Block Diagram (Amp. Section) - Hitachi D-900BS Service Manual

BLOCK DIAGRAM (AMP. SECTIONI
SIGNAL
FLOW
(___-
MUTING)
AMP. RVz
Q3L.R
zSC458LG
LINE AMP.
D-900
029
K8265
D30
KB
265
LEVEL SHIFT
tc2
H4il226
REC.DOLBY
NI
----l
HAn226
PLAY
OO
D7
L.R
ts2473H
D8U
R
I
N34A
Q?t.22
25Ct740
MULTI
VIBRATOI
FOR
'ITAPE"
''SOI
FLASHING
IgXHZ
TRAP
OOLBY NR
rctL.R
HAr406
MIC/DIN
REC
SIGML
J2L
(BS;
PLAY
SIGÍ\AL
QIL.R
2SC458LG
LINE
AMP.
;
QzL.R
2SC458LG
Ql9
L|NE
AMP.
J2R
lMrc,Rtl
J4
lorNl
23Ct740
DCCS OSC.
tc8
HAt452
LINE
AMP
Q6L'R
2SCt740
DOLBY NR SWITCHING
r
c
7L.R
HAt406
HEAD
AMP
RTIOL.R
SIGNAL
QI7L.R
25D467BC
tvlurlNG,eTsp
earr;E1
c
+B
s2
st
TI
DI5
POWER
wo6A
TRANSFORMER
pOWER
REc
Dt6
wo6A
POWER
RECT.
I
ar8L.R
2SCt740
PLAY
EO.
N
o
Ql2L.R. 2SCt740
DOLBY
NR
SWITCHING
Q26.
2SCIO6t
Dt7
.
HZ|S
T.
STAB.
*e
AC
POWE
SOURCE
AC
POWER
CASSETTE
D27
-B
D27
wo6A
POWER
RECT,
LEVEL
METER
ILLUMINATION
-37
-
Q25. 25A673
D
l8'
HZr5
VOLT.
STAB.
HPS
25C4 58L.G
RECORD
LEVEL
LINE (C,
AU)
LINE/DIN
( BS,FS,
W)
2SCl740S
PLAY
SIGN.
ILLUMINTfON
PLAY
SIGNAL