Dual 622 Service Manual

Contents
Page
1
Technical data
2
Audio connection
diagram
3 Wiring diagram
4 Dual EDS
500 eelctronic direct drive system
4
Replacement of
motor electronic
4
Replacement of
motor mechanic
4 Adjustment of nominal speeds
4 Setting
78 rpm
nominal speed
5 Stroboscope
5 Pitch control
5 Tonearm
and tonearm suspension
6
Removal of
tonearm or spring
housing
6
Removal of
tonearm compl. with
tonearm suspension
6
Adjustment of
tonearm suspension
6
Fitting 1/2 inch pick -up
6
Antiskating
control
7
Cue control
7
Replacement of
cue control assembly
7
Tonearm Control
7
Muting Switch
8
Continuous Play
8
Start
8
Manuel Start
8
Stopping
9
Shutt-off
Mechanism
9
Adjustment Points: Tonearm set Down
Point
9 Shut
off Point
9
Tonearm does not set down
9
Vertikal
Tonearm lift
10
Correct
nominal speed obtained only at
extreme setting of pitch control
10
Platter does not start
10
Tonearm does not set down correctly
10
Motor does not
shutt-off
10
Acoustic feedback
1 0 —
13
Replacement vvith exploded views
14
Lubrication
Fig. 1 Audi
Connection Diagramm
Kontaktplatte
Contact plate
Plaque
de contacts
rechter Kanal
right
channel
Canal droit
Kurzschließer
Muting switch
Court-circuiteur
/ — \
rot / red / rouge
/ s
r
I 1
I
I
I
I
grün / green / lieft ‘, /
\ /
\_,
schwarz
/
bleck / negro
,-,
blau/blue/bleu / \
/ \
1
I
I
I
I
weiß / white / blanc \ /
\ /
\ —/ L
linker I.anaI
left channel
Canal
gauche
Cynchstecker
DIN-Stecker 5-polig
phono plug DIN-plug 5 pin
fiche cynch
fiche
DIN 5
püles
•
Masse draht
Mass
lead
Mass cäble
•
•
2

Dual 622 Specifications

General

Brand	Dual
Model	622
Category	Speakers
Language	English