YORKVILLE MM-4 User manual

U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 U A
Voice: [phone]
Fax: [phone]
WORLD HEADQUARTERS
WEB ACCESS: http://www.yorkville.com
CANADA
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: [phone]
Fax: [phone]
Quality and Innovation Since 1963
Printed in Canada
s-mm4-1v1.pdf 09/05/00
SERVICE MANUAL
1. P rts List (Current Model)
2. M500 Input Bo rd
• M500 Schem tic
• M500 PCB L yout
3. M1098 Power Amp Bo rd
• M1098 Schem tic
• M1098 PCB L yout
4. M520 Power Amp Bo rd (older version)
• M520 Schem tic
• M520 PCB L yout
5. M478 Power Amp Bo rd (older version)
• M478 Schem tic
• M478 PCB L yout
6. Cont ct Inform tion

MM-4 Parts List 3/20/00
YS # Description Qty. YS # Description
Qty.
YS #
Description Qty.
5906 RED 3MM LED 1V9 20MA .4SPCER T&R 1 3827
SQUARE BUMPER BUTTON BLACK
3
8843
10-32 1 1/8 FLAT PH MS JS500 2
6405 RED 3MM LED 1V7 5MA BRT 1 3484
8' 3/18 SJT AC LINE CORD 250WH187BL
1
8770
1/4-20 1 5/16 TRUSS PH MS JS500 4
5908 GRN 3MM LED 1V9 20MA .4SPCER T&R 1 3834
HEYCO #1214 STRAIN RELIEF
1
8765
1/4-20 2 1/2 HE HD MS JS500 BLK 1
6408 GRN 3MM LED 1V9 5MA FROSTED 1 3521
SIDE ENTRY PCB CONN .156 8POS
1
8607
3/16 NYLON SPACER OD 1/8 ID .063 8
6825 1N4148 75V 0A45 DIODE T&R 24 3538
24 PIN BREAKAWAY LOCK .156
0.333
3739
CUSTOM .4 LED SPACER 2
6438 1N4004 400V 1A0 DIODE T&R 2 3676
8 CIR CABLE HOLDER .098
2
8664
4-40 O.5 SWAGE SPACER (ROUND) 1
6827 1N5402 200V 3A0 DIODE 2 8793 4-40 HE NUT ZINC 2
8667
SHOULDER WASHER SWS-229 LENGTH 1/8 2
6434 6A2 200V 6A0 DIODE 4 8800 6-32 KEPS NUT ZINC 2
8818
3/4 OD 5/16 ID .08 THICK WASHER 2
6733 BAT85 30V 0A2 DIODE SCHTKYT&R 2 8788
1/4-20 KEPS NUT ZINC
1
3698
SPST ROKR SW QUIK 180" AC PWR BL/BL 1
6824 1N5246B 16V0 0W5 ZENER 5% T&R 4 8890
1/4-20 CAGE NUT C7988142027
4
1398
125VAC 62VSEC T'RD 1
6463 1N5251BRL 22V0 0W5 ZENER 5% T&R 1 3797
TO-247 THERMO CONDUCTIVE PAD
2
5101 BC550C TO92 NPN TRAN T&R TB 3 3830
TO218 PREGREASED MICA 56-78-2AP
2
5102 BC560C TO92 PNP TRAN T&R TB 2 3846
TO220 THERMO PAD LARGE HOLE 56359B
2
5103 MPSA06 TO92 NPN TRAN T&R TA 1 4597
22AWG STRAN TC WIR JMP
33
5104 MPSA56 TO92 PNP TRAN T&R TA 1 4599
22AWG SOLID SC WIR T&R JMP
44
6780 MPSA56 TO92 PNP TRAN TA 1 5299
24AWG SOLID SC WIR RAD JMP
5
5105 MPSA13 TO92 NPN DARL T&R TA 1 4749
5.0W 0R15 5% BLK RES
2
5119 2N5638 TO92 NCH JFET T&R TC 1 4748
2.0W 3R9 5% T&R
1
6810 MJF15030 T221D NPN TRAN TJ 1 4686
1.0W 10R 5%FLAME PROOF T&R RES
1
6811 MJF15031 T221D PNP TRAN TJ 1 4875
1/4W 10R 5% T&R RES
2
6814 MJF6668 T221D PNP TRAN DARL TJ 1 4816
1/4W 33R 5% T&R RES
3
6815 MJF6388 T221D NPN TRAN DARL TJ 1 4995
1/4W 33R2 1%FLAME PROOF T&R RES
2
6988 MJL21194 TO3P NPN TRAN TK 1 4604
1/4W 33R2 1% T&R RES
2
6991 MJL21193 TO3P PNP TRAN TK 1 4811
1/4W 68R 5% T&R RES
1
6840 MC33078P IC DUAL OP AMP 1 4735
1.0W 100R 5% T&R RES
2
6882 TL072CP IC FET DUAL OP AMP 3 4852
1/4W 100R 5% T&R RES
4
6884 NE5532N IC DUAL OP AMP 3 4987
1/4W 120R 5%MINI T&R RES
1
6880 4N35 OPTO-COUPLER 1 4859
1/4W 150R 5% T&R RES
2
6467 10K 10% THERMISTOR NTC TO-92 1 4770
1/4W 249R 1% T&R RES
8
5404 _27P 100V 10%CAP T&R BEAD NPO 2 4945
1/4W 270R 5% .2"U T&R RES
1
5203 _47P 100V 2%CAP T&R RAD CER.2"NPO 1 4780
1/8W 274R 1%FLAME PROOF T&R RES
2
5408 _47P 100V 10%CAP T&R BEAD NPO 2 4950
1/4W 390R 5% .2"U T&R RES
3
5410 100P 100V 10%CAP T&R BEAD NPO 1 4821
1/4W 470R 5% T&R RES
3
5422 __1N 50V 10%CAP T&R BEAD NPO 10 4799
1/4W 562R 1% T&R RES
8
