Phonic MX300 DJ Mixer Service Manual
Introduction
This document provides detailed service information for the Phonic MX300 DJ Mixer. It includes technical specifications, schematics, part lists, and layout diagrams to assist in maintenance and repair.
Contents
- Panel Layout
- System Block Diagram
- PCB Schematics (Master, Output, Power)
- Schematics (Channel Beat, Tone, Crossfader, Cue Output, Cue Display, L_R Display, Mic Input, Mix, Rec/Bth/Mast, Power Supply, Channel Inputs/Outputs)
- Part Lists (Main PCB, Input PCB, Power PCB)
- Miscellaneous Items
- Power Requirement Classification
- IC List
- Dimensions
- Exploded View
Panel Layout
The front panel of the Phonic MX300 features controls for MIC input, TALKOVER, GAIN, TREBLE, MIDDLE, BASS for each channel, CROSSFADER, CUE LEVEL, MASTER LEVEL, and BOOTH/MASTER outputs. It also includes headphone jacks and various switches and LEDs for operation and monitoring.
System Block Diagram
The system block diagram illustrates the overall signal flow from input sources (MIC, PHONO, LINE) through various processing stages, including RIAA amplifiers, tone controls, crossfader, cue mixing, and output stages (MASTER, BOOTH, REC). It shows the interaction between different PCBs and functional modules.
PCB Layouts
Master PCB
This section details the component layout for the Master PCB, which handles primary audio processing and master output control.
Output PCB
This section details the component layout for the Output PCB, responsible for managing the final audio outputs.
Power PCB
This section details the component layout for the Power PCB, which supplies the necessary voltages to the unit.
Schematics
The following schematics provide detailed circuit diagrams for various functional blocks of the Phonic MX300:
- CH 1~2 Beat Schematic: Details the circuitry related to beat detection and synchronization for channels 1 and 2.
- CH_1 Tone Schematic: Outlines the audio signal path and tone control (Bass, Middle, Treble) for Channel 1.
- CH_2 Tone Schematic: Outlines the audio signal path and tone control (Bass, Middle, Treble) for Channel 2.
- CH_3 Tone Schematic: Outlines the audio signal path and tone control (Bass, Middle, Treble) for Channel 3.
- Crossfader Schematic: Illustrates the circuit for the crossfader, which blends audio between channels.
- Cue Output Schematic: Details the circuitry for the cue output, allowing pre-listening to channels.
- Cue Display Schematic: Shows the circuit for the cue level indicators.
- L_R Display Schematic: Details the circuitry for the Left/Right level meters.
- Mic Input Schematic: Outlines the pre-amplification and input circuitry for microphone signals.
- Mix Schematic: Illustrates the audio mixing stages where signals from different channels are combined.
- Rec/Bth/Mast Schematic: Details the circuitry for recording outputs, booth outputs, and master outputs.
- Power Supply Schematic: Provides the circuit diagram for the power supply unit, showing voltage regulation and distribution.
- CH_1_2 Input Schematic: Details the input circuitry for Channels 1 and 2, including PHONO/LINE selection.
- CH_3 Input & Output Schematic: Details the input and output circuitry for Channel 3.
