Akai AC-220

AC=220
"'4C=320
KEY/DISPLAY SCHEMATIC
DIAGRAM
CN401 TO CN305 POffli AJIP/E4 P.C.B
RH
1~~;1;: I ~! a ~!ii i~ I
;•I•... I <
0
2 I
REMOTE
SENSER
-
I
R429
D414
R441
~
560 f_(i
9 s <i
9:
R435
750
l/4\o'
560
D41lG~
D401
R459
~
-
D402f G
~
'i\lK
-
r-0 ~S:~413
9014C
C403.L
R492:~
h
-boO ~
R430
!HO!
"
0.01 --
C420
4.7K
r'7
•••
- "'
560
r?r'""'
L401
t C40l
0.22/SOV
ft/
... "'
+N .• ~ 9014C
r-0 ~S:~402
,H5~S~414
0407
lOOUH
D415
R436
6
0.1
R477
C405
R479. ►
t;JR480 •~ 0408
...... f--:-0 :i
, .. -+-o !if
D403f G
~ iG~
560
K
22M 22P(J)
2.2K •~
4.7K ~
~ ::i,: J,
~::: ~ t-
ff:
-
.~ JC gi
/'."! J,
... (\J
... II!
-
R460
f1
D421
°' co
,0 ~~411
~v::415 D404f (
~
~ lK
o~T L
IN4148
'~~S:~403
. I
~
9014C
~ :4 7iJ]~ 0~ ,_
Q402
'
X402
R493
h,;() ~
--~ a I
~B
-
....... ('l ,.
►-
R431 r'7
8MHz
!OK
0"' :i:
~~
... .... u
r-0~!
.......
560
C402
::>••--~~
~~ ~W404
~~~412
I
~~St16
u
47/6.3
R449
..--H) ~
D416
N
4K7
X401
~H) ~
--r-0 "-
t--0 u
D4D5f Q
~ f(~
R437
-
N..,,_., N+
32.768KHZ
C
560
..
I IC401 I
~~~~~~sxe i~di
SW408
..
R495
-
-
R452
a;
ST24COl
~~" X ~ ~ ►~
s
D406f ( ~
""i\lK
~
R442.~
IK
30
CD PltDTO IN a. CJ l;!:i!
TAPE
9014
,,.-Yo
: .
33K
SEL B
TUNE:R
0403
"
~
IX)
ROM CUC
CD!
R432
;::: ""
~"'
-
ROM DATA
CD!
R413
:
R414
R4!5
R416 ...
R496
. ..
SELA
CD3
56.o. /'.,,
... "'
.,- ru
..- ru
3.3K
3.3K
3.3K
3.3K
~
"' Iii
"' ru
VOL STB
S-BASS
"' -
~
lK
VllL DATA
Dlul
D417
[
VOL CLOCK
DIG!
R438
R497
R499
PLL □ UT
DIG3
D407j Q
E) iQ
~-
560
•10K
!OK
PLl CLOCK
DIG-I
PLL IN DIGS
PLL CE
DIG6
C\2
R453
C\/
·~
TUNER NUTE
IC403
DIG7
~
-
tR498~
CD Pll\lER
DIGS
B
D'l08fG~
9014C
"'i\ lK
ffioi!i,: "
Q410
MOTIR CNT4
M38184-XX Xf"P
DIG9
,--0 ~~421 ,
-
MCTDR CNT3
DIG10
k) ~Sr17
'
H)~t23
~~S~426
040'1
~
901'\C
MCTIR CNT2
DIGU
R433
'
M □ T[R CNT1
DIG
r-=O s I--
h.,-Oi
560 1"'1
CD XRSET
D1Gl3
......
f-;P ~
-
1-::0 "' ---
10K
CD 14UTE
D!G14
- ,:,: C
!!:: "'
~ ~ :
(\J ""
..
C
r '1
CD SQSO DIG15
-q-N
,.v "4
... II!
...
h
E- N,C
DIGl6
j.--Oru~S~418
k)~t21_
H)~t2•
k5"~t27
D418
R439
CD SQCK
SEul
D409f Q
~ fG
~:
R4}5
TRK ~DJ SET
SEG2
560
C\2
&V
OVER LOAD IN
SEG3
CD D~H
SEG-4
..._
hR.cl 11:
......
~" -
~u
E5
R454
~1-
!OK
CD CU<
;
SEGS
.
~~.
~
I~
CD JCLT
...
SE
... "
► .......
... ....
.......
D410f@)
~lK
-
- KEY l
CJ
S£G7
~~S~4!9
~~t422 ,
~~~425
~~~428
~
9014C
~
-- l<EY 2
~ w 5 I::!
SEGS
'
Q405
'\
"
~8Qi u ~ ~~,rc-,ru-o
I I I I I I
rO ~
-o a - r--0 ti -
rO ~
R434 r!T
f:~ffi~ ~i~u~~G~SG~G~$
-
loJW .~ s::::l i..J U ~!JWLI.IL&Lll,•U•H.Ju.J
~
.. ,.
>
560
,om
n1I
.
-- ~-
I
D419
R440
-
D411 f G
~UG
9: R425 R426
R427
R428
560
R445
,•R447
•R490
!OK
10K
!OK
!OK
R455
;..,
,_ '► 4.7K
.
...
R450
FLT
C'I':)
"--<
4,7K
...
$!
..
...
....
.
.
.
s
D412 f ~
9 9D14C
'1°\IK
"'
..,:
R473
10K
.
'\
lUI<
t:J
0406
► •R49I
>
·to
..
/'.7
=r z¥
MIC VOL
QJ
►
<!..
..-
M
;:
s~=~
►
,_
,.
-
-
1"
w
...
...
~
""
"'
><
C410 C411
HI
0.01
47/63
□ Ic_s
I
-
"-
rO
.L
I
"
'
T
'""'
-
. '"""
a,vK
R463 R464R465 R466R467 R468 R469 R47~.._
C421
•
R474
•R490
•Ju.91
TUNER VERSION
47K 47K 47K 47K 47K 47K 47K 47K
~ 47DOP<M)
!OK
OPEN
0
S BAND IF/C/ln'/1.F Sffl':6"'""r't•
"'
•••
!II.«
-
- MIC SIi
-
6.Br 81C II BAND IF1C/ll1f S7%/':IS()Jr/QK
4. ?Jr 4. ?Jr S BANI! "/SF Sff/P:60K,/BIC/U
8E ti.IX 1J BANIJ IFIC/11"# 37m':t001f/t01C
JUIC B.2K -
0 OPEN -
AKAl-01249 / Druck 1
39