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150W into 4 ohms per channel
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
Manual-Service-sr300-1v1.pdf
Quality and Innovation Since 1963
Printed in Canada
SR-300
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). NE CONTIENT AUCUNE PIECE REPARABLE PAR L'UTILISATEUR.
CAUTION:
AVIS:
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CONSULTEZ UN TECHNICIEN QUALIFIE POUR L'ENTRETIENT.
Read Instructions: Packaging: Warning:
The Owner's Manual should be read and understood before operation of your unit. Please, save these instructions for future reference. 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:
Veuillez lire le manuel: Emballage: Warning:
Il contient des informations qui devraient êtres comprises avant l'opération de votre appareil. Conservez S.V.P. ces instructions pour consultations ultérieures 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:
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. 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.
Hazard:
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 OPERATE THE UNIT.
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. 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.
Service:
Cordon d'alimentation: Service:
The unit should be serviced only by qualified service personnel.
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.
SAFE_V4.doc Version 4.0 02/11/99 11:54 AM
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
+16V_BAT 33R R45L PIN 8 U1 +16V_BAT CIRCUIT WITHIN BOX IS NOT ON POWER AMP BOARD 33R R29L HEATSINK D7L 1N5402 D11L HEATSINK Q9L
2W
10R
C13L R47L +55V
10N
4N35
D16L D17L D26L R19L D2L R43L 390R AGND R30L 2K2 +0.60V MJL21193 Q6L BC560 -55V AGND +55V O/P O/P
T
B
A
6
1
C
D15L 100K R5L +55V R20L 274R R21L 33R2
5
C
2
INPUT
4
E
NC
D14L
3
U2L 120R C11L 1n MX2L 1 2 3 4 5
D13L
4V RMS
GOLD
R S
USE
C2L 33pF 0.1% 681R D1L D3L BAT85 Q2L BC550 R27L
1/8W
CONNECT TO M1085 PREAMP PCB MX1L 1 CLP1 2 CLP2 AMP-REF. 3 4 AMP-IN 750R R15L 100n C4L 150R-FP 270K R50L
5W
+.67V
R4L C9L 100p
Q8L MJE15030
1
25.4VRMS 150 WATTS @ 4R GAIN = 6
2 1 MPSA06 Q4L R25L 3K16 Q15L BC550 D5L 33K R51L
5W
8 270R R14L 0R15 R31L 16V 1N5246A D8L C6L 25V 330u L1L 5uH
3
BC560 Q1L
HEATSINK
13A/85C RT1L 10K R26L 3K16 AGND R28L
1/8W
10K R8L D30L D25L
2W
4n7 CSA A
CW
22n CSA 150R-FP C5L 100n -0.58V
HEATSINK
T2.5A
CHASSIS
BROWN 100K R6L C12L 1n2 D27L R23L 274R R24L 33R2 Q7L BC550
GRN/YEL
BLUE
390R R10L 7 4 Q10L MJ15031 R13L 6
2W
S1
TB3
TB4
GND -55V R1 -18V 63V 1u C5 R2 10K GND 2M2 D7 63V 2u2 C6 GND -21V R3 KIL 10N
TB7
5A-SB
F1
CHASSIS
U:\M1085V17.PRN
AGND R37L
1W
16V
0.1% C1L 4K12 33u R1L
3
U1L
1/2
0.1% 37K9
33078
R2L
0.1% 7K96
R3L D6L 0R15 R33L 16V 1N5246A D9L C7L 25V 100u
C8L 220n R38L 3R9 AGND 10K R42L C23L 25V 330u
10R
ENCLOSE CIRCUITRY IS OFF-PCB.
