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MN-12/04
Service Manual
Model
MN-12 MN-04
Mini Mixer
1
MN-12/04
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
ATTENTION:
POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU' AU FOND.
The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
"WARNING"
"TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE."
SAFETY INSTRUCTIONS
1. 2. 3. 4. 5. Read instructions - All the safety and operating instructions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufacturer. 9. Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. Damage requiring Service - The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked changed in performance; or E. The appliance has been dropped, or the enclosure damaged. Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.
10.
11.
12.
6.
13. 14.
15.
7.
8.
An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation - The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
16.
17.
2
MN-12/04
TABLE OF CONTENTS
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. CONTROLS, INDICATORS AND CONNECTORS . . . . . . . . . . . . 6 3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST . . . . . . 8 4. CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . 15
NOTES * Parts List and circuit diagrams are given in this manual to assist the service technician in maintaining the Model MN-12/04. * The following accessories are supplied with MN-12/04 as the standard accessories. MN-12 Owner's manual : 8288399000 (for export model) : 8288400000 (for JPN) AC adaptor AD-12A : 8270727003 (for USA/CND) : 8270727006 (for EUR) : 8270727007 (for UK) : 8270727010 (for JPN) MN-04 Owner's manual : 8288397000 (for export model) : 8288398000 (for JPN) AC adaptor AD-9A : 8270728003 (for USA/CND) : 8270728006 (for EUR) : 8270728007 (for UK) : 8270728010 (for JPN) * Following is the packing material for the Model MN-12/04. MN-12 PACKING, TOP, MN12 : 8228402000 PACKING, BOTTOM, MN12 : 8228403000 INNER, CARTON, MN12 : 8228725000 MN-04 PACKING, TOP, MN-04 : 8288724000 PACKING, BOTTOM, MN-04 : 8228404000 CARTON, BOX, MN-04 : 8288724000 CAUTION Parts marked with this sign are safety critical components. They must always be replaced with identical components. Refer to the Fostex Parts List and ensure exact replacement.
3
MN-12/04
1. SPECIFICATIONS MN-12
DEFINITION ( Specification Unit : 0 dBV = 1 Vrms)
Normal Fader Position Master fader Condition Input fader Condition At 7~8 position AUX RTN : -20 dBV / 1 kHz, AUX RTN VR : Max Adjust Master fader for -10 dBV at STEREO OUT. At 7~8 position INPUT: -10 dBV / 1 kHz, PAN : L(R), TRIM : LINE, EQ GAIN : 0 Adjust Input fader for -10 dBV at STEREO OUT.
INPUT SECTION
INPUT 1~4 Input level Impedance EQ HI EQ LOW INPUT 5-6, 7-8, 9-10, 11-12 Input level Impedance AUX RTN Input level Impedance -60dBV (MIC) ~ -10dBV (LINE) 20 k or more ± 13dB ± 3dB ( -10dBV / 10 kHz ) ± 13dB ± 3dB ( -10dBV / 100 Hz ) -10dBV 8 k or more -10dBV 8 k or more
OUTPUT SECTION
STEREO OUT Level Load Impedance Frequency Response -10dBV 1k 20 ~ 20kHz ± 1.5dB ( INPUT 1~4 : -60dBV) 20 ~ 20kHz ±1dB ( INPUT 1~8 : -10dBV) S/N 80 dB or more ( DIN AUDIO,INPUT 1~4 : -10dBV) 81 dB or more ( IHF-A, INPUT 1~4 : -10dBV) 63 dB or more ( DIN AUDIO, INPUT 1~8 : -60dBV) 64 dB or more ( IHF-A, INPUT 1~8 : -60dBV) Distortion 0.01 % or less ( INPUT 1~8 : 1kHz / 0dBV , OUTPUT : 0dBV ) 0.05 % or less ( INPUT 1~4 : 1kHz/-50dBV , OUTPUT : 0dBV ) Crosstalk 60dB or more at 1kHz Click Noise (Power on / off) -20 dBVp-p or less (OUTPUT VR : MIN) Peak LED Indication 0 dBV ± 3dB AUX SEND Level -10dBV Load Impedance 1k Frequency Response 20 ~ 20kHz +1dB ( INPUT : -10dBV) S/N 86 dB or more ( DIN AUDIO,INPUT : -10dBV) 88 dB or more ( IHF-A, INPUT : -10dBV) Distortion 0.01 % or less ( INPUT : 1kHz / 0dBV , OUTPUT : 0dBV ) Crosstalk 60dB or more at 1kHz Click Noise (Power on / off) -20 dBVp-p or less (OUTPUT VR : MIN) PHONES Connector Stereo phone Level 40mW or more (Normal fader position) Load Impedance 32 Frequency Response 20 ~ 20 kHz ± 1.5dB ( 32 load, INPUT : -10dBV, OUTPUT : 40mW ) 20 ~ 20 kHz ± 3dB ( 32 load, INPUT : -10dBV, OUTPUT : 40mW ) Distortion 0.2 % or less ( 32 load, 1kHz, OUTPUT : 40mW )
GENERAL
Dimensions Weight Power supply USA/CND EUR/UK JPN 4 356 (W) × 198 (D) × 45 (H) mm 1.3 kg 120VAC, 60Hz 230VAC, 50/60Hz 100VAC, 50/60Hz
MN-12/04
MN-04
DEFINITION ( Specification Unit : 0 dBV = 1 Vrms )
Normal Fader Position Master fader Condition At 7~8 position INPUT 4 : -10 dBV / 1 kHz, PAN 4 : L(R) First, set MASTER fader at max. and adjust INPUT 4 fader for -4dBV at STEREO OUT L(R). Then, adjust MASTER fader for -10dBV at STEREO OUT L (R). At 7~8 position INPUT: -10 dBV / 1 kHz, PAN : L(R), TRIM : LINE Adjust Input fader for -10 dBV at STEREO OUT.
