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WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS CANADA Yorkville Sound
550 Granite Court Pickering, Ontario L1W-3Y8 CANADA Voice: (905) 837-8481 Fax: (905) 837-8746
U.S.A. Yorkville Sound Inc.
4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA Voice: (716) 297-2920 Fax: (716) 297-3689
SERVICE MANUAL
Quality and Innovation Since 1963
Printed in Canada
Manual-Service-sr300-1v2.pdf
IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE.
INSTRUCTIONS RELATIVES AU RISQUE DE FEU, CHOC ÉLECTRIQUE, OU BLESSURES AUX PERSONNES
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE, N'ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)
CAUTION:
AVIS:
NE CONTIENT AUCUNE PIECE REPARABLE PAR L'UTILISATEUR.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Read Instructions
The Owner's Manualshould be read and understood before operation of your unit. Please, save these instructions for future reference.
CONSULTEZ UN TECHNICIEN QUALIFIE POUR L'ENTRETIENT
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.
Packaging Warning
Keep the box and packaging materials, in case the unit needs to be returned for service. When using electric products, basic precautions should always be followed, including the following:
Emballage Attention:
Conservez la boite au cas ou l'appareil devait être retourner pour réparation. Lors de l'utilisation de produits électrique, assurezvous d'adhérer à des précautions de bases incluant celle qui suivent:
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.
Alimentation
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.
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.
Power Cord Service
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 OPERATE THE UNIT. The unit should be serviced only by qualified service personnel.
Cordon d'Alimentation Service
safety-4v3.eps · Oct. 26/05
Évitez d'endommager le cordon d'alimentation. N'UTILISEZ PAS L'APPAREIL si le cordon d'alimentation est endommagé. Consultez un technicien qualifié pour l'entretien de votre appareil.
SR-300
YS No. 3747 6405 6400 6401 6825 6438 6827 6434 6733 6461 6824 6463 5101 5102 5103 5104 6780 5119 6810 6811 6814 6815 6988 6991 6840 6882 6884 6745 6880 6467 5200 5406 5410 5416 5206 5422 5423 6451 5204 6435 5224 5227 5228 5314 5231 5255 5257 5281 5260 5961 5267 5630 5869 4390 4522 714 3819 3489 3491 3682 3452 3498 3528 3451 3412 3414 2427 2405 8434 3501 3745 3885 3795 3810 3827 8433 8661 3484 3834 3593 3654 3655 5989 8793 8800 8788 3830 Description CUSTOM .5 LED SPACER BLACK RED 3MM LED 1V7 5MA BRT YEL 3MM LED 1V9 6MA HIGHEFF GRN 3MM LED 1V9 6MA HIGHEFF 1N4148 75V 0A45 DIODE T&R 1N4004 400V 1A0 DIODE T&R 1N5402 200V 3A0 DIODE 6A2 200V 6A0 DIODE BAT85 30V 0A2 DIODE SCHTKYT&R 1N5240BRL 10V0 0W5 ZENER 5% T&R 1N5246B 16V0 0W5 ZENER 5% T&R 