T10A Q5L MPSA56
50Hz 370VA #1248E
C3L 63V 2u2
R9L 4K7
2
R18L 6K98 HEATSINK -0.58V HEATSINK R35L 2K2 1N5402 D12L
T10A 33078
1/2
12K R11L BAT85 390R 5 U1L
Q3L MPSA56
D4L
230V A.C 50HZ LINE
EXPORT VERSION
-0.85V 20K R12L
Q11L MJL21194 68R R36L
D10L
ENCLOSE CIRCUITRY IS OFF-PCB. +55V
GND
D1
13A/85C BR1 C3 4700u 63V 10R C10L R46L 33R R44L
TB1
TB2
TB5
T1
10A-SB
PX6A02 D2
-55V -16V_BAT
TB6
F2
60Hz 370VA GND C4 4700u 63V
GND
PX6A02 PX6A02
4n7 CSA C1
22n CSA C2
#1248
D3 PX6A02
MJL21194 MJL21193
MJE15031 MJE15030
MJF6668 MJF6388
NOTES: 1. ADJUST R9 ACCROSS TP1&TP2 FOR 4.5 mV BIAS 2. Q3 IS THERMALLY COUPLED TO HEAT SINK BCE BCE B CE 2N5638 BC550C BC560C MPSA06 MPSA56 3.
EY1
F3 10A-SB
D4 IN4004
N.A. VERSION
D5 IN4004
BLACK
WHITE
GREEN 120V A.C 60HZ LINE
D6
2K2 5251B 22VZ ZD1
TP
TEST POINT
M1085PA.SCH_DATABASE_HISTORY
V N
4. Reference with a "L" suffix will have a "R" suffix for the right channel amplifier. DSG CBE EBC 5. ALL UNMARKED DIODES IN4148
MODEL(S):# DATE
SR-300 VER# DESCRIPTION OF CHANGE
DATE: SEP/30/2002 YORKVILLE NAME: M1085AMP.SCH
MODELS: PCB#&VER:
SR-300 M1085
SCH ISSUE:
1.70 TITLE: AMPLIFIER_150W
1 2 3 4 5 6 7 8 9 10
JUL/12/95 . NOV/24/95 DEC/08/95 MAR/30/99 APR/27/99 . OCT/08/99 SEP/30/02 D
1.10 . 1.20 1.30 1.40 1.50 . 1.60 1.70 V
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 N
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
R18A 91K 82n H.P.F U6 1 R22A 4 I/P"A" TO INPUT OF AMPLIFIER Q3A 2N5638 R39 KIL (TO AMP "A") GND Q4A BC560 R35A 1K5 +15V D5A 27K R33A Q2A BC560 R32A 1K 4.5V 12K R34A GND BC560
1 2 3
1/2
TLO72 CLP1"A" CLP2"A" GND 3 953R 3 R19A 43K 2 133K1% R21A 60K4_1% +15V 3K GND R26A 16V 180K 2 1 3 U7
1/2
1 R23A GND 2
NOTE: IF EITHER INPUT JACK IS CONNECTED UNIT WILL WORK IN MONO
47n C6A C8A
3 IN 2 OUT 1
COMPONENTS INSIDE THE DOTTED LINE ARE LOCATED ON THE FRONT PCB WHICH IS CONNECTED TO THE REAR PCB WITH A RIBBON CABLE
10M R17A SW1 R20A 91K R25A 2 1 R10A
1/2
GOLD TIP&RING JACK GND D6A D1A 20K0 R27A 10K D3A 1 3 U5
1/2
R1A 220n C7A 220n C9A
R3A
R5A
GND
953R
9K760 C1A
9K760
1n
2 C11A 33u R28A 10K C12A 16V 10u R29A
1
JB1A 1 2 20KO
3
5
GND R7A GND 10K 16V 2 1 25A
CW 1/2
C2A
3
U1
1/2
CLP LD4A R24A 20K0 R12A 27K TLO72 GND GND R13A 18K GND GND 3 GND GND R16A D2A R18B 91K 82n
GRN D