Input fader Condition
INPUT SECTION
INPUT 1 Input level Impedance INPUT 2~4 Input level Impedance -60dBV(MIC) / -50~-20dBV(ALC ON) / -10dBV(LINE) 20 k or more -10dBV 8 k or more
OUTPUT SECTION
STEREO OUT Level Load Impedance Frequency Response -10dBV 1k 20 ~ 20kHz ± 1.5dB (INPUT : -60dBV) 20 ~ 20kHz +1dB (INPUT : -10dBV) S/N 82 dB or more (DIN AUDIO,INPUT : -10dBV) 84 dB or more ( IHF-A, ,INPUT : -10dBV) 56 dB or more (DIN AUDIO,INPUT : -60dBV) 58 dB or more ( IHF-A, ,INPUT : -60dBV) Distortion 0.25 % or less ( INPUT : 1kHz/-50dBV/MIC , OUTPUT : 0dBV ) 3.0 % or less ( INPUT : 1kHz/-40dBV/ALC , OUTPUT : 0dBV ) 0.05 % or less ( INPUT : 1kHz/-10dBV/LINE , OUTPUT : 0dBV ) Crosstalk 55dB or more at 1kHz Click Noise (Power on / off) -20 dBVp-p or less (OUTPUT VR : MIN) Peak LED Indication 0 dBV ± 3dB PHONES Level 1mW or more (Normal fader position) Load Impedance 32 Frequency Response 80 ~ 20 kHz +1-3dB ( 32 load, INPUT : -60dBV ) 80 ~ 20 kHz +1-3dB ( 32 load, INPUT : -10dBV ) Distortion 0.2 % or less ( 32 load, 1kHz, 200 mW ) Dimensions Weight Power supply USA/CND EUR/UK JPN 193 (W) × 130 (D) × 45 (H) mm 0.5 kg 120VAC, 60Hz 230VAC, 50/60Hz 100VAC, 50/60Hz
GENERAL
* Specifications and appearance are subject to change without notice for product improvement. 5
MN-12/04
2. CONTROLS, INDICATORS & CONNECTORS
< MN-12 >
1
2
3
4
5
11
+ POWER DC IN 12V STAND BY ON
12
L/MONO R AUX RTN AUX SEND L R STEREO OUT
13
6 7 8 9 10
EQ HI
0
EQ HI
0
EQ HI
0
EQ HI
0 + 6
EQ LO 0
+ EQ LO
3 0 + EQ LO 0 + EQ LO 0 L + 0 5 10 R
AUX 5
+ AUX
5
+ AUX
5
+ AUX
5
+ AUX 5 AUX 5 AUX 5 AUX 5 AUX RTN 5
14 15
0 PAN
10 PAN
0
10 PAN
0
10 PAN
0
10 PAN/ BAL
0
10 PAN/ BAL
0
10 PAN/ BAL
0
10 PAN/ BAL
0
10 PHONES
0 5
10
L TRIM
R TRIM
L
R TRIM
L
R TRIM
L
R
L
R
L
R
L
R
L
R
0
10
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
MN12
PEAK 10
PEAK 10
PEAK 10
PEAK 10 10 10 10 10 10 10 10 10 10
5
5
5
5
5
5
5
5
5
5
5
5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
4
5/MONO
6
7/MONO
8
9/MONO
10
11/MONO 12
MASTER
16
17
18
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. DC IN jack [DC IN] Power switch [STANDBY] Aux return jacks [AUX RTN] Aux send jack [AUX SEND] Stereo out jacks [STEREO OUT] High equalizer knobs 1~4 [EQ HI] Low equalizer knobs 1~4 [EQ LO] Aux level knob 1~8 [AUX] Panpot Knobs 1~4 [PAN] Input trim knobs 1~4 [TRIM] 11. 12. 13. 14. 15. 16. 17. 18. 19.
19
Power LED [POWER] Panpot / Balance knobs 5~8 [PAN/BAL] LED level meter Aux return knob [AUX RTN] Phones knob [PHONES] Input fader 1~12 [1~12] Master fader [MASTER] Input jacks 1~12 Headphone jack
6
MN-12/04
< MN-04 >
1
2
3
4
5
+ STANDBY ON DC IN 9V MIC LINE MIC ALC ON
6
L R STEREO OUT
MN04
PAN PAN PAN PAN
R
L
R
L
R
L
R
L
PEAK
7
10
10
10
10
10
8
5
5
5
5
5
0
0
0
0
0
1
2
3
4
MASTER
9
11
10 12
1. 2. 3. 4. 5. 6.
Battery compartment DC IN jack [DC IN] Power switch [STANDBY] Stereo out jacks [STEREO OUT] Level selector switch Power LED
7. 8. 9. 10. 11. 12.
