Technics SLQL 5 Service Manual

Page 1

ORDER NO. DADB4030069C1

Service Manual

Quartz Direct Drive Automatic Turntable System

ml is the standard mark for the Pvmount piug-in-connector system.
Products carrying this mark are inter-changeable and compatible

with each other.

The cartridge shown here is an option.

SL-QLS

[MLIMC]

Areas

N
' [M] is available in USA.
' [MCI is available in Canada)

Specifications

I General

Power supply:
Power consumption:
Dimensions:

(WA H x 0)

Weight:

I Turntable section
Type:

Features:

Drive method:
Motor:
Drive control method:

Spec-floations are subject to change witttOut notice for further improvement.

Weight and dimensions shown are approximate

120 V AC. 60 Hz

10W

43 x 8.8 x 35 em

(16-59/64 x 3-1/2" >< 13-25/32)
43 x 38.5 x 35 cm

(ts-59764" x 15-23/64" X
13-25/32")

(Maximum height when dust
cover IS open.)

51 kg(11_2lb,)

Direct drive

Fully automatic turntable
Auto startiAuto lead-in

Auto return

Auto stop

Repeat play

Auto speed select

Manual speed selection possuble
Auto Size select

Record presence detection
Direct drive

Brushless DC motor
Quartz-phase-Iocked control

Turntable platter:

Turntable speeds:

Wow and flutter:

' Measured by obtaining Signal from burIt-in irequency
generator of motor assembly.

Rumble:

I Tonearm section

Type:

Ettectlve length:
Tracking error angle:
Eltoctlve mass:
Resonance lrequency:
Tonearm drive motor:
Phone cable
capacitance:

Aluminum die-cast
Diameter 30 cm (12")
334/3 rpm and 45 rpm
Auto speed select

(Manual selection possuble)
0 012% WRMS

0025% WRMS (JIS 05521)
$008596 peak

(iEC 98A Weighted)

56 dB (lEC 98A Unweighted)
78 dB (lEC 98A Weighted)

Dynamic balanced type
Linear tracking tonearm
4-pivot gimbal Suspension
10.5 cm (4-1/8")

Within 10.1

9 9 (including cartridge)
12 Hz

00 motor

150 pF

Technics

Matsusnlta Engineering and
Service Company

50 Meadowland Parkway.
Secaucus New Jersey 07094

P O Box 774

Matsushita Eiactric

Panasonic Hawaii Inc.
91~238 Kauni St Ewa Beach

Honolulu. Hawaii 96808-0774

Panasonic Salas Company.
Division at Matsuanita Ela'ctric
oi Puarto Rico. inc.

Ave. 65 De Inlantena. KM 9 7
Victoria Industrial Park
Carolina, Puerto Rico 00630

at Canada Limited
5770 Ambler Drive. Mississauga.
Ontario. LAW 213

Page 2

I CONTENTS

Page

SAFETY PRECAUTION ............................... 2 RESISTORS AND CAPACITORS ..................... 13
LOCATION OF CONTROLS .......................... 3 REPLACEMENT PARTS LIST ........................ 14
DISASSEMBLY INSTRUCTION ....................... 4 EXPLODED VIEWS .................................. 15
HOW TO SET THE TONEARM DRIVE ROPE .......... 7 CIRCUIT BOARDS AND WIRING

HOW TO REPLACE CHIPS ........................... 8 CONNECTION DIAGRAM ....................... 18
MEASUREMENTS AND ADJUSTMENT ................ a SCHEMATIC DIAGRAM ............................. 21
TROUBLE SHOOTING .............................. 1o BLOCK DIAGRAM .................................. 24
FUNCTION OF TERMINAL (MN 1425 FPC) ........... 13 PACKING ........................................... 26

I SAFETY PRECAUTION

Before servicmg, unplug the power cord to prevent an electric shock.

When replacing parts, use only manufacturer '5 recommended components for safety.

Check the condition of the power cord. Replace if wear or damage is evident.

After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields. etc.

Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to
prevent the Customer from being exposed to a shock hazard.

UPS-0N3

o INSULATION RESISTANCE TEST

1. Unplug the power cord and short the two prongs ol the plug with a iumper wire.

2. Turn on the power switch.

3. Measure the resistance value with ohmmeter between the iumpered AC plug and each exposed metal cabinet part, such as
screwheads antenna, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M9
and 5.2MS2 to all exposed parts. (Fig, A) Equipment without antenna terminals should read approxrmately infinity to
all exposed parts. (Fig. Bl

Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.

Antenna
terminal 3 f
l
l
I

Exposed Exposed
metal metal
part part
f\ /'\
@Ohmmeter KS 7 Ohmmeter
(FigAl (Fig. 8)

Resrstance = 3M9-52 MQ Resistance = Approx 00

4. II the measurement is outSide the specified limits, there is a possibility of a shock hazard. The equipment should be
repaired and rechecked before it is returned to the customer.