Gemini-PMX1100-mix-sm维修电路原理图.pdf

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1、Page 1 SERVICE MANUAL PMX-1100 Stereo Preamp Mixer Gemini Sound Products Corp. 120 Clover Place P.O. Box 6928 Edison, NJ 08818-6928 732-738-9003 (Phone) 732-738-9006 (Fax) CONTENTS: Connections & Operations:.Page 2-4 Specifications:.Page 4 Parts Lists:.Page 4 PCBs:.Page 5 Schematics.Page 6 RadioFans

2、.CN 收音机爱 好者资料库 Page 2 1 7 9 11 13 8 10 12 14 2 3 4 5 6 18 18 24 22 23 20 21 15 3132 343835 36 42 39 45 37 43403741 33 17 19 RadioFans.CN 收音机爱 好者资料库 Page 3 6. Headphones can be plugged into the front panel mounted HEADPHONE (4) jack. Operation 1. POWER ON: Once you have made all the equipment connect

3、ions to your mixer, press the POWER SWITCH (1). The power will turn on and the POWER LEDS (17) will glow. 2. CHANNEL 1: Switch # (7) allows you to select the PHONO 1/LINE 2 (41) or the LINE 1 (43) input. The CHANNEL SLIDE (8) controls the input level of this channel. 3. CHANNEL 2: Switch # (9) allow

4、s you to select the PHONO 2/LINE 4 (38) or the LINE 3 (40) input. The CHANNEL SLIDE (10) controls the input level of this channel. 4. CHANNEL 3: Switch # (11) allows you to select the PHONO 3/LINE 6 (35) or the LINE 5 (37) input. The CHANNEL SLIDE (12) controls the input level of this channel. 5. CH

5、ANNEL 4: Switch # (13) allows you to select the LINE 7 (34) or the MIC 2 (33) input. The CHANNEL SLIDE (14) controls the input level of this channel. 6. CROSSFADER SECTION: The CROSSFADER (2) allows the mixing of one source from CHANNEL 2 into another source from CHANNEL 3. The CROSSFADER (2) in you

6、r unit is removable and if the need arises can be easily replaced. Crossfader units are available in three varieties. Part # RF-45 (which is identical to the crossfader supplied with the mixer) has a 45 mm travel from side to side. Part # RF-30 is available with a 30 mm travel distance. Also availab

7、le is the PSF-45 with a special curve designed for scratch mixing. Just purchase one of these crossfader units from your Gemini dealer and follow these instructions: Introduction Congratulations on purchasing the Gemini PMX-1100 mixer. This state-of- the-art mixer is backed by a three year warranty,

8、 excluding crossfader and channel slides. Prior to use, we suggest that you carefully read all the instructions. Features 4 Stereo Channels State of the Art Cue Section 3 Phono/Line Convertible, 4 Line, and 2 Mic Inputs Talkover Master and Record outputs Master Treble and Bass Controls Cautions 1. A

9、ll operating instructions should be read before using this equipment. 2. To reduce the risk of electrical shock, do not open the unit. There are NO USER REPLACEABLE PARTS INSIDE. Please refer servicing to a qualified service technician. In the U.S.A., if you have any problems with this unit, call 1-

10、732-738-9003 for customer service. Do not return equipment to your dealer. 3. Do not expose this unit to direct sunlight or to a heat source such as a radiator or stove. 4. This unit should be cleaned only with a damp cloth. Avoid solvents or other cleaning detergents. 5. When moving this equipment,

11、 it should be placed in its original carton and packaging. This will reduce the risk of damage during transit. 6. DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. 7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY CONTROLS OR SWITCHES. Connections 1. Plug in the 15V AC Adapter (37). 2. Make sure that t

12、he POWER (1) switch is in the off position. The POWER LEDS (17) will be off. 3. The PMX-1100 is supplied with 2 sets of output jacks. The MAIN OUTPUT (31) jacks are unbalanced and used to connect to your main amplifier. The REC OUTPUT (32) jacks can be used to connect the mixer to the record input o