1N5251BRL 22V0 0W5 ZENER 5% T&R BC550C TO92 NPN TRAN T&R TB BC560C TO92 PNP TRAN T&R TB MPSA06 TO92 NPN TRAN T&R TA MPSA56 TO92 PNP TRAN T&R TA MPSA56 TO92 PNP TRAN TA 2N5638 TO92 NCH JFET T&R TC MJF15030 T221D NPN TRAN TJ MJF15031 T221D PNP TRAN TJ MJF6668 T221D PNP TRAN DARL TJ MJF6388 T221D NPN TRAN DARL TJ MJL21194 TO3P NPN TRAN TK MJL21193 TO3P PNP TRAN TK MC33078P IC DUAL OP AMP TL072CP IC FET DUAL OP AMP NE5532N IC DUAL OP AMP LM13600N IC XCONDUCTANCE AMP 4N35 OPTO-COUPLER 10K 10% THERMISTOR NTC TO-92 _10P 200V 5%CAP T&R RAD CER.2"NPO _33P 50V 10%CAP BLK BEAD NPO 100P 100V 10%CAP T&R BEAD NPO 470P 50V 10%CAP T&R BEAD NPO __1N 400V 5%CAP T&R RAD .2"FLM __1N 50V 10%CAP T&R BEAD NPO __1N2 50V 10%CAP T&R BEAD X7R __4N7 250V 20%CAP BLK 'Y' 10MM AC _10N 100V 10%CAP T&R RAD .2"FLM _22N 275V 20%CAP BLK 'X2' 15MM AC _47N 100V 10%CAP T&R RAD .2"FLM _82N 100V 5%CAP T&R RAD .2"FLM 100N 100V 5%CAP T&R RAD .2"FLM 100N 50V 10%CAP T&R BEAD X7R 220N 63V 10%CAP T&R RAD .2"FLM __1U 63V 20%CAP T&R RAD .2"EL __2U2 63V 20%CAP T&R RAD .2"EL _10U 16V 20%CAP T&R RAD .2"NP _22U 50V 20%CAP T&R RAD .2"EL _33U 16V 20%CAP T&R RAD .2"NP 100U 25V 20%CAP T&R RAD .2"EL 330U 25V 20%CAP BLK 10X13MM EL 4700U 63V 20%CAP BLK 25X40MM ELS _10K AUD 16MM DETENT P22 __4K7 TRIM POT 1.5 MIL X 36" CLEAR POLY SHEETING ___5UH COIL 18AWG R000 AIR CORE CLIP 250X032 18-22AWG DISCO/INSL CLIP 205/187X020 18-22AWG DISCO/INS 250 MALE PCB TAB BULK CARTRIGE BND POST PCB MT HORZ QUAD ASSEMBLY 1/4" JCK PCB MT HORZ 1/4" JCK PCB MT HORZ GOLD TR_ EYELET SMALL 0.089 OD PLATED LOWPROFILE FUSEHOLDER 1/4" LITTLEFS INTERNATIONAL PC MOUNT FUSEHOLDER 5.0 AMP SLO-BLO .25X1.25 FUSE 10.0 AMP SLO-BLO .25X1.25 FUSE AP SERIES PLASTIC HANDLE PAIR B52200F006 COMP WASH #4 SMALL DUAL XSISTOR PBL SPRING PLATE ZN XSISTOR SPRING CLIP TO-220 #8 GROUND LUG ZIERICK 505-169 4" NYLON CABLE TIE SQUARE BUMPER BUTTON BLACK AP SERIES PLASTIC KNOB BUTTON KNOB FLAT GREY 8' 3/18 SJT AC LINE CORD 250WH187BL HEYCO #1214 STRAIN RELIEF PCB CONN 90 5 CIR .156 PCB CONN 4 CIR .100 LOCKING 13 CIR CABLE HOLDER .098 4 CIR CABLE HOLDER .098 4-40 HEX NUT ZINC 6-32 KEPS NUT ZINC 1/4-20 KEPS NUT ZINC TO218 PREGREASED MICA 56-78-2AP Qty. 7 2 2 3 41 2 4 4 4 2 6 1 8 11 2 2 2 2 2 2 1 1 2 2 2 5 1 1 2 2 2 2 2 2 4 2 2 1 4 1 2 2 16 2 6 1 3 4 1 6 4 4 2 2 2 4 2 3 1 7 1 2 2 5 1 4 1 2 2 2 2 4 1 4 5 2 2 1 1 2 2 2 2 2 2 1 4 YS No. 4597 5299 4749 4748 2008 4605 2014 4604 4811 4735 4852 4921 4897 2020 4986 2025 4950 4821 2030 4869 4758 4823 4981 4824 4988 4808 4705 4847 6124 4992 4756 4943 6121 4787 4762 4829 4940 4983 4856 4953 4830 4954 6123 4833 4956 6122 4794 4878 4834 4761 4898 4942 6120 4991 4796 4841 6135 4880 4845 4809 4751 3690 3574 3603 8870 8865 8861 8801 8829 8824 8869 8999 8765 8607 3744 8818 3511 8850 3436 3587 1248 Description 22AWG STRAN TC WIR 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 