Yorkville MM4 Service Manual

WEB ACCESS: http://www.yorkville.com

WORLD HEADQUARTERS

CANADA

Yorkville Sound

550 Granite Court
Pickering, Ontario

L1W-3Y8 CANADA

U.S.A.

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

SERVICE MANUAL

1. Parts List (Current Model)

2. M500 Input Board

• M500 Schematic

• M500 PCB Layout

3. M1098 Power Amp Board

• M1098 Schematic

• M1098 PCB Layout

4. M520 Power Amp Board (older version)

• M520 Schematic

• M520 PCB Layout

5. M478 Power Amp Board (older version)

• M478 Schematic

• M478 PCB Layout

6. Contact Information

Voice: [phone]

Fax: [phone]

Quality and Innovation Since 1963

Printed in Canada

Voice: [phone]

Fax: [phone]

s-mm4-1v1.pdf 09/05/00

MM-4 Parts List 3/20/00

Qty.

YS #

SQUARE BUMPER BUTTON BLACK

8843

8' 3/18 SJT AC LINE CORD 250WH187BL

8770

HEYCO #1214 STRAIN RELIEF

8765

SIDE ENTRY PCB CONN .156 8POS

8607

24 PIN BREAKAWAY LOCK .156

3739

8 CIR CABLE HOLDER .098

8664

8667

8818

1/4-20 KEPS NUT ZINC

3698

1/4-20 CAGE NUT C7988142027

1398

TO-247 THERMO CONDUCTIVE PAD

TO218 PREGREASED MICA 56-78-2AP

TO220 THERMO PAD LARGE HOLE 56359B

22AWG STRAN TC WIR JMP

22AWG SOLID SC WIR T&R JMP

24AWG SOLID SC WIR RAD JMP

5.0W 0R15 5% BLK RES

2.0W 3R9 5% T&R

1.0W 10R 5%FLAME PROOF T&R RES

1/4W 10R 5% T&R RES

1/4W 33R 5% T&R RES

1/4W 33R2 1%FLAME PROOF T&R RES

1/4W 33R2 1% T&R RES

1/4W 68R 5% T&R RES

1.0W 100R 5% T&R RES

1/4W 100R 5% T&R RES

1/4W 120R 5%MINI T&R RES

1/4W 150R 5% T&R RES

1/4W 249R 1% T&R RES

1/4W 270R 5% .2"U T&R RES

1/8W 274R 1%FLAME PROOF T&R RES

1/4W 390R 5% .2"U T&R RES

1/4W 470R 5% T&R RES

1/4W 562R 1% T&R RES

1/4W 620R 5% T&R RES

1/8W 681R 1%FLAME PROOF T&R RES

1/4W 750R 5% T&R RES

1/4W 953R 1% T&R RES

1/4W 1K 5% T&R RES

1/4W 1K5 5% T&R RES

1/4W 2K 5% T&R RES

2.0W 2K2 5% BLK RES

1/4W 2K2 5% T&R RES

1/4W 3K3 5% T&R RES

1/4W 4K12 1% T&R RES

1/4W 4K7 5% T&R RES

1/4W 4K99 1% T&R RES

1/4W 5K36 1% T&R RES

1/4W 6K8 5% T&R RES

1/4W 7K960 0.1% *** T&R RES

1/4W 10K 5% T&R RES

1/4W 10K 5%MINI T&R RES

1/4W 12K 5% .2"U T&R RES

1/4W 15K 5% T&R RES

1/4W 20K0 1%MINI MF T&R RES

1/4W 24K 5% T&R RES

1/4W 33K 5%MINI T&R RES

1/4W 36K 5% T&R RES

1/4W 37K90 0.1% *** T&R RES

1/4W 47K 5% T&R RES

1/4W 82K 5% T&R RES

1/4W 100K 5% .2"U T&R RES

1/4W 100K 5%MINI T&R RES

1/4W 150K 5% T&R RES

1/4W 220K 5% T&R RES

1/4W 270K 5%MINI T&R RES

1/4W 2M2 5% T&R RES

10" 9C-26AWG RIB 3/4" NOTCH 0.1"

