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Gemini BPM-500, Service Manual, Page: 12 / 12

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Gemini BPM-500 Service Manual Download Page 12

IC4A

4556

IC4B

4556

R37

10

R38

10

C29

470/16

C30

470/16

R40

16K

R39

16K

C33
22

C32
22

R45

180

R41

180

C36

47/16

C37

47/16

R47
100K

R44
100K

VR8A
50KAX2

VR8B
50KAX2

C35

1/16

C31

1/16

R48

47K

R50

47K

R53

47K

R54

47K

VR7A
20KBx2

VR7B
20KBx2

1

2

3

X11

 

R33
47

R32
47

C28

472

C26

472

GRD PHONE

R52
4K7

D13

LED

R51
10K

R49
10K

+12V

-12V

-12V

SW7A

SW7B

SW7C

SW7D

L

VR4B

20KMNX2

R 

VR4A

20MNX2

VR3A
50KAX2

VR3B
10KAX2

1

2

3

X3

1

2

3

X4

BALANCE

BOOTH

VR6A
10KAX2

VR6B
50KAX2

1

2

3

X5

MASTER

R27
8K2

D6
LED

+12V

-12V

SW2

MONO/STEREO

1

2

3

4

5

X12

R42
10K

R43
10K

IC3A

2068LD

R47

470K

R48

36K

R44
47K

R46
470

R49
820

C39
151

+12V

-12V

C42
222

C41
822

C43
22/16

IC3B

2068LD

R40
470K

R39
36K

R41
47K

R38
470

R43
820

C37
151

C35
222

C33
822

C38
22/16

C44

10/16

C36

10/16

R42
10K

R50
10K

R37

56

R45
56

C34
47/16

C40

47/16

PH3/L3

J4A

1

2

3

4

5

6

X4

R68
2K2

C57

10/16

C56
101

L5

J6A

R66
47K

R69

12K

R64
2K2

C54

10/16

C55
101

R65
47K

R67

12K

IC4A
2068LD

R60
1K 1%

R59
1K 1%

R63
5K1 1%

C53
101

J5

R57
56

R62

56

C51
47/16

C52
47/16

+12V

-12V

R61
5K1 1%

C50
101

C49

47/16

R55
5K6

R56

1K

R58

1K

MIC 3

R53

2K2

C46
10/16

C48
101

L4

J4B

R54

7K5

R51

2K2

C45
10/16

C47
101

R52
7K5

1

2

3

X5

IC5A

2068LD

IC5B
2068LD

C77

4.7/16

C74

4.7/16

R92
7K5

R85

20

R96
20

R99
7K5

C71
22/16

C76
22/16

+12V

-12V

J8B

RECORD

C79

47/16

C70

47/16

R101
910

R89

910

R95

300

R94

150

R97
47K

C75

22/16

Q2

2SC2878

R88

300

R87

150

R90
47K

C72

22/16

Q1

2SC2878

BOOTH

IC6A
2068LD

IC6B
2068LD

C88

4.7/16

C84

4.7/16

R108
7K5

R102
20

R115
20

R116

7K5

C81

22/16

C86

22/16

+12V

-12V

J8C

C89

47/16

C82

47/16

R120

910

R109

910

R111

300

R110
150

R113
47K

C85

22/16

Q4

2SC2878

R105
300

R104

150

R106
47K

C80

22/16

Q3

2SC2878

MASTER

R114
4K7

R107
4K7

R98
4K7

R91
4K7

Q6

2SA1317

R121
680K

C93
220/16

D1

1N4148

C91
4.7/16

D2
1N4148

+12V

R86

10K

R82

10K

C69
10/16

C68
10/16

J8A

1

2

3

X11

1

2

3

X12

R74

2K2

C60
10/16

C61
101

L6

J6B

R72
47K

R75

12K

R70

2K2

C58

10/16

C59
101

R71
47K

R73

12K

1

2

3

X6

1

2

3

X7

J1

1

2

3

X1

R83

47K

R84
47K

J7B

J7A

R77

1K

R76

1K

C64
101

C63
101

C65

10/16

C62

10/16

1

2

3

X8

IC8A
4558LD

IC8B
4558LD

R125
10K

R130

20

R118

20

R129

10K

C92
22/16

C95
22/16

+12V

-12V

R119

10K

R132

300

R123

150

R122
47K

C90

22/16

Q5
2SC2878

R124

300

R131

150

R127
47K

C96
22/16

Q7
2SC2878

R103

10K

J9

J10

R128
4K7

R126

4K7

Balanced
Outs

R81

200K

R79

200K

LOOP

1

2

3

X13

1

2

3

X9

OUT

IN

R112
100K

R117
100K

R93
100K

R100
100K

C78

47

C73

47

C87 47

C83

47

SW1B

SW1A

1

2

X10

MIC2

C67

10/16

C66

10/16

R80

1K

R78

1K

1

2

3

X4

1

2

X19

1

2

3

4

5

6

7

8

9

X18

+12V

-12V

L5

MIC 3

L6

1

2

3

X17

+5V

+12V

1

3

2

T
R
S

J11

MIC1

1

2

3

X37

J1

1

2

3

X1

PHONES

I/O PCB

R133

1K

1

2

3

X7

-12V

+12V

IC1A

2068LD

R10

100K

R11

8K2

R8

47K

R13

470

R17
2K2

R12
180

C7
151

+12V

-12V

C10
822

C9
273

C11
47/16

IC1B

2068LD

R4

100K

R5
8K2

R3
47K

R2
470

R7
180

C5
151

C3
822

C2
273

C6

47/16

C14

10/16

C16
101

C12

10/16

C4

10/16

R6

10K

R14
10K

R1
56

R9
56

C1

47/16

C8
47/16

PH1

L1

J2A

J2B

1

2

3

4

5

6

X2

R18
7K5

R15
2K2

C13
10/16

C15
101

R16
7K5

IC2A

2068LD

R28

100K

R29
8K2

R27

47K

R30

470

R35

2K2

R31
180

C22

151

+12V

-12V

C26
822

C25
273

C27

47/16

IC2B

2068LD

R22

100K

R23
8K2

R21

47K

R20
470

R25
180

C21
151

C19
822

C18
273

C23
47/16

C30

10/16

C32
101

C28
10/16

C20

10/16

R24

10K

R32
10K

R19
56

R26
56

C17
47/16

C24

47/16

PH2

L2

J3A

J3B

1

2

3

4

5

6

X3

R36
7K5

R33
2K2

C29
10/16

C31
101

R34
7K5

PH2

PH

PH

LN

X21

X20

LN

X23

X22

2

1

3

4

6

5

7

9

8

10

12

11

SW3

1

2

3

4

5

6

X3

IC4B
4558LD

R70

1K6

VR6B

50KAX2

C51 56P

R51

1K6

VR6A

50KAX2

C37
56P

R78

33

C53
22/16

C48

22/16

IC4A
4558LD

+12V

R71 33

-12V

1

2

3

X15

1

2

3

X14

1

2

3

X16

C30

10/16

C42

10/16

R50
20K

R69

20K

2

1

3

4

6

5

7

9

8

10

12

11

SW6

1

2

3

4

5

6

X7

IC7B
4558LD

R114

1K6

VR11B

50KAX2

C81 56P

R107

1K6

VR11A

50KAX2

C68
56P

R126

33

C86
22/16

C77
22/16

IC7A
4558LD

+12V

R115 33

-12V

C63

10/16

C72

10/16

R106
20K

R113

20K

2

1

3

4

6

5

7

9

8

10

12

11

SW8

1

2

3

4

5

6

X9

IC11B

4558LD

R168

1K6

VR16B

50KAX2

C11556P

R148

1K6

VR16A

50KAX2

C100
56P

R180

33

C116
22/16

C109

22/16

IC11A
4558LD

+12V

R16933

-12V

C95

10/16

C103

10/16

R147
20K

R167

20K

R59

3K6

R48

33K

R49

1K5

R47

4K7

R52

33K

R54

2K4

R65

1K5

R75
33

R42
33K

R55

5K6

R57

8K2

R74
24K

R77
33

C46

68

C47

154

C27

154

C32

562

C54
682

C33

103

VR9A
50KEX2

VR7A
50KEX2

VR8A
50KEX2

IC5A
4558LD

C49
22/16

C55
22/16

+12V

-12V

R58

3K6

R46

33K

R45

1K5

R64 4K7

R53

33K

R39

2K4

R44

1K5

R43

33K

R56

5K6

R63

8K2

R76
24K

C43

68

C38

154

C45

154

C31

562

C56
682

C26

103

VR9B
50KEX2

VR7B
50KEX2

VR8B
50KEX2

IC5B
4558LD

R102

3K6

R104

33K

R105

1K5

R103

4K7

R92

33K

R94

2K4

R111

1K5

R120
33

R90
33K

R96

5K6

R98

8K2

R119
24K

R122
33

C75

68

C79

154

C61

154

C65

562

C82
682

C66

