Rolls RFX128P User Manual

2

2

MIDI OUT
PHANTOM PWR

13
4

R38 150

13

MIDI SHARE

4

+5V

DIN 5

D2

1N4001

7805
U8

+5V

3

I

O

G

C5
10U

2

D1

1

1N4001

C6
1000 16V

J3
1
3
2

JAPDC

9 - 15 V AC OR DC

R36

R37 150

10K

Q2
2N3904

J1

5

DIN 5
J2

5

+5V

R14
22K

SW12 SW13

UP DOWN

R2

100K

R1

100K

211

14

3

R9
10K

GND

U2

74HC147

10

SW4

112

U?A
SW DIP-6

8

R18

22K

4

H2D

SW5

R7

10K

R8

10K

+5V

16

22K

A9B7C6D

VCC

11121231341526374859

R15

R16

R17

22K

22K

H2B3H2C

2

2

H1B

H1C4H1D5H1E6H1F7H1G8H1H9H1I

SW2 SW3

012 3456789

100K

310

U?B
SW DIP-6

+5V

R19

22K

H2E

5

SW6

H1A

H2A

R4

100K

49

U?D
SW DIP-6

6

1

1

100K

H2F

R5

58

U?E
SW DIP-6

74HC147

R20
22K

SW7

R6

100K

C3
27PF

67

U?F
SW DIP-6

U3

R21
22K

H2G

7

+5V

16

VCC

11121231341526374859

R22
22K

8

H2H9H2I

SW8 SW9

X1 4MHZ RES

C4
27PF

+5V

R3

R39
10K

A9B7C6D

R23

22K

H1J

SW10

R11

10K

R?

470

1K

1K

1K
1K

U4

16

A1

15

B1

3

C1

2

D1

1

E1

18

F1

17

G1

11

A2

10

B2

8

C2

6

D2

5

E2

12

F2

7

G2
2DSC DSP

R34

4

DP1

9

DP2

14

CAT1

13

CAT2

10K

R35 10K

Title
Size: Document Number:

Date:

Q1

2N3904

Q2
2N3904

ROLLS CORPORATION

5968 S 350 W

MURRAY, UT 84107

RFX128P MIDI BUDDY

Rb

RFX128P B

16 SEPTEMBER 2001

1

Sheet of

Rev:

1

R261K

R28

R29

R30

R31
R32

1K

1

P24

2

P25

3

P26

R13

10K

+5V

4
5

U1 ZILOG

6
7

Z86E04
8
9 10

P31
P32

R10

R12

10K

10K

14

8

GND

+5V

10

R25

R24

22K

22K

H2J

10

11

H2K

10

11

H1K

SW11

P23

18
17

P22

16

P21

15

P20
14
13

P02
12

P01
11

P00

P33

R27

1K

SW1 ASSIGNMENTS
1 - 4 = BINARY MIDI CHANNEL ALL OPEN = 1 CLOSED = 16
5 = OPEN IS MIDI PRG CHNG OR SNG SEL CLOSED
6 = OPEN 1 - 128 CLOSED = 0 - 127