16GA COLD ROLLED STEEL 4X8' SHEET

2.56

14GA SATINCOAT STEEL 4X8 SHEET

0.25

MM-6/SR-300 RAW HEATSINK

0.25

3/4"X4'X8' SPRUCE STAN. SHEATING

3.59

4-40 X 5/16 PAN PH MS JS500

4-40 X 1/2 PAN PH MS JS500

#4 X 5/16 PAN QUAD TYPE A JS500 BLK

6-32 X 3/8 PAN PH TAPTITE JS500

8-32 X 5/16 PAN QUAD TAPTITE JS500

8-32 X 3/8 PAN QUAD TPTTE JS500

#8 X 3/4 OVAL PH TYPE A BLACK OXIDE

#10 X 7/8 FLAT PHIL TYPE A JS500BLK

YS # Description Qty. YS # Description

5906 RED 3MM LED 1V9 20MA .4SPCER T&R 1 3827
6405 RED 3MM LED 1V7 5MA BRT 1 3484
5908 GRN 3MM LED 1V9 20MA .4SPCER T&R 1 3834
6408 GRN 3MM LED 1V9 5MA FROSTED 1 3521
6825 1N4148 75V 0A45 DIODE T&R 24 3538
6438 1N4004 400V 1A0 DIODE T&R 2 3676
6827 1N5402 200V 3A0 DIODE 2 8793 4-40 HEX NUT ZINC 2
6434 6A2 200V 6A0 DIODE 4 8800 6-32 KEPS NUT ZINC 2
6733 BAT85 30V 0A2 DIODE SCHTKYT&R 2 8788
6824 1N5246B 16V0 0W5 ZENER 5% T&R 4 8890
6463 1N5251BRL 22V0 0W5 ZENER 5% T&R 1 3797
5101 BC550C TO92 NPN TRAN T&R TB 3 3830
5102 BC560C TO92 PNP TRAN T&R TB 2 3846
5103 MPSA06 TO92 NPN TRAN T&R TA 1 4597
5104 MPSA56 TO92 PNP TRAN T&R TA 1 4599
6780 MPSA56 TO92 PNP TRAN TA 1 5299
5105 MPSA13 TO92 NPN DARL T&R TA 1 4749
5119 2N5638 TO92 NCH JFET T&R TC 1 4748
6810 MJF15030 T221D NPN TRAN TJ 1 4686
6811 MJF15031 T221D PNP TRAN TJ 1 4875
6814 MJF6668 T221D PNP TRAN DARL TJ 1 4816
6815 MJF6388 T221D NPN TRAN DARL TJ 1 4995
6988 MJL21194 TO3P NPN TRAN TK 1 4604
6991 MJL21193 TO3P PNP TRAN TK 1 4811
6840 MC33078P IC DUAL OP AMP 1 4735
6882 TL072CP IC FET DUAL OP AMP 3 4852
6884 NE5532N IC DUAL OP AMP 3 4987
6880 4N35 OPTO-COUPLER 1 4859
6467 10K 10% THERMISTOR NTC TO-92 1 4770
5404 _27P 100V 10%CAP T&R BEAD NPO 2 4945
5203 _47P 100V 2%CAP T&R RAD CER.2"NPO 1 4780
5408 _47P 100V 10%CAP T&R BEAD NPO 2 4950
5410 100P 100V 10%CAP T&R BEAD NPO 1 4821
5422 __1N 50V 10%CAP T&R BEAD NPO 10 4799
5423 __1N2 50V 10%CAP T&R BEAD X7R 1 4891
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4781
5204 _10N 100V 10%CAP T&R RAD .2"FLM 2 4869
5302 _15N 50V 10%CAP T&R BEAD X7R 1 4758
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4823
5228 100N 100V 5%CAP T&R RAD .2"FLM 5 4824
5314 100N 50V 10%CAP T&R BEAD X7R 12 4808
5231 220N 63V 10%CAP T&R RAD .2"FLM 1 4705
5255 __1U 63V 20%CAP T&R RAD .2"EL 1 4847
5257 __2U2 63V 20%CAP T&R RAD .2"EL 2 4826
5282 _10U 16V 20%CAP T&R 5X7MM .2"NP 1 4774
5885 _10U 100V 20%CAP T&R AXIAL EL 2 4827
5961 _33U 16V 20%CAP T&R RAD .2"NP 5 4639
5627 _47U 10V 20%CAP BLK RAD NP 2 4778
5267 100U 25V 20%CAP T&R RAD .2"EL 5 4828
5630 330U 25V 20%CAP BLK 10X13MM EL 1 4787
5869 4700U 63V 20%CAP BLK 25X40MM ELS 2 4829
4566 _10K B LIN 9MM P25 2 4983
4567 _20K 5C R/A 9MM P25 4 4953
4568 _50K B LIN 9MM P25 2 4830
4522 __4K7 TRIM POT 1 6123
3819 ___5UH COIL 18AWG R000 AIR CORE 1 4902
8674 R385 PLASTIC CORNER W TREAD 8 6122
3478 CLIP 205/187X032 18-22AWG DISCO/INS 2 4868
3489 CLIP 250X032 18-22AWG DISCO/INSL 1 4794
3491 CLIP 205/187X020 18-22AWG DISCO/INS 1 4834
3682 250 MALE PCB TAB BULK CARTRIGE 7 4837
3498 1/4" JCK PCB MT HORZ 5 4942
3523 1/4" JCK PCB MT HORZ GOLD T__ 1 6120
3460 RCA DUAL PCB MT VERT GOLD .475" 2 4839
3650 XLR ADPT PCB MT 4 4841
3659 XLR FEML PLASTIC 4 6135
3451 EYELET SMALL 0.089 OD PLATED 18 4845
3412 LOWPROFILE FUSEHOLDER 1/4" H345601 1 3610
3414 INTERNATIONAL PC MOUNT FUSEHOLDER 4 9010
2407 2.5 AMP SLO-BLO .25X1.25 FUSE 1 9065
2409 6.0 AMP FAST-BLO .25X1.25 FUSE 2 9565
8458 10.5" STRAP HANDLE, PLASTIC COVERS 1 9811
8604 10-32 T NUT 2 8865
3501 B52200F006 COMP WASH #4 SMALL 2 8741
3745 DUAL XSISTOR PBL SPRING PLATE ZN 1 8842
3806 RECTANGULAR WASHER FOR TRANS SUPPRT 2 8801
3885 XSISTOR SPRING CLIP TO-220 2 8824
3495 1/8" HEATSHRINK POLYOLEFIN 0.015 8802
3795 #8 GROUND LUG ZIERICK 505-169 1 8785
3810 4" NYLON CABLE TIE 3 8781

3
1
1
1

0.333
2

1
4
2
2
2

33
44

5
2
1
1
2
3
2
2
1
2
4
1
2
8
1
2
3
3
8
1
1
1
1
2
1
2
2
3
1
3
5

12

1
2
1
3
1
1
2
1
1
1
1
1

12

6
1
1
2
1
1
1
1

1
2
4

10

7
8

32

2

Description Qty.

10-32 X 1 1/8 FLAT PH MS JS500 2
1/4-20 X 1 5/16 TRUSS PH MS JS500 4
1/4-20 X 2 1/2 HEX HD MS JS500 BLK 1
3/16 NYLON SPACER OD 1/8 X ID .063 8
CUSTOM .4 LED SPACER 2
4-40 X O.5 SWAGE SPACER (ROUND) 1
SHOULDER WASHER SWS-229 LENGTH 1/8 2
3/4 OD X 5/16 ID X .08 THICK WASHER 2
SPST ROKR SW QUIK 180" AC PWR BL/BL 1
125VAC 62VSEC T'RD 1

U:\M500V71.PRN

NOTE:

JB1A

2

MIC

3

1

INPUT

IG

R1A

4K99

JB2A 12345

LINE_IN

SRT

NO_GOLD

These caps are
placed on each
channel between
pin 4 and pin 8 of the 5532
and that channel’s
XLR ground.
This is for
RFI rejection.

