Page 1
Service Manual
Model
MN-12/04
MN-12
MN-04
Mini Mixer
1
Page 2
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.
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.
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 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
Read instructions - All the safety and operating instruc-
1.
tions should be read before the appliance is operated.
Retain instructions - The safety and operating instructions
2.
should be retained for future reference.
Heed warnings - All warnings on the appliance and in the
3.
operating instructions should be adhered to.
Follow instructions - All operating and use instructions
4.
should be followed.
Water and Moisture - The appliance should not be used
5.
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
6.
with a cart or stand that is recommended by the manufacturer.
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
7.
mounted to a wall or ceiling only as recommended by the
manufacturer.
Ventilation - The appliance should be situated so that its
8.
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.
2
Heat - The appliance should be situated away from heat
9.
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
Power Sources - The appliance should be connected to a
10.
power supply only of the type described in the operating
instructions or as marked on the appliance.
Grounding or Polarization - The precautions that should
11.
be taken so that the grounding or polarization means of
an appliance is not defeated.
Power Cord Protection - Power supply cords should be
12.
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 rec-
13.
ommended by the manufacturer.
Nonuse Periods - The power cord of the appliance should
14.
be unplugged from the outlet when left unused for a long
period of time.
Object and Liquid Entry - Care should be taken so that
15.
objects do not fall and liquids are not spilled into the enclosure through openings.
Damage requiring Service - The appliance should be ser-
16.
viced by qualified service personnel when:
The power supply cord or the plug has been damaged;
A.
or
Objects have fallen, or liquid has been spilled into the
B.
appliance; or
The appliance has been exposed to rain; or
C.
The appliance does not appear to operate normally or
D.
exhibits a marked changed in performance; or
The appliance has been dropped, or the enclosure
E.
damaged.
Servicing - The user should not attempt to service the ap-
17.
pliance beyond that described in the operating instructions. All other servicing should be referred to qualified
service personnel.
Page 3
TABLE OF CONTENTS
MN-12/04
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. CONTROLS, INDICATORS AND CONNECTORS . . . . . . . . . . . .
3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST . . . . . .
4. CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . .
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)
4
6
8
15
* 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
Page 4
MN-12/04
1. SPECIFICATIONS
MN-12
DEFINITION ( Specification Unit : 0 dBV = 1 Vrms)
Normal Fader Position
Master fader At 7~8 position
Condition AUX RTN : -20 dBV / 1 kHz, AUX RTN VR : Max
Adjust Master fader for -10 dBV at STEREO OUT.
Input fader At 7~8 position
Condition 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 -60dBV (MIC) ~ -10dBV (LINE)
Impedance 20 kΩ or more
EQ HI ± 13dB ± 3dB ( -10dBV / 10 kHz )
EQ LOW ± 13dB ± 3dB ( -10dBV / 100 Hz )
INPUT 5-6, 7-8, 9-10, 11-12
Input level -10dBV
Impedance 8 kΩ or more
AUX RTN
Input level -10dBV
Impedance 8 kΩ or more
OUTPUT SECTION
STEREO OUT
Level -10dBV
Load Impedance 1kΩ
Frequency Response 20 ~ 20kHz ± 1.5dB ( INPUT 1~4 : -60dBV)
S/N 80 dB or more ( DIN AUDIO,INPUT 1~4 : -10dBV)
Distortion 0.01 % or less ( INPUT 1~8 : 1kHz / 0dBV , 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 1kΩ
Frequency Response 20 ~ 20kHz +1dB ( INPUT : -10dBV)
S/N 86 dB or more ( DIN AUDIO,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 32Ω
Frequency Response 20 ~ 20 kHz ± 1.5dB ( 32 Ω load, INPUT : -10dBV, OUTPUT : 40mW )
Distortion 0.2 % or less ( 32 Ω load, 1kHz, OUTPUT : 40mW )
20 ~ 20kHz ±1dB ( INPUT 1~8 : -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)
0.05 % or less ( INPUT 1~4 : 1kHz/-50dBV , OUTPUT : 0dBV )
88 dB or more ( IHF-A, INPUT : -10dBV)
20 ~ 20 kHz ± 3dB ( 32 Ω load, INPUT : -10dBV, OUTPUT : 40mW )
GENERAL
Dimensions 356 (W) × 198 (D) × 45 (H) mm
Weight 1.3 kg
Power supply
USA/CND 120VAC, 60Hz
EUR/UK 230VAC, 50/60Hz
JPN 100VAC, 50/60Hz
4
Page 5
MN-04
DEFINITION ( Specification Unit : 0 dBV = 1 Vrms )
Normal Fader Position
Master fader At 7~8 position
Condition 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).
Input fader At 7~8 position
Condition INPUT: -10 dBV / 1 kHz, PAN : L(R), TRIM : LINE
Adjust Input fader for -10 dBV at STEREO OUT.