1/8W 10R 5% T&R RES 1/8W 33R 2%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 100R 5% .2"U T&R RES 1/4W 120R 5% T&R RES 1/8W 150R 2%FLAME PROOF T&R RES 1/4W 270R 5%MINI 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 1/8W 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 1K 5%MINI T&R RES 1/4W 1K5 5% T&R RES 1/4W 1K5 5%MINI 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 3K 5%MINI T&R RES 1/4W 3K16 1% T&R RES 1/4W 4K120 0.1% *** T&R RES 1/4W 4K7 5% .2"U T&R RES 1/4W 6K98 1%MINI MF T&R RES 1/4W 7K960 0.1% *** T&R RES 1/4W 9K760 0.1% *** T&R RES 1/4W 10K 5% T&R RES 1/4W 10K 5% .2"U T&R RES 1/4W 10K 5%MINI T&R RES 1/4W 12K 5% T&R RES 1/4W 12K 5% .2"U T&R RES 1/4W 15K 5% T&R RES 1/4W 18K 5% .2"U T&R RES 1/4W 20K0 1%MINI MF T&R RES 1/4W 27K 5% T&R RES 1/4W 27K 5% .2"U T&R RES 1/4W 33K 5%MINI T&R RES 1/4W 37K90 0.1% *** T&R RES 1/4W 43K 5% T&R RES 1/4W 47K 5% T&R RES 1/4W 60K4 1% T&R RES 1/4W 91K 5% T&R RES 1/4W 100K 5% .2"U T&R RES 1/4W 100K 5%MINI T&R RES 1/4W 133K 1%MINI T&R RES 1/4W 180K 5%MINI T&R RES 1/4W 220K 5% T&R RES 1/4W 270K 5%MINI T&R RES 1/4W 680K 5% T&R RES 1/4W 2M2 5% T&R RES 1/4W 10M 5% T&R RES 1/4W 22M 5% T&R RES _8" 4C-28AWG RIB 1 W/LCK HDR 098 _9" 5C-22AWG RIBBON CABLE 0.1" 16" 13C-24AWG RIBBON CABLE 0.1" #4 X 1/4 PAN PH TYPE A ZINC 4-40 X 5/16 PAN PH MS JS500 4-40 X 3/8 PAN PH MS JS500 6-32 X 3/8 PAN PH TAPTITE JS500 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 8-32 X 5/16 PAN QUAD TAPTITE JS500 8-18 X 1/2 THRD CUTTING FOR PLASTIC 8-32 X 5/8 PAN PH TAPTITE JS500 1/4-20 X 2 1/2 HEX HD MS JS500 BLK 3/16 NYLON SPACER OD 1/8 X ID .063 SNAP IN .375 SPACER RICHCO 3/4 OD X 5/16 ID X .08 THICK WASHER #6 FLAT WASHER NYLON #10 INT TOOTH LOCKWASHER BO DPDT PUSH SW PCMT H BREAK B4 MAKE DPDT ROKR SW QUIK 250"AC/PWR ON-OFF SR-300 POWER TRANSFORMER T'RD Qty. 11 7 4 2 2 4 6 4 2 2 1 1 2 4 2 4 6 3 2 2 6 4 2 2 1 2 4 1 2 4 2 2 2 2 8 2 8 3 2 2 2 2 10 3 1 2 2 2 2 2 4 2 6 2 2 2 2 2 1 2 2 2 2 1 2 4 2 2 22 14 4 7 1 18 5 2 2 4 2 1 1
R2L
0.1% 7K96 R3L 33K R51L R8AL 56K HEATSINK D30L
Q15L BC550
D5L
5W
HEATSINK
ENCLOSE CIRCUITRY IS OFF-PCB. 13A/85C T10A 50Hz 370VA #1248E C3L 63V 2u2
D6L R26L 3K16 AGND R28L 150R-FP
1/8W
5W
RT1L 10K Q5L MPSA56 -0.58V C5L 100n D4L 33078 5 6 100K R6L D27L
1/2
D25L 10K R42L
2W
CW
T2.5A
CHASSIS
BROWN
GRN/YEL
BLUE
-0.85V
20K R12L
C12L 1n2 R23L 274R
Q7L BC550 R24L 33R2
Q10L MJ15031 Q11L MJL21194 68R R36L
ENCLOSE CIRCUITRY IS OFF-PCB. 13A/85C BR1 TB1 TB2 60Hz 370VA #1248 TB7 TB4 T1 TB5 TB6
GND 10A-SB F2 GND
D1 PX6A02 D2 PX6A02 PX6A02 D3 PX6A02 C3 4700u 63V
+55V -55V -16V_BAT 10R C10L -21V R2 10K R3 2M2 D7 GND 63V 2u2 C6 GND B CE 2N5638 -18V KIL 10N R46L 33R R44L MJL21194 MJL21193 MJE15031 MJE15030 MJF6668 MJF6388 NOTES: 1. ADJUST R9 ACCROSS TP1&TP2 FOR 4.5 mV BIAS REMOVE R8AL AS REQUIRED TO ADJUST BIAS 2. Q3 IS THERMALLY COUPLED TO HEAT SINK 3.
