Yamaha 505 Service Manual Page 42

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ABCDEFGH
1
2
3
4
5
6
GX-505/GX-505VCD
PRINTED CIRCUIT BOARD (Foil side)
48 49
12V
-12V
L
E
R
DGND
U5.6V
SYSI
CDCE
CDRES
SYSO
SYSCK
VSEL
AGND
AGND
STEIN
STAD
TUDATA
TUCLK
TUDO
TUCE
TUMUTE
12V
TUR
E
TUL
5.0V
DGND
DSEL0
DSEL1
VSEL0
VSEL1
/ VCR
12V
KEY1
KEY1-1
KEY2
KEY3
KEY4
DGND
FAC1
FAC2
12V
-12V
-27V
26V
+12M
KGND
-LB
PREOC
AGND
PREOL
DGND
PREOR
IPRT
SRON
VPRT
THER
UGND
MUTE
-LB
KGND
FAN
SUBE
PRON
SUBB
ACIN
DGND
U5.6V
12V
AGND
-12V
DGND
U5.6V
12V
AGND
-12V
5V
HPIN
HP.GND
MUTESW
-
YMA
E
E
E
E
+12V
MDJA
DGND
5V
HP.R
HP.L
-
-
TUNE.RIN
TONE.LIN
TONE.ROUT
TONE.LOUT
-12V
5V
MDJB
E
LIN
E
RIN
E
MIC.ROUT
E
MIC.LOUT
E
-
-
MICSW
LACTH
CLOCK
DATA
HP.GND
HP.R
HP.L
E
TONE.RIN
TONE.LIN
E
TONE.ROUT
TONR.LOUT
CLOSE.SW
OPEN SW
CLOSE
OPEN
E+
E-
Rch+
Rch-
Lch-
Lch+
AGND
MA
MB
DGND
+MCR
PLAY-SW
5V-SEBSOR
SENSOR-OUT
+SOL
CRO2
PAC K
F.REC
NC
R.REC
HP.GND
HP.R
HP.L
E
TONE.RIN
TONE.LIN
E
TONE.ROUT
TONR.LOUT
TO : DECK
TO : DECK
#30
#31
W3
PB LEVEL ADJ.
TAPE SPEED ADJ.
TO : DECK
#29
W4
W2
(Rch)
(Lch)
W6
DGND
REM
SUB+5V
VREF
KEY1-1
KEY0
VOL A IN
VOL B IN
STANBY
TIMER
5.0V
FLRES
FLCE
FLCLK
FLDAT
FLGND
VP
FL1
FL2
DGND
TO : MAIN(2)
#16
W15
TO : INPUT(2)
#34
W1
TO : MAIN(1)
TO : MAIN(1)
TO : OPERATION(3)
FROM : OPERATION(2)
#17
W16
#22
W12
#15
W14
W6
W17
W5
FREQUENCY
STEP
(R,T only)
SUBWOOFER
OUT
OUT
AUX/MD
IN
BIAS ADJ.
1
10
FROM : OPERATION(2)
FROM : VCD
FROM : TUNER
10 18
91
18
91
(Lch)
(Rch)
(Lch)
(Rch)
GX-505VCD INPUT P.C.B. (1) (Lead Type Device)
TV MODE
REC LEVEL ADJ.
FROM : OPERATION(3)
TO : VCD(1)
#40
W403
FROM : INPUT(1)
MONITOR
OUT
DIGITAL
OUT
TO : VCD(1)
#39
W401
GX-505VCD INPUT P.C.B. (2)
Lead Type Device
-
GND
DOUT
VMUTE
GND
-
VIDEO
+12V
N.C
N.C
N.C
DSEL1
DSEL0
GND
5V
GX-505VCD INPUT P.C.B. (2)
(Surface Mount Device)
Ref. No. Location
IC1 C2
IC2 D3
IC10 G4
IC26 F4
Semiconductor Location
Ref. No. Location
Q2 C3
Q3 C3
Q4 C4
Q11 C3
Q12 D3
Q13 D3
Q17 D3
Q25 G4
Q26 G4
Q27 E4
Q28 F4
Q33 E4
Q402 A4
Q403 A2
Q404 A2
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