Technics SLB 21 Service Manual

Page 1

ORDER NO. 808205218708

ervice Manual

English

Turntable System

SL- 821 /( (K)

[E].[EK].[XL].[EG].[EB],[EH].

Areas

[EF].[Ei],[EC].[XA].[XM]

.........1

[Eli
[E
[XL
[EG]
[EB]
[EH]
[EF]
[Eii
[EC]
[XA]

W

is available in Switzerland and Scandinavia.

is available in United Kingdom.

is available in Australia.

is available in F.R. Germany.

is available in Belgium.

is available in Holland.

is available in France.

is available in Italy.

is available in Czechoslovakia.

is available in Southeast Asia, Oceania, Africa,

Middle Near East and Central South America.

[XM] is available in Central South America.

,/

The colors of this model include silver and black.
The black type model is provided with (K) in the

Service Manual.

J

Specifications

I General

Power supply:
Power consumption:
Dimensions:

(WY-HT: 0)

Weight:

I Turntable section
Type:

Drive method:

Motor:

Drive control method:
Turntable platter:

Turntable speeds:
Wow and flutter:
Rumble:

I Tonearm section
Type:

Effective length:
Overhang:

Specifications are subject to change without notice for further improvement.

Weight and dimensions shown are approximate.

220V. 50 or 60Hz

2 W

43X 11 X 37.5 cm
(16-15/16"Y4-11/32">I 14-3/4)
Maximum height when top

(dust caver) is open.

43 X 37 X 42.5 cm

(16-15/16" X 14-9/16" 16-23/32-"i
3.2 kg (7.1 lb.)

Automatic turntable

Auto return

Auto stop

Belt drive

DC motor

DC servo control
Aluminum die-cast
Diameter 304 cm (12 inches)
33-1/3 rpm and 45 rpm
0.045% WRMS (JIS 05521)
:006% peak

(lEC 98A Weighted)

~70 dB (lEC 98A Weighted)

StaticalIy-balanced straight
tonearm

Plug-in connector cartridge
system

230 mm (9-1/16")

15 mm(19/32") I

Tracking error angle:

Effective maaa:
Stylus pressure
adjustment range:
Applicable cartridge
weight range:
Phono cable
capacflance:

I Cartridge section

Type:
Magnetic circuit:
Frequency response:

Output voltage:

Channel separation:

Channel balance:

Recommended load
impedance:

Compliance (dynamic):

Stylus pressure range:
Weight:
Replacement stylus:

Within 2°32' at the outer groove
ot30 cm (12") record

Within 0"32' at the inner groove
of 30 cm (12") record

7.5 9 (without cartridge)

1.2520259
69

100 pF

Moving magnet stereo cartridge
All laminated core

10 Hz ~ 30 kHz

20 Hz ~ 10 kHz :1 dB

2.5 mV at 1 kHz. 5 cm/s. zero to
peak lateral velocity

(7 mV at 1 kHz. 10 cm/s. zero to
peak 45° velocity [DIN 45 500])
22 dB at 1 kHz

Within 2 dB at 1 kHz

47 ko~100 k0

12 \< 10 " cm/dyne at 100 Hz
1.25 :025 g (12.5 :25 mN)
6 g (cartridge only)
EPS~24CS

The power supply for this unit varies depending upon the areas.
Also, the parts used for power supply are different. 80, refer to
the circuit diagram and the replacement parts list.
220V (SO/60 Hz) for Continental Europe.

240V (SO/60 Hz) for United Kingdom and Australia.
110V/120V/220V/240V (50160 Hz) for other areas.

[XA and XM areas] for other areas is provided with voltage selector.

Technics

Matsushita Electric Trading Co., Ltd.
PO. Box 288. Central Osaka Japan