JB1C

2

MIC

3

1

INPUT

IG

UNBAL-I/P

RCA

RCA

UNBAL-I/P

R2A

4K99

6

33K
R1C

33K
R2C

ALL UNMARKED DIODES ARE IN4148

C1A

SG

1n

R3A

249R

R4A

249R

SG

R3C

249R

R4C

249R

MODEL(S):­# DESCRIPTION OF CHANGEVER#DATE

JUN/27/94

1

OCT/17/94

2

.

3

NOV/18/94

4

.

5

OCT/23/95

6

.

7

.

8

MAR/23/99

9

JUN/03/99

10

R5A

562R

R6A

562R

C2A
1n

SG

+15V

C15
100n

V-

C3
100n

SG

C1C
1n

R5C

562R

R6C

562R

C2B
1n

SG

M500.SCH_DATABASE_HISTORY

MM-4

5.40

PC#4637

5.50

PC#4653

.

.

5.60

PC#4704

.

.

6.00

.

.

.

.

.

6.10

I/P_CIRCUIT_CHANGED_SAME_AS_M522

7.00

CLIP_CIRCUIT_CHANGED

2

3

2

3

GAIN

20K

R9A

100R

R9C

100R

05C P1A

C5
100n

C6
100n

SG

05C P1C

CW

GAIN

20K

CW

2

3

C13
100n

2

3

16v

C3A

33u

R7A

4K99

1

U1A

1/2

5532

R8A

4K99

SG SG

C2

C14

100n

100n

C4

C16

100n

100n

SG

SG

16v

C3C

33u

R7C

4K99

1

U3A

-40

1/2

5532

R8C

4K99

SG SG

R25 FROM 62K TO 24K
REMOVED AC SECONDARY FUSES, AC
CAPS AND THERMAL BREAKER
REPLACE CHAN 3 PHONE JACK WITH
RCA JACKS.
ALL POWER SUPPLY COMPONENTS
REMOVED AND EXTRA OP AMP ADDED
TO MATE WITH M1098

R10D CONNECTED TO CHANNEL 4 OUTPUT

CONNECTED TO CHANNEL 2 OUTPUT

R10C

C4A

16V

100u

U2A

U4A

R10A

82K

TL072

C19
100n

R10C

82K

TL072

1

0dB

1/2

C4C

16V

100u

1

1/2

0dB

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

R12A

4K7

R12C

4K7

R12B

4K7

R12D

4K7

MASTER VOLUME 50K->10K R12A,B,C,D7.10JUN/17/99
10K->4K7 U5 TL072->5532

V

N

C9
47u

B1 P2
R13
6K8

MPSA13

EBC

R11D

47K

R11B

47K

MASTER VOL.

10K

CW

2

3

U5

5532

C8
47p

1.3V

1/2

D5D

D5B

R11A

47K

D5A

R11C

47K

D5C

R14
47K

D3

LO

50K

R18

CW

2K2

B1 P3

MID

50K

R22

CW

6K8

B1 P4

15n
C11

HI

1

C1
47u

STYLE

"P25"

YORKVILLE NAME: PCB#&VER:

R24

1K

EFX SEND

6

1.3V

10K

B1 P5

SRT

CW

EFX LOOP

JB312345

DATE:

R17

4K7

R20

47K

R21

3K3

R19

82K

R23

2K2

R27

2K

R32

2K

EFX RETURN

GOLD

TIP

JB4 12345

JUN/17/99

M500.SCH

C12
1n

R25
24K

= AC VOLTAGES WITH

TONE CONTROLS FLAT
1K Hz I/P WITH
GAINS AT MAXIMUM

C7
47p

6

5

U5

5532

6

SRT

MODELS: SCH ISSUE:

C20

16V10u

MICROMIX_MM-4

M500

V+

LD1

RED

R37

220K

R33

150K

TL072

U6

R35

150K

R30
10K

2

3

C21
27p

1/2

C22
27p

U6

7

10V

1.3V

POWER
ON LED

TL072

C24

10u

R15

1K

1/2

R16
36K

R36
82K

+V

1

TITLE:

Q1
MPSA13

D2

D1

D5

R47
1K8

LD2

GREEN

R29

470R

R28

620R

CLIP
AMP-REF
AMP-IN

-15V
GND
+15V

TO POWER

AMP.

4_CHANNEL_MIXER

C10
100n

1.2V

7.10

CLIP

LED

D4

7

R26
10K

1/2

R31
47K

5

R34

6

47K

V-

V+

10u

25v

C23

P:\500V90.PRN

SHEARSHEAR

MODEL(S):­# DESCRIPTION OF CHANGEVER#DATE

1

JUN/23/94

2

.

3

JUN/27/94

4

OCT/17/94

5

.

6

NOV/17/94

7

.

8

JUN/15/95

9

.

10

OCT/11/95

11

OCT/31/95

12

.

13

MAR/31/99

14

.

15

JUN/08/99

16

JUN/17/99

17

.

18

D

19

D

20

D

20K

.

PART#4567

GAIN

P1A

C4100N

J51

J4

25V

C4B

100U

U2

TL072

33u
16V

C3B

5532

U1

C3

C2

C15

100N

100N

J50

J1J2J3

FUNCTION

#3650

JB2A

25V

C4A

100U

R10A

R11A47K

1N

1N

82K

R9A

100R

C2A

C1A

33u
16V

C3A

J53

562R

562R

4K99

R6A

R5A

R7A

TJH1

4K99

M500.PCB_DATABASE_HISTORY

VCD

MM4

POWER_SUPPLY_COMPONENTS_ADDED_FOR

6.00
NEW_POWER_PCB_M520

.

PC#4637_R25_FROM_62K->24K

6.10
PC#4663_REMOVED_AC_SECONDARY_FUSES

6.20
AND_AC_CAPS

.

PC#4704_CHAN_3_PHONE_JACK_REPLACED

6.30
BY_RCA_JACK

.

PC#4822_ALL_POWER_SUPPLY_COMPONENTS

7.00
REMOVED_TO_MATE_WITH_M1098_PWR_AMP

.