4n7 CSA C1 CHASSIS GND
22n CSA C2 TB3
5A-SB
GND C4 4700u 63V -55V R1 2K2 5251B 22VZ ZD1 63V 1u C5
F1
S1
EY1 WHITE
F3 10A-SB N.A. VERSION
D4 IN4004 D5 IN4004 D6
BLACK
GREEN 120V A.C 60HZ LINE
2W
U:\M1085V18.PRN
1 2 3 4 5 6 7 8 9 10
+16V_BAT 10R C13L R47L 10N 4N35
B
6 5
33R R45L PIN 8 U1 +16V_BAT
A
1
+55V CIRCUIT WITHIN BOX IS NOT ON POWER AMP BOARD
D16L D17L D15L D14L D13L D2L C2L 33pF 0.1% 681R R4L C9L 100p
2 3
C C E NC
100K R5L R19L 120R C11L 1n
D26L
R20L 274R
R21L 33R2 Q6L BC560 HEATSINK +0.60V
33R R29L HEATSINK D7L 1N5402
INPUT 4V RMS CONNECT TO M1085 PREAMP PCB MX1L 1 CLP1 2 CLP2 AMP-REF. 3 4 AMP-IN
4
+55V D11L AGND MX2L 1 2 3 4 5 -55V AGND +55V O/P O/P GOLD
T R S
U2L
R43L 390R
Q9L
2W
USE
MJL21193
R30L 2K2
D1L +.67V
750R R15L Q2L BC550 270R R14L MPSA06 Q4L
D3L BAT85 100n C4L
Q8L MJE15030
1
R27L 150R-FP
1/8W
16V
0.1% C1L 4K12 33u R1L 0.1% 37K9
2 3 U1L
8 33078
1/2
1
3
BC560 Q1L
25.4VRMS 150 WATTS @ 4R GAIN = 6
270K R50L
R25L 3K16
0R15 R31L
16V 1N5246A D8L
C6L 25V 330u
L1L
5uH
AGND
R37L
1W
0R15 R33L
10K R8L
16V 1N5246A D9L
C7L 25V 100u
C23L 25V 330u
C8L 220n R38L 3R9 AGND
10R
4n7 CSA
22n CSA
R9L 4K7
A
T10A 230V A.C 50HZ LINE EXPORT VERSION
12K R11L 390R R10L
Q3L MPSA56
U1L 4
390R 7 R13L
BAT85
R18L 6K98 -0.58V
2
HEATSINK HEATSINK 1N5402 D12L R35L 2K2
D10L
BCE BC550C BC560C
BCE MPSA06 MPSA56
MODEL(S):# DATE
JUL/12/95 . NOV/24/95 DEC/08/95 MAR/30/99 APR/27/99 . OCT/08/99 SEP/30/02 APR/30/03
M1085PA.SCH_DATABASE_HISTORY
SR-300 VER# DESCRIPTION OF CHANGE
1.10 . 1.20 1.30 1.40 1.50 . 1.60 1.70 1.80 PC#4850/4851 REMOVE R7L, C13L ADD D26L D27L, R43L. R19L FROM 510R TO 120R . ADDED O/P JACKS CORRECTED I/P WIRES PC#4971 ADDED BATTERY BYPASS CIRCUIT R11L_15K->12K PC#5890_RT1L_100K->10K_ADD_R50L, R51L,Q15L,D30L HEATSINK_SYMBOL_ADDED CORRECTION_R27L/R28L->1/8W-FLM-PRF ADD_R8AL_FOR_BIAS_ADJUSTMENT
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
TP
TEST POINT
DSG
CBE
EBC
4. Reference with a "L" suffix will have a "R" suffix for the right channel amplifier. 5. ALL UNMARKED DIODES IN4148
V
N
DATE: APR/30/2003 YORKVILLE NAME: M1085AMP.SCH
MODELS: PCB#&VER:
SR-300 M1085
SCH ISSUE:
1.80
TITLE: AMPLIFIER_150W
O/P #3574
JB1B
#3574
JB1A
#3593
J4 J5 J6
RIBBON CABLE TO MXRA
R9
1
RIBBON CABLE TO MX3B
O/P"B" MX3B
GND
R17B
#3436 R8 GND VU2R
R1A R1B
#3436 J8
R4 J7
J1 J2 J3
#3593
V+ 11
#3528
V+
#3528
SW1
953R 953R JB2A
1 1
SR-300 M1085 VER:9.00
C1L
470R 15K R6 100n C7
470R R7 15K 100n C8
J13
D16L
4148
4148
4148
C9A
16V
16V
R1R R2R
D17R
D14R
4N35
R4A
33u 16V
R5 C5 C6
D16R 4148 4148 4148
4N35
953R 1n C1A 1n C2A 10M
J12 C1R