Part Lists
Detailed lists of components used on various PCBs are provided below:
Main PCB-Part List
| Ref. | Phonic No. | Specification |
|---|
| R134A.B.724.725 | 000-10236-400-0 | CF RES 1K J 0.5W T |
| R710 | 000-10406-400-0 | CF RES. 100K J 1/8W T |
| R712 | 000-18206-400-0 | CF RES. 1K8 J 1/8W T |
| R194.394.594 | 000-22406-400-0 | CF RES. 220K J 1/8W T |
| R708 | 000-75206-400-0 | CF RES. 7K5 J 1/8W T |
| R711 | 000-91106-400-0 | CF RES 910 J 1/8 W T |
| VR101.301.501 | 023-10330-023-6 | D.ROT/VR 10KB 20MMP |
| VR102.103.104.302.303.304.5 | 023-50330-062-6 | D.ROT/VR 50KB 20MMP C.C |
| 02.503.504.703 | | |
| VR702.704.705 | 023-50330-072-6 | D.ROT/VR 50KA 20MMP |
| VR701 | 027-50324-000-6 | D.SLD/VR 50KB 30mm P |
| VR105.305.505 | 027-50335-000-6 | D.SLD/VR 15A50K*2 45mm P |
| C710 | 035-47556-0A0-0 | MINI E/C 4.7MF M 50V T |
| C129.329 | 040-22426-100-0 | ML/C 0.22MF M 50V P5 T |
| C712 | 042-39024-050-0 | C/C2 39PF J 50V 5 T |
| C 709 | 042-47025-050-0 | C/C2 47PF K 50V 5 T |
| D101.102.301.302 | 090-02000-020-0 | DIODE 1N4148 T |
| LED101.201.301.501.701.901 | 100-00010-030-1 | LED SE 3011 RED 3MM (HIGH LIGHT) |
| LED102.302 | 100-00050-110-0 | LED EL204GT GREEN 3D HIGH LIGHT |
| LED902 | 100-00070-040-6 | LED BLUE D3 BODY WHITE |
| LED1-12.LED-801-12.LED701-12 | 100-01112-010-0 | LED BAR LA10B/3H+2Y+7G |
| IC2 | 160-00014-600-0 | IC AN6884 PANA SONIC |
| IC105.305.703.701.801.704.503.102.104.302.304.702.504.502.106.306.506.2A | 160-00017-900-0 | IC NJM4558LD JRC |
| IC705 | 160-00018-000-0 | IC NJM4556AL JRC |
| IC3 | 160-00018-100-0 | IC BA6125 |
| IC706 | 160-00018-200-0 | IC BA6822S |
| SW103.303.503.901 | 210-02201-220-0 | PSH/SW SPEC12HC01-PJ |
| SW701.702 | 210-02401-000-6 | PUSH/SW PS-9C2-042-18A |
| SW102.302.502 | 210-04203-020-6 | LEVEL/SW TS-23EOI-CB18(T) |
| JK8 | 211-01602-440-0 | 6D3 PHONE JACK RHJ-23-S DM3010 |
| 211-03300-160-6 | XLR/J SKCA229-1K3F2 |
Input PCB Part List
| Ref. | Phonic No. | Specification |
|---|
| IC101.301.501 | 042-33025-050-0 | C/C2 33PF K 50V 5 T |
| J102.103.104. | 211-00041-060-0 | RCA/JACK RJ-1018-010-0 (WHITE/RED) |
| J105 | 211-00061-010-0 | 6P RCA/J RJ-1074-09-0300A (WHITE/RED) |
| J101.301 | 211-01602-440-0 | 6D3 PHONE JACK RHJ-23-S DM3010 |
| CN10 | 211-10021-161-0 | 2P WAFER/S TJC3-2A P=2.5MM 180 DEGREE |
| CN2.3 | 211-10031-171-0 | 3P WAFER/S TJC3-3A PH=2.5MM 180 DEGREE |
| CN9 | 211-10051-151-0 | 5P WAFER/S TJC3-5A PH=2.5MM 180 DEGREE |
| CN5-8 | 211-10061-180-0 | 6P WAFER/S A2501WV2-6P 180 DEGREE |
| R306.406.506.606.116.216 | 000-10106-400-0 | CF RES. 100 J 1/8W T |
| R106.206. | 000-10126-400-0 | CF RES. 100 J 0.25W T |
