Pioneer SX-2300 Service Manual page 8

7
1C401, 1C402 : GRAPHIC EQUALIZER
GRAPHIC EQUALIZER
S302 kHz 3.3kHe Oke
4. S03 =VR407 130k x2
0605
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0606
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ove
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330p
5V (BACKUP)
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xa
IC601
REGULATER
0605 R66
lescze7e 27k F Re 6i7
(41.4v)
L-t=
(SX-2300/KUC and SD)
'APCTEMIZH
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10/50v
et
TUNING TUNING
DOWN ft ur yx
$7ol x $702 0
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s705 9 | s706
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iss Qt AUTO/MONC TO/MANU
ss Sr! ia, nad / Mal
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Is7i7_ 0 87200
TAPE 2
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$4 (6d568)
Be 1s$252
(35.7V)
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'ACN-209
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(8X-2300/KUC, Sx-1300/KUC) _g
TUNING
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) PARTS NO.
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(8X-2300/SD, SX-i300/SD)
1701: MICROCOMPUTER
(f) 3a
26 RY ON/OFF (9) 39) 27 FUN (ST)
#2
$X-2300/KUC
oovkuc | SHORTING | SHORTING
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300/SD
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POWER SW Ass'y
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Anestoor
s
The numbers enclosed in< > are for
ATS1118 components.
AWZ1496
ADG 1031
AC 120V GOHz
- NS OT -
pSxrzsoormucendso! Le - -- - - - - - - - e n- 4
! SP SWITCH Ass'y AWZ1493 SP TERMINAL Ass'y . |
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(Sxris0o/mucands0) H+ — --- 7
| SP SWITCH Ass'y AWZ1499 SP TERMINAL Ass'y AWZ1500_ |
| | SP-A SP-8 \
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330(1W)
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SX-2300, 1300/SD MODEL!
pea —-—-—- — ae se 1
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! - — POWER TRANSFORMER
! 1 Tt FATSI129(ATS1130) |
| cri) 22 cry |
| a |
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| |
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| LINE VOLTAGE SELECTOR !
] $2: AKX-507 |
| |
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| I
| 0.117125
| |
| |
| |
| A |
| AC 110V,120Vv, |
220Vv, 240V
H ACPOWERCORD 50/60Hz |
| ADGIONS |
|
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10 11
12
1, RESISTORS:
Indicated in 2, %W, /eW,+5% tolerance unless otherwise noted k :kQ,
M : MQ, (F) : £1%, (G) : £2%, (K) :+10% (M); £20% tolerance
2. CAPACITORS:
Indicated in capacity (uF)/voltage (V) unless otherwise noted p : pF
Indication without voltage is 50V except electrolytic capacitor.
3. VOLTAGE, CURRENT:
S_] : OC voltage (V) at no input signal
Value in( —_) is OC voltage at rated power.
<5 mA: DC current at no input signal
4. OTHERS:
mp : Signal route.
@ : Adjusting point.
The mark found on some component parts indicates the im-
portance of the safety factor of the part. Therefore, when replacing,
be sure to use parts of identical designation.
> marked capacitors and resistors have parts numbers.
This is the basic schematic diagram, but the actual circuit may vary
due to improvements in design.
5, SWITCHES
S701: TUNING DOWN
$702: TUNING UP
S703 FM
S704: AM
S705: 6/18
S706: 5/17
S707: 4/16
S708: 3/15
S709: 2/14
S710: 1/13
S711::12/24
$712: 11/23
$713: 10/22
S$714:9/21
$715: 8/20
s716:7/19
$717:SS (SD MODEL ONLY)
S718:MEMORY
S$719:MEMORY SCAN
$720: FM AUTO/ MONO
$721: TUNING AUTO/MANU
S722:TAPE 2
S723:TAPE1
S724:VCR
$725:CD
$726 :TUNER
$727 :PHONO
st : POWER
S851-1 : SP—A ON-OFF
$ 851-2 : SP—B ON-OFF
$852 :SURROUND ON-OFF (SX-—23000NLY)
$854 : SURROUND LEVEL L/M/H
s3 : (SD MODEL ONLY)
Note : This general circuit diagram is based on SX-
—2300/KUC.
© Components marked with * for SX—2300 differ
from those for SX— 1300. Figures enclosedin({ )
are for SX— 1300.
¢ Figures enclosed in __] indicate DC voltage
values when SX— 1300 has received no signal.
¢ Figures enclosed in ( ) indicate DC voltage
values when SX— 1300 yields rated output.
* Circuits enclosed in' ~"} are necessary for the
specified models.
¢ Assembly Nos. in red are for SX— 1300.
12