U2LA 1W 100R 37K90
R3R R4R C9R
U2L U2AR
C1B
D17L 33u 16V I/P"R" SGND CLP1R R15R CLP2R
R45R
R2B
JB2B
953R
1W 100R TLP62_
+45V GND -45V
#3574
SEE NOTE
R2A
#3574 MX3A O/P"A"
V-
1
9K760 9K760
100n
SW2
R18A R20A
220n
R18B
9K760 9K760 9K760
TLP62_ I/P"L" SGND CLP1L CLP2L
ZD2 C9 C10
U1
R4B R3B
D14L 4K12/0.1% R1L
TLO72
91K 91K
R3A R6A
D13L
R22A
C7A 220n
#5869
R5B
D15L 4148 4148
100n
R24A C10A
1
750R
9K760
J1L J2L
R5A
R1
100K R5L R15L
TP3L
TLO72
R10L
U6 Q2A
2K2
R45L 33R
J7R R8R
R11A
133K1%
MX1
C6A 47n C8A 82n HIGH-PASS-FILTER 16V 33u C6B 47n 82n C8B 10M R15A R17A C7B 220n 220n C9B 22M J11 91K 91K LIMITER
XFMR
R47R
10R
C11R
C11L
C3L
J18 J17
4148
R47L 10R
YEL._C-TAP
63V R11L 2u2
D2A
1n 120R 10K R8L C2L 56K R8AL 33p Q3L
D4A
180K
120R 1n
R21A
100n
D5A
390R 4148
U5
BC550
BC560
12K BC560
J19
Q1L
12K
J34
BIAS 100n 100n U4 TLO72
BAR DOWN
CTRL-PCB. C17
D7L
Q4L
U7
R29L
J26
#3603
D4B
100n C4L 1N2
33R
33R
1N2 100n C4R MPSA06
330u 25V
4148 4148
MPSA06
#6896
C13L 10R R46L 10n R44L 33R C6L Q2L BC550
#3655
R13L 390R
R23A 953R R23B 953R R28B J25 180K C11B 100n C19
XFMR
C12L
1K5
R35A
B Q8L EMJE15030
T10A #3414 SEC2._FUSE 10ASB
20K0 20K0
10K R33B R29B
MX2A
R38A
R38B
TP1L
4148
3K
J27
XFMR
1K
T10A #3414 SEC1._FUSE 10ASB
Q2B
#3683
Q4B
#3683 R39B
R24B R25B D3B R26B R27B J28
C10L 10n
BC560
Q9R
Q9L
3K
4K7 R36B
BC560
RED_SEC1
#6991
D5L
1
TB5
#5989
R39A
R30R
R37A 10K R36A 4K7
TB2
XFMR
WIRE
TB3
BLK_PRI
BLK_PRI TB1
WHT_PRI
XFMR
LINE-CORD
R20L R21L
RIBBON MARK R31B
#3655
WHT_PRI TB4
16V
I/P"A"
MJL21193
274R 33R2
2W 2K2 R30L J5L BC560
Q5A R35B
F2
MJL21193
2N5638
RIBBON MARK
#5989
R31L D8L 1K5
1
100u 25V
Q3A
#6991
0R15 5W
CLP2"A" CLP1"B" CLP2"B"
F3
CLP1"A" GND
Q5B
GND
Q3B
5W 0R15
D8R
4148
R15B R37B 10K BC560 C13B
D5R
10n
680N 250VAC
C10R
100u 25V
Q4A
R32B
TB7
TP1R
3K16 R25L BC560 1K 1K
150R R27L
4148 D5B
SEE NOTE 5
RT V RT V
SEE 5
RED_SEC2
C13A
22M
4148
20K0 10K
C12B
27K
J4L
12K R34B
4148 D7R D27R 4148 R13R 390R
C12R
J3L C10B C5B
#6434
D27L
16V 33u 10p
D2B 4148 D4
20K0 PX6A02 C2
R16B
33u 16V
16V 10u
J6R
Q8R
B
MJE15030 4148 E R43R 390R R29R
220K 100R C1 CSA 4N7
R11B R14B 4148 D6
BAR DOWN
R11R Q4R C6R
25V 330u
#6896
R13B 18K
150R
R27R
J24R J5R
3K16
R44R R25R
33R 10R
R46R
LED NEW #3747 SPACER
2K2 2W J20R 10K RT1R Q6R D30R
4148
100K
R10B J35
#6434
27K
IN4004
D1
20K0
D1B 4148
100n C20
D3L
BAT85
R12B U3 PX6A02
TLO72
IN4004
R19R
R14L R12L J20 J21 C18
R43L
270R
R19L
5532 LM13600
D5
R9R
4K7
BAT85
D3R
270R
R14R
20K0
R12R
10n
C13R
C11A
A56 D26R
#6434
#6434
Q1R
Q2R
C16
R28A
27K
J24
C5A R12A
16V 33u PX6A02
D2
4148 D1A
R13A D3A
R8AR Q3R
100n C21 60K4_1%
