Yamaha DP-U50 Service-Handbuch - Seite 34

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Yamaha DP-U50 Service-Handbuch
A
B
C
DP-U50
I
SCHEMATIC DIAGRAM (MAIN & OPERATION)
1
Q Q
7
3
2
3
4.8
TO DSP
P-E38/J36
N-3
4
TO OPE (2)
SAME PAGE
I-6
5
TO DSP
P-E38/J36
N-5
T
E
L
1
3
6
7
TO DSP
P-E38/J36
N-1
8
9
TO OPE (2)
SAME PAGE
I-7
w w w
10
E-39/J-37
D
E
F
CIRCUIT CHANGES BY MARKET.
1
5
6
3
0
0.7
16.6
0
14.5
16.8
9.0
0
14.5
15.1
0
4.9
16.8
4.3
0
0
15.1
4.3
0.5
0
0
0
5.6
5.6
-15.1
4.9
4.8
0.5
-14.3
-14.3
-15.1
-16.9
4.9
4.9
-14.5
-16.6
-16.9
A MUTE
0.1
14.5
0.1
0.1
0.1
-14.3
14.5
0
0
0
-0.3
0
0
0
-14.3
0.1
0.1
0.1
0
0.1
0.4
0
-14.5
-14.5
0
14.5
0
0.1
9
4
2
2
9
6
5
1
3
0.1
0
0
-14.5
-5.7
-5.7
-6.3
x
a
o
FL DRIVER
.
i
-17.9
-17.5
-17.5
G
http://www.xiaoyu163.com
H
1
5
0
5.6
5.6
5.6
10.5
5.6
0
9.5
5.6
0
9.5
4.9
4.9
0.7
0.7
0
0
9.5
4.6
4.3
0
-20.6
POWER SUPPLY
-21.2
9.5
-22.2
-21.2
4.6
0
4.3
5.6
-16.8
0
16.6
0
0
0
-11.1
-11.1
0
-22.2
5.1
0
10.5
5.1
S MUTE
0
-14.2
-14.2
0
Q
Q
3
7
-1.0
~
-16.8
-20.4
-20.4
~
~
-20.4
-16.8
u
1
6
3
-16.8
y
-2.1
-6.7
-6.1
-6.2
-6.2
-3.6
http://www.xiaoyu163.com
I
J
K
IC10, 11 : PQ05RD11
+5.0V Regulator
1
2
VIN
VO
2
4
8
9
I C
4
CV
3
GND
TO OPE (1)
SAME PAGE
I-9
-16.5
-15.8
0
-15.8
-15.8
-16.5
-15.8
FROM POWER TRANS
AC4.3
AC9.0
FROM POWER TRANS
AC18.3
AC27.5
IC301 : LC75710NE
FL Display Driver
FROM POWER CORD
G6
49
32
G5
50
31
51
30
G4
G3
52
29
G2
53
28
G1
54
27
VFL
55
26
TEST
56
25
VSS
57
24
OSCO
58
23
OSCI
59
22
VDD
60
21
RES
61
20
CE
62
19
CL
63
18
DI
64
17
FROM POWER TRANS
6
3
1
5
1
5
0
8
TO MAIN (1)
SAME PAGE
C-4
TO OPE (1)
SAME PAGE
C-9
TO MAIN
SAME PAGE
J-2
m
c
o
.
L
M
N
IC6, 8 : µPC4570HA
IC7 : BA15218N
Dual OP-Amp
Dual OP-Amp
+
+
–
–
1
2
2
9
8
9
9
–
+
+
–
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
V
CC
V
O1
–Vm
1
+Vm
1
V
EE
+Vm
2
–Vm
2
V
O2
V
CC
CG
DI
ROM
CL
SHIFT
DC RAM
AM1
REGISTER
AM32
CE
CG
AM2
AM31
ROM
AM30
AM29
ADDRESS
ADDRESS
AD
AM28
VDD
AM35
REGISTER
COUNTER
RAM
AM27
AA1
VSS
AM26
BLINKCYCLE
BLINK
AA2
AM25
REGISTER
GENERATOR
VFL
AA3
AM24
AA4/G16
AM23
RES
DISPLAY
DISPLAY
REGISTER
CONTROL
AA5/G15
AM22
TEST
AA6/G14
AM21
DUTYCYCLE
DUTY
AA7/G13
AM20
REGISTER
GENERATOR
AA8/G12
AM19
G11
AM18
GRID
GRID
G10
REGISTER
CONTROL
AM17
INSTRUCTION
CONTROL
DECODER
OSC I
G2
TIMING
OSC
DIVIDER
GENERATOR
DECODER
G1
OSC O
9
2
4
9
8
2
9
9
1SS133
UDZ3.6B
S1VB20
MTZJ16.0A
Anode
MTZJ22.0C
Cathode
–
+
S4VB20
2SA1708 (S, T)
2SC2412K (Q, R, S)
2SD1858TV2 (Q, R)
C
E
B
B
C
E
2SC2878 (A, B)
2SC1740S (R, S)
2SB1565 (E, F)
DTA114ES
2SD2396 (J, K)
DTA124ES
DTC114ES
DTC124ES
B
C
E
E
C
B
B
C
E
AN78N09
NJM78M05FA
PQ05RD11
1: VIN
2: VO
1: OUTPUT
1:INPUT
3: GND
2: COMMON
2:COMMON
1 2
3 2
1
4: VC
3:OUTPUT
3: INPUT
3
1
4
µPC4570HA
BA15218N
LC75710NE
48
33
49
32
8
9
64
17
1
1
1
16
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
O