5423 __1N2 50V 10%CAP T&R BEAD 7R 1 4891
1/4W 620R 5% T&R RES
1
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4781
1/8W 681R 1%FLAME PROOF T&R RES
1
5204 _10N 100V 10%CAP T&R RAD .2"FLM 2 4869
1/4W 750R 5% T&R RES
1
5302 _15N 50V 10%CAP T&R BEAD 7R 1 4758
1/4W 953R 1% T&R RES
1
6435 _22N 275V 20%CAP BLK ' 2' 15MM AC 1 4823
1/4W 1K 5% T&R RES
2
5228 100N 100V 5%CAP T&R RAD .2"FLM 5 4824
1/4W 1K5 5% T&R RES
1
5314 100N 50V 10%CAP T&R BEAD 7R 12 4808
1/4W 2K 5% T&R RES
2
5231 220N 63V 10%CAP T&R RAD .2"FLM 1 4705
2.0W 2K2 5% BLK RES
2
5255 __1U 63V 20%CAP T&R RAD .2"EL 1 4847
1/4W 2K2 5% T&R RES
3
5257 __2U2 63V 20%CAP T&R RAD .2"EL 2 4826
1/4W 3K3 5% T&R RES
1
5282 _10U 16V 20%CAP T&R 5 7MM .2"NP 1 4774
1/4W 4K12 1% T&R RES
3
5885 _10U 100V 20%CAP T&R A IAL EL 2 4827
1/4W 4K7 5% T&R RES
5
5961 _33U 16V 20%CAP T&R RAD .2"NP 5 4639
1/4W 4K99 1% T&R RES
12
5627 _47U 10V 20%CAP BLK RAD NP 2 4778
1/4W 5K36 1% T&R RES
1
5267 100U 25V 20%CAP T&R RAD .2"EL 5 4828
1/4W 6K8 5% T&R RES
2
5630 330U 25V 20%CAP BLK 10 13MM EL 1 4787
1/4W 7K960 0.1% *** T&R RES
1
5869 4700U 63V 20%CAP BLK 25 40MM ELS 2 4829
1/4W 10K 5% T&R RES
3
4566 _10K B LIN 9MM P25 2 4983
1/4W 10K 5%MINI T&R RES
1
4567 _20K 5C R/A 9MM P25 4 4953
1/4W 12K 5% .2"U T&R RES
1
4568 _50K B LIN 9MM P25 2 4830
1/4W 15K 5% T&R RES
2
4522 __4K7 TRIM POT 1 6123
1/4W 20K0 1%MINI MF T&R RES
1
3819 ___5UH COIL 18AWG R000 AIR CORE 1 4902
1/4W 24K 5% T&R RES
1
8674 R385 PLASTIC CORNER W TREAD 8 6122
1/4W 33K 5%MINI T&R RES
1
3478 CLIP 205/187 032 18-22AWG DISCO/INS 2 4868
1/4W 36K 5% T&R RES
1
3489 CLIP 250 032 18-22AWG DISCO/INSL 1 4794
1/4W 37K90 0.1% *** T&R RES
1
3491 CLIP 205/187 020 18-22AWG DISCO/INS 1 4834
1/4W 47K 5% T&R RES
12
3682 250 MALE PCB TAB BULK CARTRIGE 7 4837
1/4W 82K 5% T&R RES
6
3498 1/4" JCK PCB MT HORZ 5 4942
1/4W 100K 5% .2"U T&R RES
1
3523 1/4" JCK PCB MT HORZ GOLD T__ 1 6120
1/4W 100K 5%MINI T&R RES
1
3460 RCA DUAL PCB MT VERT GOLD .475" 2 4839
1/4W 150K 5% T&R RES
2
3650 LR ADPT PCB MT 4 4841
1/4W 220K 5% T&R RES
1
3659 LR FEML PLASTIC 4 6135
1/4W 270K 5%MINI T&R RES
1
3451 EYELET SMALL 0.089 OD PLATED 18 4845
1/4W 2M2 5% T&R RES
1
3412 LOWPROFILE FUSEHOLDER 1/4" H345601 1 3610
10" 9C-26AWG RIB 3/4" NOTCH 0.1"
1
3414 INTERNATIONAL PC MOUNT FUSEHOLDER 4 9010
16GA COLD ROLLED STEEL 4 8' SHEET
2.56
2407 2.5 AMP SLO-BLO .25 1.25 FUSE 1 9065
14GA SATINCOAT STEEL 4 8 SHEET
0.25
2409 6.0 AMP FAST-BLO .25 1.25 FUSE 2 9565
MM-6/SR-300 RAW HEATSINK
0.25
8458 10.5" STRAP HANDLE, PLASTIC COVERS 1 9811
3/4" 4' 8' SPRUCE STAN. SHEATING
3.59
8604 10-32 T NUT 2 8865
4-40 5/16 PAN PH MS JS500
1
3501 B52200F006 COMP WASH #4 SMALL 2 8741
4-40 1/2 PAN PH MS JS500
2
3745 DUAL SISTOR PBL SPRING PLATE ZN 1 8842
#4 5/16 PAN QUAD TYPE A JS500 BLK
4
3806 RECTANGULAR WASHER FOR TRANS SUPPRT 2 8801
6-32 3/8 PAN PH TAPTITE JS500
10
3885 SISTOR SPRING CLIP TO-220 2 8824
8-32 5/16 PAN QUAD TAPTITE JS500
7
3495 1/8" HEATSHRINK POLYOLEFIN 0.015 8802
8-32 3/8 PAN QUAD TPTTE JS500
8
3795 #8 GROUND LUG ZIERICK 505-169 1 8785
#8 3/4 OVAL PH TYPE A BLACK O IDE
32
3810 4" NYLON CABLE TIE 3 8781
#10 7/8 FLAT PHIL TYPE A JS500BLK
2

"P25"
STYLE
RED
LD1
1/2
5532
U5
2
31
1/2
5532
U3A
2
31
1K
R15
100R
R9C
CW
GAIN
20K
05C P1C
82K
R10C
100u
16V
C4C
47K
R11A
100n
C2
1/2
TL072
U4A
2
31
100n
C4
16v
33u
C3C
16v
33u
C3A
100n
C3
100n
C15
47K
R11C
RCA
UNBAL-I/P
RCA
UNBAL-I/P
100n
C14
YORKVILLE NAME: PCB#&VER:
MODELS: SCH ISSUE:
TITLE:
DATE:
M500
MICROMIX_MM-4
M500.SCH
JUN/17/99
4_CHANNEL_MIXER
7.10
100n
C16
100u
16V
C4A
82K
R10A
4K99
R7C
249R
R4C
INPUT
MIC
JB1C
13
2
D4
CW
GAIN
20K
05C P1A
100R
R9A
249R
R3C
562R
R5C
1n
C12
82K
R19
15n
C11
1/2
5532
U5
6
57
47p
C7
47K
R20
CW
10K
B1 P5
CW
50K
B1 P4
CW
50K
B1 P3
2K2
R23
3K3
R21
4K7
R17
1K
R24
6K8
R22
2K2
R18
33K
R2C
33K
R1C
562R
R6C
4K99
R8C
47K
R14
47u
C1
47u
C9
4K7
R12A
4K7
R12C
4K7
R12B
4K7
R12D
CW
10K
B1 P2
6K8
R13
47p
C8
1/2
TL072
U6
6
57
10K
R26
10K
R30
2K
R27
2K
R32
SRT
GOLD
JB4 1
2
3
4
5
6
150K
R33
47K
R31
36K
R16
1n
C1C
100n
C10
1/2
5532
U1A
2
31
SRT
JB31
2
3
4
5
6
24K
R25
620R
R28
470R
R29
47K
R11B
4K99
R2A
47K
R11D
4K99
R1A
1n
C2A
MPSA13
Q1
1n
C1A
100n
C5
1n
C2B
4K99
R8A
D1
82K
R36
D2
D5D
D5
220K
R37
EBC
MPSA13
D5B
100n
C6
562R
R6A
100n
C19
D5A
D5C
D3
4K99
R7A
249R
R4A
INPUT
MIC
JB1A
13
2
SRT
LINE_IN
NO_GOLD
JB2A 1
2
3
4
5
6
249R
R3A
562R
R5A
100n
C13
16V10u C20
10u
10V
C24
10u
25v
C23
150K
R35
27p
C22
47K
R34
27p
C21
1/2
TL072
U2A
2
31
GREEN
LD2
1K8
R47
1/2
TL072
U6
2
31
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
JUN/03/99
MAR/23/99
.
.
OCT/23/95
.
NOV/18/94
.
OCT/17/94
JUN/27/94 V
7.00
6.10
.
.
6.00
.
5.60
.
5.50
5.40 N
CLIP_CIRCUIT_CHANGED
I/P_CIRCUIT_CHANGED_SAME_AS_M522
.
.
.
.
PC#4704
.
PC#4653
PC#4637
MM-4
M500.SCH_DATABASE_HISTORY
IG
IG
+15V
SG SG
SG
SG
SG
SG SG
SG
SG
SG
SG SG
V+
V+
V-
V-
HI
LO
MID
10K->4K7 U5 TL072->5532
MASTER VOLUME 50K->10K R12A,B,C,D7.10JUN/17/99
CLIP
pin 4 and pin 8 of the 5532
RFI rejection.
This is for
XLR ground.
and that channel’s
channel between
placed on each
These caps are
0dB
-40
0dB
1.2V
TO MATE WITH M1098
REMOVED AND EXTRA OP AMP ADDED
ALL POWER SUPPLY COMPONENTS
RCA JACKS.
REPLACE CHAN 3 PHONE JACK WITH
CAPS AND THERMAL BREAKER
REMOVED AC SECONDARY FUSES, AC
R25 FROM 62K TO 24K
1.3V
+V
ON LED
POWER
AMP-REF
AMP-IN
-15V
+15V
CONNECTED TO CHANNEL 2 OUTPUT
GND
GAINS AT MAXIMUM
1K Hz I/P WITH
TONE CONTROLS FLAT
= AC VOLTAGES WITH
1.3V
1.3V
TIP
ALL UNMARKED DIODES ARE IN4148
NOTE:
R10C
R10D CONNECTED TO CHANNEL 4 OUTPUT
MASTER VOL.
AMP.
TO POWER
EFX LOOP
LED
CLIP
EFX RETURN
EFX SEND
U:\M500V71.PRN

SHEAR SHEAR
SHEARSHEAR
VCD
.020"
.012"
.008"
.005"
.020"
.012" .008"
.005"
SHEARSHEAR
SHEAR SHEAR
SG
AMP-REF.
AMP-IN
+15V
-15V
CLP2
SOLDERSIDE M500-9.00
M500-9.00
BC
DRILL DET. M500-9.00
JB2A
FUNCTION
#3650
JB2B
FUNCTION
#3650
JB2D
FUNCTION
#3650
JB2C
FUNCTION
#3650
J42
JB1B
LINE_IN
JB1A
LINE_IN
JB3
EFX_SEND
JB4
EFK_RET
GOLD_T
C2D 1N R4D 249R
R8D 4K99
C1D 1N
R1D
47K
R10C 82K
J43
R5C 562R
R151K
R2D
47K
R9A
100R
R2A
4K99
J48
R4A 249R R3A 249R
R6A 562R R5A 562R
R1A
4K99
R7A 4K99
C4C
100U
25V
R5B
562R
R6B
562R
R10B 82K
R7B 4K99
R1636K
R11A47K
R13
6K8
C3
100N
R6C 562R
R7D 4K99
R1447K
R25
24K
J37
J57
R11C47K
J36
R9D
100R
C2B 1N
R4B 249R R3B 249R
R12A4K7
R8A
4K99
R10A
82K
R19
82K
R20
47K
R23
2K2
R21
3K3
R17
4K7
R22
6K8
R18
2K2
R27 2K
R26 10K
R30 10K
R29 470R R28 620R
R31
47K
R47
1K5
J10 J11 J12 J7 J8 J9
J4
J13
J5 J6 J1 J2 J3
J14 J15 J16 J17
J18
J19
C2A 1N
C3B
33u
16V
D5C
4148
C6 100N
R3D 249R
R9C100RR7C 4K99
C14 100N
C8
47P
C10100N
C13100N
C12
1N
C11
15N
C747P
R11B
47K
C3D
33u
16V
C4D
100U
25V
C5 100N
R5D 562R
R11D
47K
C2C 1N
J54
C1C 1N
R4C 249R
R8B 4K99
R3C 249R
D3
4148
D4
4148
J39
D2
4148
D1
4148
J62
R35
150K
C9
47U
10V
C1
47U
10V
R6D 562R
R2B
4K99
J45
R10D
82K
Q1
MPSA13
C1A 1N
WHTRED
#3460
R12B4K7
"P25"
STYLE
R9B
100R
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
D
D
D
.
JUN/17/99
JUN/08/99
.
MAR/31/99
.
OCT/31/95
OCT/11/95
.
JUN/15/95
.
NOV/17/94
.
OCT/17/94
JUN/27/94
.
JUN/23/94
V
V
V
.
.
9.00
.
8.00
.
.
7.10
.
7.00
.
6.30
.
6.20
6.10
.
6.00
N
N
N
50K->10K_U5_TL072->5532
R12A,B,C,D_10K->4K7_MASTER_VOLUME
PC#_____CLIP_CIRCUIT_REDONE
CIRCUIT_ALTERED_SAME_AS_MM6
PC#_____POT_STYLE_CHANGED_INPUT
EXTRA_GAIN_NEEDED_FOR_M1098
U4_TL071->TL072_OP_AMP_ADDED_FOR
MOLEX_MOVED_AT_REQUEST_OF_B.A.
REMOVED_TO_MATE_WITH_M1098_PWR_AMP
PC#4822_ALL_POWER_SUPPLY_COMPONENTS
BY_RCA_JACK
PC#4704_CHAN_3_PHONE_JACK_REPLACED
AND_AC_CAPS
PC#4663_REMOVED_AC_SECONDARY_FUSES
PC#4637_R25_FROM_62K->24K
NEW_POWER_PCB_M520
POWER_SUPPLY_COMPONENTS_ADDED_FOR
MM4
M500.PCB_DATABASE_HISTORY
C4A
100U
25V
LD2
SP
G
R24
1K
J28
R36
82K
D5
4148
J24
J27
U5
5532
D5B
4148
R32 2K
C2
100N
C16
100N
P3
50K
TAPER
PART#4568
BASS
J61
J33 J32
J31
J25
J34
C3C
33u
16V
J58
J35
R8C
4K99
R1B
4K99
J38
J22
J23
J26
J52
C4B 100U
25V
R33
150K
TJH1
TJH2
J29
WC1
WC3.
WC3
J53
KNOBPART#FUNCTIONREF
MODEL(S):- AS_OF
CHAN1_GAIN
CHAN2_GAIN
CHAN3_GAIN
CHAN4_GAIN
MASTER
BASS
MID
TREBLE
F
F
F
F
#8704
#8704
#8704
#8704
#8703
#8705
#8705
#8705
K
K
K
K
JAN/2000
.
.
.
.
.
.
.
N
N
N
N
#4567
#4567
#4567
#4567
#4566
#4568
#4568
#4566
P
P
P
P
P1A
P1B
P1C
P1D
P2
P3
P4
P5
R
R
R
R
MM-4
M500.PCB_POT_LIST
J44
J56
U4TL072U35532
J59
J40
D5D
4148
U1
5532
J41
J51
WC2
C3A
33u
16V
P4
50K
1B
PART#4568
MID
P5
10K
1B
PART#4566
TREBLE
P2
10K
1B
PART#4566
MASTER
P1D
20K
TAPER
PART#4567
GAIN
P1C
20K
.
PART#4567
GAIN
P1B
20K
.
PART#4567
GAIN
U6
TL072
WHTRED
#3460
J60
J50
C21
27P
J55
C19 100N
C20
16V
10u
C22 27P
C15
100N
J21
C23
10U
100V
C24
10U
100V
R12D 4K7
U2
TL072
R3447K
1
3676
MX1.
3610
8POS.RT.ANGLE_MOLEX
#3521
TO_M1098
P1A
20K
.
PART#4567
GAIN
LD1
SP
R
C4100N
C1B 1N
D5A
4148
PART#
R2C
47K
R1C
47K
PART#
WC2.
R12C 4K7
R37220K
GUIDE
ETCH
GUIDE
ETCH
SG
AMP-REF.
