x0xb0xに興味津々

アナログ16STEP　SEQUENCERにx0xb0xの音源部分に繋いで鳴らそうと企んでいる。

タカチのTS-2型に収まるように制作したい。（200*150*（30 > 70））

x0xb0xはオリジナルに忠実であることを目指しているため、入手困難な部品も多く積んでいる。
データシートとニラメッコして、代替えになりそうな部品を別基板にハンダした上でワイアをひっぱってくれば、元の基板配置でも対応は可能である。

元の基板サイズは240mmなので、50mm減らして190mmに収めたい。
基板に直付けのVR（2~8）とテンポ、s3,s4 の16 position rotary switch(シーケンサ操作選択スイッチなので省く)とか基板に直挿しなので、それを無くせば
2～3CMは小さくなりそう。
さらに、resonanceなどの必要なボタンも、パネル実装なので、それぞれ、ピンジャックに変えれば、スペースを減らすことができそう。

電源はトランスありのアダプタに変えれば、基板容量は減らすことができる。
また、x0xb0xの電源回路を使って済ます方がベストだろう（9VAC 300-500mA wall wartなトランス入りアダプタを使用している）
POTの数がx16なので16STEPが上段、x0xb0xが下段でまとめられれば　TS-2でも収められそう
問題は、元の部品リストにない部品を変換する基板がどれくらいのサイズになるかだ。





x0xb0xはCV[note]とGATEの他に、音源に対してACCENTとSLIDEの２つの演奏情報も渡せる。
通常、[note] と同一回路上に[ACC]=>[SLIDE]=>は、つながっていてるが無効にされていて、
有効にすると、そのnoteがGATEされるタイミングで、音声回路に渡されるようにすれば使えそう。

具体的には各STEPボタンから、一つの　ACC、SLIDEにすべて予め繋げて、
STEPがOFFの場合は、もちろん、ONの場合もACC,SLIDE共にONにしなければ信号は行かないようにする。

できるだけ小さく、オルタネイトスイッチ（押すごとにON・OFFが切り替わる）で、
しかもLED付きで、安いものは無いのだろうか。

http://akizukidenshi.com/catalog/g/gP-04074/　150円　モーメンタリ
https://www.marutsu.co.jp/pc/i/3029/　700円！



さらに欲を出して、CPUも組み込み動かそうとするなら少し、ちょっと敷居が高くなる。

まず、AVRマイコン960円を購入　
・AVRマイコン【ATMEGA162-16PU】https://www.marutsu.co.jp/pc/i/40450/
・書き込みツール　HiLetgo STC90C58 51マイクロ コントローラ プログラマ USB バーナ STC SST ISP EEPROM SP200SE [並行輸入品]　740円

 以下、部品リスト

電源部

9VAC transformer wall wart300-500mA2.1mm plug
Make sure this is 9VAC, a common problem is using a 9VDC adaptor.

Heat sink (TO-220 size) IC20' Slips on the 5V regulator to keep it from overheating

2.1mm power jack POWER Plug the 9VAC adaptor into here

1N4001 (generic) D40-D43 These form a full wave rectifier that smooths the AC voltage into DC

1N4148 (generic) D44-D47

100 ohm 5% resistor (brown black brown gold) R1

1K 5% resistor (brown black red gold) R2

1.8K 5% resistor (brown grey red gold) R179

2.2K 5% resistor (red red red gold) R178

6.8K 5% resistor (blue grey red gold) R3 Do not confuse this with the 68K resistor

2.4K 1% resistor (red yellow black brown brown) R5 Do not confuse this with the 24K resistor

5.6K 1% resistor (green blue black brown brown) R4 Do not confuse this with a different 1% resistor

2K (202) trim potentiometer TM6 Be sure it says 202 on the edge, or use the multimeter across the two far points to verify its 2K ohm.

.1uF (104) ceramic capacitor C1, C2, C4, C6 Small bypass capacitors

10uF electrolytic capacitor C60, C61 Capacitors are directional, and will be destroyed if soldered in backwards.

100uF 25V electrolytic capacitor C7, C8 Capacitors are directional, and will be destroyed if soldered in backwards.

2200uF electolytic capacitor C3, C5 Capacitors are directional, and will be destroyed if soldered in backwards.

AN6562 8-DIP dual Op-Amp IC23 Do not confuse with the EEPROM chip which may look similar. Look for 6562 on top.

(78x05) 5V voltage regulator, 1.0A IC20 This part is directional, make sure to put it in the right way.