103

VR14A
50KEX2

VR12A
50KEX2

VR13A
50KEX2

IC8A
OASM

C78
22/16

C87
22/16

+12V

-12V

R101

3K6

R100

33K

R99

1K5

R1104K7

R93

33K

R83

2K4

R91

1K5

R95
33K

R97

5K6

R109

8K2

R121
24K

C69

68

C67

154

C73

154

C64

562

C83
682

C60

103

VR14B
50KEX2

VR12B
50KEX2

VR13B
50KE

IC8B
OASM

R155

3K6

R144

33K

R145

1K5

R1434K7

R138

33K

R150

2K4

R160

1K5

R172
33

R136
33K

R151

5K6

R153

8K2

R171
24K

R174
33

C110

68

C111

154

C92

154

C97

562

C117
682

C98

103

VR19A
50KEX2

VR17A
50KEX2

VR18A
50KEX2

IC12A
4558LD

C113
22/16

C118
22/16

+12V

-12V

R154

3K6

R142

33K

R141

1K5

R159

4K7

R149

33K

R133

2K4

R140

1K5

R139
33K

R152

5K6

R158

8K2

R173
24K

C104

68

C101

154

C108

154

C96

562

C119
682

C91
103

VR19B
50KEX2

VR17B
50KEX2

VR18B
50KEX2

IC12B
4558LD

C125
10/16

C131

10/16

R207

3K6

R209

33K

R218

1K5

R208 4K7

R197

33K

R199

2K4

R213

1K5

R220
33

R193
33K

R201

5K6

R203

8K2

R219
24K

R221
33

C136

68

C138

154

C124

154

C128

562

C142
682

C129

103

VR24A
50KEX2

VR22A
50KEX2

VR23A
50KEX2

IC14A
4558LD

C137
22/16

C144
22/16

+12V

-12V

R206

3K6

R205

33K

R204

1K5

R2124K7

R198

33K

R186

2K4

R194

1K5

R200
33K

R202

5K6

R211

8K2

C132

68

C130

154

C134

154

C127

562

C143
682

C123

103

VR24B
50KEX2

VR22B
50KEX2

VR23B
50KEX2

IC14B
4558LD

IC1A
2068LD

R28

30K 1%

R24

1K 1%

C23
101

R22

1K 1%

C8

22/16

C12

22/16

R4

1K2

C11

22/16

+12V

R23
100

C17
100/16

R30
100

C19

100/16

R19 30K 1%

C16
101

IC1B
2068LD

R13

30K 1%

R20

1K 1%

C9
101

R29

1K 1%

C20
22/16

C5
22/16

R5

1K2

C13
22/16

R25

30K 1%

C18
101

VR3
10KB

VR4
10KB

C15
47/16

IC2A
4558LD

IC2B
4558LD

R18

4K7

C14
33

C7

10/16

R26
33

R27
33

C21
100/16

C22
100/16

-12V

+12V

VR2
50KW

VR1
50KW

C3

393

C4

393

R6

10K

R17

10K

C2

472

C6

472

R3
9K1

R1
6K8

C10
221

1

2

3

X1

MIC2

-12V

1

2

3

X2

MIC1

C1

22/16

VR5A
10KAX2

VR5B
10KAX2

VR10A
10KAX2

VR10B
10KAX2

VR15A
10KAX2

VR15B
10KAX2

IC9A
4558LD

R125

30K

C85
68

R170
33

C80

22/16

-12V

R164

30K

R176
33

C88
22/16

+12V

IC9B
4558LD

R124

30K

C84
68

R165
30K

C89
10/16

C90

10/16

IC10A

4558LD

R137
68K

C94
68

R179
33

C107

22/16

-12V

R177
33

C120
22/16

+12V

5

6

7

IC10B
4558LD

R163

68K

C112
68

C106

10/16

C102

10/16

R40

33K

R41

33K

R33

33K

R34

33K

R32

10K

R31

20K

R35

10K

R36

20K

R88

33K

R89

33K

R84

33K

R85

33K

R82

10K

R81

20K

R86

10K

R87

20K

R134

33K

R135

33K

R129

33K

R130

33K

R128

10K

R127

20K

R131

10K

R132

20K

R191

33K

R192

33K

R187

33K

R188

33K

R184

10K

R189

10K

SW12

R210

5K1

D10
LED

+12V

IC13B
4558LD

R215

3K9

VR21B

50KBX2

R216

1M

C140 56

IC13A

4558LD

R195

3K9

VR21A
50KBX2

R196

1M

C126 56