MOLEX_MOVED_AT_REQUEST_OF_B.A.

7.10
U4_TL071->TL072_OP_AMP_ADDED_FOR

.

EXTRA_GAIN_NEEDED_FOR_M1098

.

PC#_____POT_STYLE_CHANGED_INPUT

8.00
CIRCUIT_ALTERED_SAME_AS_MM6

.

PC#_____CLIP_CIRCUIT_REDONE

9.00
R12A,B,C,D_10K->4K7_MASTER_VOLUME

.

50K->10K_U5_TL072->5532

.

N

V

N

V

N

V

JB1A

LINE_IN

R2A

R1A

4K99

4K99

R12A4K7

R4A 249R

R3A 249R

J56

J52

R8A

4148

D5A

100N

J5

J48

R7B 4K99

J6

R10B 82K

100R

R8B 4K99

20K

PART#4567

GAIN

FUNCTION

#3650

JB2B

R9B

R5B

562R

562R

.

R6B

P1B

R2B

C1B 1N

C2B 1N

P1A
P1B
P1C
P1D
P2
P3
P4
P5
R
R
R
R

4 1/2" YELLOW

.020"

GUIDE

.012"

ETCH

.008"
.005"

P1C

J7J8J9

4K99

R3B 249R

JB1B

LINE_IN

4K99

R4B 249R

R1B

47K

R11B

R12B4K7

4148

D5B

J57

FUNCTION

R9C100RR7C 4K99

25V

C4C

100U

33u
16V

C1C

C3C

J45

J44

R6C 562R

4K99

SHEAR SHEAR

M500.PCB_POT_LIST

CHAN1_GAIN
CHAN2_GAIN
CHAN3_GAIN
CHAN4_GAIN
MASTER
BASS
MID
TREBLE
F
F
F
F

MM-4

#4567
#4567
#4567
#4567
#4566
#4568
#4568
#4566
P
P
P
P

MODEL(S):-

M500

20K

R1C

.

PART#4567

GAIN

#3650

4 1/2" BLACK

JB2C

WC2.

1N

1N

R11C47K

C2C

J43

R4C 249R

R3C 249R

R10C 82K

R5C 562R

4148

D5C

J39

J58

R8C

KNOBPART#FUNCTIONREF

AS_OF

#8704

JAN/2000

#8704

.

#8704

.

#8704

.

#8703

.

#8705

.

#8705

.

#8705

.

K

N

K

N

K

N

K

N

SHEARSHEAR

R151K

R1447K

C10100N

R1636K

D3

D2

D1

R36

SP

J16

J34

5532

J13

J60

4K7

R17

J61

R

LD1

LD2

R47

SP

G

82K

R19

1K5

50K

PART#4568

BASS

TAPER

47K

P3

J27

6 1/2" BLACK

WC2

47K

47K

R12C 4K7

J42

J41

WHTRED

#3460

C16

100N

J54

J40

C14 100N

U4TL072U35532

R2C

J36

R9D

33u
16V

J38

C5 100N

J10

100R

C3D

C6 100N

J11

20K

TAPER

PART#4567

P1D

GAIN

J12

FUNCTION

#3650

R10D

82K

J37

25V
100U

C4D

R7D 4K99

R5D 562R

R8D 4K99

R6D 562R

J35

C1D 1N

4K7

J59

R12D

WC3

R1D

47K

J33

JB2D

4 1/2" BLACK

R3D 249R

C2D 1N

47K

R11D

D5D

4148

J32

WHTRED

#3460

WC3.

R4D 249R

C13100N

C747P

R2D

U5

47K

J31

J14

J15

4 1/2" YELLOW

J29

PT#8664PT#8664

C8

10K

R13

6K8

47P

C23

PART#4566

MASTER

R20

2K2

R18

10U

100V

1B

P2

10V
47U

C11

R21

3K3

10U

100V

C24

WC1

C9

15N

VER 9.00

M500-9.00

47U
10V

J28

C1

J26

50K

1B

PART#4568

P4

MID

M500

1

GREEN WIRE

R37220K

4148

4148

4148

MPSA13

Q1

C

B

1K

R24

R23

R22

2K2

6K8

J25

+15V

-15V

GND

SIG_GND

PART#

SIG_OUT

PART#

#3521

3610

3676

8POS.RT.ANGLE_MOLEX

SG

TO_M1098

+15V

SG

+15V

CLP2

AMP-IN

AMP-REF.

AMP-IN

AMP-REF.

D4

82K

24K

PART#4566

MX1.

-15V

-15V

R25

TREBLE

D5

4148

4148

J22

C12

1N

J23

10K

1B

P5

J17

J19

R26 10K

R33

27P

C21

150K

J24

DRILL DET. M500-9.00

J18

R27 2K

JB3

EFX_SEND

J21

R29 470R

R28 620R

R32 2K

R30 10K

JB4

R3447K

GOLD_T

EFK_RET

10u

C20

16V

R31

47K

TL072

U6

J62

C19 100N

J55

R35

150K

TJH2

C22 27P

.005"

.012"

.008"

ETCH

.020"

GUIDE

SHEAR SHEAR

SOLDERSIDE M500-9.00

PRODUCTION NOTES

STYLE
"P25"

CONNECT TO M500

CLP2

AMP-REF.

AMP-IN

+15V

SG

+45.5V

-45.5V

BLACK

GREEN

WHITE

BROWN

GR/YEL

BLUE

+15V

4N35

6

5

1.2 VRMS

PREAMP PCB

MX1
1
2
3
4
5

+15V

6

AGND

7

-15V-15V

8

C1

953R

R44

R16

1W

15K
R32

15K
R34

100R

R17

1W

100R

C14

100n

500mW

500mW

100n

C17

AGND

16V

D26
16V

D27

AGND

R39
470R

R40
470R

MJF6388

Q12

C15

100n
C16

100n

Q13

MJF6668

ENCLOSE CIRCUITRY IS OFF-PCB.

