Panasonic SL-1200MK2 Service Manual
Panasonic SL-1200MK2 Manual
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Panasonic SL-1200MK2 manual content summary:
- Panasonic SL-1200MK2 | Service Manual - Page 1
lb) Turntable section Type : Quartz direct drive Manual turntable Drive method : Direct drive Motor : Brushless DC motor Turntable platter: Aluminum diecast Diameter 33 .2 cm (13-5/64") Weight 2 kg (4 .4 lb .) Turntable speeds : 33-1/3 rpm and 45 rpm Pitch control : All quartz-locked - Panasonic SL-1200MK2 | Service Manual - Page 2
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 (Elec.tr. i.cal 9 TROUBLE SHOOTING 10 PRINTED CIRCUIT BOARD 11,12 ADJUSTMENT (Electrical 13 - Panasonic SL-1200MK2 | Service Manual - Page 3
Lamp caset Fig . m PARTS IDENTIFICATION Hinge Fig . 9 Arm-height adjustment ring Balance weight Power switch Strobe-illuminator/ pilot lamp Speed select buttons Fig . 10 10 - Panasonic SL-1200MK2 | Service Manual - Page 4
the parts and check as specified in step 3 . 3 . Hold the arm base and set the red line mark on the arm base to the scale near "2", then turn the arm base clockwise . (See Fig . 12) Note : Take care not to allow deflection of the predetermined positions of the control ring and arm base seat - Panasonic SL-1200MK2 | Service Manual - Page 5
FEATURES Total quartz locked continuous pitch adjustment f8% Quartz-phase-locked control means almost perfect accuracy of turntable rotation . But with most quartz turntables, this accurate control circuit must be cut out when the pitch control is employed . With the SL-1200MK2, however, pitch is - Panasonic SL-1200MK2 | Service Manual - Page 6
pitch control . When the strobe dots in 4 stages marked at the peripheral edge of the turntable appear to be stationary, variation of individual pitches is shown . (See Fig . 19 .) Note : The strobe-illumination of this unit employs a strobe-illuminator LED synchronized with the precise quartz - Panasonic SL-1200MK2 | Service Manual - Page 7
PITCH CONTROL VOLUME 5201 5203 S/S 33 1 5202 D201, 202 SVDSR105C 45 SPEED SELECTOR SWITCH STR( H IMPORTANT SAFETY NOTICE THE SHADED AREA ON THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR SAFETY . WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURER SPECIFIED PARTS BE USED - Panasonic SL-1200MK2 | Service Manual - Page 8
: Start/Stop switch in "OFF" position . (not- push condition) 4 . S301 : Pitch lock switch in "ON" position . (center position) 5 . S401 : Stylus-illuminator switch . S601 : Power switch in "ON" position . 7 . The drive circuit IC voltage and wave form are not indicated in side the schematic - Panasonic SL-1200MK2 | Service Manual - Page 9
on most mechanical parts. 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 . Part No . Part Name & Description Ref, No. Part No . Part Name & Description - Panasonic SL-1200MK2 | Service Manual - Page 10
circuity check " Check voltage and wave form at IC201 Drive circuity check " Check voltage and wave form at IC101 YES FG circuity check " Check voltage on Q203 Control circuity check " Check voltage and wave form at I C201 Pitch control circuity check Check voltage and wave form at IC301, IC302 - Panasonic SL-1200MK2 | Service Manual - Page 11
Printed Circuit Board 2 A B C + B lines Earth (Ground) lines D202 rr SPEED SELECTOR SWITCH 02 S20f 133 START/STOP SWITCH D E POWER TRANSFORMER F D204 D203 G AC 117V (50/60 Hz) BLU H ORG BRN BLU RED - Panasonic SL-1200MK2 | Service Manual - Page 12
5401 BLK NL1 BLK IC302 SVITC4011 BP R401 1 .5K Q203 2SC1328 - 470 E 73 . . -8 .2K 1+ r~ .Mr305 0 .0012 R21J t~ IF. 16VID0 P2~4~~ .'2 ~91 TP27 fi, k STYLUS-ILLUMINATOR SWITCH IC301 ORG BRN AN6682 r T zv RED ORG YEL Q1 2S D389 7P74 BRN RED ORG YEL "R2-2-1-M4h7-0.-" . i H . R - Panasonic SL-1200MK2 | Service Manual - Page 13
SL-1200MK2 SL-12 ADJUSTMENT (Electrical) Adjustments (Electrical) (D 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. Pitch control Center position 3. Speed selector switch 33-1/3 r.p .m . - Panasonic SL-1200MK2 | Service Manual - Page 14
IC201 (AN6680) Start Ot 2 .5V T Same as at right T Same as at right Same as at right T5 Same as at right © 3 .4V T7 OV Stop 2 .5V 41. fluflu w A 6v v.xw x.sv 7 ~oxw i -[A-,-!V 3 .4V OV Start ® OV 1) 9 .8V tov Same as at right - © Ov ®3 , - T 20- ® © sv S .SV - Panasonic SL-1200MK2 | Service Manual - Page 15
BLOCK DIAGRAM Position detection coil 0 U 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) - Panasonic SL-1200MK2 | Service Manual - Page 16
01-2 .3 D1 Rectifier AC line 50/60 Hz IC201 (AN6680) Speed control 0 .S .C IC301 (AN6682) SrtUU'a 16 ~C " tV h 1~ 0203 c ~0 E ca f ~E C .R OSC P .C C .P PF uu c0 CclDi 1 ci _ vCC 23 9{ ! 0 U ~7 ,0Mvn VR303 S301 S301 PITCH LOCK SWITCH - Panasonic SL-1200MK2 | Service Manual - Page 17
EXPLODED VIEWS SL-1200MK2 SL-12C POWER CIRCUIT P.C .B . - Panasonic SL-1200MK2 | Service Manual - Page 18
TONE ARM and ARM BASE ASS'Y - Panasonic SL-1200MK2 | Service Manual - Page 19
be used for safety . 3 . SL-1200MK2(M) +(MI,SL-120wIK2(MC) +[MC1 Ref . No . Part No . Part Name & Description CABINET and CHASSIS PARTS 1 2 34 6 7 8 9 10 SFAD122-01A SFTG172-01 SFTE172-01Z SFUM172-05 SFMGQ20401 SFMG520-31A SFMZ172-01E SFMZQ20-01A SFUP122-12 SFAC122-01 - Dust Cover Turntable - Panasonic SL-1200MK2 | Service Manual - Page 20
EXPLODED VIEWS Printed in Japan 20
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1 -
2 -
3 -
4 -
5 -
6 -
7 -
8
-
9
-
10
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11
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12
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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")