R34A 4148 D3
BAR DOWN BAR DOWN
10K
56K
100K PX6A02
R9L 4K7
4148 4148
R6L
TB6
100K
390R
220K 18K 10p
R33A 27K 12K
C4
C3
2u2 63V
20K0 20K0 20K0 10K 20K0
J23
R25A R27A
390R
16V 10u
10K R29A
R10R
A56
R10A
BC560
R14A 100R
C3R TP3R
100K R5R
33R
R16A
D13R D15R
R21B C12A
U1R
MC33078 MC33078
J2R J1R 750R
U1L
C13
R26A
33p
D1L D2L R20B R22B 4148
4148 4148
J15 J16
133K1% 60K4_1%
R19B ZD1 R19A R2 R3 D7
GREEN
RTV RT V
4148 4148
10K 2M2 C2R
4148 D1R D2R 4148
RT1L 10K
BC550
R30B R40B
16V 10u
#6988
2K 47K
MJL21194
4148
C22B
R33R
10V
680K
TP2L
R30A 2K
C5L
R23L
R31A 100K
R42L D25LR24L
C3A
R42R
E
C7L
B
D25R R24R 33R2
25V 100u
D6B
274R
33R2
TLO72
J33
100n
BAT85 D4L Q10L
#6897
10K
#6897
4148
10K
10V
MJE15031
E
680K 470p
R40A 47K
R36L
BC550
R11 470R
50V 22u
25A C11
B
MJE15031
25V 330u
330u 25V
A56 Q1A
1K5
Q5L
R10
C23L
J32
C14 100n J31
25A 1K
R9A D6A R8A C22A
Q5R
A56
4148
D9L
16V
LD2A
16V 10u
D4R BAT85
U2
Q10R
100n
274R
LD1
100u 25V
LD2B
16V
C23R
C7R
D9R
2-OZ COPPER
CLIP(RED) Q3 BC560 LD4A SIG.(GRN) CHANNEL"A" 10K #4390
100n C15 LD4B CLIP(RED) SIG.(GRN)
CHANNEL"B" 10K #4390
TP2R
R23R
R33L
Q11L
68R
68R
R36R
R38L
2W 3R9
C8L
00.9-5801M
00.9-5801M
220n L1L
10R 1W
MODEL(S):- SR-300 # DATE VER# DESCRIPTION OF CHANGE
1W 10R
R37R
C8R
R38R
2W 3R9
IN5402
D12L D11L
M1085.PCB_DATABASE_HISTORY
D11R
R26R
#3819
PWR._SUP.&O/P(#3538)
PWR._SUP.&O/P(#3538) MX1R
RIGHT CHANNEL M1085-9.00
RTV
#3819
VAGND V+ O/PL O/PL
REPPOC .zo 2 ESU
O/P_R O/P_R V+ AGND V-
2-OZ COPPER
470P
5W 0R15
PWR_ON(GRN)
10K R7B
R9B R7A
10K
MJL21194
4148
2K2 2W R35L
J29
D10L
P1A 1K
R8B
#6988
270K R51L 33K BC550 Q15L BC550 Q7L 100K
1.
LD3A LIM.(YEL)
J30
#3603
CTRL-PCB.
D10R
2-OZ COPPER
63V 4700u
#5869 63V 4700u
37K90 R3L 7K96 R4L 681R C9L 100p 9K760
J14 R32A
1K
ZD3
2u2 63V
43K 43K
RT V
RT RTV V
4K12/0.1%
22V
1u 63V
1n C2B 1n 9K760 R6B C12 100n 100n
P:\1085V81.PRN
ASSEMBLY PCB MECH
M1085-9.00 M1085-9.00
01.8-5801M
HCEM BCP
RED
FUNCTION
BLK
TUBING TO R22L/R BEFORE WAVE SOLDERING
OUTPUT"B" O/P O/P
"006.01 X "570.31=EZIS KNALB BLANK SIZE=13.075" X 10.600"
ENGINEERING NOTES NOTE 1 ADD HEATSHRINK NOTE 2
LINE_IN Q1 Q2
LINE_IN
B
+15V
MJF6388
E B
-15V
MJF6668
E OUTPUT"A"
O/P
#3498
1+
#3498
1-
HEATSHRINK TUBING MUST NOT EXTEND ABOVE THE THERMISTOR R22L/R TRANSISTOR MOUNTING DETAIL Q3L/R
SEE NOTE NOTE 3
R2L
RT V
7K96 681R 100p
#8607 SPACER
BIAS
R6R 100K
NOTE 3A
EBC USE ONLY PART #6780 FOR Q3L/R NO SUBSTITUTION ALLOWED
NOTE 4
I/P"B" MX2B 2N5638
16VR31R
NOTE 5
33R2 274R BC560 6K98 R21R R20R
FOR C2 USE PART#5266 680N FOR EMC UNITS USE PART#6435 22N FOR N.A. UNITS
BC560
Q6L
R50L
Q1B
D30L MX1.