SW1

AGND

TB4

CHASSIS

2.5A-SB

F3

WC5

CSA

4n7

C22

120V A.C 60HZ LINE

T1.6A

4n7

C22

SEMKO APPRVD

SWITCH

PT#3702

A

B

1

C

C

2

NC

E

34

U2

TLP62_OPTOLED

AGND

4K12/0.1%

33u16V

R1

37K9

R2

Q14
2N5638

AGND

+15V

AGND

-15V

22n

CSA

C23

TB2

680n

C23

TB3

BRN/BLK

D16

D17

D15

D14

D13

C2
47pF

681R

R4

C9
100p

2

1

3

U1

1/2

33078

7K96

R3

10K

R8

C3

63V

2u2

A

R9

CW

4K7

12K
R11

-.85V

TB5

T1

60Hz

150VA

#1396

TB1

245V

BRN

230V

230/245VAC

50Hz

177VA

PT#1398E

BLUE

F6,3A

EXPORT AC PRIMARY

+.67V

3

390R

R10

20K
R12

F1

(35.5VAC)

6A-FB

AGND

TB6

TB7

6A-FB

(35.5VAC)

F2

F1.

F6,3A

F2.

100K

R5

D2

D1

750R

R15

BC560

Q1

270R

R14

10R

C24

R49

10N

10R

R47

C10

10N

Q3
MPSA56

5

6

D20

D21

R41

2K2

D24
5251B
22V

HEAT SINK

TP

U1

C18

4700u

63V

C19

4700u

63V

33078

1/2

WC2.

2u2

7

4148

D29

+45.5V

-45.5V

25V

C20

-.58V

100K

R6

D18

PX6A02

D19

PX6A02

PX6A02

PX6A02

4004

D22
4004

D23

NOTES:

1. ADJUST R9 FOR 3.0 mV BIAS
ACROSS TP1 AND TP2

2. Q3 IS THERMALLY COUPLED TO

3. TEST POINT

Q2
BC550

+16V_BAT

33R

R48

PIN 8 U1
PIN 4 U1

33R

-16V_BAT

R46

WC3

R19

120R

C11
1n

Q4

MPSA06

Q5

MPSA56

390R

R13

C12
1n2

AGND

R43

2M2

D25

R42
10K

4148

D28

R45
390R

R20
274R

R21
33R2

Q6
BC560

+.60V

D3

BAT85

100n

C4

R50
270K

R51
33K

D30

4148

Q15
BC550

RT1

T

10K

R25
4K12/1%

D5

4148

D6
4148

R26
4K12/1%

150R

R27

AGND

150R

R28

C5
100n

R18

D4

5K36

BAT85

25V

2u2

C21

R23
274R

MJF6388

Q7
BC550

R24
33R2

-.58V

MJF6668

ECB

AGND

MJL21194

AGND

MJL21193

DATE:

YORKVILLE NAME: PCB#&VER:

ECB

AUG/31/00

M1098

MJE15031
MJE15030

BCE

+16V_BAT

+45.5V

6

33R

R29

Q8

MJE15030

Q9

MJL21193

D7
4148

R30

2W

2K2

1N5402

D11

WC2

6

WC1

AGND

1

C8

220n

R38

2W

3R9

25.4 VRMS

150 WATTS @ 4R

GAIN = 20

0R15

R31

0R15

R33

5W

5W

16V

1N5246A

D8

16V

1N5246A

D9

C6

25V

330u

C7

25V

100u

2

1N5402

Q10

MJ15031

68R

Q11

MJL21194

R35

2W

2K2

D10

4148

R36

-16V_BAT

2N5638

MPS-A56/A06

DSG

ECB

MODELS: SCH ISSUE:

EBC

MODEL(S):­# DESCRIPTION OF CHANGEVER#DATE

1

JUL/05/95

2

.

3

FEB/12/96

4

D

5

JUN/04/98

6

JAN/11/99

7

.

8

MAR/08/99

9

JUN/08/00

10

AUG/31/00

MM-4_MM-4CE

M1098.SCH_DATABASE_HISTORY

MM-4

.

1.10
.

.

.

1.20
.

.

CE_XFMR_1298E->1398E_TOROID

1.30
THERMISTOR_100K->10K_ADD_R50,R51,

1.40
Q15

.

ADD_D30

1.50
NA_FUSE_3A-SB->2.5A_SB

1.60
PC#6205_NA-XFMR_#1298->#1396

1.70

M1098

D12

-45.5V

BC550

PC#4850/4851 DELETE R7, C13,
R19 510R TO 120R ADD D26,D27,R45
PC#4971 ADD BATTERY BYPASS CIRCUIT
CORRECT AC CAP

BC560

EBC

EBC

TITLE:

AMPLIFIER_150W

AGND

SRT

SRT

WC1.

5uHL1

R37

10R

OUTPUT

150W/4R

JB112345

OUTPUT

150W/4R

JB212345

1W

1.70

OUTPUT

WC1

MODEL(S):­# DESCRIPTION OF CHANGEVER#DATE

1
2
3
4
5
6
7
8
9
10
11

M1098.PCB_DATABASE_HISTORY

JUL/06/95
.
NOV/02/95
.
.
.
DEC/06/95
.
.
FEB/09/96
AUG/25/98

TB3

250TAB

BLK_XFMR

C23

XFMR

BLK_AC

TB4

.

TB2

XFMR

WHT_AC

250TAB

WC2

BLK_XFMR

TB1
TB5

RED_SEC1

XFMR

#3414 .

OUTPUT

BROWNYELLOW

AGND

O/P

.

SEE

NOTES

RTV

F1

CSA-6A-FB/125V

CSA-6A-FB/125V

.

.

CE-F6,3A/230V

CE-F6,3A/230V

RED_SEC2

XFMR

TB7

ASSEMBLY M1098-5.00

VCD

MM-6/MM-4

2.00

PC#4850/4851_REMOVE_R7,C13_ADD_D26

.

D27_R45/R19_510R->120R

3.00
.
.
.

3.10
.
.

3.20

4.00

REMOVE MIRROR IMAGE AND REPLACE

PC#4926

WITH STEP AND REPEAT

.
.
.

