Technics SL 7 Service Manual

Page 1

ORDER NO. SD8010-1794

Service Manual

Direct Drive Automatic Turntable System

Revise

NOTES:

1. This revised service manual includes the points of change from
SL-7IK service manual (Order No. SD8009-1781),and the related

printed circuit board diagram and adjusting method.

2. For the servicing of Model SL-7. use this revised service manual.
3. SL-7IK service manual (Order No. SD8009-1781) must be disused.

SL-7

E][EK[
[EB], [EG], [EF], [XXA]

SEL-7(K)

,[EK], [XL]),
[EB], [EG], [XA]

*The colors of this model include silver an?
Black. The black type model is provided
with (K) in the Service Manual.

Areas

" [E] is available in Scandinavia.

" [EKI is available in United Kingdom.

[XL] is available in Australia.

" [EB] is available in Belgium.

[EGI is available in European.

' [EF] is available in France.

' [XA] is available in Asia, Latin America, Middle
East and Africa.

SPECIFICATIONS Specifications subject to change without notice.
Weight and dimensions shown are approximate.

I General

Power wpply:
Power consumption:

Dimensions:
(W x H x D)
Woifllt:

I Turntable section
Type:

Drive method:
Motor:

Drive control method:

~ 110-120/220-240V, 50/60 Hz
DC 12V (DC input jack)
20 W (AC)
6W (DC)
31.5 x 8.8 x 31.5 cm
(12-1/2 x 3-1/2"x12-1/2")
7 kg (15.4 lbs.)

Quartz direct drive
Automatic turntable
Auto start/Auto lead-in
Auto return

Auto stop

Repeat play

Auto speed select

Auto size select

2-speed Search functions
Record 'presence detection
Direct drive

Brushless DC motor
Ouartz-phase-Jockedcontrol

I Tonaarm section

Aluminum die-cast
Diameter 30 cm (12 inches)

Turntable platter:

Turntable speeds: 33-1/3 rpm and 45 rpm
Auto speed select
(Manual selection possible)
within 1 0.002%

Speed deviation:

0.012% WRMS

0.025% WRMS (JIS c5521)

1: 0.035% peak

(IEC 98A Weighted)

" Measured by obtaining signal from builtrin frequency
generator of motor assembly.

Rumble: -56 dB (IEC 98A Unweighted)

78 dB liEC 98A Weighted)

Type: Dynamic balanced type
Linear tracking tonearm
4-pivot gimbal suspension

Effective length: 10.5 Cm (4-1/8")

Tracking error angle: Within 1 (11°

Effective men: 9 9 (including cartridge)

Resonance frequency: 12 Hz

Toneern'i drive motor: Coreless DC motor

Technics

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