R185
33K

R214
33K

C135
22/16

C141
22/16

R222
33

R217
33

+12V

-12V

VR20A
10KAX2

VR20B
10KAX2

L1

R1

L2

L3

L4

R2

R3

R4

C114

10/16

C93

10/16

R11
36K

R12
36K

R9

180K

R10

180K

IC3A
4558LD

R37
30K

C28
68

R61
33

C40
22/16

-12V

R62
33

C41
22/16

+12V

IC3B
4558LD

R38

30K

C29
68

C24

10/16

C25

10/16

C35

10/16

C36

10/16

IC6A
4558LD

R68

15K

C52
68

R79
10

C58

22/16

-12V

R72
10

C57

22/16

+12V

IC6B
4558LD

R73

15K

C50
68

R66

15K

R67

15K

D4
1N4148

D5

1N4148

D7

1N4148

D9
1N4148

2

4

3

1

SW1A
TALKOVER

R2
47K

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

LB1412

IC16

LB1412

1
2
3
4
5
6

RP2

2K2X5

LEDBAR2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

LB1412

IC15

LB1412

1
2
3
4
5
6

RP1

2K2X5

LEDBAR1

-12V

R227

5K6

C145

4.7/16

C148

1/16

R231

82K

C149

4.7/16

-12V

R232

5K6

C151

4.7/16

C150

1/16

R229

82K

C147

4.7/16

C152
22/16

R233
1M

C146
22/16

6

8

7

5

SW1B
TALKOVER

R16

4K3

+12V

c

D1

LED

10

12

11

9

SW1C

TALKOVER

14

16

15

13

SW1D

TALKOVER

SW9

R156

5K1

D8

LED

+12V

SW7

R108

5K1

D6

LED

+12V

SW5

R60

5K1

D3

LED

+12V

2

1

3

4

6

5

7

9

8

10

12

11

SW13

D12
LED

a

-12V

D13
LED

D14
LED

D11
LED

LR

CUE

PGM

R224
150K

R225
150K

1

2

3

X5

C44

10/16

C34

10/16

C70

10/16

C62

10/16

C105

10/16

C99

10/16

C76

10/16

C71

10/16

R223

24K

1

2

3

4

5

X12

L1

L2

L3

L4

L1

L2

L3

L4

R1 R2

R3

R4

R1

R2

R3

R4

C139

10/16

C133

10/16

2

1

3

4

6

5

7

8

10

9

11

12

14

13

15

16

SW11

 1

 3

L5

MIC 3

L6

R80
5K6

R157
5K6

C122

10/16

C121

10/16

SW4A

SW4B

SW10A

SW10B

R7
100K

R8
100K

R14
100K

R15
100K

R21
100K

R112
100K

R116
100K

R117
100K

BC1

BC2

BC3

BC4

SW4C

SW10C

BC1

BC2

BC3

BC4

X8

SW15B

SW15A

SW15C

SW14C

SW14A

SW14B

D2

LED

D15

LED

b

a

c

b

R236
100K

R235
100K

-12V

-12V

R183
20K

R190
20K

 

1

 

2

 

3

 

4

R4 L4

R230
20K

R234
20K

L4

R4

2

4

X6
PLUG04

X11
PLUG02

F
OR 
BITCOUNTER

D7

1N4002

C101
100/25

D3

1N4002

D4

1N4002

D5

1N4002

D6

1N4002

C99
1000/25

C98
1000/25

1

2

X17

C100
103

C102
103

C94
1/16

C97
1/16

+12V

-12V

X14

-12V

+12V

GND

Vin

1

GND

2

+12V

3

IC7
7812

Vin

2

GND

1

-12V

3

IC9
7912

1

2

3

X15

LIGHT

POWER

1

2

X16

C103
1/16

1

2

3

X18

Vin

1

GND

2

+5V

3

IC10
7805

+5V

SW110-220

FU1

0.5A

POWER SW

AC 220/110 V

C312
103

T1

TR05

1

2

3

X50

1

2

X51

S4

C117

CAP

AC

AC

GND

Schematic

Summary of Contents for BPM-500

Page 1: ...mp Mixer CONTENT S Connections Operations Page 2 5 Specifications Page 5 Parts Lists Page 6 8 PCBs Page 9 11 Schematics Page 12 Gemini Sound Products Corp 120 Clover Place P O Box 6928 Edison NJ 08818 6928 732 738 9003 Phone 732 738 9006 Fax ...

