Traynor AM50 - SERVICE User manual

U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
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
SERVICE MANUAL
AM50T
MODEL TYPE: AM50

IMPORTANT SAFETY INSTRUCTIONS
safety-4v3.eps • Oct. 26/05
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.
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
Read Instructions
The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instruc-
tions for future reference.
Packaging
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Warning
When using electric products, basic precautions should
always be followed, including the following:
Power Sources
Your unit should be connected to a power source only of the voltage
specified in the owners manual or as marked on the unit.This unit has a
polarized plug. Do not use with an extension cord or receptacle unless
the plug can be fully inserted. Precautions should be taken so that the
grounding scheme on the unit is not defeated.
Hazards
Do not place this product on an unstable cart, stand, tripod, bracket or
table.The product may fall, causing serious personal injury and serious
damage to the product. Use only with cart, stand, tripod, bracket, or
table recommended by the manufacturer or sold with the product.
Follow the manufacturer’s instructions when installing the product and
use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water;
no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the
external wiring connected to these terminals require installation by an
instructed person or the use of ready made leads or cords.
Ensure that proper ventilation is provided around the appliance.
No naked flame sources, such as lighted candles, should be
placed on the apparatus.
Power Cord
The AC supply cord should be routed so that it is unlikely that it will be
damaged. If the AC supply cord is damaged DO NOT OPERATETHE UNIT.
Service
The unit should be serviced only by qualified service personnel.
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
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 consultations ultérieures.
Emballage
Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
Attention:
Lors de l’utilisation de produits électrique, assurez-
vous d’adhérer à des précautions de bases incluant
celle qui suivent:
Alimentation
L’appareil ne doit être branché qu’à une source d’alimentation
correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur
l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée.
Ne pas utiliser cet appareil avec un cordon de raccordement à moins
qu’il soit possible d’insérer complètement les trois lames. Des
précautions doivent êtres prises afin d’eviter que le système de mise à
la terre de l’appareil ne soit désengagé.
Risque
Ne pas placer cet appareil sur un chariot, un support, un trépied ou une
table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir
des dommages importants. Utiliser seulement un chariot, un support,
un trépied ou une table recommandés par le fabricant ou vendus avec
le produit. Suivre les instructions du fabricant pour installer l’appareil et
utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes
nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des
