Yamaha FB-01 Service Manual page 31

FB-01 OVERALL CIRCUIT DIAGRAM
+ 5V 74HC74
+5V
a roc.
:ro in:
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56
5 V
0C6MHZ)
0
■♦"5 V
BUSRQ
17
♦-5V
tA e
USAK
< TTTt
+ 5V
IC3 ,5V
i
■
juY
13
IC14 +5V
14V
IC17 +5V
u-Y
♦5V
(NOTES)
IC1,4
IC2
IC3
IC5
IC6
IC7
IC8
IC9
IC10
IC11
IC12f13
IC14
IC15
.. IC 16,17
IC18
IC19
IC20
IC21
IC22
NJM4556
LS05
HCU04
TL072CP
YM3012
YM2164
PPD71051
74HC161
PPD70008
PPD23C256EC-1
RPD4464C-15L
74HC74
74HC138
HC32
74HC244
40H004
HC04
74HC174
HC02
PCI PC910
DO
D7
A 0
Fiol
d *ri
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1 11
E
VCC
GND
O
A »
A10
All
A12
o
A13
A14
rc
26
RtSbl
1—1
A15
wR
TO
Ml
14
r 4-5V
1 10Kx8
IRA3-3
I
DO
100Px8
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iRA3-5 i CAS-9 I-
*44
RA4 l5^CA3_-6
-IRA4-4 1 CA3-4
10
13
4 RA1^3 JCA3^2
"^RA4 ^2 _L CA 3jj
\? A3_rl !CA5Q>J
30
I +5V
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RA2-9
A 0
100PX16
JCA3-7 |
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RA2-6j CA 5-5*1-
RA1-8_'_CAj-4J
RA2-7j CA5-3
lift—"RA2-6j CA5-2 ,
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fg-CRA_2-4 _i_(*4-5
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{RA2-2 i_CA4 -7
40 _RAJ_-7 .icEJ^T
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A 4
A9
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All
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22
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I 10M5
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100P*
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RA3-8 i CA2-4
RA4-J7 i CA5
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»-6 < CA2-
I
:2SC2878
:2SA999
:2SA933
:2SC1815
:2SC2878
Dl-7 : 1 SSI 33
ZD1 :3.6LL
ZD2 : 4.2 LL
LF1,4,7,8.9,10
BL02RN2-R62
LSMTB223KB
R1
D1
POWER
SWITCH
I FUSE I
0.5A
POWER
TRANSFORMER CN1
TR1
SW FUNCTION TABLE
SW1 SYSTEM
SW 2 Ins-Sel
SW 3 Ins -Assign
SW4
Ins -Func
SW5 Voice -Func
SW6
Voice -Sei
SW7 -1/ NO
SW8
4-1/YES
AO
.AO 10
A1
11 DO.
12 D1
04
D4
A8 251
A9 24
05
07
O
NC
VCC
♦5V
MWR
RD
IC17
1
00
01
02
OJ
in
i
o
i
D
03
04
05
06
07
z
<
cr
^T
Q
Q_
CM
O
GND
VCC CE2
ii DO
D3,
A13 IC20
ai_
RAM1CS
ic& —
TR4
MEMORY
POWER
SWITCH
TxRDr
RxRDY
LD4
AO
IOWP
RxD
12
10
, TX0
13.
IC
20
CLK
15
14
IC2
19
*5V
8
100x8
V1000PX8
_tCAl_-9_.
■jjRA5-8 I CA1-8J_R60j
7|" 7|
to FRONT PANEL
DO
D7
SWRD
D6
SW 1
SW2
SW3
SW^
SW 5
SW.
SW
SW8
LCDE
AO
DO 10
lined
I*K1
r
11 SWRD 10WR , IORD . SWRD
21
20
!*S 4
6
S SHZ
19
IC
0M
RESET
foso I2rc22i
2 ,
10
IC20 IC22
Ilfs. 10 3.
1 LCDE
Gi
14
50 i m 50
^ 6a
CLR
12
8
IC20
i3r—12
IC22
R5E5
IC
a>
DATA
RB
SAMI
COM
CM
SAM2 O
ICL
rO
Z
>-
TB
VCC
o
AGND CHI
AGNC Q
GND CH2
500KHZ
13
12
.
8.
X>to LCD unit
t\J
f cm
^5V EES I
fe„. Jg.
1/4W 6.8 2)
to
LCD
BACK Lic-H
-5A
5V'
10
4MHZ
HDHf-^Cw2- -
"2 I 2; ^ a. CD Q-
+ 5V
IC2
LI
.12 11
IC 2
ipR26
220
sv
I 8
| 2 7
ir
L5V
WAIT
r
i i
DG AG
"1
IC
m
FB-01C
AC-IN
FB-01F
120 V/-I
-
500mA
250V
220V -
/240V
125mA
250V
PSWl [FUSEl
I FB-01 U
AC-IN
500mA
250V Clu^
mr
-o
pswl [fuse]
D.G
L5V
&
§
DG
DG
D8
S1W02O
TR2
■=-A-G
4? £
(NOTES)
TR1 :7805
TR2 :78M05 D1.2
TR3 :79M05 D8
+5A 4 .
AG 5,
-5A 6.
+5 A
AG
-5 A
A.G
14PIN
+ 5V
Earth Code
IC 2.16
17.19
20.22
+5V
DG
*5A
AG
5 A
IC
i 1
I
4
MIDI THRul
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i
MIDI IN
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1
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MIDI OUT
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R14 R13
2.4K +5A 4/7K 1
Y cn
— r
T 1
0-1 * 2k.
C18 R17 R16
7llC4>?-i
R12
LF13
JK1
Cl 7
0.1
N.P
if)
-5A
IX)'
cr
oT§T L-Ch
5A
TR3
"(Q)
16PIN IC 9
♦5V
15
20fPIN IC18
+-5V
: 10 E1
;S1WB20
LF 1
<B>
JK2
OsJ^rR
8
R-Ch
0.0033
AC-IN