13、f your recorder enabling you to record your mix. 4. The MIC 1 (3) input (found on the front panel) accepts an XLR connector, and accepts balanced & unbalanced microphones. The MIC 2 (33) accepts a 1/4” connector and balanced & unbalanced microphones. 5. On the rear panel are 3 stereo PHONO/LINE (35,

14、 38, 41) inputs and 4 stereo LINE (34, 37, 40, 41) inputs. The PHONO/LINE SWITCH (36) enables you to set the (35) input to Phono or Line. The PHONO/LINE SWITCH (39) enables you to set the (38) input to Phono or Line. The PHONO/LINE SWITCH (42) enables you to set the (41) input to Phono or Line. The

15、phono inputs will accept only turntables with a magnetic cartridge. A GROUND SCREW (45) for you to ground your turntables is located on the rear panel. The stereo line inputs will accept any line level input such as a CD player, a cassette player, etc. 1. Unscrew the outside FADER PLATE SCREWS (B).

16、Do not touch the INSIDE SCREWS (C). 2. Carefully lift the fader and unplug the CABLE (D). 3. Plug the new fader into the cable and place it back in the mixer. 4. Screw the fader to the mixer. 7. OUTPUT CONTROL SECTION: The level of the AMP OUT (31) is controlled by the MASTER (23) slide. The Master

17、TREBLE (20) and BASS (21) controls allow you to adjust the output of channels 1 - 4. NOTENOTENOTENOTENOTE: The RECORD OUT (32) RECORD OUT (32) RECORD OUT (32) RECORD OUT (32) RECORD OUT (32) has no level control. The level is set by the channel slides of the selected channel. 8. TALKOVER SECTION: Th

18、e 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 (5) controls MIC 1 and has three settings. When the MIC/TALKOVER SWITCH (5) is in the bottom position, the MIC and talkover are off. When the MIC/ TALKO

19、VER SWITCH (5) is in the center position MIC 1 is on, the MIC INDICATOR (6) will glow, but talkover is off. When the MIC/ TALKOVER SWITCH (5) is in the top position, MIC 1 and talkover will be on and the volume of all sources except the MIC input are lowered by 16dB. The MIC LEVEL (15) controls the

20、level of MIC 1. RadioFans.CN 收音机爱 好者资料库 Page 4 PARTS LIST: INTEGRATED CIRCUIT NJM2068LD INTEGRATED CIRCUIT NJM4556L INTEGRATED CIRCUIT NJM4558LD (M5218AL,BA4558N) INTEGRATED CIRCUIT NJM4558DD INTEGRATED CIRCUIT NJM7812FA INTEGRATED CIRCUIT NJM7912FA INTEGRATED CIRCUIT LB1403N (BA6124) ICs IC7, IC2,

21、IC6, IC5, IC4 IC15 IC12, IC11, IC8 IC3, IC1 IC16 IC17 IC10, IC14, IC13, IC9 1 2 3 4 5 6 7 074-145 074-113 074-104 074-163 074-107 074-114 074-022 Item Designators Description Part # RECTIFIER DIODE 1N4002 (1N4003, 1N4004) LIGHT EMITTING DIODE (GREEN) 3.15 LIGHT EMITTING DIODE (RED) 3.15 LIGHT EMITTI

22、NG DIODE (YELLOW) 3.15 Diodes D26, D27 D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17 D1,D2,D3,D4,D5, D22, D23, D24, D25 D18, D19, D20, D21 1 2 3 4 079-027 080-104 080-091 080-103 Item Designators Description Part # Item Description Part # DC JACK 2.5 POWER SWITCH UL PHONE JACK XLR DJ MIC Ot

