Gemini-PDM10-mix-sm维修电路原理图.pdf

Page 1SERVICE MANUALPDM-10Stereo Preamp MixerCONTENTS:Connections & Operations:.Page 2-5Specifications:.Page 5Parts Lists:.Page 5-6PCBs:.Page 7-8Schematics:.Page 9-10Gemini Sound Products Corp.120 Clover Place P.O. Box 6928Edison, NJ 08818-6928732-738-9003 (Phone) 732-738-9006 (Fax)RadioFans.CN 收音机爱 好者资料库Page 212345678915101120171813231614252824271818181921221226RadioFans.CN 收音机爱 好者资料库Page 33030293131323233333434353537373838404041414636453942434344Page 4Connections1. Before plugging in the power cord, make sure that the VOLTAGESELECTOR (29) switch is set to the correct voltage.NOTENOTENOTENOTENOTE: This product is double insulated and not intendedto be grounded.2. Make sure that the POWER (25) switch is in the off position. ThePOWER LED (26) will be off.3. The PDM-10 is supplied with 3 sets of amp output jacks. The MAINOUTPUT (31) jacks are unbalanced and used to connect to yourmain amplifier. The REC OUTPUT (32) jacks can be used to connectthe mixer to the record input of your recorder enabling you to recordyour mix. The BOOTH OUTPUT (30) jacks allow you to hook up anadditional amplifier.4. For your convenience, there are 2 inputs for the mic. The MIC (1)input (found on the front panel) accepts an XLR connector. The MIC(44) input (found on the rear panel) accepts 1/4 connectors. Allaccept balanced and unbalanced microphones.5. On the rear panel are 3 stereo PHONO/LINE (35, 38, 41) inputs and5 stereo LINE (33, 34, 37, 40, 43) 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 orLine. The PHONO/LINE SWITCH (42) enables you to set the (41)input to Phono or Line. The phono inputs will accept only turntableswith a magnetic cartridge. A GROUND SCREW (45) for you toground your turntables is located on the rear panel. The stereo lineinputs will accept any line level input such as a CD player, acassette player, etc.6. Headphones can be plugged into the front panel mountedHEADPHONE (28) jack.Using the Ground Lift SwitchDepending on your system configuration, sometimes applying theground will create a quieter signal path. Sometimes lifting the groundcan eliminate ground loops and hum to create a quieter signal path.1. With the mixer on, listen to the system in idle mode (no signalpresent) with the ground applied (the GROUND LIFT SWITCH (46)in the left position).2. Then turn the power off before moving the GROUND LIFTSWITCH (46). Lift the ground by moving the GROUND LIFT SWITCHto the right, turn the power back on and listen to determine whichposition will provide a signal devoid of background noise and hum.Keep the GROUND LIFT SWITCH in the ground position if the noiselevel remains the same in either position.CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWERMIXER IN ANY WAY. TERMINATION OF THE AC GROUND CAN BEHAZARDOUS.Operation1. POWER ON: Once you have made all the equipment connections toyour mixer, press the POWER SWITCH (25). The power will turn onand the POWER LED (26) will glow RED.