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Yamaha Mg12.4 Service Manual

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Page 101

MG16/4
28
REF NO.PART NO. DESCRIPTIONREMARKSQTY
:  New PartsRANK:  Japan only
RANKRE07 Carbon Resistor (chip) 36.0K 63M J RECT.01
RE08 Carbon Resistor (chip) 36.0K 63M J RECT.01
RE09 Carbon Resistor (chip) 220.0 63M J RECT.01
RE10 Carbon Resistor (chip) 220.0 63M J RECT.01
RE11Carbon Resistor (chip) 2.4K 63M J RECT.01
RE12 Carbon Resistor (chip) 2.4K 63M J RECT.01
RE13 Carbon Resistor (chip) 10.0K 63M J RECT.01
RE14 Carbon Resistor (chip) 10.0K 63M J RECT.01
RE15 Carbon Resistor (chip) 100.0K 63M J...

Page 102

MG16/4
29
REF NO.PART NO. DESCRIPTIONREMARKSQTY
:  New PartsRANK:  Japan only
RANKRG50 Carbon Resistor (chip) 18.0K D 1608
RG51 Carbon Resistor (chip) 18.0K D 1608
RG52 Carbon Resistor (chip) 75.0 63M J RECT.01
-G55 Carbon Resistor (chip) 75.0 63M J RECT.01
RG56 Carbon Resistor (chip) 100.0K 63M J RECT.01
-G59 Carbon Resistor (chip) 100.0K 63M J RECT.01
RG62 Carbon Resistor (chip) 22.0K 63M J RECT.01
RG63 Carbon Resistor (chip) 22.0K 63M J RECT.01
RH01 Carbon Resistor (chip) 100.0K 63M J RECT.01
RH02...

Page 103

MG16/4
30
REF NO.PART NO. DESCRIPTIONREMARKSQTY
:  New PartsRANK:  Japan only
RANKSW506 Push Switch PS-22E85L52 2TR IN PHANTOM 01
SW601 Push Switch PS-22E85L52 HPF 6 01
SW602 Push Switch PS-22E85L52 PRE 6 01
SW603 Push Switch PS-42E85L(3.3X3.3) ST 6 01
SW604 Push Switch PS-22E85L52 1-2 6 01
SW605 Push Switch PS-22E85L52 PFL 6 01
SW701 Push Switch PS-22E85L52 HPF 7 01
SW702 Push Switch PS-22E85L52 PRE 7 01
SW703 Push Switch PS-42E85L(3.3X3.3) ST 7 01
SW704 Push Switch PS-22E85L52 1-2 7 01
SW705 Push...

Page 104

MG16/4
31
VR502 Rotary Variable Resistor B 50.0K XV09213YNP LOW 5 03
VR503 Rotary Variable Resistor B 50.0K XV09213YNP MID 5 03
VR504 Rotary Variable Resistor B 50.0K XV09213YNP HIGH 5 03
VR505 Slide Variable Resistor 1SY6008 CH FADER 5 04
VR506 Rotary Variable  Resistor XV012313Y 15A15C20 PAN  5 04
VR507 Rotary Variable Resistor B 20.0K XV09213YNP AUX1 5 03
VR508 Rotary Variable Resistor B 20.0K XV09213YNP AUX2 5 03
VR601 Rotary Variable Resistor RD 10.0K XV09213YN GAIN 6 03
VR602 Rotary Variable...

Page 105

MG16/4
32
REF NO.PART NO. DESCRIPTIONREMARKSQTY
:  New PartsRANK:  Japan only
RANK
æ
¼Ê
W101 Connector Assembly GND 1P (WE78460)
*Circuit Board PS (WE61240)(X6343B0)
50 Heat Sink(V966100)
60 Bind Head Tapping Screw-B 3.0X8 MFZN2W3501
65 Bind Head Tapping Screw-B 3.0X8 MFZN2W3301
70 Silicon Grease G-746(0412125)
C01 Electrolytic Cap. 100.0 100.0V RX TP
C02 Electrolytic Cap. 100.0 100.0V RX TP
*C03 Ceramic Capacitor-E 4700P 1KV Z RX TP
*C04 Ceramic Capacitor-E 4700P 1KV Z RX TP
C05 Electrolytic Cap. 2200...