4148
00.9-5801M
6K98
R18L
Q15R BC550 33K R51R 270K R50R R18R
Q7R C3B
NOTE 6
P1B 2W 2K2
R35R
LIM.(YEL) LD3B
BC550
Q11L/R Q9L/R 0R15 5W
Q11R C5R
Q10L/R Q8L/R
D6L
4148 R26L
R28L 150R 3K16
R28R 150R 3K16
IN5402 IN5402
4148 D12R
D6R
#8607 SPACER
#8607 SPACER B C E B C E
IN5402
R37L
220n L1R 5uH RT
P22 POT 3511 WASHER
RTV
LEFT CHANNEL M1085-9.00
RT 5uH V
V
PCB
MX1L
STYLE STUFF "P22" 4N35 U2R, U2L OR U2RA, U2LA (TLP621) NOT BOTH
NOTE 7 BOARD TEST
00.9-5801M EDISREDLOS
8870 SCREW
VCD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2.00 . 2.10 2.20 . 3.00 . 3.00 4.00 . 5.00 6.00 . . . 7.00 8.00 8.10 9.00 V
JUL/07/95 . OCT/23/95 NOV/20/95 . APR/22/96 . AUG/22/96 MAR/19/97 . AUG/14/97 JAN/26/99 FEB/24/99 . MAR/30/99 MAR/02/00 JUL/03/02 APR/30/03 JUN/17/05 D
PC#4850/4851 DELETE R7L/R,C13L/R. ADD D26L/R, D27L/R, R43L/R. R19L/R 510R-->120R PC#4919 RETAPE TO ACCEPT 470N AC CAP PT#5243 FOR EMC UNITS PC#4951 D14L, D16L D17L Q1L AND Q2L MOVED FOR RADIAL INSERTION PC#4952 PC#4971 ADD BATTERY BYPASS CIRCUIT PC#5103 MOVE THERMISTOR MACPIN_UPDATED OUTPUT_TERMINALS_REPLACED_ C15_RADIAL->AXIAL SPACE_ADDED_FOR_680N_CAP_C15->RADIA PC#5908_ADD_TLP621_(U2RA_U2LA) PC#5890_100K_THERMISTOR->10K_ADDED_ Q15L/R,R50L/R,R51,R/L_D30L/R R11R/L_15K->12K_PC#5982 SHEAR HERE AFTER PC#6211_FIX_ERROR_Q6R->Q15R PC#6227_MOVE_D16L,D17L,D14L ADD_R8AL/R_FOR_BIAS_ADJUSTMENT REDO SOLDERMASK N
REMOVE R8AL/R AS REQUIRED TO ADJUST BI
NOTE 8
1.4VRMS FOR FULL OUTPUT POWER 15K R7 -55V R5
1W
16V 500mW ZD2 16V 500mW ZD3 C8 100n
C9 100n C10 100n R9 470R HEATSINK MJF6668 Q2 10u C3B GND
D6B 1N5240BRL 10V C22B 470p R8B 680K 16V P1B 10K 25A
CW
U3 -13V
1 D2A
R16A 20K0 R18B 91K 82n
R15A 22M
IN
GREEN
PIN 11
OUT
1K5
LM13600 1/2
SW2
1
2
IABC
4
3
SW2
4
5
GND GND
PIN 11
13 R16B D2B 20K0
IN
IABC
OUT
LIMITER
LM13600 1/2 -13V U3 KIL
R15B 22M
6
U:\SR300IP2.PRN
1 2 3 4 5 6 7 8 9 10
NOTE: IF EITHER INPUT JACK IS CONNECTED UNIT WILL WORK IN MONO
R18A
COMPONENTS INSIDE THE DOTTED LINE ARE LOCATED ON THE FRONT PCB WHICH IS CONNECTED TO THE REAR PCB WITH A RIBBON CABLE
R5A 9K760 D6A 2 1 3 U1
1/2
91K 82n 47n C6A H.P.F C8A 10M R17A 220n C7A D1A 2 1 R10A SIGNAL LD2A
GRN
TLO72
1/2
1 R23A 1 953R Q3A 2N5638 R39 KIL (TO AMP "A") +15V GND Q4A BC560 R35A 1K5 +15V D5A 27K R33A Q2A BC560 R32A 1K 4.5V 12K R34A GND BC560 LIMITER -15V R38A 1K 1 2 GND C13A 100u 25V 3K GND 2 3 4
CLP1"A" CLP2"A" GND I/P"A" TO INPUT OF AMPLIFIER
3 R19A 43K GND GND 2
U6 R22A 133K1%
3 IN 2 OUT 1
GOLD TIP&RING JACK GND
R1A 953R
R3A 9K760 C1A 1n C2A 1n 9K760 R4A
220n C9A
SW1 R20A 91K
R21A 60K4_1%
JB1A 1 BAL.