éclaboussures et qu’aucun objet rempli de liquide tel que des vases
ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties
dangereuses au toucher et que les câblages extérieurs connectés à
ces dispositifs de connection extérieure doivent être effectivés par un
opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’Alimentation
Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil.

YS-118PW
YS No. Description Qty. YS No. Description Qty.
6405 RED 3MM LED 1V7 5MA BRT 2 4599 22AWG SOLID SC WIR T&R JMP 41
6408 GRN 3MM LED 1V9 5MA FROSTED 1 5299 24AWG SOLID SC WIR RAD JMP 2
6825 1N4148 75V 0A45 DIODE T&R 7 4675 1/2W 10R 5% T&R RES 2
6438 1N4007 400V 1A0 DIODE T&R 1 4816 1/4W 33R 5% T&R RES 1
6827 1N5402 200V 3A0 DIODE 4 4704 5.0W 33R 5% BLK RES 1
6822 1N4745A 16V0 1W0 ZENER 5% T&R 2 4897 1/4W 120R 5% T&R RES 2
6824 1N5246B 16V0 0W5 ZENER 5% T&R 1 4857 1/4W 220R 5% T&R RES 4
5105 MPSA13 TO92 NPN TRANS DARL T&
R
2 4770 1/4W 249R 1% T&R RES 2
6755 LM3876T IC 40 WATT POWER AMP 1 4655 1/2W 330R 5% T&R RES 8
6798 MC4741CP IC QUAD OP AMP 1 4799 1/4W 562R 1% T&R RES 2
6840 MC33078P IC DUAL OP AMP 1 4981 1/4W 1K 5%MINI T&R RES 3
6882 TL072CP IC FET DUAL OP AMP 4 4824 1/4W 1K5 5% T&R RES 3
6889 TL074CN IC QUAD O/A T.I ONLY 2 6113 1/4W 2K 5%MINI T&R RES 3
5402 _15P 100V 10%CAP T&R BEAD NPO 2 4883 1/4W 2K49 1% T&R RES 1
5199 100P 100V 2%CAP T&R RAD CER.2"NPO 2 4827 1/4W 4K7 5% T&R RES 5
5410 100P 100V 10%CAP T&R BEAD NPO 3 4639 1/4W 4K99 1% T&R RES 4
5420 680P 50V 10%CAP T&R BEAD NPO 2 4893 1/4W 5K1 5% T&R RES 1
5422 __1N 50V 10%CAP T&R BEAD NPO 4 4863 1/4W 8K2 5% T&R RES 2
5208 __2N2 400V 5%CAP T&R RAD .2"FLM 2 4800 1/4W 10K0 1% T&R RES 12
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4829 1/4W 10K 5% T&R RES 9
5204 _10N 100V 10%CAP T&R RAD .2"FLM 2 6116 1/4W 10K0 1%MINI MF T&R RES 3
5207 _18N 100V 5%CAP T&R RAD .2"FLM 2 4830 1/4W 15K 5% T&R RES 2
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 6123 1/4W 20K0 1%MINI MF T&R RES 2
5308 _47N 50V 10%CAP T&R BEAD X7R 1 4840 1/4W 33K 5% T&R RES 2
5310 _68N 50V 10%CAP T&R BEAD X7R 1 4834 1/4W 47K 5% T&R RES 2
5228 100N 100V 5%CAP T&R RAD .2"FLM 1 4803 1/4W 49K9 1% T&R RES 1
5314 100N 50V 10%CAP T&R BEAD X7R 15 4836 1/4W 68K 5% T&R RES 1
5230 180N 63V 5%CAP T&R RAD .2"FLM 1 6120 1/4W 100K 5%MINI T&R RES 5
5317 180N 50V 10%CAP T&R BEAD X7R 1 4849 1/4W 180K 5% T&R RES 2
5231 220N 63V 10%CAP T&R RAD .2"FLM 2 4844 1/4W 1M 5% T&R RES 1
5233 330N 63V 5%CAP T&R RAD .2"FLM 1 3586
A
CC# 1BB1C1C SHORT REVERB 1
5234 470N 63V 10%CAP T&R RAD .2"FLM 1 8742 4-40 X 3/8 PAN PH TAPTITE JS500 2
5255 __1U 63V 20%CAP T&R RAD .2"EL 3 8842 #4 X 5/16 PAN QUAD TYPE A JS500 BLK 2
5256 __1U 63V 5%CAP T&R RAD .2"FLM 2 8801 6-32 X 3/8 PAN PH TAPTITE JS500 5
5257 __2U2 63V 20%CAP T&R RAD .2"EL 1 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 4
5945 _10U 63V 20%CAP T&R RAD .2"EL 1 8828 6-32 X 3/4 PAN PH TAPTITE JS500 3
5961 _33U 16V 20%CAP T&R RAD .2"NP 2 8876 #6 X 1 1/2 PAN PH TYPE A JS500 BLK 4
5267 100U 25V 20%CAP T&R RAD .2"EL 3 8763 8-32 X 1/2 PAN PH MS JS500 BLAC
K
2
5630 330U 25V 20%CAP BLK 10X13MM EL 2 8767 #8 X 3/4 PAN PHIL TYPE A JS500 BLK 8
5887 2200U 50V 20%CAP BLK 18X27MM EL 2 8815 8-32 X 3/4 PAN PH TAPTITE JS500 1
4417 _10K 5B LIN 9MM HORIZONTAL P28 2 8749 10-32 X 1/2 QDX PH TAPTITE JS500 1
