Schematic Circuit Diagram - Pioneer KEX-900 Service Manual

4. SCHEMATIC CIRCUIT DIAGRAM (KEX-900/ES)
DISPLAY UNIT
FL TUBE : CAW1004
CH @® SEEK
MS B.S SCAN
G.EG?70pnSL.S-HI
MAIN SUB
mS
FL G3
n—f
§5)
: &
eet
MRO (4)
ii i
ACC} @)
NC ig) t
LED-1
LED-2
ie © OG LED-3
NOTE :
—co— Indicates a chipresistor.
—t#— Indicates a chip capacitor.
4 -m— Indicates a printed resistor.
Consists of
Dolby NR. P.C. Board
G.E. P.C. Board
C. Switch P.C. Board
Connection is viewed from
the direction of the arrow.
18 4
FMI FM2 FM3
MONO CXIC
AM! AM2 TV
VOL LOUD AUX
a
Ic901
PD-4092A,
System Control 7css1012
D908 D908~910 : 1$$133,
US1040M of 183176
0901~903 : 8G4524K
0904~907 : BGS724K-P
SENSE
P.C.BOARD (A)
SWITCH P.C.BOARD
HO1; HEAD UNIT
CXA1214
MOTOR
(HEAD)
CXM-452
MOTOR
(CAPSTAN)
CXM~161
P.C.BOARD UNIT (1/2)
P.C.BOARD UNIT (2/2)
YOO)
[O©
GNO
R-CH
| - tore
(PK we
2 Os
ora a
Q7
DATA O-
sck Oo
cE 1>—(2)
[aux]
ILLUMI +B
CONTROL UNIT
VR251, 252 : CCP-315
c2s3
4.77/35
BACK UP_ >——
~—— ILLUMI °B
PRE AMP UNIT (CWWI1033)
7.9) (6)
ea |
oD 3 are dy
TUNER-L >—=o-
Dolby NR
DOLBY NR P.C.BOARD
TUNER-R -<————
0261: 181555 or
US1040
Q722 : DTAI43ES of UN4122
Q723 ; DTCN4STS of UN4215
R780
22k
C629 R639
47/35 22k
641
RINT
R-IN2
swe
sw3
Swi
stt
sT2
sT3
Ic601: TA7TS55as
Q709 :
PT unai22
a nas sy 9709
oP oreo: ey yey 7
DTAI43ES or | 2SDI055F.
O715 ¢
or 1$S133.
8.5v Q720 8.5V
¢ <7
G~) Rp) 4.4v R746 (| RAT
Wk 12k
R776
Drs 22k [TT cr3e+
(i, 100/16 *
5 a
cray e737 [] []2ze°
[| |
0.047
OO/16 OT
feo Q710;
1 ores | DC-DC Converter __ D722 : ERAIS-O2vH BT 8 DTCHA4TS or UN4215 cas
+ | ae
a [erie vmmacce acs wrzeu { _} 1 |
™ Q7igé = c715 | (DOLBY NR ON/OFF i=
Ks) 2502406 or 25¢17408 Tone H ooay Bre
Ko) 2 Q712, 713: mae 0703
(3) || OTCI4TS of UN4215
le 70S fan k 70S
i as
2)
DPF [oa yg I |
go = = re
a
3o1O 40M 188176
iT , kg} —— eee
Ks) BEEP -——
(2)
RESET
Ved
iy -
Ks) peEP «s —__—_—
(2) >]
R7O3 5.6V
B9 Ms >——— I
vaxd R737,
2k 1c701 'o) DRIVER UNIT (CWW1032! poscesa
Be 32
os R737~739 au
Ko} 470(1/2w)) 30
Ks) We ®) Deck Driver 29
if
ee a
z
4
27
26
z 7 stay 2>— zs ms habe
sts
: rssh
s
Nok Ga ee ee 8 " was [22
7 a
Dovey B/c =
0.047 x3 [A
PA3019 RES >————
DOLBY ON/OFF f=
0.047 x2 19 i wR
rm 5 ray eR
lo
= &)—|
SR
wR
a 13
2
a nN
Y 10
im
=
aR
Sy 7R
S zs
5
4
0702:
3
RDGR2USB2 or 2
MZS6R2IB2 1
Q703, 704 : ILLUMI #B
@ swa DTCI4TS of UN4215 ee es
my
omm eae
Ke) sw2
ie swt
ved
(13) sT1
2) ee st2
o PT ors
AUX +8 AUX +8
ILLUMI +B (LUMI +B
{MRO
MUTE >