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Technics SU-VX620 Service Manual

Technics SU-VX620
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SU-VX620
|
SCH
EMATIC
DIAG
RAM
(Parts
list
on
pages
26~29.)
1
2
A
Notes:
By]
esi:
Power
switch
in
“ON”
position.
(POWER)
(4L...OFF,
m...ON)
eS2:
Voltage
select
switch
in
“240
V”
positon.
(VOLT
ADJ)
©S101:
Input
select
switch
in
“PHONO”
position.
(INPUT
SELECT)
©S102:
Rec
select
switch
in
“TAPE
2/DAT
®
1”
position.
(REC
SELECTOR)
©S201:
Mode
select
switch
in
“STEREO”
position.
(MODE)
©S202:
Loudness
switch
in
‘“OFF”
position.
(LOUDNESS)
S203:
Source
direct
switch
in
“ON”
position.
(SOURCE
DIRECT)
Cc
S204:
Subsonic
filter
switch
‘“OFF”’
position.
(SUBSONIC
FILTER)
@S501:
Speaker
select
switch
in
“OFF”
position.
(SPEAKERS)
©S801:
Remote
control
input
erase
switch.
(OFF)
e\ndicated
voltage
values
are
the
standard
values
for
the
unit
measured
by
the
DC
electronic
circuit
tester
(high-impedance)
with
the
chassis
taken
as
standard.
Therefore,
there
may
exist
some
errors
in
the
voltage
values,
depending
on
the
internal
impedance
of
the
DC
circuit
tester.
No
mark:
Power
ON
(
D
e|mportant
safety
notice:
Components
identified
by
A.
mark
have
special
characteristics
important
for
safety.
Furthermore,
special
parts
which
have
purposes
of
fire-retardant
(resistors),
high-quality
sound
(capacitors),
low-noise
(resistors),
etc.
are
used.
When
replacing
any
of
components,
be
sure
to
use
only
manufacturer's
specified
parts
shown
in
the
parts
list.
eThis
schematic
diagram
may
be
modified
at
any
time
with
the
development
of
new
technology.
):
When
D810-2
is
lighting
up
Caution!
E
IC
and
LSI
are
sensitive
to
static
electricity.
Secondary
trouble
can
be
prevented
by
taking
care
during
repair.
Cover
the
parts
boxes
made
of
plastics
with
aluminum
foil.
Ground
the
soldering
iron.
Put
a
conductive
mat
on
the
word
table.
Do
not
touch
the
legs
of
IC
or
LSI
with
the
fingers
directly.
Voltage
and
signal
line
:
Positive
voltage
line.
:
Phono
signal
line.
:
Recording
output
signal
line.
F
==>
3
4
ZY
eHoNno
circuit
RIOt
PHONO
SIGNAL
{Lch)
'k
pa
ox
sn
&
|
oT
28
}
{
JKIO!
!
[ene
Oo
PHONO
Bae
O
RIO
390
C105
top
cl23
25V3.3
H
+
Rid
56K
RUT
270
clo7
16V33
ae
cus
cuz
Cll?
S5600P
0.022
50V!I
IK
SU-VX620
SU-VX620
8 9
10
REMOTE
SENSOR
S102
(REC
SELECTOR)
\--+
TAPE
2/DAT
PI
4---
TUNER
2:--
TAPE
2/DAT
5:
-
-
PHONO
3---CD
6:--
AUX
C109
|riz3iRi27
|Ri25
180K
390P|
68
|
12K
ov
-O.1V
[I
©)
©)
Ccil6é
CIl4
5600P
0.022
Ic
101
AN6558F
PHONO
EQ
AMP
REC
OUT
SIGNAL(Lch)
Q8o
ao,
|
UN
el.
LED
6
‘tl
+
|
|
\
I
¢
l
Rooooo
|
Pepeeee
|
al
i
|
ETA
a
ESET
COA
RE)
ESAT
ER
ESE
I7V
¥
eX
ry
CHIBI
TORTI
7
©
mote
TTT]
CNIOS
asoo~a
MAIN
UN4II
|B
|
CIRCUIT
cP103
cP104
cP105
Binks
SWITCH
CIRCUIT
a
0)
O10)
OO
QIAN
sso!
JK8O!
(REMOTE
CONTROL
:
AB
MODE
/OFF)
out
|
|
ear
of
C
INPUT
mrrpOlalolale
pleh
88T
ies
+
SELECTOR
CIRCUIT
cP80s
TUNER
wat
i
OOOO®S
Rch
©
Not
elas
iy
4
CNIO2 cPlo2
iat
R203
)—18)
(INPUT
SELECTOR)
:
ake
as
[eel
Lis.
|
C—O
1s
TAPE2/DAT
2:
-TAPET
on
T
88
1
©)
3--CD
4---TUNER
oe
ob
go
Rees
0;
{¢)
5:PHONO
=
6+
AUX
oe
LRch
go=-
uy
+4
S
ve
4a}
JKIO3
R205
pleh
&g
AUX
R206
L
85.
ve
D810
Reh
$8t
A
LNO38568PH
JKIOG
neat
0810-3
(TUNER)
rLeh
~@
UN4219TA
REC
(OUT)
R222
pelo-2cp)
RELAY
DRIVE
~
[
Rch
-
WA
——
~@
TARE
R207
Tc
0810-I(
TAPE!
ae
Ik
Sa
[.
rl
ch
6
lest
vel
—_—_§—
oe
ae
tg
ABCDE
PLAY
(IN)
2a
RZ08
LRch
G—\
&9>
6.2
v=
R223
ora)
2
G)
JKIOS
470
rRCOlO)
©
CN
804
ruiech
Ad
aeerl
Se
NA
ae
SEE
REC
(OUT)
Rech
ca
ae
Sa
Vea
TAPE2/DAT
|
1K
rlheh
©
ago
he:
PLAY
(IN)
Rao
Le
on
Rech
88
—~12-
=43'=

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Technics SU-VX620 Specifications

General IconGeneral
BrandTechnics
ModelSU-VX620
CategoryAmplifier
LanguageEnglish

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