4418 _10K 5C R/A 9MM HORIZONTAL P28 1 8753 #10 X 1/2 PAN PH TYPE A JS500 BLAC
K
16
4420 _50K B LIN 9MM HORIZONTAL P28 2 8781 #10 X 7/8 FLAT PHIL TYPE A JS500BLK 10
4419 100K B LIN 12MM HORIZONTAL STP27 1 8912 10-32 X 1 FLAT PHIL MS JS500 BLK 2
711 30 X 50 X 1.5MIL PLASTIC BAG 1 8843 10-32 X 1 1/8 FLAT PH MS JS500 2
3804 SNAP ON 1.5" INSULATING BUSHING 1 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 2
8547 PLASTIC FOOT BLACK, POLYETHYLENE 8 8905 YORKVILLE PRODUCT SCHEMATI
C
1
8570 CORNER, 2 LEGS NOTCED LIP BLAC
K
6 3833 8 X 3/8 (250 OD,.171 ID)NY SPACER 3
3463 CLIP 110X020 18-22AWG DISCO/INSL 2 7331 8" 8R 50WPGM SPEAKER 1
3478 CLIP 205/187X032 18-22AWG DISCO/INS 2 8820 #8 FLAT WASHER JS500 4
3489 CLIP 250X032 18-22AWG DISCO/INSL 9 8473 #10 BLACK CUPWASHER SWF-10BK 3
3490 CLIP 250X032 14-16AWG DISCO/INSL 1 3421 DPDT PUSH SW PCMT MAKE B4 BREA
K
1
3601 RING TERMINAL 16AWG WIRE & #8 SCREW 3 3698 SPST ROKR SW QUIK 180" AC PWR BL/BL 1
3682 250 MALE PCB TAB REE
L
10 8468 VELCRO STRAP 3/4"X22CM (VELSTRAP) 1
3795 #8 GROUND LUG ZIERICK 505-169 2 1309 BLOC-40B/40K/40W/50B XFMR 1
3498 1/4" JCK PCB MT HORZ 3
3886 36" RCA DUAL RED-WHITE PREFAB CABLE 1
3914 RCA SNGL PCB MT HORZ 2
3417S 6-32 SCREW TERMINAL PC MNT SNAP-IN 2
3660 XLR FEML PCB MT HORZ 1
3451 EYELET SMALL 0.089 OD PLATED 6
3414 INTERNATIONAL PC MOUNT FUSEHOLDE
R
2
2468 0.800 AMP SLO-BLO .25X1.25 FUSE 1
8451 10" STRAP HANDLE,BLACK METAL ENDCA
P
1
8604 10-32 T NUT 2
7417 8R 30W TWEETER PIEZO TLC 1 1
3745 DUAL XSISTOR PBL SPRING CLEAR ZINC 1
9897 CABINET COVER, BLACK, 54" WIDE 1
3645
A
C SOCKET RECEPTACLE WITH 0.250 TAB 1
3801 5/8" BUMPER BUTTON BLAC
K
1
3803 NYLON SECUR-A-TACH MINI PLASTIC TIE 1
3810 4" NYLON CABLE TIE 5
8642 MAROON KNOB FOR AM WINE RED SERIES 6
8649 BUTTON KNOB FLAT BLACK 1
3428 8' 3/18 SJT AC LINE CORD REMOVABLE 1
3834 HEYCO #1214 STRAIN RELIEF 1
8267 SMALL TRAYNOR LOGO EMBOSSED ALUMIN. 1
8910 YORKVILLE PRODUCT MANUA
L
1
8900 YORKVILLE WARRANTY CARD 2-YR UNLTD. 1
8701 4-40 KEPS NUT ZINC 2
8800 6-32 KEPS NUT ZINC 3
8787 8-32 KEPS NUT ZINC 2
8845 10-32 PEMNUT C-1032-2-Z1 2
8898 1/4-20 CAGE NUT C79 98142027 2
3830 TO218 PREGREASED MICA 56-78-2AP 1
8581 CUSTOM PBL TRANSISTOR SPACE
R
1
4597 22AWG STRAN TC WIR JMP 7

# Part# Description
Labeled Components
1 7417 8R 30W TWEETER PIEZO TLC 1
2 7331 8" 8R 50WPGM SPEAKER
3 Z276 AM50T GRILL
48267 SMALL TRAYNOR LOGO EMBOSSED ALU
58570 CORNER, 2 LEGS NOTCED LIP BLACK
68451 10" STRAP HANDLE,BLACK METAL EN
7 8473/8912 #10 BLACK CUPWASHER /10-32 X 1 FLAT PHIL MS JS500 BL
8 8770/8817 1/4-20 X 1 5/16 TRUSS PH MS JS500/#10 FLAT WASHER
93645 AC SOCKET RECEPTACLE WITH 0.250
10 8468 VELCRO STRAP 3/4"X22CM (VELSTRA
11 8547 PLASTIC FOOT BLACK, POLYETHYLEN
12 3450 1/4" JCK PCB MT HORZ, GOLD
13 8642 MAROON KNOB FOR AM WINE RED SER
14 3421/8649 DPDT PUSH SW PCMT MAKE B4 BREAK/BUTTON KNOB
15 3660 XLR FEML PCB MT HORZ
16 3698 SPST ROKR SW QUIK 180" AC PWR B
17 3428 8' 3/18 SJT AC LINE CORD REMOVA
18 3586 ACC# 1BB1C1C SHORT REVERB
19 3688 36" RCA DUAL RED-WHITE PREFAB C
20 2468 0.800 AMP SLO-BLO .25X1.25 (Internal Fuse)
21
22
*NOTE: Replacement grills & HF Driver supports are 'Special-Order' and are only available while the model is in production.
