Gemini-PMX1400-mix-sm维修电路原理图.pdf

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1、(1) SERVICE MANUAL PMX-1400 Stereo Preamp Mixer CONTENTS: Connections as well as RF-45, which has a 45mm travel from side-to-side; and the PSF-45, which features a special “curve” designed for scratch mixing. Your Gemini mixer is equipped with an RG-45 PRO (RAIL GLIDE) 45MM DUAL-RAIL CROSSFADER feat

2、uring internal dual stainless steel rails that allow the slider to ride smoothly and accurately from end-to-end. RadioFans.CN 收音机爱好者资料库 (5) The following instructions are provided for those who purchase a crossfader replacement unit from an authorized Gemini dealer: 8. EQUALIZER: This unit features

3、 dual 7 band GRAPHIC EQUALIZERS (8, 22) that allow you to adjust the sound to fit any room. Activate the equalizer by pressing EQ BUTTON (28) (EQ LED is illuminated). By adjusting any of the 7 LEFT equalizer slide controls (8), you can cut or boost the tonal characteristics of the sound coming from

4、the LEFT speaker by 12 dB. Adjusting any of the 7 RIGHT equalizer slide controls (22) allows you to cut or boost the tonal characteristics of the sound coming from the RIGHT speaker by 12 dB. Deactivate the equalizer by pressing the EQ BUTTON (28) again (EQ LED is OFF). 9. OUTPUT CONTROL: The level

5、of the MAIN OUTPUT (34) is controlled by the MASTER (24) slide. Activating the MONO (23) button (MONO LED is illuminated) converts the overall output to mono. The BOOTH (29) control adjusts the level of the BOOTH OUTPUT (35). HINT: BOOTH OUTPUT IS USED BY SOME DJS TO RUN MONITOR SPEAKERS IN THE DJ B

6、OOTH. IT IS ALSO USED AS A SECOND ZONE OR AMP OUTPUT. NOTE: REC OUTPUT HAS NO LEVEL CONTROL. LEVEL IS CONTROLLED WITH THE CHANNEL SLIDES OF THE SELECTED CHANNEL(S). TONE IS CONTROLLED VIA THE EQUALIZERS. 10.TALKOVER: The purpose of the talkover is to allow the program playing to be muted so that the

7、 mic may be heard above the music. The MIC/TALKOVER SWITCH (7) controls MIC 1 and MIC 2 and has three settings. When MIC/TALKOVER (7) is in the BOTTOM position, MIC 1, MIC 2 and TALKOVER are all OFF. When MIC/TALKOVER (7) is in the CENTER position, MIC 1 and MIC 2 are ON. MIC INDICATOR (6) glows/TAL

8、KOVER is OFF. When MIC/TALKOVER SWITCH (7) is in the TOP position, MIC 1, MIC 2 and TALKOVER are ON and the volume of all sources except MIC inputs is lowered by 16 dB. 11.TREBLE (2) and BASS (3) controls allow you to adjust the tone of MIC 1 and MIC 2. MIC 1 LEVEL (5) controls the level of MIC 1 wh

9、ile MIC 2 LEVEL (4) controls the level of MIC 2. 12.CUE: By connecting a set of headphones to the HEADPHONE (32) jack, you can monitor any or all channels. Press CUE ASSIGN (20) buttons for Channels 1 through 4 and select the Channel(s) to be monitored. The respective LED indicators will glow. Use t

10、he CUE LEVEL (31) control to adjust the cue volume without changing the overall mix. By moving the CUE PGM PAN (30) control to the LEFT you will be able to monitor the assigned cue signal. Moving the control to the RIGHT allows you to monitor PGM (program) output. 13.DISPLAY: The DISPLAY (21) indica

11、tes the MASTER output of the left and right levels. SPECIFICATIONS: INPUTS: Phono.3 mV, 47 KOhm Line.150 mV, 27 KOhm MIC 1 LEVEL, BALANCE, CUE, ASSIGN EQ VR INLAY TRIM VR INLAY PLATE HOLDER LED 3f LED(17mm) HOLDER LED HOLDER LED WASHER XLR PCB SPACER SUPPORT PAD FOOT BNC DUST PROOF CLOTH DUST PROOF