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 theinput level of this channel.3. CHANNEL 2: Switch # (9) allows you to select the PHONO 2/LINE 4(38) or the LINE 3 (40) input. The CHANNEL SLIDE (10) controls theinput 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 theinput level of this channel.5. CHANNEL 4: Switch # (13) allows you to select the LINE 7 (34) orthe LINE 8 (33) input. The CHANNEL SLIDE (14) controls the inputlevel of this channel.6. CROSSFADER SECTION: The CROSSFADER (16) allows the mixingof one source into another. The PDM-10 features an assignablecrossfader. The ASSIGN (15, 17) switches allow you to selectwhich channel will play through each side of the crossfader. TheASSIGN (15) switch has 5 settings (OFF, 1, 2, 3 or 4) and allowsyou to select channel 1, 2, 3 or 4 to play through the left side of thecrossfader. The ASSIGN (17) switch has 5 settings (OFF, 1, 2, 3 or4) and allows you to select channel 1, 2, 3 or 4 to play through theright side of the crossfader. With the ASSIGN switch in the offposition, that side of the crossfader will be inactive. TheCROSSFADER (16) in your unit is removable and if the need arisescan be easily replaced. Crossfader units are available in threevarieties. Part # RF-45 (which is identical to the crossfader suppliedwith the mixer) has a 45 mm travel from side to side. Part # RF-30 isavailable with a 30 mm travel distance. Also available is the PSF-45with a special curve designed for scratch mixing. Just purchaseone of these crossfader units from your Gemini dealer and followthese instructions:1. Unscrew the outside FADER PLATE SCREWS (B). Do nottouch 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 themixer.4. Screw the fader to the mixer.7. OUTPUT CONTROL SECTION: The level of the MAIN AMP OUT (31)is controlled by the MASTER (23) slide. The Master TREBLE (20)and BASS (21) controls allow you to adjust the output of channels 1- 4. The BOOTH (27) control adjusts the level of the BOOTHOUTPUT (30). HINT: The booth output is used by some DJs to runmonitor speakers in their DJ booth. You can also use it as a secondZONE or AMP output.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 selectedchannel.8. TALKOVER SECTION: The purpose of the talkover section is to allowthe program playing to be muted so that the mic can be heard abovethe music. The MIC/TALKOVER SWITCH (5) has three settings.When the MIC/TALKOVER SWITCH (5) is in the bottom position, themic and talkover are both off. When the MIC/TALKOVER SWITCH(5) is in the center position the mic is on, the MIC INDICATOR (6)will glow, but talkover is off. When the MIC/TALKOVER SWITCH (5)is in the top position, the mic and talkover will be on and the volumeof all sources except the Mic input are lowered by 16 dB. TheTREBLE (2) and BASS (3) controls allow you to fully adjust the toneof the MIC. LEVEL (4) controls the level of the MIC.Page 59. CUE SECTION: By connecting a set of headphones to theHEADPHONE (28) jack, you can monitor any or all of the channels.Press the CUE ASSIGN (18) buttons for channels 1 - 4 to select thechannel or channels to be monitored and their respective LEDindicators will glow. Use the CUE LEVEL (24) control to adjust thecue volume without effecting the overall mix. By moving the CUEPGM PAN (22) control to the left you will be able to monitor theassigned cue signal. Moving the control to the right will monitor thePGM (program) output. Rotating to the right will monitor the PGM(program) output.10.DISPLAY: The DISPLAY (19) indicates the MASTER output left andright levels.SpecificationsINPUTS:DJ Mic.1.5mV 2Kohm balancedPhono.3mV 47KohmLine.150 mV 27KohmOUTPUTS:Amp/Booth.0 dB 1V 400ohm Max.20V Peak to PeakRec.225mV 5KohmMIC:DJ Mic.1.5mV 2Kohm balancedBass. 12dBHigh. 12dBGENERAL:Frequency Response.20Hz - 20KHz +/- 2dBDistortion.0.02%S/N Ratio.better than 80dBTalkover Attenuation.