** Internal Lightbulb not shown
6
4
3
12
79
not shown
18/19/20
17
10
5
4
3
5
8
11
16
12 14
13 15
Parts-Serv-AM50T-1v0.xls ftp.yorkville.com Speaker Enclosure

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A
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C
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D
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H
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I
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J
J
K
K
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M
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N
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O
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P
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Q
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W
X
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AA
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2
M571-8V00sch.sch2002
Date:
Product
PCB# of
Rev:
Sheet 1
8V00
Filename:
Fri Oct 20, 2006
M571
AM50
2
M571-8V00sch.sch2002
Date:
Product
PCB# of
Rev:
Sheet 1
8V00
Filename:
Fri Oct 20, 2006
M571
AM50
5
4
8"
8R
T400mA
400V
1
2
3
C7
25V100U
4148
D26A
1/4W
MINI
100K
R40
680P 50V
C15A
C17A
63V 10U
100P 100V
C3
1/4W
.
10K0
R89
680P 50V
C16A
1N5246B 16V0
ZD4A0W5
4n7
250V
22n
230VAC
1/4W
MINI
10K0
R4
22N 275V
C32
100N 50V
C27A
15P 100V
C12
1/4W
.
10K0
R12
1/4W
.
10K0
R14
C100
63V 1U
18N 100V
C60
470N 63V
C62
100N 100V
C63
1/4W
.
10K0
R82
C18
63V 2U2
1/4W
.
15K
R22A
4R
#7415
50Hz
1/4W
.
1M
R3
1/4W
.
10K0
R8
1/4W
MINI
10K0
R19
U1:A
TL072
100P 100V
C4
1/4W
.
49K9
R7
1/4W
.
4K99
R49
C6
16V33U 1/4W
.
120R
R9
C9
16V33U
M
5B LIN
P1:A
4417
10K
VOLUME
1/4W
.
1K5
R70
GRN
LD3
{Function}
6408
1/4W
.
1K5
R66
1N5402
D4
1N5402
D2
1/4W
.
120R
R53
1/4W
MINI
1K
R35
1/2W
.
330R
R201
C25
50V2200U
1/2W
.
330R
R206
1/2W
.
330R
R204
C8
25V100U 1/4W
.
33K
R18A
TO92
MPSA13
Q10A 5105
1/4W
.
4K7
R45
4148
D26
4148
D31
1/2W
.
330R
R203
C27
25V330U
1/2W
.
330R
R207
1/2W
.
330R
R205
1/4W
.
33K
R65A
1/4W
MINI
1K
R48
1/4W
.
4K7
R46
1/4W
.
47K
R47
1/4W
MINI
100K
R65
1N4745A 16V0
ZD21W0
100N 50V C150
1/4W
.
8K2
R26
100N 50V
C58
1N 50V
C22
1/4W
.
2K49
R41
100N 50V
C41
1/4W
.
220R
R32
1/4W
.
220R
R30
1/4W
.
220R
R29
1/4W
.
220R
R28
1/4W
.