12、CLOTH (VR) DUST PROOF CLOTH (KNOB-SWING) DUST PROOF CLOTH (VR) FADER DUST PROOF CLOTH GND SCREW FLAT-HEAD MACHINE SCREW; FMS 2X4 (Y) 262-044 262-045 262-046 262-052 262-053 PRINTED CIRCUIT BOARD PDM24S-1:IN/OUT PRINTED CIRCUIT BOARD PDM24S-2:MAIN PRINTED CIRCUIT BOARD PDM24S-4: FADER (73.513) PRINTE

13、D CIRCUIT BOARD PDM14-3:PHONE PRINTED CIRCUIT BOARD PDM14-5: PHONE JACK (2113) DescriptionPart # Printed Circuit Boards Item # 1 2 3 4 5 RadioFans.CN 收音机爱好者资料库 (6) Parts Lists - PCB1 Input/Output 079-027 079-003 081-027 092-078 161-105 161-106 RECTIFIER DIODE 1N4002 (1N4003,1N4004) SILICON DIODE 1N

14、4148 SLIDE SWITCH 2P2C PH/LINE PHONE JACK 6.3 4P RCA JACK P=14mm 6P RCA JACK P=14mm D3-8, D507, D508 D1, D2 SW1-3 J1 J2-5 J6 DesignatorsDescriptionPart # Electrical Parts Item # 1 2 3 4 5 6 076-095 076-104 TRANSISTOR 2SC2878 TRANSISTOR 2SA1048 (2SA1317) Q2-5 Q1 DesignatorsDescriptionPart # Transisto

15、rs Item # 1 2 074-145 074-107 074-114 INTEGRATED CIRCUIT NJM2068LD INTEGRATED CIRCUIT NJM7812FA INTEGRATED CIRCUIT NJM7912FA IC1-4 IC6 IC7 DesignatorsDescriptionPart # ICs Item # 1 2 3 082-019 082-028 083-069 083-097 072-035 072-107 072-113 071-101 071-159 080-091 080-079 080-080 080-078 LEVER SW 4P

16、2C P=18 PH/LN,LN/LN ROTARY SWITCH 1-2-5 L=17 FAD ASSIGN PUSH SWITCH 2P2C L=12.5 CUE,MONO PUSH SWITCH 4P2C L=12.5 SLIDE VR 45mm L=20 CH VOL MASTER 50KA2 SLIDE VR 30mm L=15 EQ 20KW C.C RAILGLIDE VR 45mm X-FADER 100KB2 ROTARY VR 16f L=20 TREBLE,BASS 10KB C.C ROTARY VR 16f L=20 MIC LEVEL 10KA LIGHT EMIT

17、TING DIODE (RED) LIGHT EMITTING DIODE (GREEN) LIGHT EMITTING DIODE (YELLOW) LIGHT EMITTING DIODE (RED) SW4-7 SW9-10 SW11-15 SW8 VR1-4 VR7-13 X-FADER VR14-15 VR5-6 Red 3.15 Green 2.5x6.5 Yellow 2.5x6.5 Red 2.5x6.5 DesignatorsDescriptionPart # Electrical Parts Item # 1 2 3 4 5 6 7 8 9 10 11 12 13 074-

18、104 074-145 074-115 074-022 INTEGRATED CIRCUIT NJM4558LD(M5218AL,BA4558N) INTEGRATED CIRCUIT NJM2068LD INTEGRATED CIRCUIT M5229P INTEGRATED CIRCUIT LB1403N IC11 IC8-10 IC12 IC13-16 DesignatorsDescriptionPart # ICs Item # 1 2 3 4 074-104 074-113 074-145 074-115 INTEGRATED CIRCUIT NJM4558LD(M5218AL,BA

19、4558N) INTEGRATED CIRCUIT NJM4556L INTEGRATED CIRCUIT NJM2068LD INTEGRATED CIRCUIT M5229P IC19, IC20 IC21 IC17 IC18 DesignatorsDescriptionPart # ICs Item # 1 2 3 4 080-091LIGHT EMITTING DIODE (RED) 3.15fD35-37 DesignatorsDescriptionPart # Diodes Item # 1 083-069 083-097 072-035 072-107 072-092 071-0