BAL. 3 U4 5532 D4A TLO72 680K 100K R11A 220K
GRN
S
R
T
INPUT 2
4
6
953R
1n 9K760
TLO72 R6A
RED
1N5240BRL 10V C22A 470p R8A
R2A 10u C3A 3 U2 1K C5A 10p TLO72 8 POWER ON LD1 R10 +15V 1K5
GREEN PIN 11
R4A SIGNAL LD2A
9K760
CHANNEL "A" R9A
GND
HEATSINK
+15V
R4 P1A 10K 7 5
1W
PIN 1
C9 D6B U3 -13V 20K0 1
-15V GND +15V GND
IABC
LM13600 1/2 4 R15A 22M
SW2
OUT
IN
R5 25A
CW 1/2
MJF6668
4
5
6
GND
LD3A LIMITER GND
PIN 11
13 16 D2B KIL (TO AMP "A"&"B") R16B 20K0
OUT
IN
LIMITER
IABC
SW2
U:\SR300IP2.PRN
R37A C13A 100u 25V 10K R36A 4K7 Q5A LIMITER -15V R38A 1K 1 2 TLO72
1/2
STEREO/ MONO 2
15K R6
C7
Q1
100n
MJF6388
PIN 1
100R +55V R14A 100R 33U C10A 16V
GND
R8 470R
GND
16V 500mW ZD2 16V 500mW ZD3 10K R7B R9B 1K H.P.F C8B
6 IN 5 OUT 4
100n C10
100n SIGNAL LD2B 5 R19B 43K GND GND R20B 91K R25B 7 R10B -15V 100K 5532 R11B 220K R13B 10 12 18K 9 C5B 10p GND 14
D 1/2
GND
CLP1"B" GND R23B U6 7 953R CLP2"B" 3 4 GND I/P"B"
1.4VRMS FOR FULL OUTPUT POWER 680K 16V 7 5 U2 GND SW1 TLO72 GND D1B 220n C7B 220n C9B Q3 BC560 10M R17B P1B 10K 6 47n C6B 10u C3B
C8
15K R7
100n
R9 470R HEATSINK
1N5240BRL 10V C22B 470p R8B
Q2
-55V
6 R21B 60K4_1%
R22B 133K1%
Q3B 2N5638 GND KIL (TO AMP "B") +15V Q4B BC560 R26B 16V 20K0 R27B
R39B 3K
TO INPUT OF AMPLIFIER
1W
100R
R1B -15V R11 470R 6 5 U4 R12B 27K R24B 20K0
R3B
R5B
-15V
GND -15V
953R
JB1B 1
3
5
9K760 C1B
9K760
+15V C11 22u 50V
6
7
BAL.
S
R
T
GND
1n C2B
5
C11B 33u R28B 6 5 20K0 7 U5
1/2
C12B 16V 10u R29B D3B 10K GND TLO72 GND Q2B BC560 R32B 1K GND 12K R34B GND D4B 6 5 180K 7 U7
1/2
R35B 1K5 10K +15V
U1
INPUT 2 R40B 47K R31B 100K R30B 2K
YEL YEL
4 R40A 47K R31A 100K R30A 2K BC550 Q1A BC550 Q1B
6
1/2
CHANNEL "B"
953R
1n 9K760
TLO72 R6B
R2B
R4B
9K760
TLO72
27K D5BR33B 4.5V R37B
GOLD TIP&RING JACK ALL UNMARKED DIODES ARE IN4148
GND
+15V
C12
C14
C16
C18
C20
C21
100n LD3B
100n
100n
100n
100n
100n
CLP LD4B
C13
C15
C17
C19
-15V
RED
C13B 100u 25V 15 R15B 22M R14B 100R 33U C10B 16V GND LIMITER -15V R38B 1K GND
10K R36B 4K7 Q5B BC560
100n
100n
100n
100n
GND
LM13600 1/2 -13V U3
M1085.SCH_DATABASE_HISTORY
V N
DATE: OCT/08/99 YORKVILLE NAME: M1085.SCH
MODELS: PCB#&VER:
SR-300 M1085
DWG_1_OF_2
SCH ISSUE: TITLE: INPUT/PREAMP
MODEL(S):# DATE
SR-300 VER# DESCRIPTION OF CHANGEPWR REDREW OUTPUTS TO MATCH
1.40
AMP SCHEM.
