Akai AM-M459 - Page 21

OPTICAL
DIGITAL
INPUT
x
J3 TORXI72
DIGITAL AUDIO 1/0 DATA
ie
FEED
BACK
[
“IC6BAI5218P.~=«*d:
|
|
|
IC7
| apices
L.P.,F EO L- CHANNEL
peat | VL I to VL3 BAI5128P
1C 4 PCM56P D/A CONV - OUT
PLL
A UNLOCK
4 MUTE
D E- EMPHASIS a
-—-S OOO TRIO
CONVERTER I6Bit D/A
TO MAIN PCB
JW1l108
ANALOG
AUDIO OUT
R- CHANNEL
PLL
ea UNLOCK
VLIb to VL 3b
FEED BACK
| MUTE
5 |
—r—" TRIOb
PLL CIRCUIT
bes
DE- EMPHASIS
ie} a Qa =z
a
1/0 DATA
RECEIVER & DEMODULATOR
cs
UN - LOCK MUTE
UNLOCK
RX
DIGITAL
Ww
nn
J
a 3
fo}
x na}
° 2
IC 3 74HCO4 3 ?
al
DIGITAL Aupio +70 pata VAR T= 50n sec a
1C3 74HCO4
‘APPROX
:
400HZ
TO
FRONT
PCB
Ss TR308 ‘Gaston
TRB
=.
PLL
—
UNLOCK
LOCK
co <a D
©
A Jl TO FRONT PCB
JW 302
cD
FROM
FRONT PCB
Ic 302 AM-M659
D/A CONVERTER
BLOCK DIAGRAM
no.2-2 ABO2204D
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cn
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es
ae
ed
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