10K0
R42
1/4W
MINI
100K
R55
100N 50V C151
1/4W
.
4K7
R50
U5:B
TLO74CN
100N 50V
C50
C121
63V 2U2
100N 50V
C43
1/4W
.
10K
R18
1/4W
.
1K5
R16
1/4W
.
15K
R83
1/4W
.
10K0
R80
1/4W
MINI
100K
R161
100P 100V
C16
1/4W
.
68K
R17
1/4W
.
10K0
R84
1/4W
.
10K0
R85
1/4W
.
4K7
R51
2N2 400V C67
1/4W
MINI
2K
R87
10N 100V
C66
15P 100V
C1
180N 50V
C23
1/4W
MINI
100K
R13A
1/4W
.
10K
R91
68N 50V C68
C19
63V1U
1U 63V
C21A
1/4W
.
249R
R64
1/2W
.
10R
R25A 4007
D5A
#7322
3.75"
BROWN
BLUE
GRN/YEL
1N5402
D3
1N5402
D1
C26
50V2200U
1/2W
.
330R
R202
1/4W
.
180K
R52
1/2W
.
330R
R39
C28
25V330U
1N4745A 16V0
ZD31W0
1/4W
.
47K R33
100N 50V
C57
8
V+
4V-
U1:C
100N 50V
C44
8
V+
4V-
U2:C
U3:B
TL072
100N 50V
C40
4
V+
11 V-
U5:E
1/4W
.
10K0
R44
100N 50V C152
8
V+
4V-
U7:C
4
V+
11 V-
U8:E
M
B LIN
P6:B
4419
100K
NOTCH
100N 50V
C45
8
V+
4V-
U10:C
1/4W
.
10K0
R81
S2:B
3436
NOTCH
M
5B LIN
P3:A
4417
10K
REVERB
1/4W
.
10K
R15
1/4W
.
10K
R101
"STYLE_P27"
BC
TO-92
MPSA63
MPSA43
2N5551
E
MPSA56
MPSA06
MPSA13
2N5401
220N 63V
C23A
5.0W
.
33R
R24A
S TR
-
--
J3
5
4
1
2
3
XF1
#1309
60Hz
120VAC
#1309E
10N 100V
C2
4N7 250V
C30
4148
D10
4148
D6
1/4W
.
180K
R31
18N 100V
C61
1/4W
.
10K
R2
SPST Switch
S1
CE POWER SUPPLY
1/4W
.
562R
R6
U2:B
MC33078P
M
5C R/A
P5:A
10K
GAIN
1N 50V
C13
1/4W
.
4K99
R34
RED
LD1
{Function}
6405
M
B LIN P4:A 4420 50K TREBLE
1N 50V
C11
U1:B
TL072
M
B LIN
P2:A
4420
50K
BASS
1/4W
.
10K0
R10
100N 50V
C10
RED
LD2
{Function}
6405
TO92
Q10 5105
MPSA13
100N 50V
C270
U8:D
MC4741CP
U8:C
MC4741CP
U8:B
MC4741CP
U8:A
MC4741CP
47N 50V C21
4148
D25
U3:A
TL072
U5:A
TLO74CN
1/4W
.
10K
R105
4148
D60
6541
J5
RCA SNGL PCB MT HORZ K901
TO REVB INPUT
6541
J6
RCA SNGL PCB MT HORZ K901
TO REVB OUTPUT
180N 63V
C15
U6:A
TLO74CN
1/4W
.
5K1
R43
U5:C
TLO74CN
1/4W
.
33R R90
1/4W
MINI
2K
R86
2N2 400V
C64
U6:D
TLO74CN
1/4W
.
10K
R21A
C18A
25V 100U
1/4W
MINI
1K
R20A
100P 100V
C51
1/4W
.
10K
R100
1/4W
.
4K99
R62
1/4W
MINI
20K0
R59
330N 63V
C55
1/4W
.
249R
R63
U7:B
TL072
1/4W
.
4K99
R61
100P 100V
C56
1U 63V
C22A 1/2W
.
10R
R23A
-
+_SP1
{Value} +
-
_SP2
{Value}
F1
3414
FUSEHOLDER
3660
J1
{Function}
1/4W
.