INPUT SECTION
INPUT 1
Input level -60dBV(MIC) / -50~-20dBV(ALC ON) / -10dBV(LINE)
Impedance 20 kΩ or more
INPUT 2~4
Input level -10dBV
Impedance 8 kΩ or more
OUTPUT SECTION
STEREO OUT
Level -10dBV
Load Impedance 1kΩ
Frequency Response 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 32Ω
Frequency Response 80 ~ 20 kHz +1-3dB ( 32 Ω load, INPUT : -60dBV )
80 ~ 20 kHz +1-3dB ( 32 Ω load, INPUT : -10dBV )
Distortion 0.2 % or less ( 32 Ω load, 1kHz, 200 mW )
GENERAL
Dimensions 193 (W) × 130 (D) × 45 (H) mm
Weight 0.5 kg
Power supply
USA/CND 120VAC, 60Hz
EUR/UK 230VAC, 50/60Hz
JPN 100VAC, 50/60Hz
MN-12/04
* Specifications and appearance are subject to change without notice for product improvement.
5
Page 6
MN-12/04
2. CONTROLS, INDICATORS & CONNECTORS
< MN-12 >
312 465
7
8
9
10
11
EQ HI
EQ LO
AUX
PAN
TRIM
+
DC IN
0
+-
+0-
5
10
0
R
L
MIC
LINE
10101010
5555
0000
POWER
0
EQ HI
+-
EQ LO
+0-
5
AUX
10
0
PAN
R
L
TRIM
MIC
LINE
PEAK
1234
0
EQ HI
+-
EQ LO
+0-
5
AUX
10
0
PAN
R
L
TRIM
MIC
LINE
PEAK PEAK PEAK
EQ HI
EQ LO
AUX
PAN
TRIM
0
+-
+0-
5
10
0
R
L
MIC
LINE
16
-
12V
STAND BY ON
AUX
PAN/
BAL
10
5
0
5/MONO 6
12
L/MONO
AUX RTNRAUX SEND
AUX
1050
PAN/
BAL
RL
10
555
5
000
0
7/MONO 8 9/MONO 10 11/MONO 12
AUX
1050
RL
10
5
0
1050
PAN/
BAL
RL
10
5
0
LR
STEREO OUT
AUX
1050
PAN/
BAL
RL
13
+
6
3
0
5
10
LR
-
AUX RTN
PHONES
1010 10 10
5
0
1050
1050
MN12
10
5
0
MASTER
14
15
17
18 19
1. DC IN jack [DC IN]
2. Power switch [STANDBY]
3. Aux return jacks [AUX RTN
4. Aux send jack [AUX SEND
]
]
5. Stereo out jacks [STEREO OUT]
6. High equalizer knobs 1~4 [EQ HI]
7. Low equalizer knobs 1~4 [EQ LO]
8. Aux level knob 1~8 [AUX]
9. Panpot Knobs 1~4 [PAN
10. Input trim knobs 1~4 [TRIM
]
]
6
11. Power LED [POWER]
12. Panpot / Balance knobs 5~8 [PAN/BAL
13. LED level meter
14. Aux return knob [AUX RTN]
15. Phones knob [PHONES
]
16. Input fader 1~12 [1~12]
17. Master fader [MASTER
]
18. Input jacks 1~12
19. Headphone jack
]
Page 7
MN-12/04
< MN-04 >
123
5 6
+
-
DC IN
9V
MIC
MIC
LINE
ALC ON
PANPAN
RLRL
PAN
RL
PAN
RL
ONSTANDBY
4
STEREO OUT
MN04
PEAK
RL
7
10
5
0
9
1. Battery compartment
2. DC IN jack [DC IN]
3. Power switch [STANDBY
4. Stereo out jacks [STEREO OUT
5. Level selector switch
6. Power LED
]
10
5
0
10
5
0
10
5
0
4321
10
5
0
MASTER
8
10
11
12
7. Panpot knob 1~4 [PAN]
8. Peak LED [PEAK
9. Input fader 1~4 [1~4]
]
10. Master fader [MASTER]
11. Input jacks 1~4
12. Headphone jack
]
7
Page 8
MN-12/04
3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST
MN-12 OVERALL EXPLODED VIEW & PARTS LIST
No. PartsNo.
Description
1 8212600000
PANEL, FRONT, MN-12
2 8216598000
SHIELD, PLATE, MN12
3 8274180000
PCB Assy, METER, MN-12
4 8270727003
ADAPTOR, AD-12A, USA/CND
8270727006
ADAPTOR, AD-12A, EUR
8270727007
ADAPTOR, AD-12A, UK
8270727010
ADAPTOR, AD-12A, JPN
5 8274179000
PCB Assy, MAIN, MN-12
6 8226198004
ROTARY, KNOB, (D), GRY
7 8226198003
ROTARY, KNOB(C), GRN
8 8226198002
ROTARY, KNOB(B), YEL
9 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
Page 9
MN-04 OVERALL EXPLODED VIEW & PARTS LIST
MN-12/04
No. PartsNo.