(78L06) 6V voltage regulator, 0.1A IC21 Make sure it says 78L06 on it

(LM336Z-5.0) 5V voltage reference IC22 Make sure it says LM336 on it.

VCO


Toggle switch 1 SW1

1N4148 3 D25, D30, D31

2.2K 5% resistorRed Red Red Gold2 R107, R104

10K 5% resistor Brown Black Orange Gold 4 R34, R36, R105, R101

22K 5% resistor Red Red Orange Gold 2 R45, R60

100K 5% resistor Brown Black Yellow Gold 6 R35, R93, R92, R59, R102, R118

220K 5% resistor Red Red Yellow Gold 1 R103

1MEG 5% resistor Brown Black Green Gold 1 R91

24.0K 1% resistor Red Yellow Black Red Brown 1 R106

200K 1% resistor 17 R74-R90

5K (502) trim potentiometer 1 TM5

50K (503) trim potentiometer 1 TM4

50K B (linear) potentiometer 1 VR2

1K PTC Thermistor 2 R100A, R100B

.001uF (2A102K) capacitor 1 C34

.01uF (2A103K) capacitor 2 C33, C10

.22uF (2A224K) polyester capacitor 1 C35

1uF electrolytic capacitor 1 C11

10uF electrolytic capacitor 2 C31, C32

4066 analog switch 1 IC12

74AC174 1 IC9

2SA733P, TO-92 PNP transistor 2 Q8, Q27

2SC536F, TO-92 NPN transistor 4 Q29, Q30 , Q25 , Q24

2SK30 JFET, 2SK30AO sub-type if there is one 1 Q28

AN6562 8-DIP dual Op-Amp 1 IC11

2SC1583 5-SIP matched pair with common emitter 1 Q26


VCF

1N4148 1 D24

100 ohm 5% resistor 1 R95

2.2K 5% resistor 7 R67, R68, R69, R70, R71, R98, R108

10K 5% resistor 11 R47, R61, R64, R65, R94, R96, R97, R109, R112, R115, R116

22K 5% resistor 2 R110, R111

47K 5% resistor 1 R46

100K 5% resistor 6 R66, R72, R73, R99, R113, R114

220K 5% resistor 2 R62, R63

500K (504) trim potentiometer 1 TM3

50K D (log) potentiometer 2 VR3, VR5

50K B (linear) dual potentiometer 1 VR4 　これ持ってない！http://akizukidenshi.com/catalog/g/gP-03605/　180円　/　DUAL　Aカーブなら　http://akizukidenshi.com/catalog/g/gP-07209/　９０円

.018uF (2A183K) polyester capacitor 1 C18

.033uF (2A333K) polyester capacitor 3 C19, C24, C26

.1uF (2A104K) capacitor 2 C25, C27

10uF electrolytic capacitor 2 C16, C30

47uF electrolytic capacitor 1 C28

1uF electrolytic capacitor 7 C13, C14, C15, C17, C22, C23, C29

2SA733P, TO-92 PNP transistor 2 Q9, Q10

2SC536F, TO-92 NPN transistor 10 Q11, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q23

