Sony SEQ-300 User Manual

SERVICE MANUAL
US
Model
Canadian
Model
AEP
Model
UK Model
E
Model
PHOTO:
US
Model
Inputs
Outputs
Graphiç
equalizer
BoosVcut
range:
+10
dB
Center
frequencies:
60
Hz,
1S0 Hz,
400
Hz.
1
kH.z,2.4
kHz, 6
kHz, 14kHz
Frequency
response
(with
EOUALIZATION
ON)
LINE lN:
20Hzto
40 kHz
lfu
dB
Harmonic distortion
LINE lN:
Less than
0.008o/o
(at
1
kHz, 1
V
Output)
Signal-to.noise
ratio
(with
EQUALIZATION
ON)
LINE lN: Better
than
100
dB
(A
network,
1
V
output)
Power
requirements
US, Canadian
MODEL:
12OV
AC,6OHz
AEP
MODEL: 220V AC,
-50/60H2
UK MOOEL:
24OV
AC,-ûl6(JHz
E
MODE L: 1 1O-12OV
2ZO-240V AC,
-filffiHz
SPECIFICATIONS
LINE
lN:
Phono
jacks,
245 mV
(-10
dBs), 50
k
ohms
TAPE:
Phono
jacks,
245 mV
(-10
dBs), 50 k
ohms
LINE
OUT:
Phono
jacks,
245 mY
(-10
dBs),
Load impedance:
more
than 10
k
ohms
REC
OUT: Phono
jacks,
245 mV
(-10
dBs),
Load impedance:
more
than 10
k
ohms
Power
consumption
AC
outlet
Dimensions
Weight
5W
10O
W, unswitched
Approx.
430
'
80
x
245 mm
(w/h/dl
(17
x
31h
x
9{r inches)
Approx.
2.3
kg
(5
lb
2
oz)
Accessories
supplied
Connecting
cords
(2)
SAFETY.RE
LATED
COMPONENT
WARNINGI
I
coMpoNENTs tDENTtFtED
By MARK
I
on oorrso
L|NE W|TH Ulnr
l\
oN THE
SCHEMAT|C
DtAcRArrrs
AND IN
THE PARTS
LIST ARE
CRITICAL
TO SAFE
OPERATION.
REPLACE
THESE
COITIPONENTS
WITH
SONY PARÏS
WHOSE
PART
NUMBERS
APPEAF AS
SHOWN IN
THIS MANUAL
OR IN SUPFLETIENTS PU&
LISHED
AY
SONY.
ATÎENTION
AU COMPOSANT
AYANT
RAPFORT
À u
sÉcunlrÉr
LES
COMPOSANTS
tDENrtFtÉS
pAR
UNE
MARqJE
Â
SUR
LES
DIAGRAMMES
SCHÉMATIOUES
ET
LA LISTE
oes
nÈces soNT
cRtrtouEs
pouR
LA sÉctrntrÉ
DE FONCTIONNEMENT.
NE
REMPLACER
CES COM.
POSANTS
OUE PAR
DES PIÈCES
SOIIY DONT
LES
TVUMÉROS
SONT DONNÉS
OEruS
CE MANUEL
OU
DANS
LEs
suppr-Éuerurs
puet-lÉs
pAF
soNy.
ORAP]|IG
EOI|ATIZER
SONY

Sony SEQ-300 Specifications

General

Brand	Sony
Model	SEQ-300
Category	Recording Equipment
Language	English

Summary

Safety Related Component Warning

Safety Check-Out

Leakage Test Procedure

Details the procedure for testing AC leakage from exposed metal parts to earth ground and chassis.

Schematic Diagrams

GE and Power Board Schematics

IC Block Diagrams

IC101, 201 M5229P Block Diagram

IC301 LC7566 Block Diagram

Exploded Views and Parts List

Exploded View and Parts Identification

Provides an exploded view of the unit and a list of all parts with their part numbers and descriptions.

Critical Component Identification

Highlights components critical for safety, requiring specific replacement parts.

Electrical Parts List

Capacitor List

Lists all capacitors with their part numbers, values, tolerance, and voltage ratings.

Resistor List

Coil List

Semiconductor List

Critical Component Identification (Accessories)

Troubleshooting Guide

Common Troubleshooting Scenarios

Lists common symptoms and their potential causes for troubleshooting the unit.