20、84 060-702 PUSH SWITCH 2P2C L=12.5 CUE,MONO PUSH SWITCH 4P2C L=12.5 EQ SLIDE VR 45mm L=20 CH VOL MASTER 50KA2 SLIDE VR 30mm L=15 EQ 20KW C.C SLIDE VR 45mm L=20 CUE PGM 20KB2 ROTARY VR 16f L=20 CUE LEVEL 50KA2 JUMP WIRE TYPE 0.5f P=5mm T/52mm SW16 SW17 VR24-25 VR17-23 VR26 VR16 J10 DesignatorsDescrip

21、tionPart # Electrical Parts Item # 1 2 3 4 5 6 7 Parts Lists - PCB2 Main Parts Lists - PCB3 Phono RadioFans.CN 收音机爱好者资料库 PCB1 - Input/Output Page 7 RadioFans.CN 收音机爱好者资料库 PCB2 - Main Page 8 RadioFans.CN 收音机爱好者资料库 PCB3 - Phono Page 9 RadioFans.CN 收音机爱好者资料库 IC1A 2068LD IC1B 2068LD R7 47 R1 1K 1% R

22、3 1K 1% R4 30K 1% R5 47 R9 30K 1% R2 30K 1%C1 101 C11 101 C7 101 C5 101 C6 47/16 C3 10/16 C2 22/16 C4 10/16 C8 47/16 X1 C10 10/16 C9 10/16 C12 22/16 R10 1K 1% R8 1K 1% R6 30K 1% J1 -12 +12 +12 -12 2 3 1 48 IC2A 2068LD IC2B 2068LD R22 100K R19 47R12 47 R20 8K2 R23180 R18 47K R17 8K2 R13 47K R11 180 R

23、15 100K C24 822 C22 101 C26 273 C15 101 C16 273 C20 822 C21 47/16 C13 47/16 C14 47/16 C18 47/16 C23 10/16 C17 10/16 R21 1K R16 1K R26 1K8 R25 1K8 C28 101 C29 101 C25 10/16 C30 10/16 C19 10/16 C27 10/16 +12 -12 IC3A 2068LD IC3B 2068LD R38 100K R35 47R28 47 R36 8K2 R39180 R34 47K R33 8K2 R29 47K R27 1

24、80 R31 100K C41 822 C42 101 C44 273 C33 101 C34 273 C38 822 C39 47/16 C31 47/16 C32 47/16 C35 47/16 C40 10/16 C36 10/16 R37 1K R32 1L R42 1K8 R41 1K8 C46 101 C47 101 C43 10/16 C48 10/16 C37 10/16 C45 10/16 +12 -12 IC4A 2068LD IC4B 2068LD R53 100K R51 47R44 47 R52 8K2 R55180 R50 47K R49 8K2 R45 47K R

25、43 180 R47 100K C60 822 C58 101 C62 273 C51 101 C53 273 C56 822 C57 47/16 C49 47/16 C50 47/16 C54 47/16 C59 10/16 C52 10/16 R54 1K R48 1K R58 1K8 R57 1K8 C64 101 C65 101 C61 10/16 C66 10/16 C55 10/16 C63 10/16 R24 1K8 R14 1K8 R30 1K8 R40 1K8 R56 1K8 R46 1K8 X2 X3 X4 X5 X6 R60 1K8 R59 1K8 C69 101 C68

26、 101 C70 10/16 C67 10/16 R62 1K8 R61 1K8 C72 101 C73 101 C74 10/16 C71 10/16 R78 180 R81 47K R79 330 R775K1 R84 180 R80 330 R83 5K1 C82 22/16 C81 22/16 R82 47K Q42SC2878 Q52SC2878 R70 180 R72 47K R71 330 R69 5K1 R76 180 R73 330 R75 5K1 C80 22/16 C79 22/16 R74 47K Q22SC2878 Q32SC2878 R65 47K R67 47K

27、R63 8K2 R68 8K2 C76 10/16 C77 10/16 D3 1N4002 D5 1N4002 D6 1N4002 D4 1N4002 C89 470/25 C90 470/25 C87 103 C88 103 C84 4,7/16 C85 4,7/16 -12 -12 +12 Vin 1 GND 2 +12V 3 IC67812 Vin 2 GND 1 -12V 3 IC7 7912 Q1 2SA1317 R66 560K D2 1N4148 D1 1N4148 C75 220/16 C78 4,7/16 +12 SW1A SW1B SW2A SW2B SW3A SW3B J