Page 106

 CONTENTS
BLOCK DIAGRAM & LEVEL DIAGRAM
................................ 3
OVERALL CIRCUIT DIAGRAM
MAIN .............................................................................. 4 – 8
JACK 1/2 ........................................................................ 9, 10
JACK 2/2 ............................................................................ 10
PS ....................................................................................... 11
CIRCUIT DIAGRAM
MIXING CONSOLE
,
Note : See parts...

Page 107

ABCDE FGH ABCDE FGH
1
2
3
4
5
6
MG12/4
MG16/4
3
 BLOCK DIAGRAM & LEVEL DIAGRAM
ST OUT
JK101,271,371,471
JK571,671,771,871
JK172,272,372,472
JK572,672,772,872IC101,201,301,401
IC501,601,701,801
IC102,302,502,702
JK173,273,373,473
JK573,673,773,873IC103,303,503,703
JK971
JKA71
JK972
JKA72
JK973
JKA73 IC901,ICA01
IC902a,ICA02a
IC903a,ICA03a
IC902b,ICA02b
IC903b,ICA03bIC904a,ICA04a
IC904b,ICA04b
JKB72,JKC72ICB01a
ICC01a
ICB01b
ICC01bICB02a,ICC02a
ICB02b,ICC02bICB03a,ICC03a
ICB03b,ICC03b
ICD02a
ICD02b JKD71...

Page 108

ABCDE FGH
ABCDE FGH
1
2
3
4
5
6
MG12/4
MG16/4
4
(to P.8-E1)
(to P.8-E2)
(to P.8-A1)
(to P.8-A2)
(to P.8-A3)
(to P.8-A4)
(to P.8-E2)
(to P.8-E3)
(to P.8-E3)
OP AMP
OP AMP
OP AMP
OP AMP OP AMP
OP AMP
OP AMP
OP AMP OP AMP
OP AMP
OP AMP
OP AMP OP AMP
OP AMP
OP AMP
OP AMP
to JACK 1/2-CN171   (to P.9-B3)to JACK 1/2-CN371   (to P.9-F3)
MG16/4 CH1
MG16/4 CH2
MG16/4 CH3
MG16/4 CH4
 OVERALL CIRCUIT DIAGRAM 1/8 MAIN
28CC1-8834988-1
Note : See parts list for details of circuit board component parts.
 : Ceramic...

Page 109

ABCDE FGH ABCDE FGH
1
2
3
4
5
6
MG12/4
MG16/4
5
(to P.9-A1)
(to P.9-A4)
(to P.10-B1)to JACK 1/2-CN571   (to P.9-B1)to JACK 1/2-CN771   (to P.9-F1)
OP AMP
OP AMP
OP AMP
OP AMPOP AMP
OP AMP
OP AMP
OP AMPOP AMP
OP AMP
OP AMP
OP AMPOP AMP
OP AMP
OP AMP
OP AMP
(to P.8-E1)
(to P.8-E2)
(to P.8-A1)
(to P.8-A2)
(to P.8-A3)
(to P.8-A4)
(to P.8-E2)
(to P.8-E3)
(to P.8-E3)
MG12/4 CH1
MG16/4 CH5
MG12/4 CH2
MG16/4 CH6
MG12/4 CH3
MG16/4 CH7
MG12/4 CH4
MG16/4 CH8
 OVERALL CIRCUIT DIAGRAM 2/8 MAIN
28CC1-8834988-2
 :...

Page 110

ABCDE FGH
ABCDE FGH
1
2
3
4
5
6
MG12/4
MG16/4
6
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMPOP AMP
OP AMP
OP AMP
OP AMP
to JACK 1/2-CN971   (to P.10-C2)to JACK 1/2-CNA71   (to P.10-C4)
OP AMP
OP AMP
OP AMP
OP AMP
(to P.8-E1)
(to P.8-E2)
(to P.8-A1)
(to P.8-A2)
(to P.8-A3)
(to P.8-E2)
(to P.8-E3)
(to P.8-A4)
(to P.7-G1)
(to P.7-G1)
MG12/4 CH5(L)/CH6(R)
MG16/4 CH9(L)/CH10(R)
MG12/4 CH7(L)/CH8(R)
MG16/4 CH11(L)/CH12(R)
 OVERALL CIRCUIT DIAGRAM 3/8 MAIN
28CC1-8834988-3
 : Ceramic Capacitor :...
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