Panpot knob 1~4 [PAN] Peak LED [PEAK] Input fader 1~4 [1~4] Master fader [MASTER] Input jacks 1~4 Headphone jack
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MN-12/04
3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST
MN-12 OVERALL EXPLODED VIEW & PARTS LIST
No. PartsNo. Description 1 2 3 4 8212600000 PANEL, FRONT, MN-12 8216598000 SHIELD, PLATE, MN12 8274180000 PCB Assy, METER, MN-12 8270727003 ADAPTOR, AD-12A, USA/CND 8270727006 ADAPTOR, AD-12A, EUR 8270727007 ADAPTOR, AD-12A, UK 8270727010 ADAPTOR, AD-12A, JPN 5 6 7 8 9 8274179000 PCB Assy, MAIN, MN-12 8226198004 ROTARY, KNOB, (D), GRY 8226198003 ROTARY, KNOB(C), GRN 8226198002 ROTARY, KNOB(B), YEL 8226198001 ROTARY, KNOB(A), RED
10 8226159001 KNOB, FADER, WHT 11 8226159002 KNOB, FADER, RED 12 8221269000 PLATE, BOTTOM, MN12 13 8207010700 RUBBER, FOOT
8
MN-12/04
MN-04 OVERALL EXPLODED VIEW & PARTS LIST
No. PartsNo. Description 1 2 3 4 5 8221262000 KNOB, SW, WHT 8212599000 PANEL, FRONT, MN-04 8274182000 PCB Assy, SELECTOR, MN-04 8216599000 SHIELD, PLATE, MN-04 8270728003 ADAPTOR, AD-9A, USA/CND 8270728006 ADAPTOR, AD-9A, EUR 8270728007 ADAPTOR, AD-9A, UK 8270728010 ADAPTOR, AD-9A, JPN 6 7 8 9 8226198002 ROTARY, KNOB(B), Y 8226159001 KNOB, FADER, WHT 8274181000 PCB Assy, MAIN, MN-04 8226159002 KNOB, FADER, RED
10 8216513000 SPONG, MN06 11 8212115001 BATTERY, COVER, MN06 12 8221268000 PLATE, BOTTOM, MN-04 13 8207010700 RUBBER, FOOT
9
MN-12/04
MN-12 PartsList
· MAIN / SELECTOR PCBs
ICs Ref.No. PartNo. Description U101~701 8236037200 IC, ANALOG, µPC4570H U102, 302 8236037200 IC, ANALOG, µPC4570H U151~351 8236037200 IC, ANALOG, µPC4570H U451 U551 U602 8236041300 IC, ANALOG, NJM4556L 8236038900 IC, DIP, LEDDRIVER, IR2E27A 8236032005 IC, REGULATOR, NJM78M12FA Ref. No. Part No. Description R114~414 8230138203 HT, CARBON, 1/4W, 20K, 5% R115~415 8230138103 HT, CARBON, 1/4W, 10K, 5% R116~416 8230138242 HT, CARBON, 1/4W, 2.4K, 5% R117~417 8230138223 HT, CARBON, 1/4W, 22K, 5% R118~418 8230138223 HT, CARBON, 1/4W, 22K, 5% R119~419 8230138474 HT, CARBON, 1/4W, 470K, 5% R120~420 8230138102 HT, CARBON, 1/4W, 1K, 5% R121~421 8230138101 HT, CARBON, 1/4W, 100, 5% R122~422 8230138104 HT, CARBON, 1/4W, 100K, 5% R123~423 8230138273 HT, CARBON, 1/4W, 27K, 5% R124~424 8230138563 HT, CARBON, 1/4W, 56K, 5% R151, 251 8230138683 HT, CARBON, 1/4W, 68K, 5% R152, 252 8230138273 HT, CARBON, 1/4W, 27K, 5% R153, 253 8230138563 HT, CARBON, 1/4W, 56K, 5% R154, 254 8230138102 HT, CARBON, 1/4W, 1K, 5% R155, 255 8230138303 HT, CARBON, 1/4W, 30K, 5% R156, 256 8230138332 HT, CARBON, 1/4W, 3.3K, 5% Ref.No. PartNo. DIODEs Description R351 R352 R353 R354 R355 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138223 HT, CARBON, 1/4W, 22K, 5% 8230138102 HT, CARBON, 1/4W, 1K, 5%
TRANSISTORs Ref.No. PartNo. Description Q101~401 8236408900 TR, 2SD1858, QR, T Q102~402 8234108800 TR, 2SB1237, PQR, T Q151, 251 8236408900 TR, 2SD1858, QR, T Q351 Q651 8236408900 TR, 2SD1858, QR, T 8234108800 TR, 2SB1237, PQR, T
D101~401 8234104000 OPT, V, LED, RED, RJ3-2034ADS D551, 561 8234109301 OPT, LED, SEL1124R D552, 562 8234109301 OPT, LED, SEL1124R D553, 563 8234109302 OPT, LED, SEL1324G D554, 564 8234109302 OPT, LED, SEL1324G D555, 565 8234109302 OPT, LED, SEL1324G D652 8234017601 DIODE, 1SS133 D653 D654 D655 8234103900 OPT, V, LED, GRN, RT3-5034YGS 8234017601 DIODE, 1SS133 8234000700 DIODE, 1N4002
R356 8230138332 HT, CARBON, 1/4W, 3.3K, 5% R451, 452 8230138332 HT, CARBON, 1/4W, 3.3K, 5% R453, 454 8230138273 HT, CARBON, 1/4W, 27K, 5% R455, 456 8230138332 HT, CARBON, 1/4W, 3.3K, 5% R457, 458 8230138103 HT, CARBON, 1/4W, 10K, 5% R459, 460 8230138220 HT, CARBON, 1/4W, 22, 5% R501~801 8230138103 HT, CARBON, 1/4W, 10K, 5% R502~802 8230138203 HT, CARBON, 1/4W, 20K, 5% R503~803 8230138103 HT, CARBON, 1/4W, 10K, 5% R504~804 8230138203 HT, CARBON, 1/4W, 20K, 5% R505~805 8230138473 HT, CARBON, 1/4W, 47K, 5% R506~806 8230138473 HT, CARBON, 1/4W, 47K, 5% R507~807 8230138473 HT, CARBON, 1/4W, 47K, 5% R508~808 8230138473 HT, CARBON, 1/4W, 47K, 5% R509~809 8230138203 HT, CARBON, 1/4W, 20K, 5% R551, 552 8230138153 HT, CARBON, 1/4W, 15K, 5% R553 R651 8230138470 HT, CARBON, 1/4W, 47, 5% 8230138332 HT, CARBON, 1/4W, 3.3K, 5%
RESISTORs Ref. No. Part No. Description R101~401 8230138101 HT, CARBON, 1/4W, 100, 5% R102~402 8230138104 HT, CARBON, 1/4W, 100K, 5% R103~403 8230138224 HT, CARBON, 1/4W, 220K, 5% R104~404 8230138470 HT, CARBON, 1/4W, 47, 5% R105~405 8230138512 HT, CARBON, 1/4W, 5.1K, 5% R106~406 8230138512 HT, CARBON, 1/4W, 5.1K, 5% R107~407 8230138153 HT, CARBON, 1/4W, 15K, 5% R108~408 8230138153 HT, CARBON, 1/4W, 15K, 5% R109~409 8230138103 HT, CARBON, 1/4W, 10K, 5% R110~410 8230138243 HT, CARBON, 1/4W, 24K, 5% R111~411 8230138303 HT, CARBON, 1/4W, 30K, 5% R112~412 8230138243 HT, CARBON, 1/4W, 24K, 5% R113~413 8230138303 HT, CARBON, 1/4W, 30K, 5%
R652, 653 8230138103 HT, CARBON, 1/4W, 10K, 5% R654, 655 8230138470 HT, CARBON, 1/4W, 47, 5% R656 R657 8230138474 HT, CARBON, 1/4W, 470K, 5% 8230138473 HT, CARBON, 1/4W, 47K, 5%
R658 8230138473 HT, CARBON, 1/4W, 47K, 5% R901, 902 8230138203 HT, CARBON, 1/4W, 20K, 5%
10
MN-12/04
Ref. No.