-16dBHeadphone Impedance.16ohmPower Source.115/230V 50/60Hz 10WDimensions.19”w x 4”h x 9”dWeight.10.17 lbs002-204021-993032-017021-762022-322022-305023-674002-531002-532002-703002-704003-102003-110148-236148-239003-970003-969003-564049-206159-167159-216159-171146-710102-007102-025110-172A111-043A111-044A111-046A111-049A111-050111-051A111-053A131-081PANEL CONTROLPANEL REARCOVER BOTTOMBRACKET VRHOLDER X-FADERPROTECTOR PLATE FOR 115/230V SWITCHSWING LEVELKNOB PUSH (SMALL)BUSHING FOR KNOB (SMALL)KNOB SLIDE (SMALL)KNOB SLIDE (BIG)KNOB ROTARY (ASSIGN)KNOB ROTARY (B)KNOB INLAY (BLACK); LEVEL,BALANCE,CUEKNOB INLAY (GRAY); TREBLE,BASSTRIM VRHOLDER LED 3f LED(17mm)WASHER XLRPAD FOOTDUST PROOF CLOTH (VR)DUST PROOF CLOTH (KNOB-SWING)DUST PROOF CLOTH (VR)GND SCREWPAN-HEAD MACHINE SCREW; PMS 2X4(B)PAN-HEAD MACHINE SCREW; PMS 2.6X4(B)BAND-HEAD TAPPING SCREW/TWIN SCREW; BTS-2 3X8(AB) TWINFLAT-HEAD TAPPING SCREW; FTS-3 3X6(AB)BAND-HEAD TAPPING SCREW; BTS-3 3X10(AB)BAND-HEAD TAPPING SCREW; BTS-3 3X6(AB)FLAT-HEAD TAPPING SCREW; FTS-3 3X12(AB)FLAT-HEAD TAPPING SCREW; FTS-3 3X12(Y)BAND-HEAD TAPPING SCREW; BTS-3 3X5(AB)BAND-HEAD TAPPING SCREW/TW-E; BTS-3/ TW-E 3X6(AB)NUT/WASHER 3mmDescriptionPart #Cabinet Parts and Packing124567891011121314151617181920212223242526272829303132333435Item #Parts Lists262-039262-040262-041262-042262-043PRINTED CIRCUIT BOARD PDM10-1: SWITCH (V0 12146)PRINTED CIRCUIT BOARD PDM10-2: MAINPRINTED CIRCUIT BOARD PDM10-3: MASTER VRPRINTED CIRCUIT BOARD PDM10-4: FADER (V0 73.513)PRINTED CIRCUIT BOARD PDM10-5: PHONES (V0 14.527)DescriptionPart #Printed Circuit BoardsItem #12345Page 6Parts Lists - PCB 1, 2, 4092-078161-117081-004082-019082-022082-028083-069072-035072-081071-135071-102PHONE JACK 6.3f2P RCA JACK P=14mmSLIDE SWITCH 2P2CLEVER SW 4P2CLEVER SW 4P3CROTARY SWITCH 1-2-5 L=17 FAD ASSIGNPUSH SWITCH 2P2C L=12.5SLIDE VR 45mm L=20 CH VOL MASTER 50KA2SLIDE VR 45mm L=20 FADER 100KB2ROTARY VR 16f L=20 MIC-TONE 20KA C.CROTARY VR 16f L=20 MIC VOL 250KAJ1J2-9SW2, 5, 8SW3, 7, 10, 12SW1SW4, 13SW6, 9, 11, 14VR4-7X-FADERVR1-2VR3DesignatorsDescriptionPart #Electrical PartsItem #1234567891011074-104074-145INTEGRATED CIRCUIT NJM4558LDINTEGRATED CIRCUIT NJM2068LDIC1IC2-6DesignatorsDescriptionPart #ICsItem #12Parts Lists - PCB 3, 5076-095076-104TRANSISTOR 2SC2878TRANSISTOR 2SA1048 (2SA1317)DesignatorsDescriptionPart #TransistorsItem #12079-027079-003080-104080-103080-091RECTIFIER DIODE 1N4002 (1N4003,1N4004)SILICON DIODE 1N4148LIGHT EMITTING DIODE (GREEN) 3.15fLIGHT EMITTING DIODE (YELLOW) 3.15fLIGHT EMITTING DIODE (RED) 3.15fD26-30D32-33D6-17,D18-D21D22-25, D31DesignatorsDescriptionPart #DiodesItem #12345092-078161-117072-035072-092071-104071-084PHONE JACK 6.3f2P RCA JACK P=14mmSLIDE VR 45mm L=20 CH VOL MASTER 50KA2SLIDE VR 30mm L=15 CUE FADER 20KB2ROTARY VR 16f L=20 CH-TONE 20KW2 CCROTARY VR 16f L=20 BOOTH CUE VOL 50KA2J13J10-12VR12VR10VR8-9VR11, 13DesignatorsDescriptionPart #Electrical PartsItem #123456074-104074-113074-145074-022074-107074-114INTEGRATED CIRCUIT NJM4558LDINTEGRATED CIRCUIT NJM4556LINTEGRATED CIRCUIT NJM2068LDINTEGRATED CIRCUIT LB1403NINTEGRATED CIRCUIT NJM7812FAINTEGRATED CIRCUIT NJM7912FAIC7, IC10, IC15IC14IC11IC8, 9, 12, 13IC17IC16DesignatorsDescriptionPart #ICsItem #123456Q1-4Q5080-091LIGHT EMITTING DIODE (RED) 3.15fD1-5DesignatorsDescriptionPart #DiodesItem #1+12-12IC3A2068LDIC3B2068LDR32100KR4747R4847R358K2R41180R3447KR368K2R4347KR46180R45100KC31822C2956C28273C3256C33273C30822C3647/16C3547/16C3747/16C3447/16R311KR441KR141K8R261K8C22101C25101C2610/16C1910/16C2710/16C2410/16+12-12IC4A2068LDIC4B2068LDR59100KR7147R7247R638K2R70180R6047KR628K2R6147KR68180R67100KC48822C4356C46273C4956C50273C47822C5247/16C5147/16C5347/16C4447/16R561KR641KR491K8R531K8C39101C41101C4210/16C3810/16C4510/16C4010/16+12-12IC5A2068LDIC5B2068LDR83100KR9447R9547R858K2R92180R8047KR868K2R8747KR91180R90100KC64822C5956C62273C6556C66273C63822C6847/16C6747/16C7047/16C6147/16R791KR841KR691K8R761K8C55101C56101C5810/16C5410/16C6010/16C5710/16R291K8R401K8R661K8R581K8R811K8R891K8R931K8R981K8C69101C71101C7210/16C7310/16R1011K8R1061K8C74101C83101C7510/16C7810/16LRGJ3J2J5J4J7J6J8J9VR5A50KAX2VR5B50KAX2R3724KR2324KR3324KR1924KC2310/16SW3ASW3CSW3DSW3BR2036KR424K7R2736KR2836KD2LED+12VR4A50KAX2VR4B50KAX2R2136KSW6ASW6BSW12ASW12BSW12CSW12DR5724KR5024KR3024KR2224KVR6A50KAX2C2010/16R5136KR654K7R5436KR5536KD3LED+12R5236KSW9ASW9BVR6B50KAX2VR7A50KAX2R3924KR2524KR8224KR7324KR7436KR884K7R7736KR7836KD4LED+12R7536KSW11ASW11BVR7B50KAX2R3824KR2424KR9624KR9724KR10036KR1054K7R10236KR10336KD5LED+12R9936KSW14ASW14BL1R1L2R2L3R3L4R4X4X6X7SW7ASW7CSW7DSW7BSW10ASW10CSW10DSW10BIC1A4558LDIC1B4558LDR1547R1647R730K1 1%C12101C15101C1647/16C647/16C1122/16C1422/16C522/16R81K 1%R101K 1%R1330K1 1%TRSJ1-12+12VR120KAVR220KAC4124C3684C2123C1124R24K7R1680R46K8VR3250KAC84.7PSW1CSW1DSW03*4R174K7D1LED+12-12SW13ASW-05WAY*2SW13BSW-05WAY*2SW4ASW-05WAY*2SW4BSW-05WAY*2L1L2L3L4R4R3R2R1L4L3L2L1R4R3R2R1R12100KR1810R910C2122C1022/16C722/16C922/16-12+12R618KR11100KC1822C1722/16R518KSW1BSW03*4SW1ASW03*4IC2A2068LDIC2B2068LDR10968KR10710R10410C8156C7622/16C7722/16-12+12C79100/16C84100/16C8056R10868KC82100/16C85100/16IC6A2068LDIC6B2068LDC1322/16SW2ASW2BX1SW5ASW5BX3SW8ASW8BX5 X-FADERLN1PH1/LN2LN3PH2/LN4LN5PH3/LN6LN7LN8MICMIC XLRX12-12+12X10X2+2G1-3XLR1XLRX14R350KR3A820Page 8PCB 1, 2, 4 - SchematicJ12J11R150100KR1429K1R151820C12010/16C10622/16C11122/16C11656R13210R13710+12-12VR12A50KAX2R11510KR1184K7R1144K7R1124K7R14510R14410C9856C96104C93104C91222VR9A20KWX2VR9B20KWX2IC7A4558LDC10922/16C11022/16+12-12C10810/16R12110KR1224K7R1164K7R1194K7C10356C95104C94104C92222A1A2A3VR8A20KWX2B1B2B3VR8B20KWX2IC7B4558LDC11210/16R1462KR1472KVR12B50KAX2R149100KR1419K1R148820C11910/16C11556VR13B50KAX2IC15A4558R184100KR1799K1R185820C14010/16C12722/16C12622/16C13256R16910R17010+12-12VR13A50KAX2IC15B4558R183100KR1789K1R182820C13910/16C13156R1432KR1352K192634785IC8LB1403N192634785IC13LB1403N192634785IC9LB1403N192634785IC12LB1403ND6LEDD8LEDD10LEDD12LEDD14LEDD16LEDD18LEDD20LEDD22LEDD24LEDD7LEDD9LEDD11LEDD13LEDD15LEDD17LEDD19LEDD21LEDD23LEDD25LEDR12510KR129100KR130120KR164160KR15510KR1618K2R12410KR128100KR131120KR139160KR15210KR1568K2C9710/16C884.7/16C11810/16C10110/16C904.7/16C12110/16R16810+12R17127R17227R17327R17427C8922/16R111300R120150R11747KLRGJ10C8610/16C8710/16R13610KR14010KR12651KR13810R13310IC10A4558C10456C10522/16C11722/16-12+12C10222/16R15351KR13451KIC10B4558C11356C10022/16R15451KVR10B20KBX2VR10A20KBX2VR11A50KAVR11B50KAIC14A4556IC14B4556R157100KR158100KR1662K7R17636KR1622K7C1234.7/16C1224.7/16C143470/16C144470/16C12856C12956R18810R18910+12-12C12422/16R17536KR18047R18147C136222C137222X8PLUG03C10710/16C11410/16Q22SC2878Q52SA1317D321N4148R193560KD331N4148C147220/16C1484,7/16+12R1921KC9922/16R113300R127150R12347KQ12SC2878R1103KC13822/16R186300R167150R16347KQ42SC2878C13522/16R177300R159150R16047KQ32SC2878R1903KMLMRMRMLIC11B2068LDIC11A2068LDC12522/16C142470/25C146470/25C145103C1491/16C1501/16-1212345X9D291N4002D271N4002D261N4002D281N4002C141103D301N4002IC167812IC177912C133470/16+MET+12D31LEDR1914K7+METR16510C134470/25C130470/25R1871M-12X13-12+12X11X15SOCKET03TRSJ13Page 9PCB 3, 5 - Schematic