A
B
C
D
E
F
G
H
1
2
3
4
5
6
GX-900
■
BLOCK DIAGRAM
64
65
VOLUME LEVEL
CONTROL
GEQ
IC7
INPUT
SWITCH
IC3
MUTE
Q23.24
SPEANA
IC26
MUTE
Q21
PROTECTION
U801
FL DISPLAY
V801
KEY CONT
SW801-807,812-818
820-824,826-836
9.0V
-12V
FL
DRIVER
IC815
u5.6V
IC8 49,17,16
CONT
TUCE,TUDO,TUCLK
7
1
5
3
20
SMUTE
5.0V
SW
OUT
IC8 59
HP AMP
IC10
HP,IC8 85
IC8 11
THER
IC11
RY201
18
22
17
14
15
AUX
3
8
BASS
VR804
21
28
22
18
Q6,15
Q5,7
12
1
14
5
15
2
11
4
AUX
TUNER
TAPE
CD
13
3
IC8 67
3
5
4
9
1
7
RECA
Q29,30
9,10
IC8 66
12,13
49
64
24 25 26
5,6
14
36
15
34
13
RECB
4
6
2
8
23
24
19
TREBLE
VR802
AMPMUTE
IC8 24
IC8 90
IPRT
20
|
22
25
26
18,19,30,34
TUNER CONTROL
ROTARY
ENCODE
SW825
VOL.
REMOCON
Q803
32
41 - 44
ST
ANDBY
D802
71
|
80
87
|
89
92
|
97
DECK CONTROL
Q26
Q218
4 - 8
MDB
CDB
48
49
12
13
12V
+12M
TIMER
D803
-LB
81,82
-12V
Q207
D213
u5.6V
IC8 58
+LB
SPON
+HB
D211
D212
-27V
-HB
Q206
IC8 57
PRON
RY203
T202
F217
F201
Q804
32.768MHz
XL401
8MHz
XL402
38
39
37
36
SYSTEM CPU
IC8
+
-
-
+
TE201
SPEAKER
K9V
Q204
Q25
HP JACK
JK803
5.0V
15
INIA,IN1B
IC8 62,63
POWER AMP
IC201
TUNER
TAPE PB
CD
TAPE REC
IN
REC
REC
SWITCH
IC5
YMERSION
TONE.CONT.
IC814
11
12
MUTE
Q801
802
MUTE
Q201
202
1
3
+12M
12V
-27V
5.0V
K9V
50
51
VPR
T
+12M
12V
-12V
-27V
9.0V
K9V
U5.6V
5.0V
13
|
16
1
|
12
14
|
64
32
VP
-27V
1
2
58
59
FAC1
FAC2
IC8 15
VPRT
SUBB
D215
T203
IC8 29
ACIN
±
HB
±
LB
Q33
9.0V
RY201
RY203
61
29
57
58
SPON
PRON
ACIN
85
HPIN
62
66
63
67
INIA
INIB
RECA
RECB
90
IPRT
24
59
AMPMUTE
SMUTE
11
THER
16
17
49
INPUT
SWITCH
IC4
MDM-98A
IC401
SW
IC2
M30624FG
Q4
ROTARY
ENCODE
SW801
83,84
MD
JOG
10 - 13
8
CD CONTROL
DECK CONTROL
9,10
IN2A,IN2B
IC8 64,65
Q31,32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
25
27
28
30
Q401
+3.3V
MUTE
Q1,2
14
5
12
1
5
3
7
1
1
7
3
5
IC5
LPF
5
6 9
8
1
2
13
12
3
4
11
10
Vd+6.5/5V
SYSCTL
SYSCK
SYSI
SYSO
/RES
/PDN
XL1
DSEL0
IC8 55
DSEL1
IC8 56
5
6
7
2
14
16
BACKUP
u5.6V
Q6
IC1
Q7
28
42
39
38
37
19
15
35
36
13
12
31
32
33
34
18
50
MDB
IC3
IC4
IC4
CB403
DIGITAL IN
CD
DIGITAL OUT
64
65
IN2A
IN2B
TUCLK
TUDO
TUCE
Vd+6.5/5V
DIGITAL IN
R
L
IC21
13
3
R
L
MD
Summary of Contents for GX-900
Page 103: ...GX 900 GX 900 ...