITCH IC301 AN6682 R401 1 .5K IC302 SVITC4011 BP 2S D389 Q203 2SC1328 - 470 73 . . -8 .2K ~ .Mr305 0 .0012 R21J t~ 16VID0 P2~4~~ .'2 TP27 fi, k 7P74 R221 470 "---Mh-.-" ORG - R 219 :: R216 150F C202 50'11...
  • Page 13: Adjustment (electrical)

    SL-1200MK2 SL-12 ADJUSTMENT (Electrical) Adjustments (Electrical) Notes: 9 Make the following adjustments after replacing parts such as IC's, transistors, diodes, etc. Condition of the set . 1 . Power switch ... . . ON 2.
  • Page 14 IC201 (AN6680) Start Stop Start Stop . Start 2 .5V 2 .5V ® 2 .5VZ,OV 9 .8V 9 .8V Same as at right fl fl OV,?,7. ,V` 7 .5V Same as at right o 9v Same as at right 1 .5V ®...
  • Page 15: Block Diagram

    BLOCK DIAGRAM Position detection coil D201 (33 r .p .m. indicator) D202 (45 r .p .m . indicator) D201 (33 r .p .m. switch) D202 (45 r .p .m . switch) S203 (Start/Stop switch)
  • Page 16 01-2 .3 AC line 50/60 Hz Rectifier IC201 (AN6680) IC301 (AN6682) Speed 0.S.C control 0203 ~ ca C .P S301 S301 PITCH LOCK VR303 SWITCH rtUU'a ~C " tV h 1~...
  • Page 17: Exploded Views

    SL-1200MK2 SL-12C EXPLODED VIEWS POWER CIRCUIT P .C .B .
  • Page 18 TONE ARM and ARM BASE ASS'Y...
  • Page 19: Replacement Parts List (mechanical)

    Please use this part number for parts orders . 2 . © indicates that only parts specified by manufacturer be used for safety . +(MI,SL-120wIK2(MC) +[MC1 3 . SL-1200MK2(M) Part Name & Description Ref . No . Part No .
  • Page 20: Exploded Views

    EXPLODED VIEWS Printed in Japan...

This manual is also suitable for:

Sl-1200mk2

Comments to this Manuals

Symbols: 0
Latest comments: