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9

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8

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6

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5

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4

3

3

2

2

1

1

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

K

K

L

L

M

M

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N

O

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P

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Q

of

Filename:

PCB#

Sheet

4

1

Product

Date:

Rev:

YsType:CSA#

M1237-1V01sch.sch2002

M1237

CH-1 & CH-2  INPUT

Fri Apr 07, 2006

V1.01

K2

of

Filename:

PCB#

Sheet

4

1

Product

Date:

Rev:

YsType:CSA#

M1237-1V01sch.sch2002

M1237

CH-1 & CH-2  INPUT

Fri Apr 07, 2006

V1.01

K2

D1

4148

1/4W

1M

R7

.

4148

D57

1/4W

39K

R19

.

4148

D14

CHANNEL2

CHANNEL1

1/4W

.

10K0

R38

R57

1/4W

0.1%

475R0

R254

1/4W

.

47K

D31

4148

C149

50V

680P

C17

50V

22N

C154

63V

4U7

1/4W

.

1K

R54

C124

100V

22N

W13:B

6

C95

63V

330N

R34

1/4W

.

3K

1/4W

.

10K

R129

C101

400V

1N

BYPASS

C92

63V

4U7

C89

63V

4U7

1/4W

.

1K

R219

1/4W

1M

R59

.

1/4W

.

10K0

R36

R67

1/4W

0.1%

475R0

1/4W

150K

R253

.

4148

D56

C74

63V

4U7

100V

C2

220P

R2

1/8W

FLMP

475R

1/4W

R5

1M

.

C1

220P

100V

W4

R61

1/4W

.

4K99

C42

100V

220P

R68

1/4W

.

4K99

C24

100V

220P

C156

50V

100N

1/4W

MINI

470R

R153

8

V+

4

V-

U13:C

D30

4148

R242

1/4W

MINI

1K0

R261

1/4W

.

1K

1/4W

1K0

R20

MINI

R264

1/4W

.

4K7

C159

50V

33N

1/4W

20K0

R257

MINI

1/4W

20K

R30

.

R27

1/4W

.

10K0

160V

C15

10U

R17

1/4W

.

180K

1/4W

MINI

470R

R63

R262

1/4W

.

3K3

C164

50V

680P

R268

1/4W

.

3K3

R265

1/4W

.

4K7

100V

C162

100P

1/4W

2K21

R33

.

50V

C23

22U

1/4W

113K

R23

.

C9

50V

100N

4148

D7

4148

D5

1/4W

.

3K3

R56

1/4W

MINI

10K

R149

1/4W

.

1K

R43

50V

C33

22U

C32

100V

22N

1/4W

620K

R31

MINI

R49

1/4W

MINI

100K

1/4W

1K

R21

MINI

RED  

LD1

.

6405

R232

1/4W

.

3K3

R234

1/4W

.

3K3

R243

1/4W

.

4K7

C127

63V

4U7

1/4W

.

20K

R76

1/4W

.

20K

R150

R47

1/4W

.

49K9

R244

1/4W

.

3K3

R246

1/4W

.

3K3

R247

1/4W

.

4K7

R245

1/4W

.

100K

1/4W

20K0

R267

MINI

C86

63V

470N

1/4W

2K2

R121

.

R110

1/4W

.

3K

C82

100V

39N

W13:E

6

W13:C

6

W13:A

6

W13:F

6

W13:D

6

R248

1/4W

.

2K

U3:D

MC33079P

1/4W

10K

R117

.

4

V+

11

V-

U2:E

R114

1/4W

.

10K

C84

400V

1N

U14:C

MC33079P

C103

63V

4U7

4

V+

11

V-

U3:E

R123

1/4W

.

10K

C87

63V

2U2

C160

63V

4U7

4148

D6

R70

1/4W

.

10K0

R65

1/4W

.

10K0

U14:A

MC33079P

R241

1/4W

.

2K

1/4W

.

1K

R55

R134

1/4W

.

10K

R125

1/4W

.

10K

C96

100V

10N

R119

1/4W

.

2K

1/4W

20K

R120

.

C88

63V

150N

4148

D11

1/4W

100K

R130

.

R74

1/4W

.

4K99

R240

1/4W

.

1K

1/4W

100K

R169

.

63V

C4

4U7

LIVE

R131

1/4W

.

2K

C100

100V

100N

C90

63V

4U7

1/4W

1K

R133

MINI

RED  

LD2

6405

1/4W

100K

R168

.

1/4W

100K

R239

.

ORGAN

1/4W

100K

R165

.

R

L

GOLD .475

J9

3460

4148

D8

+1/4

J11:A

CH-2 I/P

XLR/1/4in

S

T

R

-

-

-

J1

CH-1 I/P 1

S

T

R

-

-

-

J2

CH-1 I/P 2

R4

1/8W

FLMP

475R

Q19

5106

MPSA63

TO92

U5:A

NE5532N

8

V+

4

V-

U5:C

U5:B

NE5532N

U1:A

NE5532N

8

V+

4

V-

U1:C

U1:B

NE5532N

R255

1/4W

MINI

1K0

R260

1/4W

MINI

2K

1/4W

1K0

R46

MINI

C157

50V

33N

50V

C19

680P

1/4W

470R

R10

.

M

5C

P3:A

4452

10K

CH-2 GAIN

V1:B

Val

2X_TRIODE_HCT

8

V+

4

V-

U10:C

50V

C35

470P

S1:B

I/P SELECTOR

S1:A

1/4W

1M

R28

.

1/4W

.

49K9

R113

50V

C166

33N

C150

50V

680P

100V

C83

100N

250V

C85

4N7

R256

1/4W

.

1K

C98

100V

470P

250V

C102

4N7

R73

1/4W

.

4K99

4148

D12

1/4W

100K

R167

.

S3:B

3393

VOICING SELECT

4

V+

11

V-

U14:E

1/4W

.

249R

R32

C163

63V

4U7

C186

50V

33N

C53

100V

22N

C97

63V

470N

R72

1/4W

.

10K0

R60

1/4W

.

10K0

100V

C44

220P

1/4W

.

249R

R35

R263

1/4W

.

3K3

R269

1/4W

.

3K3

RED  

LD7

.

6405

U13:B

NE5532N

U13:A

NE5532N

1/4W

.

3K3

R152

R218

1/4W

.

1K

63V

C13

4U7

R3

1/4W

.

10K0

R37

1/4W

.

10K0

R300

1/4W

.

1K8

C167

275V

22N

M

4453

P8:A

50K

B

TREBLE

C187

50V

680P

M

P9:A

50K

MID 4453

B

1/4W

.

3K3

R11

C165

100V

33N

U6:A

NE5532N

M

P10:A

50K

BASS

B

4453

U8:B

MC33078P

1/4W

100K

R98

.

U10:A

MC33078P

1/4W

2K21

R53

.

C21

63V

2U2

R24

1/4W

.

113K

1/4W

620K

R29

MINI

1/4W

100K

R52

.

Q1

5106

TO92

MPSA63

RIBBON CABLE
TO POWER AMP

1/4W

.

20K

R122

100V

C161

100P

R137

1/4W

.

2K

1/4W

.

1K

R62

U3:C

MC33079P

R128

1/4W

.

3K

R138

1/4W

.

2K

C94

63V

330N

U3:A

MC33079P

R124

1/4W

.

10K

R127

1/4W

.

20K

1/4W

5K1

R132

.

C99

200V

2N2

U2:A

MC33079P

U2:D

MC33079P

R111

1/4W

.

3K

R115

1/4W

.

2K

U2:B

MC33079P

Q2

5106

MPSA63

TO92

R71

1/4W

.

249R

STUDIO

1/4W

100K

R166

.

PIANO

1/4W

.

R75

1M

220P

100V

C45

R259

1/4W

MINI

2K

R6

1/4W

.

10K0

RED

W3

120VDC

M

5C

10K

4452

P1:A

CH-1 GAIN

1/4W

.

3K3

R154

8

V+

4

V-

U8:C

8

V+

4

V-

U6:C

U8:A

MC33078P

R249

1/4W

.

100K

50V

C158

33N

1/4W

100K

R22

MINI

V1:A

Val

2X_TRIODE_HCT

U4:A

NE5532N

8

V+

4

V-

U4:C

1/4W

1M

R25

.