562R
R5
1/4W
MINI
10K0
R11
S TR
-
--
J2
1N 50V
C14
8
V+
4V-
U3:C
1/4W
.
4K7
R25
1/4W
.
8K2
R27
100N 50V
C42
4
V+
11 V-
U6:E
U6:B
TLO74CN
220N 63V
C65
U6:C
TLO74CN
1/4W
MINI
2K
R1
NC
V_IN+
V_IN-
MUTE
GND
NC
NC(+)
V-
OUTPUT
NC
V+
11 10
9 8 7 6 5 4 3 2 1
LM3876T
1/4W
.
10K
R103
U7:A
TL072
1/4W
MINI
20K0
R60
6882_PC 6840_PC
6889_PC 6798_PC
ST R
---
J4
LINE OUT
U10:B
TL072
U2:A
MC33078P
U5:D
TLO74CN
U10:A
TL072
M
B LIN
P6:A
4419
100K
NOTCH
"STYLE_P28"
2NC1
6NC2
11 NC3
LM3876T
U4
REF KNOBPART#
MODEL(S):-
FUNCTION
R
R
R
R
R
P5
P6
R
P2
P3
P4
P1
F
F
F
F
F
GAIN
NOTCH
F
BASS
REVERB
TREBLE
VOLUME
K
K
K
K
K
.
.
K
.
.
.
#8641
P
P
P
P
P
#4418
#4419
P
#4420
#4417
#4420
#4417
M571 POT LIST
N
N
N
N
N
N
N
N
N
N
N
AS OF
SEP/05
EC2
AM50
13
10
7
4
1
9
11
12
8
#
2
3
5
6
VER#
MODEL(S):-
DATE DESCRIPTION OF CHANGE
V
.
7.00
.
3.00
V
V
8.00
6.00
5.00
.
4.00
D
.
JUL/05/05
.
JAN/18/00
N
PC#7094 SWITCH #3421 TO #3436
MAKE CE COMPLIANT FOR AC CLEARANCES
AND MASK FOR RCA JACKS
ADD POT CHART
AM50
D
D
SEP/2005
MAR/31/05
AUG/26/02
.
JAN/15/02
N
N
PC#7125 RCA JACKS #3914 TO #6541
CONVERT TO PCAD2002
PC#6867 REDO SOLDERMASK
MAKE ALL LED LEADS THE SAME LENGTH
LED. NEW SOLDERMASK FOR TABS. PC#6484 NEW DRILL
PC#6250 MOVE C2 AWAY FROM J2. PC#6177 MOVE RED
M571 Database History
..

VCD
.020"
.005"
.008"
.012"
LOC
BEC
.020"
.005"
.008"
.012"
.020"
.005"
.008"
.012"
GAGE
ROUTE
0.01"/HOLE
CLINCH
ORIGIN LONG AXIS
SHORT AXIS
INSERT
ORIGIN
8V00
BlankSize - 12250x7950
Pcb Mech M571
TAB
NORMAL
SOCKET
SOCKET WITH DIRECTION
NORMAL LARGE
SOCKET UPSIDE DOWN
REPLACE WITH SAME VALUE FUSE
CE T400MA 250V
RED YEL
7415 LESON
8V00
BLK
NA 0.8A 250V SB
Top Assy M571
7331 8" 8 OHM JENSEN
SEE LAYOUT DOCUMENTATION
V
T
R
V
T
R
V
T
R
GUIDE
ETCH
-
+
V
T
R
V
T
R
BAR DOWN
-
+
BAR DOWN
7
V
T
R
G1
G3
G2
SIG
RCA
G1
G3
G2
SIG
RCA
GUIDE
ETCH
BAR DOWN
-
+
V
T
R
7
V+A
NC1
OUT
V-
V+B
GND
MUTE
IN-
IN+
NC3
NC2
12
3
BAR DOWN
GUIDE
ETCH
7
BASS
NOTCH
LINEOUT
TO REVB INPUT
TO REVB OUTPUT
NOTCH
TREBLE
VOLUME
REVERB
GAIN
3601
6405
6827
3417
4420
3436
6405
6827
3414
6451
6541 6541
6827
6408
3601
6435
4419
4420
4417
6755
3660
4417
4418
6827