AMP-IN
+15V
-15V
6 1/2" BLACK
4 1/2" BLACK
4 1/2" BLACK
GREEN WIRE
M500
PRODUCTION NOTES
4 1/2" YELLOW
4 1/2" YELLOW
PT#8664PT#8664
VER 9.00
M500
-15V
+15V
GND SIG_GND
SIG_OUT
P:\500V90.PRN

YORKVILLE NAME: PCB#&VER:
MODELS: SCH ISSUE:
TITLE:
DATE:
M1098
MM-4_MM-4CE
M1098
AUG/31/00
AMPLIFIER_150W
1.70
TB6
TB5
TB7
MJE15030
Q8
WC5
2u2
63V
C3
1n2
C12
MJ15031
Q10
MJL21193
Q9
MJL21194
Q11
33R
R29
1n
C11
100K
R5
100K
R6
33R
R46
270K
R50
SRT
150W/4R
OUTPUT
JB11
2
3
4
5
6
3R9
2W
R38
16V
1N5246A
D8
BC560
Q6
16V
1N5246A
D9
D16
270R
R14
SRT
150W/4R
OUTPUT
JB21
2
3
4
5
6
D15
D2
A
C
NC
E
C
B
4N35
U2
1
2
34
5
6
0R15
5W
R31
0R15
5W
R33
1/2
33078
U1
6
5
7
20K
R12
D13
D1
MPSA56
Q5
D14
68R
R36
100p
C9
1N5402
D11
1N5402
D12
390R
R13
D17
150R
R27
150R
R28
100n
C4
100n
C5
MPSA06
Q4
750R
R15 BAT85
D3
1
5uHL1
220n
C8
BC560
Q1
47pF
C2
1/2
33078
U1
2
3
1
7K96
R3
681R
R4
4K12/0.1%
R1 10R
1W
R37
4K12/1%
R25
4K12/1%
R26
33R2
R21
274R
R20
274R
R23
33R2
R24
BC550
Q7
5K36
R18
4148
D5
4148
D6
BC550
Q2
330u
25V
C6
100u
25V
C7
2K2
2W
R30
2K2
2W
R35
4148
D7
4148
D10
BAT85
D4
MPSA56
Q3
390R
R10
10K
R8
12K
R11
33u16V
C1
CW
4K7
A
R9
120R
R19
TB2
TB3
TB1
TB4
2
25V
2u2
C21
D25
2M2
R43
25V
2u2
C20 10K
R42
22V
5251B
D24
CSA
4n7
C22
CSA
22n
C23
2.5A-SB
F3 SW1
6A-FB
F2
6A-FB
F1
4004
D22
4004
D23
2K2
R41
63V
4700u
C19
63V
4700u
C18
PX6A02
D20
PX6A02
D21
PX6A02
D19
60Hz
150VA
#1396
T1
PX6A02
D18
470R
R40
100n
C16
15K
R34
100n
C15
16V
500mW
D27
16V
500mW
D26
MJF6388
Q12
15K
R32
MJF6668
Q13
100R
1W
R17
100R
1W
R16
100n
C14
470R
R39
2N5638
Q14
953R
R44
37K9
R2
3
TP
100n
C17
WC2.
10R
R47
MJL21194
MJL21193
ECB
WC3
BCE
MJE15031
MJE15030
WC1.
EBC
BC560
WC1
EBC
BC550
WC2
MJF6668
ECB
MJF6388
ECB
DSG
2N5638
EBC
MPS-A56/A06
BC550
Q15
C23
680n
C22
4n7
T1.6A
F6,3A
F1.
F6,3A
F2.
4148
D29
390R
R45
4148
D28
10R
R49
33R
R48
PT#1398E
230/245VAC
50Hz
177VA
10N
C10
10N
C24
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
AUG/31/00
JUN/08/00
MAR/08/99
.
JAN/11/99
JUN/04/98
D
FEB/12/96
.
JUL/05/95
1.70
1.60
1.50
.
1.40
1.30
.
1.20
.
1.10
PC#6205_NA-XFMR_#1298->#1396
NA_FUSE_3A-SB->2.5A_SB
ADD_D30
Q15
THERMISTOR_100K->10K_ADD_R50,R51,
CE_XFMR_1298E->1398E_TOROID
.
.
.
.
MM-4
M1098.SCH_DATABASE_HISTORY
33K
R51
4148
D30
T
10K RT1
TLP62_OPTOLED
-15V-15V
-15V
CLP2
+16V_BAT
+16V_BAT
-16V_BAT
-16V_BAT
+15V
+15V
+15V
+15V
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+45.5V
+45.5V
+45.5V
-45.5V -45.5V
-45.5V
AMP-IN
CORRECT AC CAP
PC#4971 ADD BATTERY BYPASS CIRCUIT
PC#4850/4851 DELETE R7, C13,
R19 510R TO 120R ADD D26,D27,R45
BRN/BLK
BRN
BLUE
230V
245V
CONNECT TO M500
(35.5VAC)
(35.5VAC)
PIN 4 U1
PIN 8 U1
EXPORT AC PRIMARY
PT#3702
SWITCH
SEMKO APPRVD
GR/YEL
BLUE
BROWN
ACROSS TP1 AND TP2
1. ADJUST R9 FOR 3.0 mV BIAS
-.58V
+.60V
+.67V
-.58V
-.85V
1.2 VRMS
25.4 VRMS
GAIN = 20
150 WATTS @ 4R
AMP-REF.
SG
3. TEST POINT
HEAT SINK
2. Q3 IS THERMALLY COUPLED TO
NOTES:
8
7
6
5
PREAMP PCB
ENCLOSE CIRCUITRY IS OFF-PCB.
CHASSIS
120V A.C 60HZ LINE
GREEN
WHITE
BLACK
MX1
4
3
2
1

VCD
M1098-5.00
SOLDERSIDE M1098-5.00
BLANK SIZE=15.800" X 6.700"
WC1
WC2
D30
4148
WC1.
WC3
J13
J12
J16
J18
R15 750R
R2 37K90
D2
4148
D1
4148
D14
4148
D17
4148
D16
4148
C1
33u 16V
C3 2u2
63V
C20 1u
25V
C21
2u2 25V
TP1 TP2
J11
J17
J14
D13
4148
D4
BAT85
D15
4148
Q9
#6991
MJL21193
Q11
#6988
MJL21194
C2
47p
C10
10n
C8
220n
C14
100n
C15 100n
C16 100n C17
100n
C24
10n
C5
100n
C9 100p
J7
R12
20K
OUTPUT
OUTPUT
R50 270K
R37
10R
1W
R38
3R9
1W
R35 2W
2K2
R30
2K2
2W
R16
1W
100R
R17
1W
100R
D24
22V
C6
330u
16V
C7
100u
25V
BE
Q8
MJE15030
#6810
BE
Q13 -15V
MJF6668
BE
Q12 +15V
MJF6388
BE
Q10
MJE15031
#6811
D22
IN4004
D23
IN4004
Q2 BC550
Q1
BC560
Q7
BC550
Q6
BC560
Q3
A56
D10
4148
D6
4148
D25
1N4148
D8
16V
D9
16V
R24 33R2
R23
274R
R28
150R
R4 681R
R26 4K12
R36
68R
R3 7K96
R1
4K12/0.1%
R39
470R
R32 15K
R34
15K
R40
470R
R44953R
R412K2
R4210K
R432M2
R25. 4K12/1%
D28
4148
D5
4148
D29
4148
D7
4148
D3
BAT85
R33
5W
0R15
R31
0R15
5WATT
Q4
MPSA06
Q5 A56
D26
IN5246
D27
IN5246
J15
R51 33K
R27
150R
R94K7
FUNCTION
D12
1N5402
D11
1N5402
R13
390R
R11
12K
R45
390R
R5
100K
R10390R
R14270R
J8
J10
RTV
RTV. Q14
2N5638
U2
4N35
U1 MC33078
F2
.