Part No.
Description
Ref. No.
Part No.
Description
VR101~401 8240241000 POT, PI, RT09, 20KC, RK09K113 VR102~402 8240245000 POT, PI, SL030, 20KAA, RS30H11 VR103~403 8240243000 POT, PI, RT09, 50KB, RK09K113 VR104~404 8240243000 POT, PI, RT09, 50KB, RK09K113 VR105~405 8240243000 POT, PI, RT09, 50KB, RK09K113 VR106~406 8240244000 POT, PI, RT09, 50KA, RK09K113 VR151 VR451 8240274004 POT, PI, SL30, 20KAA, RS30H121 8240286010 VR, RK09K12C-L25, 20KAA
C501~801 8232144226 ALU, 25V, 22µF, 20%, SME-VB C502~802 8232144226 ALU, 25V, 22µF, 20%, SME-VB C503~803 8232050101 CER, 50V, 100PF, 5%, SL C551 8232143107 ALU, 16V, 100µF, 20%, SME-VB C552, 553 8232144475 ALU, 25V, 4.7µF, 20%, SME-VB C554, 555 8232144475 ALU, 25V, 4.7µF, 20%, SME-VB C651 8232143477 ALU, 16V, 470µF, 20%, SME-VB C652, 657 8232143477 ALU, 16V, 470µF, 20%, SME-VB C653, 658 8232144226 ALU, 25V, 22µF, 20%, SME-VB C654, 659 8232144226 ALU, 25V, 22µF, 20%, SME-VB C655, 660 8232144226 ALU, 25V, 22µF, 20%, SME-VB C662 8232144475 ALU, 25V, 4.7µF, 20%, SME-VB C663 8232143477 ALU, 16V, 470µF, 20%, SME-VB C901, 902 8232144226 ALU, 25V, 22µF, 20%, SME-VB
VR501~801 8240274004 POT, PI, SL30, 20KAA, RS30H121 VR502~802 8240243000 POT, PI, RT09, 50KB, RK09K113 VR503~803 8240244000 POT, PI, RT09, 50KA, RK09K113 VR901 8240286010 VR, RK09K12C-L25, 20KAA
CAPACITORs ALU = Electrolytic CER = Ceramic type PES = Mylar type Ref. No. Part No. Description C101~401 8232144226 ALU, 25V, 22µF, 20%, SME-VB C102~402 8232050100 CER, 50V, 10PF, +-.5PF, SL C104~403 8232144226 ALU, 25V, 22µF, 20%, SME-VB C105~405 8232050220 CER, 50V, 22PF, 5%, SL C106~406 8232901332 PES, 50V, .0033µF, 5%, AMZV C107~407 8232050100 CER, 50V, 10PF, +-.5PF, SL C108~408 8232901103 PES, 50V, 0.01µF, 5%, AMZV C109~409 8232901103 PES, 50V, 0.01µF, 5%, AMZV C110~410 8232146105 ALU, 50V, 1µF, 20%, SME-VB C111~411 8232144226 ALU, 25V, 22µF, 20%, SME-VB C112~412 8232050101 CER, 50V, 100PF, 5%, SL C113~413 8232050101 CER, 50V, 100PF, 5%, SL C114~414 8232143476 ALU, 16V, 47µF, 20%, SME-VB C115~415 8232050100 CER, 50V, 10PF, +-.5PF, SL C116~416 8232050101 CER, 50V, 100PF, 5%, SL C151, 251 8232050100 CER, 50V, 10PF, +-.5PF, SL C152, 252 8232144226 ALU, 25V, 22µF, 20%, SME-VB C153, 253 8232050101 CER, 50V, 100PF, 5%, SL C154, 254 8232050101 CER, 50V, 100PF, 5%, SL C351 C352 8232050100 CER, 50V, 10PF, +-.5PF, SL 8232144226 ALU, 25V, 22µF, 20%, SME-VB Ref.No. CN501 J101~401 J151~451 J501~801 J502~802 J603 J901, 902 S651 PartNo. MISCELLANEOUS Description
8745503006 CONN, XH, 6P 8245330003 CONN, PHONE, YKB21-5011 8245339013 CONN, PH0NES, YKB21-5009 8245330003 CONN, PHONE, YKB21-5011 8245330003 CONN, PHONE, YKB21-5011 8245258000 CONN, PLJACK, DC-INLET 8245330003 CONN, PHONE, YKB21-5011 8253467000 SW, SS010-P022MAM-PA9
C353, 354 8232050101 CER, 50V, 100PF, 5%, SL C451, 452 8232143477 ALU, 16V, 470µF, 20%, SME-VB C453, 454 8232050101 CER, 50V, 100PF, 5%, SL C455, 456 8232050220 CER, 50V, 22PF, 5%, SL
11
MN-12/04
MN-04 Parts List
· MAIN / SELECTOR PCBs
