Technics SA-CH750

m BLOCK DIAGRAM
FM ANTENNA
Z!20 (FM FRONT END)
FM/AM
5
“ttt
LA1830-H
SA-CH750
|F AMP, DET/AM OSC,MIX/FM MPX
17 16 15
——
Dae
pete
rLStereo_drive_}y | stereo drive]
SA-CH750
Q153 MS219FPTA
| 1c202 |
Switching
tuner:
(6;
BUFFER
AMP
on/off
Q107(Q108)
Buffer
sa !
Q 151 (Qi52)
tb
(3)
JK201 LC7536 o 9
(173) 4 8
® ELECTRIC Es) G8)
VOLUME 6 8
(26) (25) J(23)
@ ; —_— — — 4 — — — + o
Papen ae aia eee (Beal |
BA4558FTI
BUFFER AMP
CB) Gs)
1 -~-@
;
BA4558F TI
Q352, 354, 361, 362,371
drive
<9 -—_—_—_—_—_wv—
Q201,252
(Q202) (Q204)
Fon
203,251 0301,303
(Q302)
pais Muting
driv drive
HEAQ
{
L
Bcd
ea
i
w
-
°
2w
w
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2
t
et
me
io
BU2040F-T2
|
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>
2
g2
2
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ae
=
:
SYSTEM
CONTROL
|
g
7
|
Ce
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ie
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ee
Control
Q103,
104
For
(GC,
GNJa
=
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|
(0402
|
045!
|
Switchin
'
surround!
I
13
on
/off
rc
er
SSS
SS
a,
=
|
&
z
5
ira
AM
IN
G44
|
z
STRO
|
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RCTR
AM
2
|
5
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|
Z
}
2
LL
x
x
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1
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Y
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rea
24344
e———
patty
fic102
|
PLL
FREQUENCY
ABC
SYNTHESIZER
f
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ce
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8
AB
|
|
ea
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22
14
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ark
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M38102M5147S
BUS
LINE
DRIVE/RESET/HALT
|
at
OuT
SYSTEM
CONTROL
AND
FL
DRIVE
|
—$35.cLk
IN
JK2O1(1/3)
a
ie
$$
2.
DATA
OUT
|
B.
DATA
ZA
B.
DATA
IN
6
|
2
B.CLK
|
eer
z
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é
|
a
2
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2
|
-
th
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|
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ve
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a
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|
be
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ne
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ee
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|
27
26
30.3!
32.
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7
t18
SS
See
as
ae
ae
ar
ae
|
a
ae
es
ee
|
Notes:
lg
|
+8)
1)
(
)indicates
Pin
No.
of
_
|
meet
RCOHC-278-E
2
right
channel
|
0
arom
eas
4
ite
t—pt
I
a
REMORE
|
Oe
|
voltage
SENSOR
|
—>
>
FM
SIGNAL
Ero
aca
Is
|
|
pas
Ee
VR6OI
Z
oy
“ee
lend
AM(LW/MW)SIGNAL
|
(VOLUME)
pus
Dae
acai
MATRIX
jovog>
:
FM
OSC
SIGNAL
|
ag
[ss
©
AM
(LW/MW)
OSC
SIGNAL
|
|
SEC
eEo
|
c==>
:
SURROUND
SP
DRIVE
SIGNAL
|
i
|
For
(GC,GNJareas.
I
---;-----
a
ee
se)
(onto
Se
er
a
=)
+}
2
FL
DISPLAY
FL6O!
~+-—
-29-
~30-