23、her 1 2 3 092-074 083-099 092-108 Item Description Part # Mechanical Parts PANEL CONTROL PANEL REAR COVER BOTTOM SWING LEVEL KNOB PUSH (SMALL) BUSHING FOR KNOB (SMALL) KNOB SLIDE (SMALL) KNOB SLIDE (BIG) KNOB ROTARY (A) KNOB INLAY (SILVER) TRIM VR PAD FOOT GIFT BOX OWNERS MANUAL POLYFORM POLYFOAM PL

24、ATE 140mm180mm58mm WARRANTY CARD GND SCREW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 FACEPPMX1100 034-124 032-123 023-674 002-531 002-532 002-726 002-724 003-109 148-312 003-736 049-206 255-230 257-016 153-224 153-223 156-089 146-710 LEVER SW 4P2C P=18 PUSH SWITCH 2P2C L=12.5 PHONE JACK 6.3 LEVER

25、 SW 4P3C P=24 RAILGLIDE VR 45mm X-FADER 100KB2 SLIDE VR 30mm L=15 CUE FADER 20KB2 ROTARY VR 14 (F) L=22.5 CH-TONE 20KW2 CC ROTARY VR 11 (F) L=22.5 BOOTH CUE VOL 50KA ROTARY VR 14 (F) L=22.5 CUE 50KA2 SLIDE SWITCH 2P2C SLIDE VR 45mm L=20 CH VOL MASTER 50KA2 2P RCA JACK P=14 Electrical Parts SW8, SW6,

26、 SW4, SW2 SW9, SW7, SW5, SW3 J11, J1 SW1 X-FADER VR8 VR7, VR6 VR1 VR9 SW10, SW11, SW12 VR3, VR2, VRV4, VR5, VR10 J2, J3, J4, J5, J6, J7, J8, J9, J10 1 2 3 4 5 6 7 8 9 10 11 12 082-019 083-080 092-078 082-022 072-113 072-092 071-230 071-114 071-166 081-004 072-035 161-160 Item Designators Description

27、 Part # 9. CUE SECTION: By connecting a set of headphones to the HEADPHONE (4) jack, you can monitor any or all of the channels. Press the CUE ASSIGN (18) buttons for channels 1 - 4 to select the channel or channels to be monitored and their respective LED indicators will glow. Use the CUE LEVEL (24

28、) control to adjust the cue volume without effecting the overall mix. By moving the CUE PGM PAN (22) control to the left you will be able to monitor the assigned cue signal. Moving the control to the right will monitor the PGM (program) output. Rotating to the right will monitor the PGM (program) ou

29、tput. 10.DISPLAY: The DISPLAY (19) indicates the MASTER output left and right levels. Specifications INPUTS: MIC 1.1.5mV 2kOhm balanced MIC 2 .1.5mV 2KOhm balanced Phono 1kHz.2mV 47kOhm Line.100 mV 27kOhm OUTPUTS: Amp/Booth.0 dB 1V 400Ohm Max.20V Peak to Peak Rec.225mV 5kOhm GENERAL: Bass. 12dB High

30、. 12dB Frequency Response.20Hz - 20KHz +/- 2dB Distortion.less than 0.02% S/N Ratio.better than 80dB Talkover Attenuation.16dB Power Source.adapter - 115V/15V AC 0.5A .230V/15V AC 0.5A Dimensions.19”w x 3”d x 7”h (483 x 76 x 178 mm) Weight.6.25lbs (2.84 kg) RadioFans.CN 收音机爱 好者资料库 PMX1100 224 C85 22

31、/16 C84 22/16 C12 10K R6 10K R17 10K R97 47K R100 47K R101 +12 -12 J1 S R T 30K1 1% R12 1K 1% R15 1K 1% R9 22/16 C24 22/16 C19 22/16 C11 47/16 C18 47/16 C17 101 C13 101 C14 30K1 1% R11 10 R1810 R19 4558LD IC3B 7 5 6 4558LD IC3A 84 1 3 2 +12 -12 X8 2 1 6K2 R182 6K2 R176 3K6 R171 3K6 R169 2K4 R155 2K4