Ref.No. U101 U501 U502 U801 PartNo. 8236046100 8236046100 8236046200 8236046100 ICs Description IC, µPC4570C IC, µPC4570C IC, NJM4556AD IC, µPC4570C TRANSISTORs Description TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T DIODEs Description D, HT, 1SS136 LED, SML1216W D, HT, 1SS136 D, HT, 1SS136 OPT, V, LED, RED, RJ3-2034ADS OPT, V, LED, GRN, RT3-5034YGS D, HT, 1SS136 RESISTORs Description HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 330K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 68K, 5% HT, CARBON, 1/4W, 27K, 5% HT, CARBON, 1/4W, 56K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 1K, 5% Ref.No. PartNo. R506, 606 8230138102 R507, 607 8230138220 R508, 608 8230138203 R701 8230138153 R702 8230138473 R703, 704 8230138473 R705 8230138105 R706 8230138222 R801 8230138222 R802 8230138203 R803, 804 8230138222 R805, 806 8230138203 R807, 808 8230138680 R809 8230138105 R810, 811 8230138473 R812 8230138271 VR101~501 8240274003 VR102~401 8240243000 Description HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 22, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2.2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 68, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 270, 5% POT, PI, SL30, 20KA, RS30H111 POT, PI, RT09, 50KB, RK09K113
Ref.No. Q101, 102 Q103 Q501, 601 Q701 Q702 Q801 Q802 Q803
PartNo. 8236408900 8234108800 8236408900 8236408900 8234108800 8236408900 8234108800 8236408900
Ref.No. D101, 102 D103 D104 D701, 702 D703 D802 D803, 804
PartNo. 8234500700 8234109200 8234500700 8234500700 8234104000 8234103900 8234500700
Ref. No. R101 R102 R103 R105 R107~407 R108~408 R109~409 R110~410 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R501, 601 R502, 602 R503, 603 R504, 604 R505, 605
Part No. 8230138222 8230138473 8230138102 8230138334 8230138103 8230138203 8230138103 8230138203 8230138222 8230138103 8230138102 8230138222 8230138103 8230138222 8230138473 8230138104 8230138222 8230138473 8230138153 8230138222 8230138104 8230138683 8230138273 8230138563 8230138203 8230138102
Ref. No. C101~401 C102 C104 C105 C106 C107 C501, 601 C502, 602 C503, 603 C504, 604 C505, 605 C506, 606 C507, 607 C701 C801 C802, 803 C804 C805 C806
CAPACITORs ALU = Electrolytic CER = Ceramic type Part No. Description 8232144226 ALU, 25V, 22µF, 20%, SME-VB 8232143107 ALU, 16V, 100µF, 20%, SME-VB 8232144226 ALU, 25V, 22µF, 20%, SME-VB 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB 8232050101 CER, 50V, 100PF, 5%, SL 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB 8232144226 ALU, 25V, 22µF, 20%, SME-VB 8232050100 CER, 50V, 10PF, ±.5PF, SL 8232050100 CER, 50V, 10PF, ±.5PF, SL 8232144226 ALU, 25V, 22µF, 20%, SME-VB 8232143107 ALU, 16V, 100µF, 20%, SME-VB 8232050101 CER, 50V, 100PF, 5%, SL 8232050101 CER, 50V, 100PF, 5%, SL 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB 8232143477 ALU, 16V, 470µF, 20%, SME-VB 8232143477 ALU, 16V, 470µF, 20%, SME-VB 8232144226 ALU, 25V, 22µF, 20%, SME-VB 8232143477 ALU, 16V, 470µF, 20%, SME-VB 8232143477 ALU, 16V, 470µF, 20%, SME-VB MISCELLANEOUS PartNo. Description 8745503006 CONN, XH, 6P 8245258000 CONN, PLJACK, DC-INLET 8245339012 CONN, PHONE, YKB21-5011 8245339013 CONN, PH0NES, YKB21-5009 8245339013 CONN, PH0NES, YKB21-5009 8253464000 SW, SLIDE, SSSF3-2 8253467000 SW, SS010-P022MAM-PA9 8277475013 CORDASSY, SCN-XH, 6P, 130 8277476020 CORD, M3-SIN*200, BLK 8277476015 CORD, 1P*150, BLK
Ref.No. CN101 CN801 J101~401 J501, 601 J602 S101 S801 W101 W801 W802
12
MN-12 MAIN/METER PCBs PATTERN DRAWING
R651
R356
D652
PCB#5238-10A
J603 VR203 C655 C660 C305 R305 VR303 C406 R406 R409 R408 C413 U401 C405 C407 R205 R405 VR403 C651 1 3
R655 R652 E U601 U602 R654 R653 R656 J901 C657 D655 D654
R156
D653
S651
C652
R256 E B C252 Q251 R254 B
C553
PCB#5238-10B
Q351 B