28、2A J2B J3A J3B J4A J4B J5A J5B J6A J6B J6C R64 1K 1 2 X12 D8 1N4002 D7 1N4002 C86 470/16 X7 X? D507 1N4002 D508 1N4002 1 2 3 4 5 X11 1 2 3 4 X8 R85 2M2 -12 MIC-2 PH1; L1 PH1/L1 L2 PH-2; L3 L4 PH-2/L3 PH-3/L5 PH-3; L5 L6 L7 L8 OUT REC. OUT BOOTH OUT AMP. +12 1 2 3 X14 X15 11 12 10 SW4D 2 3 1 SW4A 5 6

29、 4 SW4B 8 9 7 SW4C R85 47K R101 4K7 R86 47K R87 47K D9 LED +12 VR1A 50KA VR1B 50KA R88 47K VR5 10KA R110 10K R134 27K R135 22 R139 1K3 R136 22 R140 1K3 R109 1K8 R141 1K R111 10K IC8A 2068LD IC8B 2068LD C9247 C95 224 C97 223 C96 224 C98 223 C99 221 C100 10/16 C114 47/16 C115 47/16 C10147/16 -12 +12 R

30、112 10K R113 10K R142 47K R143 47K R144 47K R145 47K R146 47K R147 47K R148 47K R149 47K -VCC 20 GND 19 +VCC 18 OUT 17 N INP 16 P INP 15 NF7 14 IN7 13 NF6 12 IN6 11 NF1 2 IN1 1 IN2 3 NF2 4 IN3 5 NF3 6 IN4 7 NF4 8 IN5 9 NF5 10 IC12 M5229P R150 10 R151 10 R155 3K3 R156 3K3 C125 471 C127 821 C128 272 C

31、129 682 C130 123 C131 124 C126 124 C139 563 C138 183 C137 822 C135 393 C116 22/16 C102 10/16 C134 1/16 C133 2.2/16 C132 0.47/16 C103 10/16 -12+12 R157 100K R137 10 R138 10 IC9A 2068LD C140101 C144 22/16 C117 22/16 C118 22/16 -12 +12 R159 20K C104 47/16 C105 47/16 R160 20K IC9B 2068LD C141 101 R158 1

32、00K SW8A SW8B SW8C C145 22/16 C146 22/16 SW9A SW9B SW10B SW10A R114 10K R115 10K C119 22/16 1 9 2 6 3 4 7 8 5 IC13 LB1403N 1 9 2 6 3 4 7 8 5 IC14 LB1403N 1 9 2 6 3 4 7 8 5 IC15 LB1403N 1 9 2 6 3 4 7 8 5 IC16 LB1403N D11 LED D12 LED D13 LED D14 LED D15 LED D16 LED D17 LED D18 LED D19 LED D20 LED D21

33、LED D22 LED D23 LED D24 LED D25 LED D26 LED D27 LED D28 LED D29 LED D30 LED R116 10K R161 100K R165 120K R167 160K R117 10K R169 8K2 R118 10K R162 100K R166 120K R168 160K R119 10K R170 8K2 R172 47 R173 47 R174 47 C106 10/16 C107 4.7/16 C108 10/16 C109 10/16 C110 4.7/16 C111 10/16 R152 47 R175 47K R

34、153 10 R154 10 IC10A 2068LD C14247 C147 22/16 C121 22/16 C122 22/16 -12 +12 C148 100/16 C149 100/16 IC10B 2068LD C14347 R176 47K C150 22/16 SW8D +12 -12 +12 -12 R122 10K VR7 20KW VR8 20KW VR9 20KW VR10 20KW VR11 20KW VR12 20KW VR14 10KB VR15 10KB VR13 20KW C136 471 SW12A SW12B X16 11 12 10 SW5D 2 3

35、1 SW5A 5 6 4 SW5B 8 9 7 SW5C R89 47K R103 4K7 R90 47K R91 47K D31 LED +12 VR2A 50KA VR2B 50KA R92 47K R123 10K R124 10K SW13A SW13B X17 11 12 10 SW6D 2 3 1 SW6A 5 6 4 SW6B 8 9 7 SW6C R93 47K R104 4K7 R94 47K R95 47K D32 LED +12 VR3A 50KA VR3B 50KA R96 47K R125 10K R126 10K SW14A SW14B X18 11 12 10 S