Description
1 8221262000
KNOB, SW, WHT
2 8212599000
PANEL, FRONT, MN-04
3 8274182000
PCB Assy, SELECTOR, MN-04
4 8216599000
SHIELD, PLATE, MN-04
5 8270728003
ADAPTOR, AD-9A, USA/CND
8270728006
ADAPTOR, AD-9A, EUR
8270728007
ADAPTOR, AD-9A, UK
8270728010
ADAPTOR, AD-9A, JPN
6 8226198002
ROTARY, KNOB(B), Y
7 8226159001
KNOB, FADER, WHT
8 8274181000
PCB Assy , MAIN, MN-04
9 8226159002
KNOB, FADER, RED
10 8216513000
SPONG, MN06
11 8212115001
BATTERY, COVER, MN06
12 8221268000
PLATE, BOTTOM, MN-04
13 8207010700
RUBBER, FOOT
9
Page 10
MN-12/04
MN-12 PartsList
• MAIN / SELECTOR PCBs
ICs
Ref.No. PartNo. Description
U101~701 8236037200 IC, AN ALOG, µPC4570H
U102, 302 8236037200 IC, ANALOG, µPC4570H
U151~351 8236037200 IC, AN ALOG, µPC4570H
U451 8236041300 IC, AN ALOG, NJM4556L
U551 8236038900 IC, DIP, LEDDRIVER, IR2E27A
U602 8236032005 IC, REGULATOR, NJM78M12FA
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 8236408900 TR, 2SD1858, QR, T
Q651 8234108800 TR, 2SB1237, PQR, T
DIODEs
Ref.No. PartNo. Description
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 8234103900 OPT , V, LED, GRN, R T3-5034YGS
D654 8234017601 DIODE, 1SS133
D655 8234000700 DIODE, 1N4002
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%
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%
R351 8230138203 HT, CARBON, 1/4W, 20K, 5%
R352 8230138203 HT, CARBON, 1/4W, 20K, 5%
R353 8230138203 HT, CARBON, 1/4W, 20K, 5%
R354 8230138223 HT, CARBON, 1/4W, 22K, 5%
R355 8230138102 HT, CARBON, 1/4W, 1K, 5%
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 8230138470 HT, CARBON, 1/4W, 47, 5%
R651 8230138332 HT, CARBON, 1/4W, 3.3K, 5%
R652, 653 8230138103 HT, CARBON, 1/4W, 10K, 5%
R654, 655 8230138470 HT, CARBON, 1/4W, 47, 5%
R656 8230138474 HT, CARBON, 1/4W, 470K, 5%
R657 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
Page 11
MN-12/04
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 8240274004 POT, PI, SL30, 20KAA, RS30H121
VR451 8240286010 VR, RK09K12C-L25, 20KAA
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 8232050100 CER, 50V, 10PF, +-.5PF, SL
C352 8232144226 ALU, 25V, 22µF, 20%, SME-VB
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
Ref. No. Part No. Description
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
MISCELLANEOUS
Ref.No. PartNo. Description
CN501 8745503006 CONN, XH, 6P
J101~401 8245330003 CONN, PHONE, YKB21-5011
J151~451 8245339013 CONN, PH0NES, YKB21-5009
J501~801 8245330003 CONN, PHONE, YKB21-5011
J502~802 8245330003 CONN, PHONE, YKB21-5011
J603 8245258000 CONN, PLJACK, DC-INLET
J901, 902 8245330003 CONN, PHONE, YKB21-5011
S651 8253467000 SW, SS010-P022MAM-PA9
11
Page 12
MN-12/04
MN-04 Parts List
• MAIN / SELECTOR PCBs
ICs
Ref.No. PartNo. Description
U101 8236046100 IC, µPC4570C
U501 8236046100 IC, µPC4570C
U502 8236046200 IC, NJM4556AD
U801 8236046100 IC, µPC4570C
TRANSISTORs
Ref.No. PartNo. Description