| R101.201.301.401.501.601.734.834 | 000-10206-400-0 | CF RES. 1K J 1/8W T |
| R105.205.305.405.505.605 | 000-10406-400-0 | CF RES. 100K J 1/8W T |
| R114.314 | 000-15206-400-0 | CF RES. 1K5 J 1/8W T |
| R726.826.730.830.728.828.732.832 | 000-22106-400-0 | CF RES. 220 J 1/8W T |
| R107.207.307.407.507.607.113.313 | 000-22206-400-0 | CF RES. 2K2 J 1/8W T |
| R117.317 | 000-22406-400-0 | CF RES. 220K J 1/8W T |
| R203.303.403.603 | 000-24106-400-0 | CF RES 240 J 1/8W T |
| R103.503 | 000-24126-400-0 | CF RES. 240 J 0.25W T |
| R108.208.308.408.508.608 | 000-39206-400-0 | CF RES 3K9 J 1/8W T |
| R831.836.731.827.727 | 000-47206-400-0 | CF RES 4.7K J 1/8W T |
| R102.202.302.402.502.602.733.833.729.829 | 000-47306-400-0 | CF RES. 47K J 1/8W T |
| R 835.735 | 000-51206-400-0 | CF RES. 5K1 J 1/8W T |
| R115.315 | 000-56306-400-0 | CF RES.56K J 1/8W T |
| R908 | 000-68006-400-0 | CF RES. 68 J 1/8W T |
| R903 | 000-68406-400-0 | CF RES. 680K J 1/8W T |
| R 104.204.504.604.304.404 | 000-82206-400-0 | CF RES. 8K2 J 1/8W T |
Power PCB Part List
| Ref. | Phonic No. | Specification |
|---|
| IC901 | 160-00001-219-1 | IC LM7812 |
| IC902 | 160-00001-331-0 | IC LM7912 |
| IC1 | 160-00004-114-0 | IC UPC7805H NEC (KIA) |
| P10 | 212-10021-050-6 | 2P WAFER/P 160MM UL1007#24 P=2.5MM |
| 382-20007-510-0 | TINNER WIRE 7.5MM D0.6 |
| 382-20010-010-0 | TINNER WIRE 10MM D0.6 |
| 382-20015-010-0 | TINNER WIRE 15MM D0.6 |
| IC7805*1.IC7812*1.IC7912*1 | 526-20001-110-0 | HEAT SINK BLK 19*13*12 L=19MM |
| IC7805*1.7812*1.712*1 | 590-53008-200-0 | M/E SET SCR. M3.0*8 D=6 BLK |
| IC7805*1.IC7812*1.IC7912*1 | 600-00302-210-0 | HEX. NUT M3.0*2.2 NI |
| IC7805*1.7812*1.712*1 | 610-60300-501-0 | PAN SPR. WAS D3.0*D7*0.5 NI |
| R1 | 003-20073-602-0 | CEMENT RES. 20 J 5W SQM |
| C906.907 | 030-10848-002-0 | E/C 1000MF Z 35V 18*20 P |
| C904.C905 | 030-47558-0A0-0 | E/C 4.7MF Z 50V 5*11 T |
| C3 | 030-47628-0A0-0 | E/C 47MF Z 16V 5*11 T |
| C1.C2 | 030-47638-0A0-0 | E/C 47MF Z 25V 6.3*11 T |
| C910.C911 | 042-10346-050-0 | C/C2 0.01MF M 100V T 5 |
| D905.906.907.908 | 090-00007-020-0 | DIODE IN4004 SILTEK T |
| CN14 CN17 | 211-10021-161-0 | 2P WAFER/S TJC3-2A P=2.5MM 180 DEGREE |
| 211-10061-180-0 | 6P WAFER/S A2501WV2-6P 180 DEGREE |
| 290-30250-400-0 | PCB DM3025 POWER-D+E1-E6 |
Miscellaneous Items
Various other components and accessories are listed below:
| Ref. | Phonic No. | Specification |
|---|
| POWER SW | 058-47236-001-0 | LINE/C 0.0047MF M 400V |
| POWER SELECT SW | 070-20318-001-0 | X'MER 120/230V TT048970116C |
| POWER SW | 210-01102-030-0 | SLD/SW EV-12-31B-6Y |
| 210-02101-010-0 | P/SW KDC-A04-10BA2-G |
| FOR AC SOCKET | 211-04000-010-0 | BNC/J SVP-516D |