M

5C

P4:A

10K

4452

MASTER

U14:B

MC33079P

1/4W

.

220K

R151

U10:B

MC33078P

R112

1/4W

.

3K

R118

1/4W

.

2K

U2:C

MC33079P

S

T

R

-

-

-

J4

BAL-LINE OUT

R66

1/4W

.

249R

100N

50V

C72

3393

S3:A

VOICING SELECT

U6:B

NE5532N

M

4453

P7:A

50K

B

TREBLE

U14:D

MC33079P

S

T

R

J11:B

XLR/1/4in

CH-2 I/P

M

4453

P6:A

50K

B

MID

M

P5:A

50K

BASS 4453

B

U4:B

NE5532N

U3:B

MC33079P

Summary of Contents for Keymaster K2

Page 1: ...A Voice 716 297 2920 Fax 716 297 3689 WORLD HEADQUARTERS WEB ACCESS http www yorkville com CANADA Yorkville Sound 550 Granite Court Pickering Ontario L1W 3Y8 CANADA Voice 905 837 8481 Fax 905 837 8746 Quality and Innovation Since 1963 Printed in Canada SERVICE MANUAL K2 MODEL TYPE YS1044 ...

Page 2: ...CTRIQUE N ENLEVEZ PAS LE COUVERT OU LE PANNEAU ARRIERE NE CONTIENT AUCUNE PIECE REPARABLE PAR L UTILISATEUR CONSULTEZ UN TECHNICIEN QUALIFIE POUR L ENTRETIENT INSTRUCTIONS RELATIVES AU RISQUE DE FEU CHOC ÉLECTRIQUE OU BLESSURES AUX PERSONNES Veuillez Lire le Manuel Il contient des informations qui devraient êtres comprises avant l opération de votre appareil Conservez S V P ces instructions pour c...

Page 3: ...ND MS ZINC 10 5204 _10N 100V 10 CAP T R RAD 2 FLM 1 8800 6 32 KEPS NUT ZINC 18 8761 6 32 X 1 2 PAN PHIL MS ZINC CLEAR 4 5301 _12N 50V 10 CAP T R BEAD X7R 1 8898 1 4 20 CAGE NUT C79 98142027 4 8806 6 32 X 1 2 PAN PH TAPTITE JS500 5 5210 _22N 100V 10 CAP T R RAD 2 FLM 3 8797 5 16 18 KEPS NUT JS500 1 8876 6 X 1 1 2 PAN PH TYPE A JS500 BLK 4 5304 _22N 50V 10 CAP T R BEAD X7R 1 3823 TO 220 THERMO PAD S...

Page 4: ...IVE R131 1 4W 2K C100 100V 100N C90 63V 4U7 1 4W 1K R133 MINI RED LD2 6405 1 4W 100K R168 1 4W 100K R239 ORGAN 1 4W 100K R165 R L GOLD 475 J9 3460 4148 D8 1 4 J11 A CH 2 I P XLR 1 4in S T R J1 CH 1 I P 1 S T R J2 CH 1 I P 2 R4 1 8W FLMP 475R Q19 5106 MPSA63 TO92 U5 A NE5532N 8 V 4 V U5 C U5 B NE5532N U1 A NE5532N 8 V 4 V U1 C U1 B NE5532N R255 1 4W MINI 1K0 R260 1 4W MINI 2K 1 4W 1K0 R46 MINI C157...

Page 5: ...1 1U 100V C11 100N 100V C43 100N S G TO 92 2N5638 D B E TO 92 BC560C C BC550C C B TO 126 MJE350 MJE340 BD238 MJE270 BD139 BD140 E BD237 MJE271 W7 BLU R42 1 0W FLMP 1R AG AMP GROUND IG INPUT GROUND SG SIGNAL GROUND NORTH AMERICAN POWER SUPPLY GRN CHASSIS GND W26 Thermal Breaker SCH_BREAKER S6 W30 SW BLK 1 4W 2K2 R58 BLU W8 F2 1 AMP SB 1 AMP SB F3 4007 D3 C38 160V 220U 63V C22 470N 100V C26 100N 100...

