Yamaha GX-500 Service Manual Page 71

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ABCDEFGH
1
2
3
4
5
6
GX-900
80 81
PRINTED CIRCUIT BOARD (Foil side)
-27V
-12V
-HB
-LB
TRAC
E
CDAC2
CDAC1
FAC2
FAC1
CDGND
CDGND
CDB
MDGND
MDGND
MDB
-LB
KGND
+12M
LB
-27V
-12V
12V
FAC2
FAC1
AMPMUT
UGND
THER
VPRT
SRON
IPRT
PREOR
DGND
PREOL
AGND
PREOC
Q218 Q204
W205
#13
TO: MAIN(5)
FROM: MAIN(3)
TO: CD
FROM: INPUT(1)
W201
#11
TO: MD
W202
#12
122
L R
FRONT
SPEAKERS
P.C.B. MAIN(1)
P.C.B. OPERATION(3) (Lead Type Device)
DGND
NC
KEY4
NC
VREF
HPIN
HPR
HPGND
HPL
MuTESW
NC
NC
NC
YMA
T-RIN
E
T-ROUT
E
T-LOUT
E
-12V
+12V
D+5V
MDJA
MDJB
DGND
1
19
12
1324
PHONES
BASSTREBLE
FROM: INPUT(1)
FROM: INPUT(1)
TO: OPERATION(4)
STANDBY/ON
MUSIC
INPUT
B. BOOST
YMERSION
TIME REPEAT RANDOM
DISPLAY MEMORY AUTO/
MANUAL
TAPE REC/
PAUSE
DOLBY
NR
MODE
WQ
W802
W810
BL
KEY1
KEY1-1
KEY2
KEY3
KEY4
DGND
MD REC/
PAUSE
SET
CHARACTER
CHARACTER
+
J923
P.C.B. OPERATION(3) (Surface Mount Device)
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