MJF6388 MJF6668
BC550C BC560C
2N5638
STYLE "P22"
BCE
1 2 3 4 5 6 7 8 9 10
NOV/24/95 MAR/31/99 OCT/08/99 D D D D D D D
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
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
CBE
DGS
RIBBON CABLE TO MXRA
JB1B
#3574
O/P #3593 V+
MX3A O/P"A"
O/P"B" MX3B #3574
#3593
JB1A
#3528
#3528
SW1
1+
#3498
R17A #3436 #3436 J11 R8
J1 J2 J3 J4 J5 J6 R9
1#3498
O/P
SR-300 M1085 VER:8.00
V+
#3574 11 RIBBON CABLE TO MX3B
1
R17B
C8A HIGH-PASS-FILTER
#3574
1
470R 15K R6 100n C7
10M
JB2A 1W 100R
C6 C5 J13
C1L
10M
4N35
D16L
4148
C1B C2B
4148
C9A
C8B
D14L 4K12/0.1% R1L
4K12/0.1%
9K760 9K760 9K760
9K760
TLO72
R4B R3B
U1
91K 91K C7A 220n
63V 4700u
D13L 100K R5L R15L 750R
C2R
#5869
R22A
D15L 4148 4148
C6A
16V 33u C6B
C7B
C2L 33p
9K760
R5B
33p
D1L D2L
4148 4148
R3A R6A
R22B
R20B
C10A
R15A
U1R
U6 Q2A
BC560
R45L 33R
R10L
R1
YEL._C-TAP
R11A
1
R16A
R25A R27A
2K2
33R
R5A
MC33078
C11L
133K1%
TLO72
TP3L
MC33078
XFMR
D13R D15R
U1L
C13
4148
R47L 10R
C3L
R11L 63V 2u2
J18 J17
CTRL-PCB. C17
Q3L
1n 120R
180K
100K
D2A
R28A
D2
C13L R46L 10n R44L C6L Q2L BC550 330u 25V BC560
R21A
Q1R
390R 4148
Q2R
D5A
J19
12K
100n C20
U5
Q1L
100n
J34
BIAS
R19L
J25 C11B 100n C19
C11A C18
#6434
#6434
T10A #3414 SEC2._FUSE 10ASB RED_SEC2
D7L
1N2 100n C4R MPSA06
100n C4L 1N2
953R 953R
Q4L
R29L B TP1L Q8L E MJE15030 #6896
U7
R13L 390R
MPSA06
10R 33R
R23A R23B R28B
18K C10B
XFMR
R35A
1K5
C12L
12K R34B
20K0 20K0
20K0 10K
4148
27K
RT V
MX2A
RT V
J4L
R38A
C10L 10n
#3683 R39B
4148
F3
XFMR
R24B R25B D3B R26B R27B J28 J27
BC560
MJL21193
BC560
Q4B
R37A 10K R36A 4K7
#6991
D5L
TB5
BLK_PRI
BLK_PRI TB1
WHT_PRI
WHT_PRI TB4
R39A
#5989
TB2
XFMR
WIRE
XFMR
I/P"A"
BC560
2N5638
TB3
16V
REPPOC .zo 2 ESU
R20L R21L BC560 R50L
274R 33R2 Q6L
2W 2K2 R30L J5L RT1L 10K
R35B
MX2B 2N5638
LINE-CORD
Q5A
RIBBON MARK
R30R
#5989
F2
1
R31L D8L
100u 25V
#6991
4K7 R36B
Q9L
Q5B
GND
1
Q3B
Q9R
CLP1"A" GND 3K
CLP1"B"
MJL21193
#3683
0R15 5W
3K
1K
Q2B
CLP2"A"
D8R
1K5
Q3A
I/P"B"