Q101, 102 8236408900 TR, 2SD1858, QR, T
Q103 8234108800 TR, 2SB1237, PQR, T
Q501, 601 8236408900 TR, 2SD1858, QR, T
Q701 8236408900 TR, 2SD1858, QR, T
Q702 8234108800 TR, 2SB1237, PQR, T
Q801 8236408900 TR, 2SD1858, QR, T
Q802 8234108800 TR, 2SB1237, PQR, T
Q803 8236408900 TR, 2SD1858, QR, T
DIODEs
Ref.No. PartNo. Description
D101, 102 8234500700 D, HT, 1SS136
D103 8234109200 LED, SML1216W
D104 8234500700 D, HT, 1SS136
D701, 702 8234500700 D, HT, 1SS136
D703 8234104000 OPT, V, LED, RED, RJ3-2034ADS
D802 8234103900 OPT, V, LED, GRN, RT3-5034YGS
D803, 804 8234500700 D, HT, 1SS136
RESISTORs
Ref. No. Part No. Description
R101 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R102 8230138473 HT, CARBON, 1/4W, 47K, 5%
R103 8230138102 HT, CARBON, 1/4W, 1K, 5%
R105 8230138334 HT, CARBON, 1/4W, 330K, 5%
R107~407 8230138103 HT, CARBON, 1/4W, 10K, 5%
R108~408 8230138203 HT, CARBON, 1/4W, 20K, 5%
R109~409 8230138103 HT, CARBON, 1/4W, 10K, 5%
R110~410 8230138203 HT, CARBON, 1/4W, 20K, 5%
R111 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R112 8230138103 HT, CARBON, 1/4W, 10K, 5%
R113 8230138102 HT, CARBON, 1/4W, 1K, 5%
R114 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R115 8230138103 HT, CARBON, 1/4W, 10K, 5%
R116 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R117 8230138473 HT, CARBON, 1/4W, 47K, 5%
R118 8230138104 HT, CARBON, 1/4W, 100K, 5%
R119 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R120 8230138473 HT, CARBON, 1/4W, 47K, 5%
R121 8230138153 HT, CARBON, 1/4W, 15K, 5%
R122 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R123 8230138104 HT, CARBON, 1/4W, 100K, 5%
R501, 601 8230138683 HT, CARBON, 1/4W, 68K, 5%
R502, 602 8230138273 HT, CARBON, 1/4W, 27K, 5%
R503, 603 8230138563 HT, CARBON, 1/4W, 56K, 5%
R504, 604 8230138203 HT, CARBON, 1/4W, 20K, 5%
R505, 605 8230138102 HT, CARBON, 1/4W, 1K, 5%
Ref.No. PartNo. Description
R506, 606 8230138102 HT, CARBON, 1/4W, 1K, 5%
R507, 607 8230138220 HT, CARBON, 1/4W, 22, 5%
R508, 608 8230138203 HT, CARBON, 1/4W, 20K, 5%
R701 8230138153 HT, CARBON, 1/4W, 15K, 5%
R702 8230138473 HT, CARBON, 1/4W, 47K, 5%
R703, 704 8230138473 HT, CARBON, 1/4W, 47K, 5%
R705 8230138105 HT, CARBON, 1/4W, 1M, 5%
R706 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R801 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R802 8230138203 HT, CARBON, 1/4W, 20K, 5%
R803, 804 8230138222 HT, CARBON, 1/4W, 2.2K, 5%
R805, 806 8230138203 HT, CARBON, 1/4W, 20K, 5%
R807, 808 8230138680 HT, CARBON, 1/4W, 68, 5%
R809 8230138105 HT, CARBON, 1/4W, 1M, 5%
R810, 811 8230138473 HT, CARBON, 1/4W, 47K, 5%
R812 8230138271 HT, CARBON, 1/4W, 270, 5%
VR101~501 8240274003 POT, PI, SL30, 20KA, RS30H111
VR102~401 8240243000 POT, PI, RT09, 50KB, RK09K113
CAPACITORs
ALU = Electrolytic
CER = Ceramic type
Ref. No. Part No. Description
C101~401 8232144226 ALU, 25V, 22µF, 20%, SME-VB
C102 8232143107 ALU, 16V, 100µF, 20%, SME-VB