| FOR PHONO RCA JACK | 211-12200-000-6 | AC/S SC-12-2 |
| BNC TO CN17 | 212-00000-000-6 | RCA PLUG 1P |
| FOR GND | 212-10022-700-0 | 2P WAFER/P 150MM |
| 281-04000-000-0 | FUSE HOLDER FH-B02 EDK |
| 313-00030-000-6 | WASHER TW-10N |
| 315-00005-000-0 | LUG 6D |
| AC SOCKET TO SELECT SW | 321-00000-070-0 | CABLE TIE HW-100MM |
| AC SOCKET TO POWER SW TO FUSE HOLDER | 379-02151-101-0 | M.WIRE UL1007 #24 150MM BLK |
| 379-10101-101-0 | M.WIRE UL1015 #18 100MM BLK |
| 379-29101-121-0 | M.WIRE UL1617#18 100MM RED |
| 510-60310-511-0 | PANEL MX300 AL 2.0 PRINT COLOR:BLK |
| 511-60010-400-0 | BACK PANEL MX300 BLK+WHT |
| 512-60015-510-0 | CROSSFADER PANEL AL PRINT COLOR:BLK |
| 517-60710-100-0 | BOT. COV MX303 HANDLE SIZE:10*50 COLOR:WHT |
| 524-60009-020-0 | FEET SIZE:D20*D15*H10.5 NF-008 |
| 525-60011-000-0 | LENS 104*42*3 BLK GROUND+WHT TEXT |
| 529-60005-001-0 | R/KNOB BLK BODY+BLK CAP+WHITE POINT |
| CHANNEL FADER*3 CROSS FADER*1 | 540-60090-020-0 | S/KNOB 20*10*13H BLK BODY+WHT LINE |
| CUE-PGM VR | 541-20080-120-0 | S/KNOB 8*10*5 |
| 541-20160-120-0 | |
| FOR PHONO/LINE/MIC SW | 631-10034-000-0 | HEMELON D5*D26 |
| FOR CUE VR | 631-10036-000-0 | HEMELON 10*55 |
| FOR 12V LAMP | 631-20029-000-0 | HEMELON 10*10 |
| 631-20030-000-0 | HEMELON D10*D26 |
| 510-60310-511-F | PANEL MX300 AL |
| 511-60010-000-F | BACK PANEL PM/FX/SX524 MX300/303 |
| 512-60015-510-F | CROSSFADER PANEL MX SERIES |
| 517-60710-000-F | BOT COV PM/SX/FX/BX524 MX300/303 |
| FOR XLR/JK*2 | 590-02606-200-0 | M/E FLT SCR 2.6*6 BLK |
| PANEL TO CHASSIS*6 | 590-03006-100-0 | M/E FLT SCR. M3.0*6 NI |
| FOR CROSS FADER TO VR*2 | 590-03012-100-0 | M/E FLT SCR. M3*12 NI |
| POWER SW*2 CUE SW*2 CH1/CH2 SW*2 CUE VR*1 | 590-42604-100-0 | M/E PAN SCR. M2.6*4 NI |
| 590-43004-200-0 | M/E PAN SCR. M3.0*4 BLK |
| CHANNEL VR*3 | 590-43006-100-0 | M/E PAN SCR. M3.0*6 NI |
| PCB*10 CHASSIS TO BOSS*10 | 590-53004-100-0 | M/E SET SCR. M3.0*4 NI |
| FIXED POWER SW BRKT | 590-53006-200-0 | M/E SET SCR. M3.0*6 BLK |
| POWER SELECT SWITCH*2 | 590-54012-200-0 | M/E SET SCR. M4*12 BLK |
| FOR X'MER*2 | 591-03006-200-0 | T/P FLT SCR. M3.0*6 BLK |
| BOT COV*6 | 591-53006-200-0 | T/P SET SCR. M3.0*6 BLK |
| BOT COV*4.BACK PANEL TO CHASSIS*2 | 591-53010-200-0 | T/P SET SCR. M3.0*10 BLK |
| FOR RCA JACK*5 | 593-20010-001-0 | TAPP SCR. M3.0*8 BLK |
| FEET*4 | 600-00602-010-0 | HEX. NUT M6.0*2.0 NI |
| FOR GND | 600-00902-210-6 | HEX NUT M9.0*2.0 |
| FOR ROTARY VR | 600-00903-210-0 | HEX. NUT CU M4*2T |
| X'MER | 610-00300-516-0 | FIBER WAS. D3*D8*0.5 RED |
| FOR XMER*2 | 610-60401-001-0 | PAN SPR. WAS. D4*7.6*1.0 NI |
| FOR GND | 615-10001-130-0 | EARTH BOSS 2+5 NI |