32、 R144 2K4 R133 2K4 R129 2K4 R124 3K6 R117 6K2 R175 6K2 R170 3K6 R168 3K6 R154 2K4 R146 2K4 R137 2K4 R132 2K4 R128 2K4 R123 R L 6 5 4 3 2 1 X4 X1 J11 S R T SOCKET03 X10 XLR XLR1 3 - 1 G 2 + X2 MIC XLR LN7 PH3/LN6 LN5 PH2/LN4 PH1/LN2 MIC LN3 LN1 X11 SW10B4 6 5 SW10A1 3 2 X12 SW11B4 6 5 SW11A1 3 2 X13

33、3 2 1 SW12B4 6 5 SW12A1 3 2 22/16 C15 +12 7912 IC17 7812 IC16 -12 1/16 C125 1/16 C126 103 C135 1000/25 C133 1000/25 C134 1N4002 D26 1N4002 D27 22/16 C124 4558LD IC12A 84 1 3 2 4558LD IC12B 7 5 6 ML MR MR ML 47K R127 330 R131 47/16 C87 10/16 C113 10/16 C106 PLUG03 X7 222 C132 222 C131 56 R188 56 R187

34、 36K R184 22/16 C123 -12 +12 10 R17710 R186 56 C129 56 C128 470/16 C136 470/16 C127 4.7/16 C121 4.7/16 C120 2K7 R167 36K R185 2K7 R178 100K R173 100K R172 4556 IC15B 7 5 6 4556 IC15A 84 1 3 2 50KA VR9B 50KA VR9A A3 A2 A1 20KBX2 VR8A 20KBX2 VR8B 51K R166 22/16 C9856C112 4558LD IC11B 7 5 6 51K R143 51

35、K R165 22/16 C100 +12 -12 22/16 C117 22/16 C103 56C102 4558LD IC11A 84 1 3 2 10 R139 10 R152 51K R134 10K R147 10K R145 10/16 C89 10/16 C86 J9 G R L 47K R119 330 R122 47/16 C88 10/16 C130 0.1/16 C116 10/16 C99 10/16 C122 0.1/16 C104 10/16 C96 8K2 R181 10K R174 160K R183 120K R153 100K R141 10K R135

36、8K2 R179 10K R164 160K R180 120K R140 100K R136 10K R130 LED D25 LED D23 LED D21 LED D19 LED D17 LED D15 LED D13 LED D11 LED D9 LED D7 LED D24 LED D22 LED D20 LED D18 LED D16 LED D14 LED D12 LED D10 LED D8 LED D6 LB1403N IC14 5 8 7 4 3 6 2 9 1 LB1403N IC10 5 8 7 4 3 6 2 9 1 LB1403N IC13 5 8 7 4 3 6

37、2 9 1 LB1403N IC9 5 8 7 4 3 6 2 9 1 2K R142 2K R149 201 C114 10/16 C118 820 R160 9K1 R150 100K R161 50KAX2 VR10B 2K R159 2K R156 10/16 C111 4558LD IC8B 7 5 6 20KWX2 VR6B B3 B2 B1 20KWX2 VR6A A3 A2 A1 222 C95 104 C92 104 C93 56 C101 4K7 R121 4K7 R118 4K7 R126 10K R125 10/16 C107 -12+12 22/16 C109 22/

38、16 C108 4558LD IC8A 84 1 3 2 20KWX2 VR7B 20KWX2 VR7A A3 A2 A1 222 C90 104 C91 104 C94 56 C97 10 R157 10 R158 4K7 R114 4K7 R115 4K7 R120 10K R116 50KAX2 VR10A -12 +12 10 R14810 R138 201 C115 22/16 C110 22/16 C105 10/16 C119 820 R163 9K1 R151 100K R162 J10 2068LD IC7B 7 5 6 2068LD IC7A 84 1 3 2 100/16

