Technics ST-CH505

ST-CH505 _ $T-CH505 |
—_——ms : Positive voltage line : REC. OUT sig
@ Schematic Diagram eMain, Connection (1)/(2) circuit (parts list on pages 23~27) | ba estat Haat ce Sea : aia
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2
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4
5
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7
8
9
10
MAIN CIRCUIT (PHONO EQ AMP/INPUT SELECTOR/DIGITAL SOUND CONTROLLER/BUFFER AMP/MUTING/REGULATOR )
For For (E,EG) areas,
CE, EG) areas.
R259 R261
180K i2K
c255 C257
R255 c2si
Res (e28f| 0.022 6800P
2 al
r
e zs
O
c209
1aP
28C33I2RTA < - Oo nm
PHONO FILTER AMP 38 [ ay 38 a9|- :
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R351
SK
C373
0.22
-3.5V1-34V1-35V
20 Q
vez
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a
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ay
R256
C252
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3
FT
SF 330 1000P > > Q
1 aux C256 C258 R264
®y 4+ {9.022 6800P_ 68 1c301
e= R256 crea R268 caee M62408FP
RcehO
220
10V33
2.7K
16VIO
ba
a
sue
SOUND
CONTROLLER
R260 R262
(2K
For (GN) area,
180K
E | ° E
o-| @x
ceo! Reo! 55+ BRS col
1evIO 22K OST &N¢ jooP
R393 C377
22K S0V2.2 ‘|
CANCEL SURROUND
c301
Ic6ol
I6VIO
BA4556F TI
BUFFER AMP
c602 R602
16vIO) 22K
REC OUT
SIGNAL (L ch)
a ee ee
ov
—¢
ee Lov J
CO—C9-— 28
CONNECTION( 2
CIRCUIT
NJU7T3ISMT2
INPUT SELECTOR
E mG ee a
Tee re ot eve ttt a
CCNION) Pp ~—h—
(Pane 8) 30 ty
+02) pt)
fay CONNECTION (1
CIRCUIT
Q601,603
2SJIG4QRTA
SWITCHING
F to EN tuner
ciRcuIT
(CN102)
(Page 8)
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