U551 1 C552 CN501 R552 R553 R551 D551 D561 D552 D562 D563 D553 D564 D554 D565 D555 1 C555 C554 W501 J251 R255
Q151 E
VR103
C206 R206 R209 R208 C213 U201
C207
C105
C205 VR204
VR104 C113 R107 C106 C107 R109 R108 R114 R106 C108 C109
R354 J351 J902 R355 C351 R657 C352 R353 E B R352 Q651 C354 R658 U351
R106
C152 R154 J151 R155
VR304 R207 C208 C209 R214 R307 R308 R314 R306 C306 C307 C308 C309
C313 R309
C662 VR494 C408 R407 W801 C663 R351 C902 C551 R709 R809 R902 VR901 C251 R253 VR603 R703 R704 R603 R604 R501 R502 R601 R602 VR703 R803 R804 R701 R702 VR803 R801 R802 VR451 VR151 R459 R457 R458 C901 R901 R252 C254 U251 C154 R152 R452 C453 R455 R451 J451 R460 C452 R456 R153 C151 R251 C253 U151 R705 R706 R707 R151 C153 C653 C456 R454 VR801 R453 C455 C451 U451 C454 C353
C409
R414
R509
VR106 R212 R112 R110
VR206 R312 R210
VR306 R412 R310
VR406 R503 R504 R410
VR503
R113
R313
R213
R211
R311
R111
R413
R411
R215 VR101 R104 C111 Q201 E B
R315 R304 R322 Q401 E
R415 B VR301 C411 D401 R420
R115 D101 R120 R117 R119 Q102
E
C202 R203
B
R118
R221
C212
Q301 E B VR201 VR301 R204 C211 C311 R316 D301 D201 R216 R320 R220 R122 R222 C214 C310 R319 C210 R219 R317 R217 C114 Q202 R202 Q302 B E E B R218 R121 R318 C102 R102 C201 R103 C101 U101 R201 U102 R301 C112
R608
C603
R808
R116 Q101 B E
R605
R606
R805 R806
VR105
VR205
VR305
VR405
VR502
VR602
R609
VR702
VR802
R607
C803
R416 C410 R419 R417 C314 Q402 E R418 R321 C302 R302 R303 C301 C312 U301 C316 R323 C315
R404 R422 C659 C654 C414
VR501
U501 R508 C503 R507
U701 R708 C703
B R421 C402 R402 R403 R401 C412 U302 C416 R423 VR402 C415 J501 W802 C401 C501
R505
R506 VR601 VR701
C110
R101
C601 C502 J502 J601
C602 J602
C701 J701 C702 J702
C801 J801
R807
C802
C658
J101 R123
C116 C115
J201 R223
C216 C215
J301
J401
J802
VR102
VR202
VR302
R124 C104 C204
R224 C304
R324 C404
R424
MN-12/04
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MN-12/04
MN-04 MAIN/SELECTOR PCBs PATTERN DRAWING
4. CIRCUIT & BLOCK DIAGRAMS
MN-12 CIRCUIT DIAGRAM
C105 22p C102 10p TRIM VR101 20kC C114 47uF 2 1 R124 VR102 20kA 3 2 345 1 C104 22uF R123 15k C116 100p 2 3 4570 4 U101A R122 R104 100k 47 INPUT LEVEL C108 .01uF R107 15k Q101 D1858 R115 10k -VCC C113 100p 56k +VCC 8 1 C115 10p R105 5.1k 3 2 VR103 50kB 5 4 1
R106 5.1k C107 10p +VCC
R103 220k INPUT CH1 -60~-10dBV 2 3 1 J101 C101 R101 22uF 100 R121 100
R110 24k VR105 50kB R112 24k 3 2 541 AUX VR106 50kA
PAN 3 2 541
R111 30k
EQ.H C106 .0033uF
5 6 4570
7
2 3
8 4570 4 1
R113 30k
R151 68k C151 10p
R102 100k C112 100p +VCC
U101B
U201A R109 10k C109 .01uF 2 1
R114 20k 2 C153 100p 3
+VCC 8 4570 4 -VCC U151A 1
MASTER LEVEL VR151B 20kAA 6 R152 5 15k 4 C154 100p
R153 56k +VCC 8 1 4 U251A R156 3.3k R154 1k Q151 D1858 MASTER OUT J151 2 3 1 -10dBV L
-VCC
C111 10uF Q102 B1237 R120 1k R118 22k R117 22k C110 R119 1u 470k
2 3
C152 22uF
4570
3 4 5 VR104 50kB
R108 15k EQ.L
-VCC
D101 PEAK
R116 2.4k
R251 68k
C251 10p
C202 10p
-VCC C215 10p TRIM VR201 20kC C214 47uF 2 345 1 VR202 20kA 3 2 1 C204 22uF R205 5.1k 3 EQ.H C206 .0033uF 1
C205 22p VR203 50kB 5 4 1 2 C253 100p R206 5.1k C207 10p VR206 50kA 6 5 C213 100p 4570 U201B 541 R209 10k C209 .01uF 2 3 4 5 VR204 50kB EQ.L C305 22p 1 R208 15k AUX 2 3 C353 100p 7 3 2 R214 20k R210 24k VR205 50kB R212 24k 541 PAN 3 2 R213 30k R211 30k
6 5 4570
7
3 2 1
R252 15k
R253 56k 6 5 4570 7 U251B
R254 1k C252 22uF Q251 D1858 R256 3.3k
J251 2 3 1 -10dBV R
