Pioneer A-09 Manuale di servizio - Pagina 6

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A-09
2. SCHEMATIC AND PCB CONNECTION DIAGRAMS
POWER
L
NPN
ASSY
(AWZ4528)
(ap SCH-6)
POWER
L
POWER
R
PNP
ASSY
NPN
ASSY
(AWZ4529 )
(AWZ4530)
(=> SCH-6)
(=> SCH-7)
POWER
R
PNP
ASSY
(AWZ4531)
(=® SCH-7)
Tt?
portance of the safety factor of the parts. Therefore, when re-
2. Since these are basic circuits, some
parts of them
or the
;
:
:
:
:
placing, be sure to use parts of identical designation.
values of some components may be changed for improve-
ment.
8. SCH—O ON THE SCHEMATIC DIAGRAM:
3. RESISTORS:
e SCH—D
indicates the drawing number of the schematic dia-
Unit: k:kQ, M:MQ, or Q unless otherwise noted.
gram. (SCH stands for schematic diagram.}
Rated
power:
1/4W,
1/6W,
1/8W,
1/10W
unless
otherwise
9. SWITCHES (Underline indicates switch position):
OC DETEC CONTROL
+12V
oe
6
Ala
4
POWER
L
1/0
170
noted.
Si
POWER
auetiaek
ASSY
ae
ascsiabe
tas
Tolerance: (F): +1%, (G): +2%, (K): +10%, (M): +20% or +5% un-
MGS
eee
19) A
At
eee:
14) A
less otherwise noted.
REC SEL. SW ASSY
2sc3iaen
2saszenn
asc3ieen
25al2ese
4. CAPACITORS:
$802
REC
SELECTOR
avs
any
aes,
aes
Unit: p:pF or pF unless otherwise noted.
A <9)
QS A
Ay
14) A
Ratings: capacitor (uF)/ voltage (V) unless otherwise noted.
FUNCTION SW ASSY
ascsiein
Benl2eon
asesiabe
aoa
Rated voltage: 50V except for electrolytic capacitors.
$801
INPUT SELECTOR
4
ae3
'
5. COILS:
"©
3
2S5C3182N
'
A
At
yA
2804793
a1
ced
2SA1837
a2
16Or,
2Sal2esn
Unit: m:mH or pH unless otherwise noted.
6. VOLTAGE AND CURRENT:
: Signal voltage at rated output.
VL
jJor+ Vv:
DC voltage (V) at no input signal unless otherwise noted.
Value in{
) is DC voltage at rated power.
©
mA
or+
mA:
OC current at no input signal unless otherwise noted.
02
A
2SA1837
at
A
2SC4793
CND
on
PHONO
BALANCE
ASSY
aay
(AWZ4864 )
(= SCH-3)
CNSo7
BALANCE
28C4793
2sc4793
Os;
A
CONTROL
DIODE
2
SOURCE!
2-1
+1eM
ASSY
eaunces®
DG DETECT
(AWZ4253 )
:
ees
CONTROL
(=> SCH-8)
3 GNo
+1ev
2
TUNER
fo} REAR
BOX
LC
is
34
cae
J
om
b
J35
J3o
Jay
ACW-133
i:
i
BOTTOM
PLATE
REAR
PANEL
REAR
PANEL
OVERALL
OVERALL