Page 6: ... WOOFER BLK 15 W 8R2 R15 50V C58 220N R104 1 4W 1K MID W25 BRN 6U8 140V C14 R107 1 4W 47K W44 WHT 4 75 8R 30W 1 2 VTL5C8 U11 A 6860 Q9 5102 BC560C TO92 D19 0A2 BAT85 Q13 5102 BC560C TO92 1 4W 4R7 R79 1 4W 150R R82 4148 D13 M P2 10K 1B LIN 4454 MONITOR GAIN BD238 6788 Q16 TO126 R45 1 4W 20K 5 0W 0R18 R93 4007 D18 TO92 Q5 5119 2N5638 50V C57 68N R94 1 2W 150R R96 1 2W 150R W18 AMP OUT RED R105 1 2W ...

Page 7: ... 4K99 BC560C B C 560C 1U 63V 10K0 MPSA63 RED BLU 140V 6U8 1000U 35V 275V 22N 1N5402 NE5532N 5 0W 0R18 6A2 BD237 TO126 M J21196 Body 250V 4N7 100N 4U7 63V 100N 0R18 5 0W RED 100K 5 0W 390R 4U7 63V 100V 4U7 18R 1 2W 5C 10K B 50K B 50K B 50K 5C 10K 5POS 2S B 50K 5C 10K 10K 20K 220U 160V M J21195 Body 1B LIN 10K 8R2 15 W 0R000 2000UH 6 6 15V 15V 15V SG IG IG 2 6 IG IG 3 6 M1237 15V SG 15V K2 V1 01 AMP...

Page 8: ...MODEL S VER DESCRIPTION OF CHANGE D D D V V V V V D D N N N N N D D D V V V K2 V1 00 V V FEB 27 2006 D D N N N N N M1237 01 PCB_DATABASE_HISTORY V1 01 PC 7089 AH R44 4829 10K 4639 4K99 R48 10K 4829 4K99 4639 R130 20K 4885 4838 100K CHANGE HPF FRQ APR 07 2006 FIRST RELEASE PC 7086 R52 4840 33K 4838 100K 11 8 5 2 12 9 6 13 10 7 3 4 1 D D D D V V V V N N N N D D D D D D D D D V V V V V V V V V N N N ...

Page 9: ...09 1K 8 100N 470P 4148 BAT 85 1K 2K 05 12K 1 2U2 63V 220P 4148 4148 RE D BAT 85 10K 330N 10K 0 4148 1K 100N 75R 150R 1 2W 100N MPSA6 3 B C 550C 150R 1 2W BAT 85 B C 550C 4007 6A2 6A2 220P 4007 4007 3300U 50V MPSA6 3 1K 100N W atts MC 7915C T 1U 1R 1 0W W atts MC 7815C T 1U BAT 85 50V 22U 2N5638 2K 2 22V 0 150R 1 2W 150R 1 2W 20K 49K 9 470U 63V 16V 0 1K 5 0W 330N 1M 4148 470R B C 560C 1K 4007 4K 7 ...

Page 10: ... 100N 470P 4148 BAT 85 1K 2K 05 12K 1 2U2 63V 220P 4148 4148 RE D BAT 85 10K 330N 10K 0 4148 1K 100N 75R 150R 1 2W 100N MPSA6 3 B C 550C 150R 1 2W BAT 85 B C 550C 4007 6A2 6A2 220P 4007 4007 3300U 50V MPSA6 3 1K 100N W atts MC 7915C T 1U 1R 1 0W W atts MC 7815C T 1U BAT 85 50V 22U 2N5638 2K 2 22V 0 150R 1 2W 150R 1 2W 20K 49K 9 470U 63V 16V 0 1K 5 0W 330N 1M 4148 470R B C 560C 1K 4007 4K 7 1 0W 40...

Page 11: ...462 20 WHITE 13 BLACK MID 3491 W21 WOOFER RED RT V 3491 3491 3491 1 2 3 4 W53 PCB CONN 4 CIR BOTTOM 156 3903 W45 BLK TWEETER C74 5933 100V 4U7 W15 YEL TWEETER W25 MID BRN W19 BLK WOOFER W44 WHT MID 3491 3463 C73 5960 140V 6U8 L2 0R000 2000UH 3765 R149 5012 15 W 8R2 ...

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