ADD BATTERY VOLTAGE BYPASSING

PC#4971

CIRCUIT FOR OP AMP. MOVE DIODES

.

AWAY FROM U2.

.

THERMISTOR MOVED

PC#XXXX
PC#5757_REDO_FOR_680N_AC_CAP

4N7

250VAC

D21

#6434

PX6A02

CSA-6AFB/125V

CSA-6AFB/125V

#3414 .

CE-F6,3A/230V

CE-F6,3A/230V

BAR DOWN

C22

D20

#6434

PX6A02

BAR DOWN

PX6A02

#6434

F2

.

.

BAR DOWN

D19

BAR DOWN

RTV

4700u

63V

PART#5869

D18

D22

#6434

PX6A02

# DESCRIPTION OF CHANGEVER#DATE

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

RTV

C19

YEL._C-TAP

XFMR

TB6

IN4004

D25

R412K2

R432M2

D23

IN4004

1N4148

OCT/19/98
JAN/11/99
JAN/25/99
MAR/08/99
D
D
D
D
D
D
D
D
D
D
D

Q13 -15V

Q12 +15V

MJF6668

MJF6388

BE

BE

C1

J7

J6

J5

C17

100n

15K

470R

100n

R40

C16

1W

100R

R16

25V

J9

R4210K

R34

IN5246

D27

AGND

Q14

33u

U2A

J8

16V

U2

2N5638

J10

4148

D16

TLP62_

D14

4148

C20

63V

4700u

R17

RTV.

1u

25V

1W

100R

R39

C18

RTV

PART#5869

J4J2J3

C14

100n

470R

IN5246

R32 15K

C15 100n

D26

WC3

WC2.

J1

C21

2u2

22V

D24

SOLDERSIDE M1098-5.00

.

PC#5854_MOVE_C2_AWAY_FROM_U1

.

REPLACE_THERMISTOR_ADD_R50,R51,Q15

.

PC#5908_ADD_TLP621

5.00

MOVE_C19_ADD_D30_TO_THERM_CIRCUIT

V

N

V

N

V

N

V

N

V

N

V

N

V

N

V

N

V

N

V

N

V

N

4148

4N35

-15V

D17

4K12/0.1%

37K90

R3 7K96

R2

R44953R

AGND

+15V

C2

47p

R1

4148

4148

J11

D2

D1

J12

C9 100p

R4 681R

J13

R15 750R

4148

D13

4148

D15

M5XXTO_PRE-AMP

AGND

CLP2

AMP-IN

OUTPUT WIRE

Q3

#8607

SPACER

A56

Q3

R8

10K

R19.

120R

1N

R10390R

4K7

U1 MC33078

R9

C3

2u2
63V

BC560

100K

Q2

R5

BC550
33R
R48

J14

R6 100K

10R

R49

FOR MM-6

R45

390R

C11.

4148

FUNCTION

Q1

10n

C24

#6810

MJE15030

BE

D28

4148

D7

D3

D29

390R

R13

BAT85

1N2

100N

C4.

R14270R

12K

R11

MPSA06

16V

330u

20K

R12

33R

10R
R47

AGND

-57V
+57V

MJL21193

#6991

R29.
33R

4148

C12.

Q8

Q4

C6

10n

Q9

TP1 TP2

150R

R27

J15

J16

4K12/1%

R25.

R46

4148

D5

C10

R31

0R15

5WATT

R21 33R2

16V

D8

RT1

R30

2W

2K2

R51 33K
R50 270K

274R

MJL21194

10K

2K2

R18

D30

J18

5K36

4148

Q15

BC550

BC560

R20

Q7

Q6

2-OZ COPPER

#6988

4148

2W

5W

R35

R33

BC550

BLANK SIZE=15.800" X 6.700" PCB MECH M1098-5.00

PRODUCTION NOTES

1 NOTE LOCATION OF YELLOW SPEAKER WIRE FOR
MM-6 AND MM-4

C23 FOR NORTH AMERICA IS 22N PT#64352
C23 FOR EXPORT (CE,S,E) IS 680N PT#5266

TRANSISTOR MOUNTING3

STUFF U2 4N35 OR U2A TLP621 NOT BOTH4

Q11
D10

R23

0R15

R24

#6811

MJE15031

Q10

BE

D4

BAT85

100n

274R

33R2

100u

25V

C7

C5

16V

D9

R36

68R

R28

150R

Q5 A56

D6

4148

J17

YELLOW

#8607

SPACER

1N5402

R26 4K12

D12

Q9/Q11

3R9

1W

O/P

1N5402

D11

WC1.

R37

R38

ECB

O/P

1W

10R

L1

PART#

C8

220n

#8607

SPACER

M1098-5.00

OUTPUT WIRE

FOR MM-4

5uH

RTV

M1098

VER:5.00

SERIAL#

Q8/Q10

ECB

BLANK SIZE=15.800" X 6.700"