2SC2291 5-SIP matched pair with common base 1 Q22

2SC1583 5-SIP matched pair with common emitter 2 Q12, Q21

ENVELOPE

1N4148 5 D26, D28, D29, D34, D37

22 ohm 5% resistor 1 R150

100 ohm 5% resistor 1 R152

1K 5% resistor 1 R137

10K 5% resistor 6 R142, R143, R144, R145, R148, R149

22K 5% resistor 3 R117, R146, R151

68K 5% resistor 1 R138

100K 5% resistor 3 R139, R140, R141

1Meg A (log) dual potentiometer 1 VR6　これ持ってない！

.047uF (2A473K) capacitor 1 C54

1uF tantalum capacitor 1 C62

10uF electrolytic capacitor 1 C72

47uF electrolytic capacitor 1 C55

2SA733P, TO-92 PNP transistor 2 Q36, Q38

2SC536F, TO-92 NPN transistor 4 Q35, Q37, Q40, Q41

2SK30 JFET, must be 2SK30AY 1 Q39


VCA

1N4148 3 D27, D35, D36

100 ohm 5% resistor 2 R130, R132

2.2K 5% resistor 5 R125, R126, R124, R133, R162

22K 5% resistor 3 R120, R129, R134

47K 5% resistor 2 R119, R127

100K 5% resistor 1 R122

220K 5% resistor 3 R121, R128, R131

1.5MEG 5% resistor 1 R123

50K B (linear) potentiometer 1 VR7

.01uF (2A103K) capacitor 2 C21, C20

.033uF (2A333K) polyester capacitor 1 C36

.1uF (2A104K) capacitor 1 C41

1uF electrolytic capacitor 1 C38

1uF (105) tantalum capacitor 1 C42

10uF electrolytic capacitor 2 C37, C40

2SA733P, TO-92 PNP transistor 3 Q1*, Q2*, Q31

2SC536F, TO-92 NPN transistor 3 Q3*, Q4*, Q32

BA6110 9-SIP 1 IC15B*

BA662A 9-SIP 1 IC15A*


Notes
The VCA can either use the BA662 or BA6110 chips. The kit comes with BA6110, which means that Q1-4 are also required. If you decide to go with a BA662, do not solder in Q1-4! Also, each chip has a different pinout so use IC15B for BA6110 and IC15A for BA662.

Dont put in your BA6110 upside down: the notch in the chip goes at the end of the socket that has a tapered end in the silkscreened picture (pointing north as seen above).


HEADPHONE

1N4148 2 D32, D33

100 ohm 5% resistor 1 R136

1K 5% resistor 1 R161

4.7K 5% resistor 1 R135

10K 5% resistor 3 R157, R158, R160

33K 5% resistor 1 R159

47K 5% resistor 1 R155

100K 5% resistor 4 R153, R154, R156, R165

50K D (log) potentiometer 1 VR8

.0068uF (2A682K) capacitor 1 C47

.01uF (2A103K) capacitor 1 C46

.068uF (2A683K) capacitor 1 C45

1uF electrolytic capacitor 3 C58, C59, C56

2.2uF electolytic capacitor 1 C51

10uF electrolytic capacitor 2 C50, C52

47uF electrolytic capacitor 2 C44, C53

100uF 10V electrolytic capacitor 2 C48, C49

1000uF electrolytic capacitor 1 C43

2SA733P, TO-92 PNP transistor 1 Q33

2SC536F, TO-92 NPN transistor 1 Q34

LA4140 9-SIP 1 IC14


IO（ヘッドフォン出力、ACジャック、CV,GATEは流用する）


1/4" stereo jack 3 MIXOUT, MIXIN, HEADPHONE

1/8" jack 2 CV, GATE

USB type-B jack 1 USB

MIDI/DINSYNC jack 4 DIN1-4

1N4148 1 D48

10 ohm 5% resistor 2 R186, R164

22 ohm 5% resistor 1 R20

27 ohm 5% resistor 2 R6, R7

100 ohm 5% resistor 1 R16 (see MIDI in note above)

220 ohm 5% resistor 5 R13-R15, R18, R19

470 ohm 5% resistor 1 R12

1K 5% resistor 1 R17

1.5K 5% resistor 1 R8

2.2K 5% resistor 4 R21-R24

4.7K 5% resistor 1 R9

10K 5% resistor 2 R10, R11

100K 5% resistor 4 R25-R28

.033uF (2A333K) polyester capacitor 1 C201

.1uF (104) ceramic 2 C202, C204

10uF electrolytic capacitor 2 C203, C205

2SC536F, TO-92 NPN transistor 1 Q50

4N37 optoisolator 1 IC24

FT232 USB chip 1 IC25

6MHz ceramic resonator 1 XTAL2


SEQUNCER

40-pin DIP socket 1 IC3*

8-pin DIP socket 1 IC2*

Rotary encoder 1 S2

16 position rotary switch 2 S3, S4

Solid gauge wire (jumpers) 2 J1, J2

Solid gauge wire (straps) 2 S3*, S4*

Tact switch 23 S5-S27

Red 5mm LED 40 LED1-LED40

0.22" LED standoff 40 LED1*-LED40*

1N4148 10 D1-D10

10K 5% resistor 68 R201-R234, R237-R270.

220K 5% resistor 2 R235, R236

1MEG 5% resistor 1 R200

.001uF (2A102K) capacitor 2 C100, C101

.1uF (104) ceramic 10 C103, C104, C106-C113

1uF electrolytic capacitor 1 C105

100uF 10V electrolytic capacitor 1 C102

74AC126 1 IC1

74AC165 3 IC16-IC18

74AC595 5 IC4-IC8

2SC536F, TO-92 NPN transistor 1 Q5

ATmega162 microcontroller 1 IC3

25C33 or AT25320 32K EEPROM 1 IC2

16MHz ceramic resonator 1 XTAL1