Technics SLM 2 Service Manual

Page 1

ORDER NO. DA08404007800

Service Manu'l

[XA],

Quartz Direct Drive Turntable System

SI.- MX2

[M], [MC] [E], [EK]
[EB], [EH], [EF], [Ei], [[EC]:
[XM], [PA], [PE], [PC], [XZ]

Areas

* [M] is available in U.S.A.
" [MC] is available in Canada.
* [E] is available in Switzerland and Scandinavia.
* [EK] is available in United Kingdom.
* [XL] is available in Australia.
[EB] is available in Belgium,
* [EH] is available in Holland.
* [EF] is available in France.
* [Ei] is available in ltalv.

* Sets for [M] and [MC] areas are not provided with cartridge. * [EC] 55 available 5" CZEChOSICVakia-
* [XA] is available in Southeast Asia, Oceania, Africa,

@ is the standard mark for the "P-mount" plug-in-connector Middle Near ER and Central SOUth America

system * [XM] is available in Central South America.

' _ . . . _ * [PA] is available in far East PXt

Products carrying this mark are interchangeable and compatible With 7 [pg] is avaiiabie in European Military_

each other. * [PC] is available in European Audio Club.
* [X2] is available in New Zealand.

English
' ' ' Specifications are subject to change without notice for further improvement.
speclhcatlons Weight and dimensions shown are approximate.
I General Turntable speeds: 33-1/3 rpm and 45 rpm

Power supply:

Power consumption:
Dimensions:
(WXHXD)

Weight:

Turntable section
Type:

Drive method:

Motor:

Drive control method:
Turntable platter:

Pitch control:

For USA. and Canada: 120V AC, 60 Hz
For others: ~110-120/220-240V,
50 or 60 Hz

20 W

453 X 17 X 41.2 cm

(17-27/32 x 6-11/16" X 16)
Maximum height when dust

cover is open

45.3 X 43 x 46 cm
(i7~27/32"><16-15/16K18")

12 kg (26.4 lb.)

Quartz direct drive
Manual turntable

Auto lift-up

Direct drive

Brushless DC motor
Quartz-phase-Iocked control
Aluminum die~cast
Diameter 32.5 cm
Weight 2.5 kg (including
turntable mat)

a: 6% range

Starting torque:
Buiid-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 tonearin, but including
Measured by obtaining signal from built-in
frequency generator of motor assembly,

platter.

Rumble:

I Tonearm section

Type:

Eifective length:

Overhang:
Etlective mass:

16 kg~cm
0 9 s to 3371/3 rpm
Electronic brake

0% within 1 0 kg .cm (0.87 lb. in)
0.003% WRMS

0.022% WFiMS (JIS 05521)
:0031% peak (IEC 98A Weighted)

70 dB (IEC 98A Unweighted)
'82 dB (IEC 98A Weighted)

Staticalty-balanced straight
lonearm

Plug»in connector cartridge
system

230 mm (94/16)

15 mm (19/82")

13.5 9 (including cartridge)

Technics

Mususmu Engineering and

Service Company

50 Meadowland Parkway.
Secaucus. New Jersey 07094

Malsushlla Eloctrlc

Panasonic Hawaii Inc.
91-235 Kauhi St. Ewa Beach
PO Box 774

Honolulu, Hawall 96808»077A

Panasonic Sales Company,
Division oi Matsushitu Electric
oi Puerlo Rico. Inc.

Ave. 65 De Infanterla, KM 9.7
Victoria Industrial Park
Carolina, Puerto Rico 00630

of Canada Limited
5770 Ambler Drive. Mississauga.
Ontario, LAW 2T3

Panasonic Tokyo

Matsushita Electric ind

ustrial Co., Ltd.
1~2, I-chome, Shibakoen. Minato-ku. Tokyo 105 Japan

Matsushita Electric Trading 00., Ltd.
P.O. Box 288, Central Osaka Japan

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2. Defective rotation (runaway, unstable)

*In the table, the waveform is measured in rotating mode.

Probably defective circuit Check point Possible cause
Waveform of terminal @ of lC201
20m (33) -
15m: (45) ago?"
1 FG amp. circuit 0.8V '0201
3V
0
Waveform of terminal ® , ® of |CZO1
I l I-*
I l |
-l-l-l-- 8V
| I |
2 Turntable oontorl circuit l | '- SV :gfigl
- 0
II H H 5V
___.____ 0
3. Cueing operation failure
Probably defective circuit Check point Possible cause

DC voltage of 0358 (collector)
(Press the cueing switch)

. . . $304
1 Cuerng elrcult _| 12V 0358
Cueing command pulse
DC voltage of 0357 (collector)
up D
lC303
2 Cueing plunger drive circuit 21V ' 0356, 357
| 15V : Cueing plunger
_ I l 0
down

4. Auto stop and lift-up failure

Probably defective circuit

Check point

Possible cause

0 Trace a 1mm pitch record.

Wavef m f lC307 n P0601
°' 0 (CD p' ) 0601
1 End detection circuit lC307
12V Adjustment of output
L_l 0 voltage
0 Trace the final groove of record.
DC voltage of 0373 (collector) IC303, 304
2 Stop command circuit 7V 0335; :514308
0 371 ~ 373
(Stop command pulse)
3 Cueing command circuit Refer to "Cueing operation failure

previously mentioned.

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