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Aiwa HD-S1 Service Manual page 11

Digital audio tape recorder
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BLOCK
DIAGRAM — 2 (REC/PB
AUDIO)
< REC
AUDIO
BLOCK >
IC 2 HM65256BFP- I5T
256K
bit
IC |
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MAIN
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AMP
C.B
SWH
REC/PB
PL AREA
i.
SFRI,2
REC CURRENT
ADJ.
HO 4921 IBFS
5
(OSP LSI)
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DIGITAL 1/0
DIGITAL IN
DIGITAL
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|
IC}
Ta
DIGITAL OUT
INTERFACE
BLOCK
HAI2ZI33MP | |(REC AMP)
BLOCK
|
Vref
14
INTERPOL A-
=a
MUTE
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@
REC DATA
2
MeL OUT
SWH
FROM PB BLOCK
_ {(MONITOR
OUT)
Es
&<-FROM SERVO
3R OUT
TO PB BLOCK
A/D, D/A
Fe be LRCK
ONELOR-OUTE "| CONTROL
ADAPTOR
BCK
Pr |sr0cK
(HDA-1) | 7
37 6320MH2_ 4X! 63
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||
24.5760MHz
iX2¢
LP INTERFACE
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BLOCK
IC4
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BLM41A04
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23K4)—6)
|
CDATAO
FCH
i
CDATA |
TO SERVO IC{FCH | »—_
TO pP
(C8)
"loses
eck
cici2)
CTRL
<PB
AUDIO
BLOCK >
MECHA PRE AMP C.B
IC2 HM65256BFP-I5T
meh
SWH
:
256K
bit
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RAM
IC |
(PB EQ AMP)
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HD49211BFS
ATF RF} TO SERVO IC
|
6) ~6863~-60-—
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INTERFACE
1C 2 HAI2ZO62AMP(DATA
STROBE)
DIGITAL
69
| INTERFACE
(3)
wave'
che
BLOCK
5
|
REC/PB
=
a
(3)
LIMTER
y
ee
| }
Block
INTERPOL BS
MUTE
LS
BLOCK
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|
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ERROR
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CORRECT
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EQ |
[VEO ADS) 14 |e
BLOCK
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ores
S1 SERS
[STROBE]
JP INTERFACE
hh
[es]
SFR5,6
IERROR RATE ADJ
|
CDATA O
CDATA |
TO wP
CCK
FCH! }TO SERVO
aci2)
SREF
ic
CTRL
(C8)
17
c.B
DIGITAL
OUT
REM
XMUTEL
XMUTE D/A
cme
69 IC14_ SAA73206P
{1-BIT D/A CONV)
2ND
NOISE
SHAPER
18
MECHA
er
ROTARY
HEADS
DIGITAL
IN
J2
DIGITAL
1/70
=
ICI7
NJIM3414M
Jl
PHONES
|
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oy
VRI-2
L OUT
R OUT
ICI7
J4
TO
ADAPTOR
(HDA- 1)

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