2K2 2W J20R 10K
16VR31R
D5R
CLP2"B"
5W 0R15
4148
10n
Q4A
RED_SEC1
C10R
100u 25V
680N 250VAC
TB7
BC560
R38B
R32B
TP1R
3K16 R25L
R15B R37B 10K BC560 C13B
1K 1K
150R R27L
C13A
22M
C12B
4148 D5B
SEE NOTE 5
SEE
5
R27R
150R
3K16
R44R R25R
LED NEW #3747 SPACER FOR C2 Q10L/R Q8L/R #8607 SPACER B C E P22 POT 3511 WASHER 8870 SCREW
D27L
C5B
D2B
4148
#6434
C2
C12R
J3L
16V 33u
10p
20K0
R16B
33u 16V
16V 10u
10K R33B R29B
#3655
R13B
T10A #3414 SEC1._FUSE 10ASB
180K
BAR DOWN
C1 CSA 4N7
220K 100R
R11B R14B
33R
D6
B
D4
PX6A02
J6R
Q8R
J24R J5R
33R 10R
4148
#6434
R46R
J35
#6896
4148 4148
D4B
100K
R10B
25V 330u
IN4004
PX6A02
MJE15030
27K
D1
E
D1B
4148
R12B U3
Q4R C6R
J26
20K0
#3603
BAT85
U4
100n
TLO72
TLO72
IN4004
R11R
R14L R12L
R43L
270R
D3L
J20 J21
5532
LM13600
D5
BAR DOWN
4K7
R9R
270R
R14R
BAT85
D3R
20K0
R12R
10n
C16
C13R
27K
12K BC560
BC550
D4A
A56 D26R
100n
4148 D1A
18K
R13A
4148
D3A
R34A 4148
R6L
R9L 4K7
4148
100K
220K 10p
C5A R12A
R33A 100n C21 27K 12K 60K4_1% J24
C4
D3
BAR DOWN
TB6
390R
10K R8L
C3
BAR DOWN
390R
2u2 63V
R10A
4148 Q3R J7R R8R R43R 390R 10K R29R 33R 120R R19R 4148 D7R 1n C11R D27R 4148 R13R 390R
R14A 100R
20K0 20K0 20K0 10K 20K0
J1L J2L
R26A R24A
60K4_1%
R21B C12A
C3R TP3R
J2R J1R 750R
100n
100K R5R
133K1%
4148
GREEN
RTV RT V
4148 4148
J15 J16
R45R
10K 2M2
#5869 63V 4700u
J14
R32A
47n
47n
43K 43K
R19B ZD1 R19A R2 R3 D7
22V
RT V
RT RTV V
RT V
R15R
TLP62_ I/P"L" SGND CLP1L CLP2L
220n 220n C9B 91K 91K
D14R
4N35 R2L
4148
33u 16V 9K760 9K760
R18A R20A
R18B
SW2
220n
82n
82n
ZD2
37K90 R3L 7K96 R4L 681R C9L 100p
1K
ZD3
2u2 63V
1u 63V
1n 1n 9K760 R6B C12 100n
33u 16V
R1R
U2AR
R2B
J12
U2LA
U2L
D17L
1
1
953R
953R 1n C1A 1n C2A
R4A
JB2B
R2A
R1B
LIMITER
953R 953R
470R R7 15K 100n C8
1W 100R
J7
R1A
+45V GND -45V
J8
16V
16V
100n
100n
C9 C10
MX1
J23
R10R
16V 33u
R6R 100K
R47R
10R
16V 10u
10K R29A
22M
D10L
2K 47K
4148
4148
2K2 2W R35L
MJL21194
MJL21194
#6988
#6988
16V 10u
LD3A LIM.(YEL) P1A
#3603
R8B
CTRL-PCB.
J29 J30
D10R
6K98
R18L
MX1.