R203 220k R201 100 C201 22uF 5 6 R202 100k C212 100p +VCC R222 100k R218 22k Q201 D1858 C211 10uF 4570 7 U102B R221 100
U151B VR151A 20kAA
R224 56k +VCC R223 15k C216 100p 2 8 3 4570 4 U102A -VCC
C254 100p
CH2 -60~-10dBV
2 3 1 J201
R351 20k +VCC
C351 10p
R204 47
INPUT LEVEL C208 .01uF R207 15k
R353 1 R352 20k C354 100p 6 5 4570 U351B 20k 7 R354 22k C352 22uF R355 1k R356 3.3k Q351 D1858 J351 2 AUX 3 1 SEND -10dBV C554 4.7uF R155 33k C455 22p R255 33k R453 27k +VCC R451 3.3k C453 100p R455 3.3k 2 3 8 4556 1 C451 470uF R459 22 J451 2 HEAD R457 10k 3 1 PHONE 32ohm
8 4570 4 -VCC
Q202 B1237 R220 1k
U351A
D201 PEAK
R217 22k C210 R219 1u 470k
R215 10k
STEREO INPUT CH5 L (MONO) -10dBV 2 3 1 J501
R216 2.4k
C501 22uF INPUT LEVEL 3 VR501A 20kAA 1 2 R501 10K 2 PAN 3 VR502 50kB 1 4 5 R504 20k R508 47k +VCC 2 3 8 4570 4 1 VR503 50kA 541 AUX 3 2 R509 20k 1 6 V C C 5 A R551 15k VR602 50kB 1 4 5 R604 20k R608 47k 6 5 4570 U501B AUX 3 VR603 50kA 541 2 R609 20k D561 D563 D565 D562 D564 + + - 6 3 0 5 1 d d d d 0 B B B B d B R552 15k 1 1 5 O U T A 4 A 2 1 4 I N A 3 A 3 1 3 O U T B 2 A 4 1 2 I N B 1 1 1 0 9 3 B G N D 8 D551 R553 47 D553 D555 D554 R502 20k W501 1 2 3 4 5 6
BAR GRAPH
C302 10p
-VCC C315 10p TRIM VR301 20kC R321 100 C314 47uF 2 345 1 VR302 3 20kA 2 1 C304 22uF R323 15k C316 100p R324 56k +VCC 2 8 1 R305 5.1k 3 2 VR303 50kB 5 4 1 R306 5.1k C307 10p +VCC 2 3 C313 100p 8 4570 4 U401A R309 10k C309 .01uF 2 3 4 5 VR304 50kB 1 R308 15k EQ.L CH8 R -10dBV -VCC 541 AUX CH7 L (MONO) -10dBV 1 VR306 50kA 3 2 R314 20k 2 3 1 J601 2 3 1 J502
R303 220k C301 R301 22uF 100
R310 24k VR305 50kB R312 24k
PAN 3 2 541
R311 30k
6 C502 5 22uF VR501B 20kAA 4
CH6 R -10dBV
R503 10k R505 47k R506 47k C503 100p R507 47k
CN501 1 2 3 4 5 6
C555 4.7uF
EQ.H C306 .0033uF
CH3 -60~-10dBV
2 3 1 J301
5 6 4570
7 U301B
R313 30k
4 U451A -VCC
R302 100k C312 100p +VCC
3 4570 4 U301A -VCC
U501A
C601 22uF INPUT LEVEL 3 VR601A 20kAA 1 2 3 1 J602 6 C602 22uF VR601B 20kAA 5 4 2
-VCC
5 4 B B U551
PHONES 3 5 2 4 C456 22p
R322 R304 100k 47 R318 22k R317 22k C310 1u Q301 D1858 C311 10uF
INPUT LEVEL C308 .01uF R307 15k
R601 10K 2 R603 10k R605 47k R606 47k
PAN 3
R602 20k
IR2E27 1 1 2 A B B 5 6 7
7 6 1 VR451 20kAA R452 3.3k C553 4.7uF C551 100uF C454 100p
R454 27k C452 470uF 7 4556 R460 U451B 22 R458 R456 10k 3.3k 6 5
Q302 B1237 R320 1k D301 PEAK
R315 10k
R319 470k
R316 2.4k
C552 4.7uF -VCC AGND
-VCC C402 10p TRIM VR401 20kC C414 47uF 2 345 1 VR402 20kA 3 2 1 C404 22uF C415 10p R405 5.1k
C405 22p VR403 50kB 3 2
C603 100p R607 47k 5 4 1 R406 5.1k R410 24k VR405 50kB VR406 50kA 3 4570 U401B 7 541 AUX 2 R414 20k CH10 R -10dBV 2 3 1 J702 R412 24k 541 PAN 3 2 R413 30k CH9 L (MONO) -10dBV C407 10p 2 3 1 J701 R411 30k
7
R403 220k R401 100 C401 22uF 5 6 R402 100k C412 100p +VCC R418 22k Q402 B1237 R420 1k D401 PEAK R419 470k R417 22k Q401 D1858 C410 1u R416 2.4k R415 10k R422 100k C411 10uF 4570 7 U302B R421 100
R424 56k +VCC R423 15k C416 100p 2 8 1
C701 22uF
INPUT LEVEL 3 R701 10K 2 R703 10k R705 47k R706 47k PAN 3 1 VR702 50kB 1 4 5 R704 20k R708 47k +VCC 2 3 8 4570 4 1 VR703 50kA 541 R702 20k DC IN (12V 600mA) J603 1 3 2
POWER SW 4 6 S651B 2 S651A 1 3 D652 3 U602 78M12 IN OUT G R651 3.3k 2 C651 470uF D653 +VCC C653 22uF R652 10k 2 3 470uF 8 4570 4 1 R654 47 AGND C652
EQ.H C406 .0033uF
C654 22uF C655 22uF
CH4 -60~-10dBV
2 3 1 J401
VR701A 20kAA
2
5
1
D655 1SR139-400 R656 Q651 470k B1237 R657 47k R658 C662 47k 4.7uF C663 470uF