.
#3414 .
F1
.
.
#3414 .
. .
BAR DOWN
D18
#6434
PX6A02
BAR DOWN
D19
#6434
PX6A02
BAR DOWN
D21
#6434
PX6A02
BAR DOWN
D20
#6434
PX6A02
RT1
10K
CSA-6A-FB/125V
CE-F6,3A/230V
L1
5uH
PART#
TB1
BLK_XFMR
250TAB
TB4
BLK_AC
XFMR
TB2
WHT_AC
XFMR
TB3
BLK_XFMR
250TAB
TB6
YEL._C-TAP
XFMR
TB5
RED_SEC1
XFMR
TB7
RED_SEC2
XFMR
C23
SEE
NOTES
J9 J6
J5
J4 J2 J3
RTV
RTV
RTV
RTV
R19. 120R
R8 10K
R47
10R
R29.
33R
R20
274R
R18
5K36
R46
33R
R48
33R
R49
10R
R6 100K
C11.
1N
C12.
1N2
C4.
100N
R21 33R2
M5XXTO_PRE-AMP
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
D
D
D
D
D
D
D
D
D
D
D
MAR/08/99
JAN/25/99
JAN/11/99
OCT/19/98
AUG/25/98
FEB/09/96
.
.
DEC/06/95
.
.
.
NOV/02/95
.
JUL/06/95
V
V
V
V
V
V
V
V
V
V
V
5.00
.
.
.
4.00
3.20
.
.
3.10
.
.
.
3.00
.
2.00
N
N
N
N
N
N
N
N
N
N
N
MOVE_C19_ADD_D30_TO_THERM_CIRCUIT
PC#5908_ADD_TLP621
REPLACE_THERMISTOR_ADD_R50,R51,Q15
PC#5854_MOVE_C2_AWAY_FROM_U1
PC#5757_REDO_FOR_680N_AC_CAP
PC#XXXX
.
.
PC#4971
.
.
.
PC#4926
D27_R45/R19_510R->120R
PC#4850/4851_REMOVE_R7,C13_ADD_D26
MM-6/MM-4
M1098.PCB_DATABASE_HISTORY
WC2.
C19
PART#5869
4700u
63V
C22
250VAC
4N7
C18
PART#5869
4700u
63V
CSA-6AFB/125V
CE-F6,3A/230V
Q15
BC550
O/P
J1
U2A
TLP62_
AMP-IN
+15V
-57V
+57V
AGND
AGND
AGND
AGND
AGND
O/P
O/P
-15V
CLP2
VER:5.00
CSA-6AFB/125V
CE-F6,3A/230V
CE-F6,3A/230V
CSA-6A-FB/125V
SERIAL#
BROWNYELLOW
YELLOW
2-OZ COPPER
M1098
ASSEMBLY M1098-5.00
SPACER
#8607
Q3
STUFF U2 4N35 OR U2A TLP621 NOT BOTH4
TRANSISTOR MOUNTING3
Q9/Q11
Q8/Q10
SPACER
SPACER
#8607
#8607
ECB
ECB
C23 FOR EXPORT (CE,S,E) IS 680N PT#5266
C23 FOR NORTH AMERICA IS 22N PT#64352
THERMISTOR MOVED
AWAY FROM U2.
CIRCUIT FOR OP AMP. MOVE DIODES
ADD BATTERY VOLTAGE BYPASSING
MM-6 AND MM-4
1 NOTE LOCATION OF YELLOW SPEAKER WIRE FOR
PRODUCTION NOTES
FOR MM-4
FOR MM-6
OUTPUT WIRE
OUTPUT WIRE
WITH STEP AND REPEAT
REMOVE MIRROR IMAGE AND REPLACE
BLANK SIZE=15.800" X 6.700"PCB MECH M1098-5.00

YORKVILLE NAME: PCB#&VER:
MODELS: SCH ISSUE:
TITLE:
DATE:
M520-1.10
MM-4
M520MM4.SCH
AUG\29\94
MM4_PWR_AMP
1.10
D1
10V 2N2
C18
5K6
R51
470R
R31
1K
R1
100K
R2
EBC
MPSA93
200R
R4
PILOT
RED
LD1
4K7
R5
4K7
1W
R41
100K
R6
1K5
R7
30K
R8
18K
R9
1K5
R10
68U16V C1
68U16V C2
10K
R3
BC550
Q8
249R
R13
MPSA93
Q9
30K
R52
MPSA43
Q3
MPSA43
Q4
2K7
R14
2K7
R15
BC550
Q10
200R
R16
4K7
R23
249R
R17
BC550
Q11 16V
33U
C6
D4
D5
10K
R18
200R
R12
75v 4p7
C19
BC550
Q12
10V 2N2
C10
10K
R19
60v
470P
C11
S
G
D
N
IRFP250
Q15
S
G
D
N
IRFP250
Q16
0R1
2W
R45
0R1
2W
R46
25v 680P
C12
FE6BTR
D8
FE6BTR
D9
30K
R20
500mW
10v
D10
500mW
10v
D11
MPSA43
Q2
MPSA93
Q13
CBE
BC560C
200R
R21
10v 100N
C15
200R
R22
75v 4p7
C9
BC560
Q14
16V
33U
C7
BAV21
D14
2K7
R24
2K7
R25
200R
R26
47R
R42
2V0
250mW
D12
5K1
R11
100u 63v
C4
D6
D7
68K
R28
68K
R29
470R
R30
16V
33U
C5
IRFP250
GD S
68K
R47
68K
R48
10K
0.5W
R44
25v 2N2
C3
25v 100P
C13
200R
R34
5uH
L1
4u7
63v
C16
D2
MPSA43
Q1
MPSA93
Q7
MPSA93
Q6
4u7
63v
C17
3R9
2W
R9.