C104 8232144226 ALU, 25V, 22µF, 20%, SME-VB
C105 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB
C106 8232050101 CER, 50V, 100PF, 5%, SL
C107 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB
C501, 601 8232144226 ALU, 25V, 22µF, 20%, SME-VB
C502, 602 8232050100 CER, 50V, 10PF, ±.5PF, SL
C503, 603 8232050100 CER, 50V, 10PF, ±.5PF, SL
C504, 604 8232144226 ALU, 25V, 22µF, 20%, SME-VB
C505, 605 8232143107 ALU, 16V, 100µF, 20%, SME-VB
C506, 606 8232050101 CER, 50V, 100PF, 5%, SL
C507, 607 8232050101 CER, 50V, 100PF, 5%, SL
C701 8232146474 ALU, 50V, 0.47µF, 20%, SME-VB
C801 8232143477 ALU, 16V, 470µF, 20%, SME-VB
C802, 803 8232143477 ALU, 16V, 470µF, 20%, SME-VB
C804 8232144226 ALU, 25V, 22µF, 20%, SME-VB
C805 8232143477 ALU, 16V, 470µF, 20%, SME-VB
C806 8232143477 ALU, 16V, 470µF, 20%, SME-VB
MISCELLANEOUS
Ref.No. PartNo. Description
CN101 8745503006 CONN, XH, 6P
CN801 8245258000 CONN, PLJACK, DC-INLET
J101~401 8245339012 CONN, PHONE, YKB21-5011
J501, 601 8245339013 CONN, PH0NES, YKB21-5009
J602 8245339013 CONN, PH0NES, YKB21-5009
S101 8253464000 SW, SLIDE, SSSF3-2
S801 8253467000 SW, SS010-P022MAM-PA9
W101 8277475013 CORDASSY, SCN-XH, 6P, 130
W801 8277476020 CORD, M3-SIN*200, BLK
W802 8277476015 CORD, 1P*150, BLK
12
Page 13
MN-12 MAIN/METER PCBs PATTERN DRAWING
Q101
R116
E
R115
D101
R120
R117
R119
Q102
VR104
R107
E
R118
C110
J101
R112
B
R106
C108
R113
C111
B
D653
D652
VR103
C109
VR106
VR105
VR101
R101
VR102
R651
PCB#5238-10A
C207
C105
R108
R106
R114
R110
R111
Q201
EB
R104
R216
R122
C210
C114
R121
C102
R103
C112
U101
C116
R123
R124
C104
C206
U201
C106
VR203
R206
R209
R208
C213
C113
R109
C107
R215
R219
R217
Q202
R218
R102
C101
J201 J301
C115
C208 C209
VR206
R212
VR205
R213
VR201
C211
D201
R220
EB
R201
VR202
C205
VR204
R204
R222
C214
R221
U102
C216
R223
C204
R207
R211
C202
R205
R214
R210
Q301
R316
C310
R202
R203
C212
EEB
Q302
C201
C215
R224
R315
R319
R317
C655
C660
R305
R307
R312
R313
R320
R318
VR303
C308 C309
VR306
VR305
VR301
C311
D301
B
R301
VR302
C305
VR304
R308
R311
R304
R322
C314
C302
R303
C312
C316
R323
C304
C407
U401
C313
R306
C306
C307
R314
R310
Q401
EB
R416
C410
R321
U301
C315
R324
C406
R406
R409
R408
C413
R309
C409
R412
R413
R415
D401
R420
R419
R417
Q402
EB
R418
R302
C301
J401
C411
VR403
VR406
VR405
VR301
R401
VR402
C405
C408
J603
VR494
R411
R404
R422
C414
C402
R403
R423
C404
R405
R407
R414
R410
R421
1
R402
C412
U302
C416
R424
C415
C659
C401
J501
S651
3
C651
U602
R504
R503
W802
C654
W801
VR503
VR502
VR501
R655
R654
R653
U601
U501
C501
R652
R509
C657
R502R501
R608
R508
C502
J502
R605
C603
C503
R505
C652
R506
D655
D654
R606
C601
C662
R656
R604
R603
R607
R507
J601
J901
R658
VR603
VR602
E
R657
Q651
C663
VR601
C602
B
J902
R609
R602R601
R355
C352
J602
R352
R351
Q351
E
C701
R354
R704
R703
R356
U351
J701
B
C351
R353
C353
J351
C354
VR703
VR702
Q151
E
C152
U701
VR701
R154
R156
B
R709
R702R701
R808
R708
C702
J702
J151
J251
R155
C554
