Technics SH-8028 User Manual

1 2 3 4 5 6
RS
SCH
EMATIC
DIAG
RAM
(This
schematic
diagram
may
be
modified
at
any
time
with
the
development
of
new
technology)
Note
1:
—
;
1.
$1:
Recording
mode
selector
in
“EQ”
3.
$3:
Equalization
switch
in
‘’on”’
position.
5.
$5:
Voltage
selector
in
‘‘220
~
240V”'
position
position.
(
=;
EQ,
M
Straight)
(.-
:;on,
@
;off)
(For
[XA],
[PA]
and
[PE]
areas)
n
2.
$2:
Input
selector
in
‘‘source”
position.
4.
$4:
Power
switch
in
‘’on”’
position.
(=
;tape,
M
;
source)
(=
>on,
@
;off)
(ciot
PP, Se ee eT eR er ne ee AN6555
BUFFER AMP
CG)
Input signal
(source signal)
B (L ch)
(RISO)
LINE IN QO PROCS CELE 1K wot
QI01, 102
LINE
OUT
(Cytron
2SC2878A
MUTING
Output signal iS
eee
(corrected
-
TAPE signal) ; -
ee
PLAY BACK
C
(R ch) |
(R120)
LINE IN
LINE OUT
D oe OUT
TAPE S2
(R122) CINPUT SELECTOR)
PLAYBACK ©-—
ol + fi S&T gs
Recording signal Food | oo ve
rE 0 to |o jo |o” fo
Bi Teclaxl i] (15)—(14)-—=(13)-—(12)- —{" !)
a ae 9 =) 1C 201,202
:
#
M5229P
BPF
: 47K
S| ;
( REC MODE) ze: eR Rt ie ie i ce
$60
O)—(2) =) (4) (5) (5) 7) (8) (9-19)
3
12
O
Oo
A
re)
On
0
ie)
(e)
M4
ce)
0_@
}0
0
g8- | 832 jaet [58+ | 88
SWITCH/JACK CIRCUIT st bbecy:\sey ise lesr ee
wo
Note 2: “ n ou < a
x + -¢ 0% a ="
1. All voltage values shown in circuitry are the *( _) Indicates resistors and 7 os =o sour uo Ke)
. : . K V9 vo o Yo
standard values for the DC electronic circuit capacitors are use product : # "
F tester (high-impedance) with the ground point for [EGA] area.
taken as standard. Therefore, there may exist
some errors in the voltage values, depending on
the internal impedance of the DC circuit tester.
COO
2.—{(_}- Positi : ;
> ositive and Negative voltage supply line.
0101
6.3kHz
160Hz 16kHz
C206
=
O28)
c204
16V220
+
cs
Ci0 0.022
lade
49
be
C2!
I6OHz
C3 25v220
MA 165
C4 25v220
Signal line (Left channel) D103 D105 D107 D109 Dit DUS oe cen Ole D104 0106
ie Aare fn AD fri) fey fa) VAD SAD Wi)
ey ay ay, oJ, ay, ay, WY Nay, Say,
400Hz
c2's8
6)
C22
C220
D110
Sa
LY
2.5kH
-~0-0-O-O-
6-5) 9) -O)-)-) 9
c252
@
>
LN260RCPP x J4
z
SH-8028
'
- off «<«—+ on <i —
= $4
Y. ( POWER)
Oo
QI
2SC!I815
is MUTING CIRCUIT
“ (SWITCH ON)
N
mm
ax
Q2
i x 2SA 1015
tat < MUTING CIRCUIT
Ye m (SWITCH ON)
a
XL
See
(E, EH, EB, EF,EK
,EGA, Ei,
wd
A
AC220V
50/60Hz
(E] [EH] [EB]
[EF] [EGA] [Ei] 4
AC240V
50/60Hz
[EK} [Xt]
(XA, PA,PE)
SSA =
' (VOLTAGE a
At! SELECTOR) I=
te Se wy UO
6) TY) Ho 127 a
CO >
on
2
| | a>
| |
| |
5
OO)
1 | |
| | ACHIO™ 127
4 1 /220™% 240V
DIt2 DI14 [ee os Dy 50/60H2
S449}
6.3kHz "16 kHz
ate | ee

Technics SH-8028 Specifications

General

Brand	Technics
Model	SH-8028
Category	Recording Equipment
Language	English