MPSA93
Q5
25v
470p
C14
2K7
R27
1N4004
D15
1N4004
D16
22R
R39
10R
0.5W
R49
CBE
BC550C
EBC
MPSA43
100p
C20
30K
R32
100V
100n
C5.
SRT
USE
GOLD
JK1
SRT
USE
GOLD
JK2
IAMP_IN
VA_OUT
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
POUT
OUTPUT
V+
M520
1mA
5mA
OUTPUTS
SYMETRICAL TO WITHIN +/- 10%
NOTE: SUPPLIES MUST BE
GND
V-
I/P
SGND

VCD SHEAR
SHEARSHEAR
SOLDERSIDE M520-1.10
M520-1.10
S D G
SDG
DRILL DETL M520-1.10
1
FUNCTION
J9
D12
2V0
Q1
A43
Q2
A43
Q3
A43
Q4
A43
Q5
A93
Q6
A93
Q7
A93
C15
100N
FUNCTION
R4
200R
47R
D2
4148
R14
2K7
R9
18K
R26
200R
C19
4P7
C21
100N
250V
R16
200R
1
FUNCTION
R30
470R
R12
200R
R52
30K
D1
4148
R20
30K
R6
100K
R15
2K7
J17R24
2K7
R31
470R
R8
30K
R28
68K
R2
100K
R53
2WATTS
3R9
J16
LD1
R
C4
63V
100U
Q8
550
Q13
A93
Q10
550
Q11
550
Q12
550
Q14
560
LINE_IN
C9
4P7
C18
2N2
C3
2N2
C11
470P
C12
680P
C13
100P
C14
470P
C10
2N2
R3
10K
D5
4148
R49
0.5W
10R
R13
249R
R47
68K
R48
68K
BAR DOWN
D9
FE6BTR
PART#
BAR DOWN
D8
FE6BTR
PART#
C16
63V
4U7
FUNCTION
C17
63V
4U7
C1
68U
16V
C2
68U
16V
LINE_IN
R32
30K
Q9
A93
C5
33U
16V
D14
BAV21
C7
33U
16V
J1
J4
J3 J2
D11
10V
C6
33U
16V
R29
68K
R22
200R
J13
R23
4K7
L1
5UH
D6
4148
D4
4148
R18
10K
D16
4004
J6
1
FUNCTION
R51
5K6
R46
5WATTS
0R1
R45
5WATTS
0R1
C20
100P
R7
1K5
J5
D7
4148
R10
1K5
D15
4004
R5
4K7
J8
D10
10V
R19
10K
R41
1WATT
4K7
J7
MC1
FUNCTION
PART#
J10
Q15
PART#6928
IRFP250
Q16
PART#6928
IRFP250
J11J12
R17
249R
R25
2K7
R1
1K
R4410K
R27
2K7
R11
5K1
R39
22R
J15
1
FUNCTION
J14
R21
200R
R34
200R
ASSEMBLY M520-1.10
PCB MECH M520-1.10
YEL
BLK
LINE
BLACK CABLE
RIBBON
LINE
BLACK
FOR MM4 ONLY
STUFF 5 PIN MOLEX
NO PINS FOR MM4
FOR MM4
DO NOT STUFF
I/P SIG
GND SIG
V-
GND
V+
PT#4989
1/2W MINI
V-
GND
V+
S-
S+

82R
0.5W
RX1
82R
0.5W
RX2
82R
0.5W
RX4
82R
0.5W
RX3
390p
YORKVILLE SOUND LTD PCB #:
DESIGN BY: SCH ISSUE:PCB VER: OFDWG #:
FOR MODEL(S):
TITLE:
CAD FILE NAME:
C:\PCAD\EXE\ DATE:
DRAWN BY: 21H.GP.I
3.20
M478-9.0
MM4&MM4E
FEB\10\94 MP4_POWER_AMP.C\MP4.SCH
M478E
220VAC
50HZ
200VA
YSL#1290
4700u
63V
C16
10R
0.5W
R41
10R
0.5W
R42
22n
C14
4700u
63V
C15
8AMP
YSL3411
T1,6A
BRIDGE
BR1
YSL6422
120VAC
60Hz
200VA
YSL#1283
4700u
63V
4700u
63V
8AMP
YSL34112.92A BRIDGE
BR1
YSL6422
10N
4u7
63V
C11
MPSA06
EBC
MPSA56
1K3
R5
SRT
JB2
SRT
JB1
5uH
L1
3V0
BZX79C
ZD3
MPSA56
Q8
62K
R21
33K
R2
7K5
R20
CW
470R
A
RT1
470p
C5
0R18
5W
R37
1K5
R36
1K5
R35
RED
LD2
470R
R34
D2 180R
R26
MJH11017
Q10
BDV67D
Q9
51K
R33
0R18
5W
R38
MJE340
ECB
2K7
R43
1K5
R32
1K
R30
10n
C13
10n
C12
100R
R27
MPSA56
Q7
1K
R29
4R7
0.5W
R40
D5
51K
R31
MPSA06
Q6
D9
D8
D4
10R
R13
MJE340
Q4
1n5
C10
680R
R15
RED
LD1
D6
470p
C6
1K8
0.5W
R22
1K8
0.5W
R25
1K8
0.5W
R24
MPSA06
Q5
3K3
R6
4R7
0.5W
R39
MJH11017
BDV67D
BCE
680R
R16
33K
R19
10p
C7
15K
R17
100R
R11
100R
R10 1K5
R12
MPSA06
Q3
D3
D7
16v
68u
C8
1K5
R18
4K7
R7
15p
C4
BAV21
D1
1K8
0.5W
R23
180R
R14
4K7
R3
15K
R4
63V
4u7
C3 16V
BZX79C
ZD2
MPSA56
Q2
MPSA56
Q1
470p
C2
25V100u C9
33V
BZX79C
ZD1
220n
C1
1K
R1
1K5
R28
GND
+45VDC
+45VDC
+45VDC
YORKVILLE PART # 6803
SELECTED MJH11017 ARE
NOTE:ADJUST RT1
FOR 7mv BETWEEN
TP1&TP2 COLD
FOR EUROPEAN UNITS ONLY
NOTE:ADJUST RT1
FOR 2.5-3.0mv BETWEEN
TP1&TP2 COLD
CHASSIS MOUNT PARTS NOT ON PCB
CHASSIS MOUNT PARTS NOT ON PCB
SELECTED
2. Q5 IS THERMALLY COUPLED TO THE HEAT SINK
WHITE
-45VDC
-45VDC -45VDC
LOAD
MINIMUM
4 OHM
JACKS
OUTPUT
SPEAKER
GREEN
TP2
TP1
NOTES:
1. ALL UNMARKED DIODES ARE 1N4148.
BLACK
YSL3695 +45VDC
EUROPEAN POWER SUPPLY
BROWN
Y/GREEN
BLUE
-45VDC
1.5V
1.0 V
-43.5 VDC
-12.6 VDC
-1.4 VDC 6.2V
0.2V
-44.2 VDC
-44.8 VDC 1.0 V
-1.4 VDC
26.5 V
26.3 V
-1.1 VDC
24.5 V
1.1 V
+0.15 VDC
4.0 V
+0.15 VDC
+4.8 VDC
+24.7 VDC
24.6 V
+0.12VDC+0.67 VDC
-42.2 VDC
-42.9 VDC
1.0 V
AC I/P VOLTAGE
1.1v
+0.12 VDC
+16 VDC
DIFFERENTIAL
VOLTAGE THE POINTS INDICATED
AS MEASURED BETWEEN
ALL VOLTAGES MEASURED WITH RESPECT TO GROUND
AC VOLTS MEASURED INTO 4 OHM LOAD
DC VOLTS MEASURED NO SIGNALDC VOLTS
AC VOLTS WITH AC PRIMARY AT RATED LINE VOLTAGE
U:\M478V32.PRN

VCD
M478-10.00
SOLDERSIDE M478-10.00
TP2
TP1
SEP 91
DETL M478-10.00
D6
4148
R42
0.5WATT
10R
R41
0.5WATT
10R
R21
62K
R20 7K5
R16
680R
R35
1K5
R15
680R
R34
470R
R30
1K
R28
1K5
R29
1K
R3
4K7
R11
100R
R14
180R
R13
10R R6
3K3
R10
100R
R17
15K
R7
4K7
R36
1K5
R4
15K
R22
0.5WATT
1K8
R23
0.5WATT
1K8
J6
ZD3
3V
D4
4148
D8
4148
D7
4148
C6
470P
C12
10N
C11
4U7 63V
J1
C5
470P
500*60,B
BAV21
D1
C4
15P
390P
J4
ZD1
33V
C14 22N
400V
C1
220N 100V
R39
0.5WATT
4R7
R40
0.5WATT
4R7
0.5WATT
510R
0.5WATT
510R
0.5WATT
680R
0.5WATT
510R
0.5WATT
510R
R1 1K R2 33K
ZD2
16V
C3
4U7 63V
C2 470P
R19 33K R33 51K
D9
4148
D2
4148
D3
4148
C7 10P
0.5WATT
680R
FUNCTION
0.5WATT
680R
0.5WATT
680R
R18
1K5
R5
1K3
R12 1K5
R32 1K5
R31 51K
R27 100R R26 180R
R43 2K7
C10 1N5
C13 10N
D5
4148
C8
68U 16V
AC
AC-
+
6422
R25
0.5WATT
1K8
LD1
COLOR
LD2
COLOR
R37
R18
5WATT
R38
R18
5WATT
R24
0.5WATT
1K8
C9
100U
25V
PART#
BDV67D
470R
IDLE
LINE_IN
PART#6803
MJH11017
Q2
MPSA56
Q1
MPSA56
MPSA06
Q8
MPSA56
Q7
MPSA56
Q6
MPSA06
Q5
MPSA06
Q4
MJE340
FUNCTION
#3892
LINE_IN
5uH
PART#
15K
C16
PART#5859
4700U
50V
C15
PART#5859
50V
4700U
ASSEMBLY M478-10.00 PCB MECH M478-10.00
M478
STIR STICK
IN 0.25"
STAND MPSA06
#8793 NUT
#3501 BELL WASHER
#8792 SCREW
MOUNT Q4 WITH
ON M478E ON LEADS OF R37 AND R38
FOR EURO SEMKO ADD #8629 SPACER
UNDER THE MPSA06
FOR THE BDV60 IS NOT
BE SURE THAT THE MICA
UNDER MSA06
USE THERMAL COMPOUND
UNDER PCB
BRIDGE LEGS
BEND AND CRIMP
#8830
BRIDGE
HEAT SPREADER
PCB
#8820 WASHER
#8800 NUT
#8800 NUT
#8800 NUT
DEVICE DEVICE
M461
HE T
SPRE DER
#3563 BRACKET
PT# 3800 PT# 3800
BELLY BUTTON BELLY BUTTON
WASHER PT#3511 WASHER PT#3511
WASHER PT#3511
BLACK WIRE
M478A = 9 1/2"
M478C+M478E = 7"
4" YELLOW (5" BLACK FOR M478E)
6" BLACK (7" BLACK FOR M478E)
P:\478.PRN