C551
VR803
R804
R803
VR802
R805
R806
R807
C803
C703
R705
R706
R707
C801 C802
J801
R255
E
C555
VR801
R256
C252
Q251
R254
B
R809
R802R801
C653
C658
J802
C553
W501
R151
C552
1
U251
R251
C456
R454
C251
R153
C151
U151
C455
C451
C452
R253
C253
C153
U451
R453
PCB#5238-10B
CN501
C902
C901
R252
C254
C154
R452
C454
C453
R460
1
R553
R152
R455
R451
J451
R552
R901
R456
D565
D561
D562
D563
D564
VR151
U551
D551
D552
D553
D554
VR901
VR451
R459
R457
R458
R551
D555
R902
13
MN-12/04
Page 14
14
MN-12/04
MN-04 MAIN/SELECTOR PCBs PATTERN DRAWING
Page 15
4. CIRCUIT & BLOCK DIAGRAMS
MN-12 CIRCUIT DIAGRAM
C105
C102
10p
R103
220k
C101
R101
INPUT
CH1
-60~-10dBV
CH2
-60~-10dBV
CH3
-60~-10dBV
CH4
-60~-10dBV
AUX RTN
L
-20dBV
R
-20dBV
22uF
100
2
3
1
J101
2
3
1
J201
2
3
1
J301
2
3
1
J401
2
3
1
J901
2
3
1
J902
AGND
5
4570
6
R102
100k
C112
100p
+VCC
R118
Q102
22k
B1237
R120
1k
R117
22k
C110
D101
R119
PEAK
470k
C202
10p
R203
220k
C201
R201
22uF
100
5
4570
6
R202
100k
C212
100p
+VCC
R218
Q202
22k
B1237
R220
1k
R217
22k
C210
D201
R219
PEAK
470k
C302
10p
R303
220k
C301
R301
22uF
100
5
6
4570
R302
100k
C312
100p
+VCC
R318
Q302
22k
B1237
R320
1k
R317
22k
C310
1u
D301
R319
PEAK
470k
C402
10p
R403
220k
C401
R401
22uF
100
5
4570
6
R402
100k
C412
100p
+VCC
R418
22k
Q402
R417
B1237
22k
R420
1k
C410
1u
D401
R419
PEAK
470k
C901
22uF
C902
22uF
TRIM
VR101
20kC
VR102
20kA
C114
1
47uF
R121
100
7
U101B
C111
10uF
Q101
D1858
1u
R221
100
7
U102B
Q201
D1858
1u
R321
100
7
U301B
Q301
D1858
R421
100
7
U302B
Q401
D1858
3
R123
2
R122
100k
R115
10k
R116
2.4k
-VCC
C214
47uF
R222
100k
C211
10uF
R215
10k
R216
2.4k
-VCC
C314
47uF
R322
100k
C311
10uF
R315
10k
R316
2.4k
-VCC
C414
47uF
R422
100k
C411
10uF
R415
10k
R416
2.4k
-VCC
15k
2
2
3
C104
45
3
C116
1
22uF
100p
U101A
INPUT LEVEL
R104
47
TRIM
VR201
20kC
VR202
20kA
1
3
R223
2
15k
2
2
3
C204
45
3
1
C216
22uF
100p
R204
47
TRIM
VR301
20kC
1
2
3
R304
47
TRIM
VR401
20kC
1
2
3
R404
47
U102A
INPUT LEVEL
VR302
3
20kA
R323
15k
2
2
3
C316
45
C304
1
100p
22uF
U301A
INPUT LEVEL
VR402
20kA
3
R423
15k
2
2
3
C416
45
C404
1
100p
22uF
U302A
INPUT LEVEL
35
2
AUX RTN
1
67
22p
C115
VR103
10p
50kB
R106
5
R105
5.1k
5.1k
4
3
R124
56k
+VCC
4570
-VCC
C215
10p
R224
56k
+VCC
4570
-VCC
C315
10p
R324
56k
+VCC
4570
-VCC
C415
10p
R424
56k
+VCC
4570
-VCC
4
VR901
20kAA
1
C107
EQ.H
2
10p
+VCC
C106
.0033uF
8
1
4
8
1
4
8
1
4
8
1
4
R205
5.1k
R207
R305
5.1k
R307
R405
5.1k
R407
R107
15k
.0033uF
.0033uF
.0033uF
8
2
1
4570
3
4
C113
100p
U201A
R109
10k
C108
.01uF
2
3
4
5
VR104
50kB
C205
22p
VR203
50kB
3
EQ.H
2
C206
6
5
C213
100p
R209
10k
C208
.01uF
2
15k
3
4
5
VR204
50kB
EQ.L
C305
22p
VR303
50kB
3
EQ.H
2
C306
2
3
C313
100p
U401A
R309
10k
C308
.01uF
2
15k
3
4
5
VR304
50kB
C405
22p
VR403
50kB
3
EQ.H
2
C406
6
5
C413
100p
R409
10k
C408
.01uF
2
15k
3
4
5
VR404
50kB
R901
20k
R902
20k
45
-VCC
AUX
C109
.01uF
R108
15k
1
EQ.L
R206
5
5.1k
4
1
C207
10p
VR206
50kA
7
4570
U201B
45
AUX
C209
.01uF
R208
15k