39、 C81 100/16 C83 68K R10456 C74 +12 -12 22/16 C79 22/16 C80 56C75 10 R109 10 R95 68K R99 2068LD IC2B 7 5 6 2068LD IC2A 84 1 3 2 SW03*4 SW1A SW03*4 SW1B 18K R7 22/16 C20 33PC21 100K R13 18K R8 +12 -12 22/16 C16 22/16 C8 22/16 C10 33PC23 10 R10 10 R25 100K R14 -12 +12 LED D1 4K7 R16 SW03*4 SW1D SW1C 15

40、P C3 50KA VR1 3 2 1 12K R4 +12 -12 30K1 1% R2 1K 1% R5 1K 1% R1 22/16 C6 22/16 C5 22/16 C4 47/16 C9 47/16 C7 101 C1 101 C2 30K1 1% R3 10 R2110 R20 4558LD IC1B 7 5 6 4558LD IC1A 84 1 3 2 SW6B SW6D SW6C SW6A SW4B SW4D SW4C SW4A X6 X5 X3 SW9B 4 6 5 SW9A 1 3 2 36K R106 -12 LED D5 36K R103 36K R102 4K7 R

41、111 36K R105 24K R112 24K R113 24K R107 24K R98 50KAX2 VR5B SW7B 4 6 5 SW7A 1 3 2 36K R76 -12 LED D4 36K R80 36K R79 4K7 R87 36K R75 24K R74 24K R73 24K R69 24K R66 50KAX2 VR5A 50KAX2 VR4B SW5B 4 6 5 SW5A 1 3 2 36K R48 -12 LED D3 36K R51 36K R50 4K7 R60 36K R47 10/16 C22 50KAX2 VR4A 47K R29 47K R32

42、24K R53 24K R52 SW8D 10 12 11 SW8C 7 9 8 SW8B4 6 5 SW8A1 3 2 SW3B 4 6 5 SW3A 1 3 2 36K R24 50KAX2 VR2B 50KAX2 VR2A -12 LED D2 36K R28 36K R27 4K7 R38 36K R23 SW2B SW2D SW2C SW2A 10/16 C25 24K R61 24K R63 50KAX2 VR3B 50KAX2 VR3A J8 J6 J7 J4 J5 J2 J3 G R L 10/16 C78 10/16 C76 101 C82 101 C77 1K8 R110

43、1K8 R108 1K8 R85 1K8 R81 1K8 R54 1K8 R58 1K8 R34 1K8 R30 10/16 C61 10/16 C63 10/16 C58 10/16 C62 101 C60 101 C59 1K8 R78 1K8 R77 1K R88 1K R84 47/16 C68 47/16 C70 47/16 C73 47/16 C71 822 C66 273 C69 56 C72 273 C64 56 C65 822 C67 100K R90 180 R93 47K R92 8K2 R89 47K R82 180 R96 8K2 R86 10 R9410 R91 1

44、00K R83 2068LD IC6B 7 5 6 2068LD IC6A 84 1 3 2 -12 +12 10/16 C45 10/16 C47 10/16 C42 10/16 C46 101 C44 101 C43 1K8 R49 1K8 R46 1K R64 1K R57 47/16 C53 47/16 C54 47/16 C57 47/16 C55 822 C49 273 C52 56 C56 273 C48 56 C51 822 C50 100K R65 180 R68 47K R67 8K2 R62 47K R55 180 R70 8K2 R59 10 R7210 R71 100K R56 2068LD IC5B 7 5 6 2068LD IC5A 84 1 3 2 -12 +12 10/16 C29 10/16 C31 10/16 C27 10/16 C30 101 C28 101 C26 1K8 R26 1K8 R22 1K R39 1K R36 47/16 C41 47/16 C38 47/16 C40 47/16 C37 822 C33 273 C36