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楽器 Yamaha PortaTone PSR-A300のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha PortaTone PSR-A300 40 ページ。
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PB
61L
(C1~B3)
PITCH BEND
CN4
(12P)
SW1-36
CN5
(7P)
CN1
(3P)
CN833
CN832
DMLCD
(7P)
(5P)
13-15
7,9-15
DECODER
DECODER
IC831
74LV138A
74LV138A
(16P)
16
1-3,5
16
1-3,6
IC832
(16P)
+3.3D
124-127
15,46,89,119
+2.5V
+5D
+3.3D
24,47,66,90,120
5
IC302
RESET
4
16
(5P)
SWL01
+3.6V 50ms
YMW767-VT
X301
IC301
12
16.9344MHz
XI
(128P)
Crystal SMD-49
13
XO
F Tolerance±100PPM
+3.3D
IC901 (6P)
BCLK
CN901
WCLK
(3P)
1
42,43
4,6
8bit
SDI
5
41
3
ADC
67,68,123
ADCS7478AIMF
70-76,78-86
91-103,105-108,110-114
MD00-15
+3.3D
/UWR
MA01-22
/CAS
/LWR
MD00-15
MD00-15
14
MA01-09
MA01-18
OR
74LV32A
4M
4M
IC204
DRAM
FLASH
(14P)
ROM
/LUAS
IC203
IC202
/LCAS
(44P)
(48P)
30,31
1,5,22
12
37,47
+3.3D
TOUCH RESPONSE
61H
(C4~C6)
PC0-5,PD0-5
CN3
(12P)
SW37-61
CN1
CN2
(12P)
(5P)
CN831
CN631
(12P)
(9P)
RXD0
+5D
IC701 (80P)
TXD0
SCLK
LCD
PF0
33
DRIVER
36,38-46
PA0-PA7
RS
18-23,
35,36,
ENB
25-30
39,117
PB0-PB7
57-64
PA0-PA7
48-55
PE1,PG1
116,122
+5A1
+5A2
IC431 (16P)
IC432 (8P)
SDO
SYSCK
8
14
BCLK
24bit
2,3
WCLK
BUFFER/
40,42-44
11,12
1-4
DAC
9,10
6,5
fc=27KHz
AK4385ET
5
34
IRQ0(Power SS)
PF0(Power Select)
117
IC132 (3P)
MD00-15
REGULATOR
MA01-22
+2.5V
+2.5V
MASK
REGULATOR
64M
+3.3D
+3.3V
ROM
IC131 (3P)
PROG/WAVE
IC201
+5D
(48P)
+5A1
12
37,47
+5A2
MIDI
SUSTAIN
IN
OUT
3
1
3
1
4
4
5
5
2
2
JK602
JK601
JK603
PNAM
2/3
SW MATRIX
SW501-525
+3.3D
MIDI I / F
LED
IC601
DRIVER
TR601,602
TR501,502
CN601
PE1,PG1
(9P)
CN501
(16P)
CN531
(16P)
LCD
DISPLAY
BACK LIGHT
LED: 2PCS(ORANGE)
Lch
1
Rch
7
VR401
LPF
CN402
MASTER
(5P)
VOLUME
PNAM
3/3
CN131
(11P)
+5V
PN1
LED
LED
LED
LED
DRIVER
DRIVER
LD301~304
LD201~212
TR201~203
TR301
SW MATRIX
SW MATRIX
SW301~305
SW201~212
CN201
CN301
PA0-PA5
PA6,PA7
(11P)
PB5,PB6
(9P)
CN504
CN505
(11P)
(9P)
CN502
(10P)
CN503
PNAM
1/3
(10P)
CN102
SW MATRIX
(2P)
SW526-537
POWER AMP
L
11
BA5417
5
R
12
3
IC401
CN401
(15P)
(5P)
4
+B
IC101
(3P)
REGULATOR
+5V
+5V
STANDBY/ON
IRQ0(Power SS)
SW101
PF0(Power Select)
POWER SUPPLY
SELECTOR
TR101,102
CN103
(11P)
28CA1-2000001123
PN2
PB5-PB7
CN404
(2P)
SPEAKER R
4Ω 12cm
SPEAKER L
4Ω 12cm
CN403
(2P)
L
PHONES /
R
OUTPUT
JK401
(8P)
+
BATTERY
–
1.5V x 6
CN101
(3P)
AA-size,SUM-3,R6 batteries
DC IN 12V
AC adaptor
PA-3B/PA-3C
JK101