I/P

SGND

V-

GND

NOTE: SUPPLIES MUST BE
SYMETRICAL TO WITHIN +/- 10%

D16

1N4004

R21

200R

33U

16V

16V

33U

C7

C6

1W

R13

249R

R15
2K7

R14
2K7

R17

249R

Q12
BC550

R44
10K

R41
4K7

C4

100u 63v

R11
5K1

R51
5K6

0.5W

GND

68K
R28

68K
R29

R42
47R

GDN

Q15

S

10v

D11

R47
68K

R25
2K7

R24

2K7
R48
68K

10v

D10

C10

C18

GDN

D9

R46

2W

0R1

R45

2W

0R1

D8

S

IRFP250

FE6BTR

R39
22R

FE6BTR

Q16

IRFP250

D15

1N4004

M520

OUTPUT

L1

5uH

POUT

R49

0.5W

10R

500mW

10V 2N2

D6

D7

GND

10V 2N2

500mW

OUTPUTS

GND

R2

R18
10K

BC550

R23
4K7

R22

200R

Q11

C15

R6

100K

100K

Q10

BC550

D5

Q14

BC560

R16

200R

IAMP_IN

D4

Q9

MPSA93

25v 2N2C325v 100P

R34

200R

200R

R12

D1

R3

10K
R31

470R

BC550

470P

C11

60v

R30

470R

GND

Q13

MPSA93

C12

25v 680P

R27
2K7

C13

Q8

R52
30K

D2

200R

4K7

MPSA93

Q5

MPSA93

Q4

1K
R1

Q6

1mA

30K
R20

MPSA43

2V0
250mW

D12

PILOT

LD1

RED

Q1

GND

R5

C9

75v 4p7

C19

75v 4p7

BAV21

D14

R9
18K

200R

R26

VA_OUT

R4

Q7

MPSA93

5mA

16V

C5

33U

Q3

MPSA43

10v 100N

C17

30K

63v

R32

4u7

GND

R10

C1

68U16V

1K5

V+

GND

C2

68U16V

GND

C16

4u7

63v

R7

1K5

C20

100p

R19
10K

Q2

MPSA43

R8
30K

25v

470p

GND

MPSA43

C14

IRFP250

GD S

MPSA93

EBC

MPSA43

EBC

BC560C

CBE

BC550C

CBE

DATE:

AUG\29\94

YORKVILLE NAME: PCB#&VER:

M520MM4.SCH

MODELS: SCH ISSUE:

MM-4

M520-1.10

GOLD

SRT

USE

JK1

GOLD

SRT

USE

JK2

TITLE:

MM4_PWR_AMP

R9.

2W

3R9

C5.