S
3
R
5
T
GND 953R R2A
CLP LD4A
RED
TLO72 R6A 9K760 GND HEATSINK +15V
INPUT 2 CHANNEL "A"
4
6
R7A GND 10u C3A 16V 25A
CW
1N5240BRL 10V C22A 470p R8A 680K 2 1 3 U2
1/2
R26A R25A 20K0 R27A 10K D3A 1 U5
1/2
16V
C11A 33u R28A 180K
C12A 16V 10u R29A 10K 1
3
R24A 20K0 R12A 27K
2 3
20KO
10K
U4
1/2
2 3 U7
1/2
100K R11A 220K
5532
TLO72 GND
D4A GND
R4
1W
R9A 1K
TLO72
MJF6388
PIN 1
PIN 1
100R +55V 15K R6 GND C7 100n Q1 R8 470R
P1A 10K GND
TLO72
R13A 18K 8 7 5
C5A 10p GND 3
D
R37A 10K R36A 4K7 Q5A
STEREO/ MONO
-15V GND +15V
POWER ON LD1 R10 +15V GND
GND
R14A 100R 33U C10A 16V GND
2
10K R7B
CLP1"B" CLP2"B" GND I/P"B" TO INPUT OF AMPLIFIER
R9B 1K 7
SIGNAL LD2B
GRN
TLO72
1/2
GND R23B 7 953R Q3B 2N5638 KIL (TO AMP "B") GND +15V Q4B BC560 R39B 3K
3 4
6 5 U2
1/2
47n C6B Q3 BC560 220n C7B
H.P.F C8B 10M R17B 220n C9B
6 IN 5 OUT 4
5 R19B 43K GND GND 6
U6 R22B 133K1%
GND +15V C11 22u 50V R11 470R
100R R1B GND JB1B 1 BAL.
S
TLO72 GND
SW1 R20B 91K
R21B 60K4_1%
R3B 9K760 C1B 1n C2B 1n 9K760 R4B 6
R5B 9K760 7 5 U1
1/2
-15V
D1B
953R 3
R
R26B R25B 20K0 R27B D3B 10K 7 5 U5
1/2
5
T
-15V
-15V 6 7 R10B R40B 47K R40A 47K BC550 Q1B R30B 2K
YEL YEL
16V 6 GND 5
C11B 33u R28B 180K 7 U7
1/2
C12B 16V 10u R29B 10K +15V
R35B 1K5
GND 953R R2B
INPUT 2 CHANNEL "B"
4
6
TLO72 R6B 9K760 R31B GND +15V C21 100n -15V 100K CLP LD4B
RED
5
R24B 20K0 R12B 27K
6
20K0
U4
1/2
-15V BC550 Q1A R30A 2K 9
100K R11B 220K 10 12
5532
TLO72 GND
GOLD TIP&RING JACK ALL UNMARKED DIODES ARE IN4148 C12 100n C13 100n C14 100n C15 100n C16 100n C17 100n C18 100n C19 100n C20 100n
R31A 100K
D4B
TLO72 Q2B BC560
27K D5BR33B 4.5V 12K R34B GND LIMITER -15V R38B 1K GND BC560 C13B 100u 25V R37B 10K R36B 4K7 Q5B
R13B 18K
C5B 10p GND 14
D
GND
LD3B
LD3A LIMITER GND
15
R14B 100R 33U C10B 16V GND
R32B 1K
16
(TO AMP "A"&"B")
M1085.SCH_DATABASE_HISTORY
MODEL(S):# DATE
NOV/24/95 MAR/31/99 OCT/08/99 D D D D D D D
SR-300 VER# DESCRIPTION OF CHANGEPWR REDREW OUTPUTS TO MATCH
1.20 1.30 1.40 V V V V V V V . UPDATE_POTS HEATSINK_SYMBOL_ADDED N N N N N N N
AMP SCHEM.
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
DATE: OCT/08/99 YORKVILLE NAME: M1085.SCH
MODELS: PCB#&VER:
SR-300 M1085
DWG_1_OF_2
SCH ISSUE: TITLE: INPUT/PREAMP
1.40
V
N
MJF6388 MJF6668 BC550C BC560C 2N5638
STYLE "P22"
BCE
CBE
DGS
L
N
G R N /Y E L L
19 1/2" WHITE
W H I T E D B L /I N S 1 4 " B L A C K D B L /I N S
1248E
T
T
W H I T E D B L /I N S B L A C K D B L /I N S
R E D DBL/INS
1 7 " W H I T E D B L /I N S
4 1/2" B LAC K
S R -30 0E A C W IR I NG V E R S IO N 1. 30 F E B 02, 99