Page 2: ...Page2 1 2 3 4 5 6 7 24 8 9 10 11 12 20 13 20 15 8 9 10 11 14 20 8 9 10 11 16 20 8 9 10 11 18 17 19 26 27 32 33 36 34 35 42 41 43 39 40 31 38 37 30 29 28 23 22 21 25 ...

Page 3: ...Page3 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 54 54 55 55 56 58 61 57 57 59 59 64 60 60 62 62 53 63 65 ...

Page 4: ... GROUND LIFT SWITCH in the ground position if the noise level remains the same in either position CAUTION DO NOT TERMINATE THE AC GROUND ON THE POWER MIXER IN ANY WAY TERMINATION OF THE AC GROUND CAN BE HAZARDOUS Operation 1 POWER ON Once you have made all the equipment connections to your mixer press the POWER SWITCH 39 The power will turn on and the POWER LED 38 will glow RED 2 CHANNEL 1 The GAI...

Page 5: ...he selected channel The tonal qualities are set by the low mid and high controls of that same channel 11 TALKOVER SECTION The purpose of the talkover section is to allow the program playing to be muted so that the mic can be heard above the music The MIC TALKOVER SWITCH 7 controls MIC 1 and MIC 2 and has three settings When the MIC TALKOVER SWITCH 7 is in the bottom position MIC 1 and MIC 2 and ta...

Page 6: ...LDER LED VR INLAY PLATE LED HOLDER LED 3fLED 17mm HOLDER LED 3f 7mm PAD FOOT GND SCREW HOLDER BUSHING LED BNC DUST PROOF CLOTH VR DUST PROOF CLOTH SMALL VR DUST PROOF CLOTH SWING DUST PROOF CLOTH SCREEN SNAP RIVET DRYER PAN HEAD MACHINE SCREW PMS 2 6X4 B BAND HEAD TAPPING SCREW TW E BTB 3 TW 3 3X6 AB BAND HEAD TAPPING SCREW BTS 3 3X5 AB BAND HEAD TAPPING SCREW BTS 3 3X6 AB BAND HEAD TAPPING SCREW ...

Page 7: ...ED CIRCUIT NJM4556L INTEGRATED CIRCUIT NJM2068LD INTEGRATED CIRCUIT NJM7812FA INTEGRATED CIRCUIT NJM7805FA IC8 IC1 6 IC7 IC10 Designators Description Part ICs Item 1 2 3 4 Parts Lists PCB2 Phono 080 091 092 078 083 069 083 097 072 091 072 092 071 084 071 136 LIGHT EMITTING DIODE RED 3 15 PHONE JACK 6 3 PUSH SWITCH 2P2C L 12 5 SWITCH 4P2C L 12 5 SLIDE VR 45mm L 20 CH VOL MASTER 10KA 2 SLIDE VR 30mm...

Page 8: ... VOL MASTER 10KA 2 ROTARY VR 16f L 20 BOOTH CUE VOL 50KA 2 ROTARY VR 16f L 20 TONE 50KE 2 C C ROTARY VR 16f L 20 MIC VOL 10KB ROTARY VR 16f L 20 MIC TONE 50KW C C D4 D5 D7 D9 D1 3 D6 D8 D10 D11 15 Green 2 5x5 Yellow 2 5x5 Red 2 5x5 J11 SW11 SW5 SW7 SW9 SW12 SW13 15 VR5 VR10 VR15 VR20 VR6 VR11 VR16 VR7 9 VR12 14 VR17 19 VR22 24 VR3 VR4 VR1 VR2 Designators Description Part Electrical Parts Item 1 2 ...

Page 9: ...PCB3 Main Page 9 ...

Page 10: ...PCB2 Phono Page 10 ...

Page 11: ...PCB1 Input Output Page 11 ...

Page 12: ...R94 2K4 R111 1K5 R120 33 R90 33K R96 5K6 R98 8K2 R119 24K R122 33 C75 68 C79 154 C61 154 C65 562 C82 682 C66 103 VR14A 50KEX2 VR12A 50KEX2 VR13A 50KEX2 IC8A OASM C78 22 16 C87 22 16 12V 12V R101 3K6 R100 33K R99 1K5 R110 4K7 R93 33K R83 2K4 R91 1K5 R95 33K R97 5K6 R109 8K2 R121 24K C69 68 C67 154 C73 154 C64 562 C83 682 C60 103 VR14B 50KEX2 VR12B 50KEX2 VR13B 50KE IC8B OASM R155 3K6 R144 33K R145 ...

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