BC550
4148
#3655
R30B R40B
R42L D25LR24L
C5L
R33L 25V 100u
C5R
TLO72
R42R D25R R24R
C3A
33R2
100u 25V
C7L
274R
33R2
BAT85 D4L Q10L
J33
MJE15031
#6897
U2
4148
680K 470p
4148
10K
10K
R40A 47K
BC550
R11 470R
R36L
B
E
25A 50V 22u 1K5
R10
25V 330u
J32
C23L D6L
330u 25V
C14 100n J31
10V
D9L
16V
LD2A
#6897
16V 10u
MJE15031
100n
D4R BAT85
LD1
Q10R
100n
274R
D6B
B
LD2B
16V
D9R
25A 68R
Q5R
A56
Q5L
A56 68R
R36R
R26R
4148 R26L R38L
R28L 150R 3K16
IN5402
C11
R9A
D6A R8A C22A
Q1A
1K
C23R D6R
R28R 150R 3K16
IN5402
4148 D12R
C7R
CLIP(RED) Q3 BC560 LD4A SIG.(GRN)
C22B
Q11L
680K
PWR_ON(GRN) R31A 100K
CHANNEL"A" 10K #4390
100n C15 LD4B CLIP(RED) SIG.(GRN)
CHANNEL"B" 10K #4390
R23L
Q11R
E
2-OZ COPPER
470P
TP2L
R30A 2K
10V
TP2R
R23R
R33R
2W 3R9
C8L
R37L
R37R
RT 5uH V
RTV
5uH RT
RTV
V
PWR._SUP.&O/P(#3538) VAGND V+ O/PL O/PL
PWR._SUP.&O/P(#3538) O/P_R O/P_R V+ AGND VMX1R
RIGHT CHANNEL M1085-6.00
220n L1L
10R 1W
MX1L
VCD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
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 D
2.00 . 2.10 2.20 . 3.00 . 3.00 4.00 . 5.00 6.00 . . . 7.00 8.00 V
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 N
1W 10R
C8R
220n L1R
#3819
#3819
2W 3R9
IN5402
D11R
IN5402
R38R
P:\1085V80.PRN
ASSEMBLY PCB MECH
M1085-8.00 M1085-8.00
O/P LINE_IN LINE_IN
00.8-5801M
HCEM BCP
"006.01 X "570.31=EZIS KNALB BLANK SIZE=13.075" X 10.600"
RED
MJF6388 MJF6668
BLK
OUTPUT"B" O/P
ENGINEERING NOTES NOTE 1 NOTE 2
ADD HEATSHRINK TUBING TO R22L/R BEFORE WAVE SOLDERING HEATSHRINK TUBING MUST NOT EXTEND ABOVE THE THERMISTOR R22L/R
FUNCTION
E OUTPUT"A"
B
+15V
E
B
Q1
-15V
Q2
SEE NOTE
GND V-
R4
SEE NOTE
C1R D16R 4148 4148 4148
D17R
GND V-
U2R
TLP62_
R5
R2R
37K90 7K96 681R 100p
R3R R4R C9R
I/P"R" SGND
CLP1R
NOTE 3
CLP2R
TRANSISTOR MOUNTING DETAIL Q3L/R
2-OZ COPPER
4148 D1R D2R 4148
#8607 SPACER
A56
BIAS
PX6A02
PX6A02
NOTE 3A
EBC USE ONLY PART #6780 FOR Q3L/R NO SUBSTITUTION ALLOWED
NOTE 4
RIBBON MARK
33R2 274R BC560
R21R R20R
NOTE 5
RT1R
Q6R
270K R51L 33K BC550 Q15L BC550 Q7L
D30L
00.8-5801M
R31B
100K
1.
Q1B
D30R
4148
6K98 2W 2K2
Q15R BC550 33K R51R 270K R50R R18R
Q7R
USE PART#5266 680N FOR EMC UNITS USE PART#6435 22N FOR N.A. UNITS
LIM.(YEL) LD3B R9B R7A
BC550
R35R
C3B
P1B
NOTE 6
Q11L/R Q9L/R
2-OZ COPPER
5W 0R15
1K
10K R7B 10K
0R15 5W
D12L D11L
M1085.PCB_DATABASE_HISTORY
MODEL(S):- SR-300 # DATE VER# DESCRIPTION OF CHANGE
#8607 SPACER B C E
00.8-5801M
00.8-5801M
LEFT CHANNEL M1085-6.00
STYLE PCB "P22"
BOARD TEST
00.8-5801M EDISREDLOS
NOTE 7
STUFF 4N35 U2R, U2L OR U2RA, U2LA (TLP621) NOT BOTH
L
N
GR N / YEL L
19 1/2" WHITE
WH I T E D BL / I N S 1 4 " BL A C K D BL / I N S
1248E
T
T
WH I T E D BL / I N S
BLACK D BL/ IN S
BL AC K D BL/IN S
1 7 " WH I T E D BL / I N S
4 1/2" BLACK
SR -30 0E A C W IRI NG VE RSIO N 1. 30 FEB 02, 99