1
R306
5
5.1k
4
1
C307
10p
+VCC
VR306
50kA
8
1
4570
4
45
-VCC
AUX
C309
.01uF
R308
15k
1
EQ.L
R406
5
5.1k
4
1
C407
10p
VR406
50kA
7
4570
45
U401B
AUX
C409
.01uF
R408
15k
1
EQ.L
R111
R110
PAN
30k
24k
3
VR105
2
50kB
R113
R112
30k
24k
1
45
3
2
VR106
R114
50kA
20k
1
R210
R211
PAN
24k
30k
3
VR205
2
50kB
R213
R212
1
45
30k
24k
3
2
R214
20k
1
STEREO
INPUT
CH5 L
(MONO)
-10dBV
R311
R310
PAN
30k
24k
3
VR305
2
50kB
R313
R312
30k
24k
1
45
3
2
R314
20k
1
R411
R410
PAN
30k
24k
3
VR405
2
50kB
R412
R413
24k
1
45
3
1
30k
2
R414
20k
CH10 R
-10dBV
CH11 L
(MONO)
-10dBV
CH12 R
-10dBV
CH6 R
-10dBV
CH7 L
(MONO)
-10dBV
CH8 R
-10dBV
CH9 L
(MONO)
-10dBV
C501
22uF
2
3
1
J501
2
3
1
J502
2
3
1
J601
2
3
1
J602
2
3
1
J701
2
3
1
J702
2
3
1
J801
2
3
1
J802
INPUT LEVEL
3
R501
R502
PAN
10K
2
VR501A
20kAA
1
6
C502
5
22uF
VR501B
20kAA
4
C601
22uF
INPUT LEVEL
3
2
VR601A
20kAA
1
6
C602
5
22uF
VR601B
20kAA
4
C701
22uF
INPUT LEVEL
3
2
VR701A
20kAA
1
6
C702
5
22uF
VR701B
20kAA
4
C801
22uF
INPUT LEVEL
3
2
VR801A
20kAA
1
6
C802
5
22uF
VR801B
20kAA
4
20k
3
VR502
2
50kB
1
45
R503
R504
10k
20k
R508 47k
R505
47k
+VCC
R506
8
47k
2
C503
3
100p
U501A
R507
47k
R601
PAN
10K
3
2
1
R603
10k
R605
47k
R606
47k
C603
100p
R607
47k
R701
PAN
10K
3
2
1
R703
10k
R708 47k
R705
47k
R706
47k
2
C703
3
100p
R707
U701A
47k
R801
PAN
10K
3
2
1
R803
10k
R805
47k
R806
47k
6
C803
5
100p
R807
47k
AUX
1
4570
3
R509
20k
VR503
4
2
50kA
-VCC
1
45
R602
20k
VR602
50kB
45
R604
20k
R608
47k
6
AUX
7
4570
5
45
4570
45
R808
47k
4570
U701B
3
R609
20k
2
VR603
U501B
50kA
1
45
R702
20k
VR702
50kB
R704
20k
+VCC
8
AUX
1
3
R709
20k
VR703
4
2
50kA
-VCC
1
45
R802
20k
VR802
50kB
R804
20k
AUX
7
3
R809
20k
VR803
2
50kA
1
45
BAR GRAPH
R551
15k
DC IN
(12V 600mA)
1
1
6
5
V
O
C
U
C
T
A
5
4
A
A
R552
1
2
15k
D561
D563
D562
+
+
6
3
d
d
B
B
I
N
A
3
A
0
d
B
1
4
3
D564
J603
1
3
2
1
3
O
I
U
N
T
B
B
IR2E27
2
1
A
A
4
D565
-
-
5
1
d
0
B
d
B
C153
100p
C253
100p
2
3
C353
100p
D553
D551
1
1
1
2
1
0
5
4
B
B
U551
1
2
B
B
5
6
7
POWER SW
5
S651B
S651A
2
W8011W802
1
R151
68k
+VCC
8
2
1
4570
3
4
-VCC
U151A
R251
68k
6
7
4570
5
U151B
VR151A
20kAA
R351
20k
+VCC
8
1
4570
U351A
4
-VCC
CN501
1
2
3
4
5
6
R553
47
D555
D554
9
3
B
G
N
D
8
4
6
3
1
R651
3.3k
3
D652
AGND
MASTER LEVEL
VR151B
20kAA
6
5
4
3
R252
15k
2
1
C254
100p
R352
20k
U602
78M12
IN
OUT
G
2
C651
470uF
D653
C151
10p
R153
56k
+VCC
R152
15k
C154
100p
6
5
C354
100p
4.7uF
W501
1
2
3
4
5
6
C552
4.7uF
1
R653
10k
C152
8
22uF
2
1
4570
3
U251A
4
-VCC
C251
10p
R253
56k
7
4570
U251B
C351
10p
R353
20k
6
7
4570
5
U351B
C554
R155
33k
C555
R255
4.7uF
33k
214
C551
C553
100uF
4.7uF
-VCC
470uF
R652
10k
R654
2
8
47
1
4570
3
U601A
4
C657
470uF
U601B
R655
6
47
7
4558
5
C252
22uF
PHONES
35
67
+VCC
C652
AGND
-VCC
R154
1k
R156
R254
1k
R256
C352
R355
22uF
1k
R356
3.3k
R354
22k
C455
22p
R453
27k
+VCC
R451
3.3k
VR451
20kAA
R452
3.3k
C653
22uF
C658
22uF
C451
8
470uF
2
1
4556
3
C453
100p
4
U451A
R455
3.3k
-VCC
C456
22p
R454
27k