100V

100n

GND

1.10

VCD

SHEAR

R10

1K5

16V
68U

C1

Q2

A43

A93

Q5

10K

R19

30K

R20

A43

Q1

Q7

A93

Q6

C9

Q4

A43

FUNCTION

MC1

DO NOT STUFF

FOR MM4

PART#

1K5

16V
68U

R7

C14

100P

J16

4K7

A93

4P7
4P7

1K

R1

FUNCTION

LINE

C2

FUNCTION

30K

470P

C20

200R

R5

R26

C19

1

RIBBON

BLACK

CABLE

R8

16V
33U

J15

Q3

LD1

R

30K

C5

A43

R32

1

Q11

C15

200R

R4

100N

BAV21

D14

Q14

33U
16V

560

R18

10K

R14

200R

R22

4148

2K7

J14

550

R23

4K7

2V0

J13

18K

10V

D12

R9

D10

J11J12

Q16

PART#6928

IRFP250

SDG

C6

D5

4148

R48

47R

68K

Q12

J10

Q13

C7

33U

A93

16V

2K7

D4

C12

R27

680P

30K

R52

2K7

200R

550

J9

200R

4148

R4410K

R34

D1

1/2W MINI

PT#4989

DRILL DETL M520-1.10

SOLDERSIDE M520-1.10

R16

200R

J8

C13

100P

470R

R21

R30

Q8

550

R15

R29

68K

5K6

4148

D7

R51

2K7

D2

4148

2N2

C18

470P

C11

2N2

100U

63V

R31

470R

C3

200R
100K
249R

C4

A93

R3

10K

Q9

R12

R6

R17

FE6BTR

R2

0R1

100K

249R

550

Q10

R45

5WATTS

R28

68K

J7

R13

4148

BAR DOWN

D6

PART#

D8

0R1

22R

R39

R46

BAR DOWN

FE6BTR

5WATTS

C10

2K7

2N2

PART#

J6

D9

R49

10R

0.5W

5UH

R25

68K

R47

R41

J4

10V

D11

J2

Q15

5K1

R11

J5

J3

PART#6928

IRFP250

S D G

L1

1WATT

4K7

63V
4U7

C17

J1

D15

4004

D16

NO PINS FOR MM4

S+

4004

S-

V+

GND

V-

63V
4U7

C16

BLACK

LINE

FUNCTION

GND

SIG

I/P

SIG

FUNCTION

SHEARSHEAR

YEL

FUNCTION

BLK

FUNCTION

GND

V-

M520-1.10

1

STUFF 5 PIN MOLEX

FOR MM4 ONLY

1

V+

2WATTS

LINE_IN

3R9

R53

J17R24

LINE_IN

C21

250V
100N

ASSEMBLY M520-1.10

PCB MECH M520-1.10

U:\M478V32.PRN

ALL VOLTAGES MEASURED WITH RESPECT TO GROUND

DC VOLTS MEASURED NO SIGNALDC VOLTS

AC VOLTS MEASURED INTO 4 OHM LOAD

AC VOLTS

WITH AC PRIMARY AT RATED LINE VOLTAGE

DIFFERENTIAL
VOLTAGE THE POINTS INDICATED

BLACK

GREEN

WHITE

AS MEASURED BETWEEN

AC I/P VOLTAGE

1.1v

GND

16V

C3

BZX79C

4u7

ZD2

63V

+0.12 VDC

R1

C1
220n

1K

R2

33K

RX1

RX2

0.5W

0.5W

82R

RX4

0.5W

82R

-45VDC

+45VDC

-45VDC

YSL3695 +45VDC

82R

RX3

0.5W

82R

YSL34112.92A

CHASSIS MOUNT PARTS NOT ON PCB

MJH11017

BDV67D

MJE340

MPSA56

+45VDC

33V
BZX79C

ZD1

Q1
MPSA56

C2
470p

1.0 V

R5

1K3

R6

3K3

10N

MPSA06

+16 VDC

R4

15K

MPSA56

-42.2 VDC

-42.9 VDC

C4
15p

D1

BAV21

1.5V

120VAC

60Hz

200VA

NOTE:ADJUST RT1
FOR 7mv BETWEEN
TP1&TP2 COLD

+0.12VDC+0.67 VDC

Q2

R7

4K7

D2

YSL#1283

FOR EUROPEAN UNITS ONLY

NOTE:ADJUST RT1

FOR 2.5-3.0mv BETWEEN

TP1&TP2 COLD

R3

4K7

R19
33K

7K5

68u

1.0 V

8AMP

BRIDGE

BR1

YSL6422

C7
10p

R17
15K

R20

RT1

470R

R12

1K5

R18

C8

D3D716v

Q3

MPSA06

-43.5 VDC

R10

100R

R11

100R

1K5

C9

25V100u

62K

R21

-1.4 VDC

A

CW

R16

680R

-12.6 VDC

R22

0.5W

1K8

R24

0.5W

1K8

+4.8 VDC

BZX79C

ZD3

Q5
MPSA06

6.2V

470p

C6

-44.2 VDC

-44.8 VDC 1.0 V

63V

4700u

63V

4700u

3V0

0.5W

0.5W

R23
1K8

R25
1K8

R15

+24.7 VDC

24.6 V

R26

180R

1n5
C10

680R

+45VDC

-45VDC

Q4

MJE340

R13

10R

D4

RED

LD1

D6

26.5 V

0.2V

BROWN

Y/GREEN

-1.4 VDC

BLUE

D5

+0.15 VDC

Q6

MPSA06

C11

63V

4u7

R28

1K5

Q8

MPSA56

R14

180R

C5
470p

R27

100R

R29

1K

T1,6A

CHASSIS MOUNT PARTS NOT ON PCB

4.0 V

+0.15 VDC
Q7
MPSA56

D8

C12
10n

C13
10n

51K

R30

R31

1K

R32

1K5

D9

-1.1 VDC

26.3 V

NOTES:

1. ALL UNMARKED DIODES ARE 1N4148.

2. Q5 IS THERMALLY COUPLED TO THE HEAT SINK
SELECTED MJH11017 ARE
YORKVILLE PART # 6803

EUROPEAN POWER SUPPLY

YSL3411

2K7
R43

R33

51K

220VAC

50HZ

200VA

1.1 V

LD2

RED

R34

470R

390p

YSL#1290

R35

1K5

R36

1K5

0R18

R38

Q9

BDV67D

TP1

R37

5W

0R18

24.5 V

5W

TP2

Q10
MJH11017

SELECTED

BRIDGE

YSL6422

R39
4R7

8AMP

BR1

0.5W

R42

0.5W

10R
R40

0.5W

4R7

22n
C14

C16

4700u

C15

4700u

63V

63V

SRT

SRT

SPEAKER
OUTPUT
JACKS

4 OHM
MINIMUM
LOAD

-45VDC

5uH

JB1

JB2

L1

R41

0.5W

10R

BCE

ECB

EBC

YORKVILLE SOUND LTD

CAD FILE NAME:
C:\PCAD\EXE\

FOR MODEL(S):
DESIGN BY:

MM4&MM4E

M478-9.0

DRAWN BY:

SCH ISSUE:PCB VER:

3.20

DATE:
FEB\10\94 MP4_POWER_AMP.C\MP4.SCH

OFDWG #:

TITLE:

21H.GP.I

PCB #:

M478E

M461 HE T SPRE DER

P:\478.PRN

DETL M478-10.00

M478

USE THERMAL COMPOUND

UNDER MSA06

IDLE

470R

MPSA06
Q5

R21

62K

1K8

0.5WATT

R25

7K5

R20

1K8

0.5WATT

R24

BDV67D

R16

R22

TP1

680R

1K8

1K8

0.5WATT

SEP 91

25V

100U

C9

STAND MPSA06

IN 0.25"

STIR STICK

ASSEMBLY M478-10.00

PCB MECH M478-10.00

VCD

DEVICE

BELLY BUTTON BELLY BUTTON

PT# 3800 PT# 3800

WASHER PT#3511 WASHER PT#3511

BE SURE THAT THE MICA
FOR THE BDV60 IS NOT
UNDER THE MPSA06

R35

ZD3

C6

R15

R34

1N5

1K5

2K7

R43

3V

180R

R26

470P

LD1

LD2

680R

COLOR

COLOR

D4

470R

4148D84148

4148

100R

D5

R27

PART#

R23

J6

0.5WATT

R18

M478-10.00

5WATT

C10

R37

FOR EURO SEMKO ADD #8629 SPACER

ON M478E ON LEADS OF R37 AND R38

C11

4U7

63V

MPSA06

Q6

51K

MPSA56

R31

C12

J1

10N

Q7

#8800 NUT

#8820 WASHER

#3563 BRACKET

#8800 NUT

R11

R14

C5

D6

R301KR28

R29

D7

100R

180R

470P

1K

4148

1K5

4148

Q8

MPSA56

1K5

R32

FUNCTION

MJE340

1K5

10N

C13

R12

#3892

Q4

SOLDERSIDE M478-10.00

DEVICE

R13

R10

R6

D1

10R

500*60,B

R5

3K3

100R

BAV21

C8

R18

1K3

1K5

68U

16V

MPSA06

MOUNT Q4 WITH
#8792 SCREW
#3501 BELL WASHER
#8793 NUT

4148

D3

C4

15P

4148

D2

MJH11017

PART#6803

R17

390P

15K

4K7

1K5

R7

4148

10P

D9

C7

BLACK WIRE
M478A = 9 1/2"
M478C+M478E = 7"

R36

R38

TP2

J4

Q1

Q2

R18

5WATT

MPSA56

MPSA56

33K

51K

R19

R33

470P

C2

4U7

#8800 NUT

WASHER PT#3511

BEND AND CRIMP

BRIDGE LEGS

UNDER PCB

R3

ZD1

4K7

R4

C1

4700U

33V

C3

15K

220N

100V

63V

16V

33K

R11KR2

ZD2

PART#5859

C16

FUNCTION

50V

15K

4700U

50V

PART#5859

C15

510R

510R

680R

680R

0.5WATT

0.5WATT

0.5WATT

0.5WATT

6" BLACK (7" BLACK FOR M478E)

680R

0.5WATT

680R

0.5WATT

510R

510R

0.5WATT

+

AC

#8830

6422

0.5WATT

BRIDGE

HEAT SPREADER

PCB

AC-

4R7

4R7

22N

0.5WATT

0.5WATT

400V

4" YELLOW (5" BLACK FOR M478E)

C14

R39

R40

5uH

10R

0.5WATT

10R

0.5WATT

LINE_IN

PART#

LINE_IN

R41

R42