Psr-1000 Block Diagram - Yamaha Portatone PSR 1000 Service Manual

A B

PSR-1000 BLOCK DIAGRAM

1
PITCH BEND
CN16
VR3
PB2
2
3 CN300
/PEDALIN
FOOT PEDAL1
(SWITCH)
JK304
JK303
FOOT PEDAL2
SW300
MIDIOUT
MIDIIN
4
1M CLK
HOST SELECT
PC/MAC
MIDI/PC2
PC1/MAC
JK301
MIDI IN
MIDI
I/F
JK300
5
MIDI OUT
JK302
Line
TO HOST
13,14 Transceiver 3
IC307
VR300
LCD
CN303
CONTRAST
6
7
STAND-BY
DC-IN
Line
Filter
16V
CN105 CN104
JK100
8
PSR-1000
9
A B
C D E
CN10 (PN3)
ENC
Panel SW Matrix Panel LED Matrix
DATA ENTRY
CN13
LD[0..7]
CN2
CN1 LSEG[0..11]
PN1
CN4 (PN1)
CN2 (PN1) (PN1)
CN100 CN600
CN600
5V 3.3V 3 to 8
Tr Array
Buffer Dec.
IC103,104 IC600 IC601
BRI_F
103,104 207 DA0
P-BEND
206 /RAS,/CAS
AN6 106,108
CKIO,CKE
162,105
CN109
SUSTAIN 200 DQMUU,DQMUL,DQMLU,DQMLL
AN1 89-92
CPU
RD/WR
93
FOOTVOL 199
SH3 /SDRAMCS,/PROGCS,/STYLECS
AN0 96,98,99
166
/MUTE
116
172
/DACK
169 114
203
D[0..31]
AN4 IC100
IC001
+5D /IC A[0..22]
RESET 193
101 /8BITCS
5 4
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
64M
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.
CN105
CN104
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
18,19
IC205
IC207
67,68 IC200
/RD
RD/WR
59,28,
17
Program 14
71,16
/SDRAMCS /PROGCS
20 12
IC206 Style/Para
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..19]
5 6
CLOCK
33.8688MHz
X800
SMA[0..21] /TGCS
2
150
SMD[0..15] /5RD,/5WE1
152,151
/5TGIC
1
SWX00B
/SOE
41 IC801
/SCS0
74
16 30 15
DRAM
4M
IC800
+5A
18,28 CN908 CN103 CN100
2,25-27
/5LSIIC
24
VOL
DAC
12,13,
VR100
IC700 CN102
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
Back Light
CN2
DC-AC
INV.
320x240
CN1
CN104 CN500
/VWR
27 7
/VCE
FLASH
20 8
8M SRAM
VA[0..14]
256K
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
IC104,105 fc = 6kHz
VR
-12dB/Oct TR100,101,400,401
CN908 CN103
DM
ATT
H I
J K L
PSR-1000
LCD
FDD
module
+5D
CN300 CN103
CONTRAST
1
/5IRQF
21
8.00MHz
/5DREQ
20
LCDC FDC
/LP-IRQ
/DACK
37
7
/5WE
/5WE
14
5
IC500 IC300
/5RD
15 /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
TR104,106
+B
4 IC113
CN109
1
Tweeter
8,10
ATT
3
L & R
+B
11,18
CN110
15,17
2,7
Woofer
ATT
12,14
L & R
5
IC110
MUTE
Circuit
AM 2/2
CN111
+12A
IC114
2
3
6,7
PHONES
1
JK105
CN108
HP
28CA1-8820767
PSR-1000
J K L
1
2
2
4
5
6
7
8
9