3417
100P
100N
10K0 10K
10K0 100P 330R
1/2W
4K7
5K1 100N
33R
10K0
16V0
100K
10K0
100N 1/2W
330R
330R
1/2W
10K0
100P
4K7 10K
20K0 20K0 4K99 100P
4148
4148
220R 220R
100K
180K
100P
120R
100N
100N
47K
180N
1K
15P
10K0
10K0
10K0
2N2
680P 680P 100K
1K
33K
68N
2K
100N
15P
4148
100N
4K99 4K99
180K
1U
63V
10K
10N
1M
4148
8K2
1N 47N
4148
10K
10R
1/2W
220N
RED
49K9
33U
16V
10K0
MC4741CP
8K2
1N
10K0
TL072
18N
100N
180N
1K5 330R
1/2W
330R
1/2W
25V
100U
2K49
10K0
1U
63V
TLO74CN
100K
2U2
63V
TL072
100N
330R
1/2W
25V
330U
16V0
1U
1U
470N
100N
1/2W
330R 330R
1/2W
10K0
2N2
1K
10R
1/2W
33U
16V
100N
TL072
100N
330N
10K
1N5402
249R
249R
4K99
100N 220R
10K0
100U
25V
220R
4K7
4K7 4148
47K
100N
4K7
50K
BLIN
68K
100K
330U
25V
18N
4007
16V0
220N
TLO74CN
10K0
15K
10K0
10U
63V
MPSA13
10N
4148
33K 10K
1N
RED
15K
MC33078P
562R
1N
10K 1K5
1N5402
4N7
250V
10K
100U
25V
100N
2K
2U2
63V
TL072
MPSA13
1K5
562R 120R
100N 1N5402
GREEN
22N
275V
100K
BLIN
50K
BLIN
10K
5BLIN
10K
LM3876T
2200U
50V
10K
5BLIN
10K
5CR/A
1N5402
5.0W
33R
2200U
50V
2K
8V00
AM50
M571
C4
C57 X37
X2
R44 R18
R12
X6
C16 R202
R50
X34
R43 C45 X31
R90
R80
ZD2
R161
X12 R89
C63 X43 R205
W5
GND
X44
R204
X50
X28
R19
X20
X21
C51
R51
R101
R60 R59 R61
C56
D26
D31
R28 R30
R65
R31
C3
R9 X39
X9 X38
C42
C10
R47 C23
R48
C12
X32
R81
R42
R82
C64
C16A
C15A
R13A
R20A
R65A C68
R87 X1
C41
C1
D26A
C27A
X18
X13
R34 R49 X26
X101
X47
R52 X75
C19
X48
R91
C2
R3
D6
R26
C22
X7
C21
X4
X5
X14
X41
D10
R2
R23A
C23A
TAB3
W3
W4
LD2
R7
C6
R8
U8
R27
C11
R10
U3
C60
C150
C15
R16 R203
R39
C18A
X36
X35
R41
R14
C100
U5
R40
C18
U10
C43
R201
C28
ZD3
C21A
C22A
C62
C40
X42
X110
R207
R206
R11
C67
R35
X29
X10A
R25A
C9
C44
TAB5
SEC GND
X23
U7
C151
C55
R100 D1
TAB9
RED
SPKR +
W6
R64
R63
R62
TAB1
TO XFMR
BLK
TAB7
XFMR SEC
RED
C270 R29
R4
X45
C7
R32
W7
X3
R45
R46
D60
R33
C50
R25
BOTTOP
WIP
P2
X11
X40 R17
R55
C27
C61
D5A
ZD4A
C65
U6
X30X46
R85
R83
S2
R84
C17A
X15
Q10A
C66
X16
X19
D25
R18A
R15
C13
LD1
R22A
U2
R5
C14
X25
X24
R103
X60
R66
D3
J4
-
-
-
TAB4
AC HOT
F1
C30
TAB6
XFMR SEC
RED
X8
R105
C8
C58
R1
C121
U1
Q10
R70
J5 J6
R6
R53
C152
D2
TAB8
SPKR (-)
BLACK
TAB10
YELLOW
TWEET +
