Onkyo TA-2058

BLOCK DIAGRAM
P, B, AMP P.B DOLBY BIAS DOLBY AMP AMCS
LEVEL BUFF TRAP DECODER AMP METER AMP
Q101,Q@103. R123. -Q107 L101 Q111 0501. Q506 Q305 METER
11,
| | SEARCH D311, 0313
MICRO ener
P.B. HEAD —> | | COMPUTER _— |
120ys
TER
DIN INPUT(OS 70 us 13
| | OIN ACCU ADJ
* DOLBY NR MICRO REMOTE KEY
|_|
ty
_
INPUT
LEVEL
IN;ouT
[|
|
COMPUTER
CONTROL
INPUT
DIN OUT INPUT \O LINE B/C
a wneut, obey olay <
SELECT ILTE
on.
(8
Q601-Q109
L107
>
(5)
HEAD
PHONE
MUTE S16 | OUT
aig |b ete =| yy MECHANISM
6 HEAD PHONE
AMP
DOLBY AMP Q301 Q701 MICRO COMPUTER
ENCODER
pay a MeRO WY JooLBy. 9113
LINE INPUT ‘@A COMPUTER FILTER
a ACCU A606 ON/OFF LINE
| LEVELAANE MUTE
| R532 Q610 Q117
LINE OUT INPUTI|@}
\
\Z
i
ACCU REC
MIC AMP BALANCE LEVEL
Q125
R531
R401
POWER
SUPPLY
Q702
MICRO
COMPUTER
a7
Q901 +12V
ae ACCU a
MIC INPUT © > | RS # >
MECHA. REC
swe DL MUTE
Hie
Q902, -12V
Q401
N/H/M 0
Q611,Q612 BIAS OSC.
Z401 9
BIAS
CONTROL
|
0904,
+12V
Q411.
Q414
Q905
0726
(MOTOR)
B ACCU A,
sg D/A OUT 7,
SV
BIAS CONTROL ERASE Monitor REC. 0303 ,
R HEAD » COMPUTER HEAD
COMPUTER BIAS