C452
470uF
6
7
4556
5
C454
100p
U451B
R458
R456
10k
3.3k
C654
22uF
C655
22uF
R656
470k
D654
R657
C662
4.7uF
C660
22uF
C659
22uF
3.3k
3.3k
D655
47k
Q151
D1858
Q251
D1858
Q351
D1858
R459
R457
10k
R460
22
1SR139-400
Q651
B1237
R658
47k
MASTER OUT
J151
2
3
L
1
-10dBV
J251
2
3
R
1
-10dBV
J351
2
AUX
3
SEND
1
-10dBV
J451
22
2
HEAD
3
PHONE
1
32ohm
AGND
C663
470uF
MN-12/04
15
Page 16
16
MN-12/04
MN-04 CIRCUIT DIAGRAM
INPUT
-60~-10dBv
CH2
-10dBv
CH3
-10dBv
CH4
-10dBv
C502
C501
100pF
100pF
C506
C606
10pF
R501
68k
MASTER LEVEL
+B
VR501A
8
2
3
C602
10pF
6
5
1
3
2
1
1
R601
20kAA
1
4570
-B
68k
4570
4
U501B
B1237
D703
PEAK
U501A
Q702
7
1
4
S801B
VR501B
20kAA
+B
-B
AGND
W801
SIN-3M
AGND
R706
2.2k
3
2
1
6
5
4
R704
47k
R703
47k
R705
1M
2
3
7
S801A
5
6
8
R812
270
C806
470uF
W802
SIN-L150
1
AGND
R105
R104
0
330k
C103
J101
2
CH1
3
1
R117
47k
R116
2
3
1
J201
2
3
1
J301
2
3
1
J401
AGND
D1858
2.2k
Q102
C201
22uF
C301
22uF
C401
22uF
22uF
2.2k
C106
R102
47k
R103
1k
+B
D104
1SS136
R114
2.2k
R113
1k
Q101
D1858
AGND
R115
10k
C107
+B
AGND
0.47uF
U101B
R123
1SS136
7
4570
100k
6
5
100uF
C101
R101
100pF
D102
AGND
8
U101A
2
1
4570
3
4
-B
D101
1SS136
R111
R112
2.2k
10k
C105
0.47uF
AGND
+B
R119
2.2k
R120
47k
R121
R122
2.2k
15k
Q103
B1237
R118
100k
-B
0
+B
C102
1
2
3
4
5
6
W101
W202
1
INPUT LEVEL
VR201
20kA
INPUT LEVEL
VR301
INPUT LEVEL
VR401
20kA
INPUT LEVEL
C104
22uF
VR101
20kA
20kA
3
1
1
2
3
4
5
6
CN101
W102
1
PCB.523720B
3
2
1
3
2
1
3
2
1
PAN
R107
10k
VR102
50kB
R109
2
10k
SML1216W
1
S101B
6
R207
10k
VR202
50kB
R209
10k
R307
10k
VR302
50kB
R309
10k
R407
10k
VR402
50kB
R409
10k
D103
1
3 24
2
1
0
87 9
45
S101A
R108
20k
3
2
R110
1
20k
5
3
R208
PAN
20k
3
2
R210
1
45
20k
R308
PAN
20k
3
2
R310
45
1
20k
R408
PAN
20k
3
2
R410
20k
1
45
PIN A
CN802-
PIN A
22uF
C601
22uF
CN801
DCIN
CN802+
R502
R602
C503
10pF
R503
56k
+B
27k
2
8
1
4556
3
U502A
4
C507
100pF
-B
C603
10pF
R603
100pF
C701
0.47uF
Q803
D1858
C607
6
5
R801
C801
470uF
2.2k
Q701
D1858
4556
POWER
Q801
D1858
D802
56k
U502B
7
R701
15k
R702
47k
R802
20k
R804
2.2k
27k
1
R803
2.2k
C604
22uF
D702
1SS136
D701
R805
20k
R806
20k
1SS136
2
3
6
5
C504
22uF
R505
1k
R504
20k
R605
1k
R604
20k
C505
100uF
C605
100uF
C802
470uF
8
R807
68
1
4570
U801A
4
R808
68
7
4570
U801B
R506
R606
1k
1k
470uF
C803
D1858
Q601
D1858
R507
22
R607
22
R508 20k
R608 20k
+B
D803
1SS136
AGND
-B
PCB.523720A
Q501
R809
1M
R810
47k
C804
22uF
AGND
J501
J601
J602
1SS136
Q802
B1237
D804
MASTER OUT
2
3
1
2
3
1
2
3
1
R811
47k
L
-10dBv
R
-10dBv-10dBv
PHONES OUT
C805
470uF
Page 17
MN-12 BLOCK DIAGRAM
17
MN-12/04
Page 18
18
MN-12/04
MN-04 BLOCK DIAGRAM
CH1
-10dBV
-60dBV
CH2
-10dBV
CH3
-10dBV
CH4
-10dBV
COMP
ALC
INPUT LEVEL
INPUT LEVEL
INPUT LEVEL
INPUT LEVEL
STEREO BUSS
LR
PAN
PAN
PAN
PAN
PEAK LED
L
STEREO OUT
-10dBV
R
MASTER
PHONES
Page 19
MN-12/04
19
Page 20
MN-12/04
20
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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