Block Diagram - Yamaha Portatone PSR A1000 Service Manual

A B
PSR-A1000 BLOCK DIAGRAM
1
PITCH BEND
CN16
2
VR3
PB1
3
CN300
/PEDALIN
FOOT PEDAL1
(SUSTAIN PEDAL)
JK303
JK304
FOOT PEDAL2
4
(FOOT VOLUME)
SW300
MIDIOUT
MIDIIN
1M CLK
HOST SELECT
PC/MAC
MIDI/PC2
PC1/MAC
5
JK301
MIDI IN
MIDI
I/F
JK300
MIDI OUT
JK302
Line
TO HOST
13,14 Transceiver 3
6
IC307
VR300
LCD
CN303
CONTRAST
7
8
STAND-BY
DC-IN
Line
Filter
16V
CN105 CN104
JK100
9
10
11
12
13
14
15
16
17
PSR-A1000
A B
C D E
CN10 (PN3)
ENC
Panel SW Matrix
Panel LED Matrix
DATA ENTRY
CN13
LD[0..8]
CN2
CN1 LSEG[0..11]
PN1
CN4 (PN1)
CN2 (PN1) (PN1)
CN100 CN600
CN600
5V 3.3V 3 to 8 Tr.
Tr Array
Buffer Dec. Driver
IC103,104 IC600 IC601
BRI_F
103,104 207 DA0
P-BEND 206
/RAS,/CAS
106,108
AN6
CKIO,CKE
162,105
CN109 DQMUU,DQMUL,DQMLU,DQMLL
SUSTAIN 200
89-92
AN1
CPU
RD/WR
93
FOOTVOL 199
SH3 /SDRAMCS,/PROGCS,/STYLECS
AN0
96,98,99
166
/MUTE
116
172
/DACK
169 114
203
IC100 D[0..31]
AN4
IC001
/IC
+5D A[0..22]
193
RESET
4
5 155,156 101 /8BITCS
4.2V/50msec
102 /16BITCS
CLOCK
15 3
10.00MHz
Dec
X101
5V 3.3V 3.3V 5V
IC308
Buffer Buffer
12
IC911
IC301
1
MASK
CN102
128M
CN501
IC803
CN1
CLOCK 15,16 WAVE
CPU
5.00MHz
IC1
CL1
MKS5F
CN2-4
MK-H , MK-L
Keyboard
CN106
IC101
+B
+12A
12V CN103
3 1
REG.
CN104 CN105
AM 1/2
SW
C D E
F G
, PN2 , PN3 , PN4
IC913
3
Ripple
+
1
Filter
-
Circuit
2
MASK
SDRAM
32Mx2 MASK
64M
64M
19,18
IC205
IC200
68,67
RD/WR /RD
59,28,
17 14
Program
71,16
/SDRAMCS /PROGCS
20 12 Style/Para
IC206
IC302,
IC304,
303
305,
DataBus
1 2,3 306
Buffer
AddrBus
(3.3V 5V)
Dec
5D[0..15]
Buffer
IC308
(3.3V 5V)
5A[0..18]
5 6
CLOCK
33.8688MHz
X800
SMA[0..21] /TGCS
2
150
SMD[0..15] /5RD,/5WE1
152,151
/5TGIC
1
SWX00B
/SOE
IC801
27 41
/SCS0
24
74
16 30 15
DRAM
4M
IC800
+5A
2,25-27 18,28 CN908 CN103 CN100
/5LSIIC
24
VOL
DAC
12,13,
CN102 VR100
IC700
16,17
+5D
1 2 1 3
3.3V
DC-DC +3.3D
REG.
CN105
+12A
IC114 IC111
MUTE
/MUTE
3 5V 1
+5A
REG.
TR702
CN908
IC112
F G
H I
INV
CN2
DC-AC
INV.
CN1
CN104 CN500
/VWR
27 7
/VCE
FLASH
20 8
SRAM
4M
VA[0..14]
256K
IC207 IC204
/RD
/5RD,/5WE
14 28,11
VD[0..7]
/STYLECS
/5DATACS IC501
12 26
Data storage
fc = 6kHz
-12dB/Oct
4,6 2,8
HPF
+12V
IC107,108
Buffer x2
CN100
0dB
4,6 2,8 13
4,6 2,8
EQ LPF
IC102
CN102 fc = 6kHz
IC104,105
VR
-12dB/Oct
CN908 CN103
DM
ATT
H I
J K L
PSR-A1000
Back Light
LCD
FDD
module
320x240
+5D
CN300
CN103
CONTRAST
1
/5IRQF
21
8.00MHz
/5DREQ
20
LCDC FDC
/LP-IRQ
/DACK
37
7
/5WE1
/5WE1
14
5
IC500 IC300
/5RD
13 /5RD
4
/LCDCS
19
/FDCS
6
CLOCK
16.00MHz
X300
+12A
IC111
JK104
TR103,105
2
4,6
AUX OUT
8
+12A
JK102
2
4,6
OUTPUT
8
IC112
JK103
TR104,106
+B
4 IC113
CN109
1
8,10 Tweeter
2
ATT
3
L & R
+B
11,18
CN110
15
17
2,7
Woofer
ATT 14
L & R
5
12
IC110
TR100,101,400,401
MUTE
Circuit
AM 2/2
CN108
CN111
+12A
IC114
2
3
6,7
PHONES
1
JK105
HP
28CA1-8825437
PSR-A1000
J K L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17