LD3
W2BLK
TO AC SW
C32
TAB2
AC COMMON
BOTA
BOTB
WIPA
TOPA
WIPB
TOPB
P6
J2
-
-
-
BOTTOP
WIP
P4
BOTTOP
WIP
P1
R21A
U4
C26
J1
BOTTOP
WIP
P3
BOTTOP
WIP
P5
D4
X27
R24A
W8
W1
BLK
TO AC SW
C25
J3
-
-
-
R86

TL072CN
TL074CN
MC33078P
MC4741CP
BEND THE LEADS OVER AND LAY FLAT ON PCB
PRODUCTION NOTES:
1. DO NOT CUT THE LEADS FOR D1,D2,D3 AND D4
SEE LAYOUT DIAGRAM
4
2
-V
A
5
7
3
1
B
+V
6
8
4
2
-V
A
5
7
3
1
B
+V
6
8
6
4
2
+V
1
-V
4
9
11
13
7
5
3
1
2 3
8
10
12
14
6
4
2
3
9
7
5
3
1
4
8
2
11
VCC VEE
13
1
10
12
14
"STYLE_P27" "STYLE_P28"
NC
V_IN+
V_IN-
MUTE
GND
NC
NC(+)
V-
OUTPUT
NC
V+
11 10
9 8 7 6 5 4 3 2 1
LM3876T
ECB
TO-92
MPSA63
MPSA43
MPSA13
2N5551
MPSA56
MPSA06
2N5401
12
9
6
3
#
13
11
10
5
4
8
7
2
1
DATE
MODEL(S):-
VER# DESCRIPTION OF CHANGE
D
..
V
V
V
D
D
PC#7125 RCA JACKS #3914 TO #6541
PC#7094 SWITCH #3421 TO #3436
N
N
N
SEP/2005
JUL/05/05
MAR/31/05 6.00
7.00
8.00
AM50
3.00
4.00
.
.
5.00
JAN/18/00
JAN/15/02
.
.
AUG/26/02 MAKE ALL LED LEADS THE SAME LENGTH
AND MASK FOR RCA JACKS
LED. NEW SOLDERMASK FOR TABS. PC#6484 NEW DRILL
PC#6250 MOVE C2 AWAY FROM J2. PC#6177 MOVE RED
ADD POT CHART
PC#6867 REDO SOLDERMASK
MAKE CE COMPLIANT FOR AC CLEARANCES
CONVERT TO PCAD2002
M571 Database History
..
FUNCTION KNOBREF
MODEL(S):-
PART#
R
R
R
R
R
R
P4
P5
P6
P1
P2
P3
F
F
F
F
F
F
TREBLE
GAIN
NOTCH
VOLUME
BASS
REVERB
P
P
P
P
P
P
#4420
#4418
#4419
#4417
#4420
#4417
N
N
N
N
N
N
N
N
N
SEP/05
N
N
K
K
K
K
K
K
.
.
.
#8641
.
.
AS OF
M571 POT LIST
AM50
12
9
6
3
#
13
11
10
5
4
8
7
2
1
DATE
MODEL(S):-
VER# DESCRIPTION OF CHANGE
D
D
DV
V
V
V
V
D
D
N
N
N
N
N
D
D
DV
V
V
{MODEL}
V
V
V
V
V
D
D
D
D
DN
N
N
N
N
N
N
N
Mnnnn Drilling History

Block Diagram for AM50T
AMP
Input 1 Gain Pot
Reverb
Pot
EQ
In 1
BLOCK-DIAG-AM50T-1v1.eps
Channel Inputs
Low / High
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
Channel 1
Unbalanced
Stereo 1/4"
XLR
Balanced
Stereo 1/4"
Input 2 Gain Pot
In 2
Channel 2
Balanced
Reverb Gain Stage
Notch Filter
Notch
OUT
IN
Contour Filter
Channel 1
Clip LED
Channel 2
Clip LED
Buffer
RCA
Reverb
Send
RCA
Reverb
Return
Reverb Gain Stage
Tweeter
8 Ohms
8 Ohms
Speaker Outputs
+
+