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A
B
GX-900
PRINTED CIRCUIT BOARD (Foil side)
1
P.C.B. TUNER
(Lead Type Device)
2
3
4
AM
GND
FM
5
70
6
C
P.C.B. TUNER
(Surface Mount Device)
TUL
E
TUR
12V
TUMUTE
TUCE
TUDATA
TUCLK
TUDO
STAD
STEIN
CIRCUIT CHANGES BY MARKET.
U, C, R, T, L, A
B, G
J
X3
X
X
O
X4
X
O
X
IC3
X
X
O
IC4
X
O
X
Q4
X
X
O
D6 ~ 8, 10
X
X
O
L7 ~ 9
X
O
X
C68, 71 ~ 74
X
O
X
C46, 52 ~ 54
X
X
O
C29
O
O
X
C42 ~ 51, 55, 56
X
X
O
C67, 69, 70
X
O
X
R33 ~ 38
X
X
O
R54
X
O
X
R25
O
O
X
R39
X
X
O
J21
X
O
X
J1, 40, 44
X
X
O
0V
O : USED
X : NOT USED
D
E
P. C. B. MD
(Lead Type Device)
u
AGND
ROUT
AGND
LOUT
AGND
RIN
y
AVCC
LIN
PSWCK
/LOADSW
D6.5/5V
D6.5/5V
GNDd
GNDd
GNDd
GNDd
MDDATA
DSTB
SEARCH
KDATA
MD—ST
DSCK
PDOWN
/MD—RES
DIGin
BACKUP
DIGout
GNDd
Point y (Pin20 of IC2)
Point u (Pin12 of IC4)
H : 0.1 µsec/div
H : 0.1 µsec/div
V : 2V/div
V : 2V/div
DC range
1 : 1 probe
DC range
1 : 1 probe
0V
71
F
G
FROM : MAIN (1)
P. C. B. MD
Point i (Pin13 of IC2)
V : 2V/div
DC range
0V
H
(Surface Mount Device)
8
H : 50 nsec/div
1 : 1 probe
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