3 4570 4 U302A -VCC
6 5 C413 100p
R404 47
INPUT LEVEL C408 .01uF R407 15k
R409 10k C409 .01uF 2 1 R408 15k EQ.L
6 C702 5 22uF VR701B 20kAA 4
D654
U601A C657 470uF
W801 AUX 3 2 1 R709 20k
W802 1
R653 10k 6 5
U601B 4558 7 R655 47
-VCC
C658 22uF C659 22uF
C660 22uF
3 4 5 VR404 50kB
C703 100p R707 47k C801 22uF INPUT LEVEL CH11 L (MONO) -10dBV 2 3 1 J801 3 VR801A 20kAA 1 2 3 1 J802 6 C802 22uF VR801B 20kAA 5 4 2 R801 10K 2
U701A
-VCC
AGND PAN 3 VR802 50kB 1 4 5 R804 20k R808 47k 6 5 4570 U701B AUX 3 VR803 50kA 541 2 R809 20k R802 20k
AUX RTN L -20dBV 2 3 1 J901
C901 22uF
-VCC CH12 R -10dBV
R901 20k C902 22uF
R803 10k R805 47k R806 47k
R -20dBV
2 3 1 J902 AUX RTN
3 2
5 4 VR901 20kAA
R902 20k
C803 100p R807 47k
7
761
AGND
MN-12/04
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16
MN-12/04
MN-04 CIRCUIT DIAGRAM
C502 10pF R104 0 R105 330k C503 10pF PCB.523720A
R501 68k
R503 56k MASTER LEVEL VR501A 20kAA 3 2 C507 100pF R502 27k +B MASTER OUT C504 22uF 1 U502A 4 -B R504 20k R506 1k R505 1k Q501 D1858 J501 2 3 1 L -10dBv
C102 100uF INPUT 2 3 1 R102 47k C106 100pF J101 R101 2.2k C101 22uF 2 3
+B 8 4570 4
C103 0
INPUT LEVEL C104
R107 10k
PAN R108 20k 3
C501 22uF 2 3
+B 8 1 4570 4 U501A C506
2 3
U101A 1
8 4556
CH1 -60~-10dBv
22uF VR101 -B 20kA
3 2
VR102 50kB R109 10k
2 R110 20k 100pF
5 4 1
-B
1
1 R103 1k +B D104 1SS136 R112 10k R113 1k Q102 D1858 C105 0.47uF AGND AGND R115 10k C107 0.47uF AGND R117 47k 6 R116 2.2k 5 4570 7 U101B D102 1SS136 R121 15k R120 47k Q103 B1237 R118 100k 7 8 9 D703 PEAK PCB.523720B AGND -B R706 2.2k R207 10k INPUT LEVEL VR202 50kB 2 R209 10k 5 4 1 PAN 3 2 2 R210 20k 1 CN801 1 3 2 DCIN CN802+ PIN A 2 R310 20k CN802PIN A 1 4 6 1 S801B 8 R812 270 C806 470uF R407 10k INPUT LEVEL VR402 50kB 2 R409 10k 5 4 1 Q801 D1858 R804 2.2k R806 20k -B 2 R410 20k 7 AGND 5 R801 2.2k 3 S801A 8 2 3 R803 2.2k 4570 U801A 4 1 R807 68 Q803 D1858 +B D804 1SS136 R208 20k R705 1M R119 2.2k 1 2 3 4 5 6 W101 R122 2.2k W202 1 1 2 3 4 5 6 CN101 W102 1 2 1 0 R704 47k Q702 B1237 R703 47k 1 4 3 2 C606 100pF 4 D103 SML1216W 3 +B C505 100uF R507 22 D101 1SS136 R601 R114 2.2k R111 2.2k 1 S101A 5 C601 22uF 6 5 4570 U501B 68k VR501B 20kAA 6 5 C607 100pF R602 27k 6 5 4556 7 R603 56k C604 22uF R605 1k Q601 D1858 J601 2 3 1 R -10dBv C602 10pF C603 10pF
7
Q101 D1858
U502B
R604 20k
R606 1k
+B
J602 2
+B
S101B 6
C701 0.47uF
Q701 D1858 R701 15k D702 1SS136 R702 47k
C605 100uF
R607 22
3 1
PHONES OUT
R508
20k
R123 100k
D701 1SS136
R608
20k
AGND
C201 22uF 2 3 1 J201
-B
CH2 -10dBv
3 VR201 20kA 1
D802 POWER
R802 20k
R805 20k
C802 470uF
D803 1SS136 R809 1M
C301 22uF 2 3 1 J301
R307 10k INPUT LEVEL VR302 50kB 2 R309 10k
PAN 3
R308 20k
R810 47k Q802 B1237
CH3 -10dBv
3 VR301 20kA 1
C805 470uF
5 4 1
AGND
C801 470uF
6 5 4570
7 U801B
R808 68 C803 470uF
AGND
C804 22uF
R811 47k
C401 22uF 2 3 1
PAN 3
R408 20k
CH4 -10dBv
3 J401 VR401 20kA 1
W801 SIN-3M 1
W802 SIN-L150 1
AGND AGND
MN-12 BLOCK DIAGRAM
MN-12/04
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MN-12/04
MN-04 BLOCK DIAGRAM
COMP ALC INPUT LEVEL CH1 -10dBV -60dBV INPUT LEVEL CH2 -10dBV INPUT LEVEL CH3 -10dBV INPUT LEVEL CH4 -10dBV
STEREO BUSS L R
PEAK LED
PAN
L STEREO OUT -10dBV R MASTER
PAN
PHONES
PAN
PAN
MN-12/04
19
MN-12/04
FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A.
© PRINTED IN JAPAN AUG 1998 8288773000
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