36、W7D 2 3 1 SW7A 5 6 4 SW7B 8 9 7 SW7C R97 47K R105 4K7 R98 47K R99 47K D33 LED +12 VR4A 50KA VR4B 50KA R100 47K R127 10K R128 10K SW15A SW15B R106 4K7 D34 LED +12 R129 10K IC11A 4558 IC11B 4558 R177 27K R163 47K R164 47K R178 27K C151 22/16 C152 22/16 C112 10/16 C113 10/16 C93 47 C94 47 C123 22/16 R1

37、88 47 C124 22/16 +12 1L 1R 2L 2R 3L 3R 4L 4R 4R 3R 2R 1R 4L 3L 2L 1L 4R 3R 2R 1R 1L 2L 3L 4L +V INDGND +V INDGND VR6 10KA R171 47 +12 1 2 3 X19 1 2 3 X24 X23 +12-12 X20 X22 QUE QUE QUE QUE CH-1 CH-2 CH-3 CH-4 MIC-1 MIC-2 X-FAD. ASSIGN X-FAD. ASSIGN A B T.O ON OFF T.O. 1 2 X21 T1 TR05 1 2 X28 SW18 F

38、SW19 SW-SPST C141 103 J7 PLUG J8 PLUG J9 LAMP AC 220/110 V SW X27 R87B100KB R87A 100KB CROSS FADER X30 PLUG06 059-166 Page 10 Schematic A RadioFans.CN 收音机爱好者资料库 +12 -12 X31 -VCC 20 GND 19 +VCC 18 OUT 17 N INP 16 P INP 15 NF7 14 IN7 13 NF6 12 IN6 11 NF1 2 IN1 1 IN2 3 NF2 4 IN3 5 NF3 6 IN4 7 NF4 8 IN

39、5 9 NF5 10 IC18 M5229P R179 47 R180 47 R211 3K3 R212 3K3 C180 471 C186 124 C189 393 C185 123 C184 682 C183 272 C182 821 C191 124 C187 563 C188 183 C175 822 C181 471 C91 22/16 C120 22/16 C159 10/16 C192 2,2/16 C190 1/16 C193 0,47/16 C160 10/16 -12 +12 R215 12K R181 47R182 47 IC17A 2068LD C194 68 C161

40、 10/16 C153 22/16 C154 22/16 +12 IC17B 2068LD C19568 R216 12K C164 10/16 R199 10K R200 10K R201 7K5 R202 7K5 R217 4K7 D35 LED +12 -12 R192 1K R193 1K R218 4K7 D36 LED +12 VR24A 50KA VR24B 50KA IC19A 4558 IC19B 4558 R187 100K R189 100K R219 6K8 R207 1K3 R220 6K8 R208 1K3 C165 10/16 C166 10/16 C155 22

41、/16 C156 22/16 C176 47 C177 47 R221 10R222 10 +12 -12 VR25A 50KA VR25B 50KA IC20A 4558 IC20B 4558 R190 100K R191 100K R196 4K7 R194 1K R197 4K7 R195 1K C167 10/16 C168 10/16 C157 22/16 C158 22/16 C178 47 C179 47 R223 10R224 10 +12 -12 VR26A 20KW VR26B 20KW R203 10K R227 18K R204 10K R205 18K R228 18

42、K R229 18K R230 18K R231 18K VR16A 50KA VR16B 50KA IC21A 4556 IC21B 4556 R185 100K R186 100K R209 1K3 R213 91K R210 1K3 C169 10/16 C170 10/16 C196 470/16 C197 470/16 C19839 C199 39 R225 10R226 10 +12 -12 C171 10/16 C172 10/16 R183 47 R184 47 C200 222 C201 222 +12 -12 X10 R206 10K VR17 20KW VR18 20KW

43、 VR19 20KW VR20 20KW VR21 20KW VR22 20KW VR23 20KW R214 91K SW16A SW02 SW16B SW02 SW17A SW04 SW17B SW04 SW17C SW04 +12 -12 ML MR RR RL MLML MRMR BL BR RL RR BL BR ML MR RRRL X26 X28 1 2 X32 C173 10/16 C174 10/16 D37 LED R198 4K7 +12 X30 J10 PHONEJACK2 X29 2001 Schematic B Page 11 RadioFans.CN 收音机爱好者资料库