Technics SH-9020 - Page 7

D
@
FULL
WAVE
RECTIFICATION
,
LOG
AMP,
BUFFER,
HOLD
AMP,
METER
DRIVE
&
POWER
CIRCUIT
BOARD
3
TR 201, 202
25C1327
IC
201,
202
TR
304
VINJM4558DG
2SA721
TR 302
2SA794
TR301
2SC1567
IC 203, 204
SVINJM4558DS
TR
203,
204
Fs
400mAT
2SA798 a.
P.T. (Brown)
T R305, 306
2SC1327
IC 205, 206
SVINJM4558DS P.T. (Orange)
Fa 630mAT
TR211~214
SA791 P.T. (Yellow)
TR307
2SA777
TR 209, 210
2501327
TR215, 216
28C1327
TR217, 218
2SA721
| | SH-9020 [9]
mw SWITCHES CIRCUIT BOARD
INPUT 1
INPUT 2
Source
selector
Sensitivity
@
Peak
hold
©)
@
Peak
(@0dB..+
20cB)
@
Average
5
©
=
(9)
(7)
>
©
a
-
=
-
:
=
S
-—
>
Oo
c
=
)
:
=
mo
fe
g
r
a
r
rag
(i
.
fi)
2 se
D|1O © © O} © #2
DNO o! |... OO . @ cp
“10 9 | 35
PO") | OF
INPUT 3 INPUT 3(SPEAKERS)
TERMINAL IMPEDANCE SWITCH (S6)
m= PEAK HOLD CIRCUIT BOARD @ TERMINAL GUIDE
2SA721 , 2SA777
25C1327
TR401~404
2SK30A