Gemini BPM-500 Service Manual Download | Manualshive

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SERVICE MANUAL

BPM-500

Stereo Preamp 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)

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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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