| GND | 615-10002-130-0 | EARTH BOSS 10+5 NI |
| FOR CUE SWITCH*2 FOR CH1/CH2 SW*2 | 615-10022-630-0 | (EARTH BOSS) BOSS 5+5 |
| CONNECT WITH PCB AND CHASSIS | 615-10064-620-0 | HEX BOSS L=12 (M3) H-12 |
| FOR POWER BOARD | 615-20064-620-0 | BOSS LCA35-10 L=10MM |
| FOR AC SELECT SWITCH | 630-20033-410-0 | MYLAR INSV 12*45*1MM |
| FOR MASTER PCB | 630-60012-210-0 | FIBER SHEET SIZE:55*45*0.8MM |
| FOR CHANNEL VR*3 | 630-60035-410-0 | INSULAT ION 68.5*23*3 T |
| CROSSFADER*1 | 630-60036-410-0 | MYLAR INSU 40*9*0.2MM |
| 631-10025-000-0 | HEMELON 20*70 |
Power Requirement Classification
Details on power requirements, including fuse types and cord specifications for different regions:
| Ref. | Phonic No. | Specification |
|---|
| BS | 280-50165-000-0 | FUSE T500MA 250V SMK S P/CORD 230V 3A 6F 2P BS SVT PM-524 |
| 370-03310-421-6 | |
| IEC | 280-5016D-300-0 | FUSE 0.5A 250V CE F P/CORD VDE 3A 6F.SVT |
| 370-03310-321-6 | |
| UL | 280-5016D-300-0 | FUSE 0.5A 250V CE F P/CORD 120V 3A 6F 2P UL SVT PM-524 |
| 370-03310-121-6 | |
| SA | 280-5016D-300-0 | FUSE 0.5A 250V CE F P/CORD 240V 3A 6F 2P SVT(SA) |
| 370-03310-021-6 | |
| SAA | 280-50165-000-0 | FUSE T500MA 250V SMK S P/CORD 240V 3A 6F 2P SAA SVT PM524 |
| 370-03310-821-0 | |
IC List
A list of integrated circuits used in the Phonic MX300:
| Ref. | Phonic | Specifications | Supplier |
|---|
| IC901 | 160-00001-219-1 | IC LM7812 | http://www.njr.com |
| IC902 | 160-00001-331-0 | IC LM7912 | http://www.njr.com |
| IC1 | 160-00004-114-0 | IC UPC7805H NEC (KIA) | http://www.onsemi.com/home/ |
| IC101.301.501 | 042-33025-050-0 | C/C2 33PF K 50V 5 T | http://www.njr.com |
| IC103.101.301.501 | 160-00017-900-0 | IC NJM4558LD JRC | http://www.njr.com |
| IC2 | 160-00014-600-0 | IC AN6884 PANA SONIC | http://www.onsemi.com/home/ |
| IC105.305.703.701.801.704.503.102.104.302.304.702.504.502.106.306.506.2A | 160-00017-900-0 | IC NJM4558LD JRC | http://www.njr.com |
| IC705 | 160-00018-000-0 | IC NJM4556AL JRC | http://www.njr.com |
| IC3 | 160-00018-100-0 | IC BA6125 | http://www.fairchildsemi.com |
| IC706 | 160-00018-200-0 | IC BA6822S | http://www.njr.com |
Dimensions
The dimensions of the Phonic MX300 DJ Mixer are provided in millimeters and inches. Width: 320.00 mm (12.6080 inches), Height: 90.00 mm (3.5460 inches), Depth: 254.00 mm (10.0076 inches). Further detailed measurements for panel cutouts and component placement are indicated in diagrams.
Exploded View
The exploded view diagram shows the assembly of the Phonic MX300, illustrating the relationship between various parts. Key components include PCBs, knobs, chassis parts, and connectors, each identified by a part number and quantity.
