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Содержание Sound Shaper Three

Страница 1: ...Service Manual STE E F E UEN Y E UALllEfl Audio Dynamics Corporation ...

Страница 2: ...BLESHOOTING SYMPTOM CAUSE REMEDY i7 AMP P C B TOP BOTTOM VI EWS POWER SUPPLY METER P C B TOP BOTTOM VI EWS SWITCH L P c B TOP BOTTOM VIEWS 21 SWITCH R P c B ROP BOTTOM VIEWS 22 SLIDE VOLUME L P c B TOP BOTTOM VIEWS 23 SLIDE VOLUME R P C B TOP BOTTOM VIEWS 24 ELECTRICAL PARTS LIST 25 34 EXPLODED VIEW PARTS LIST 35 36 MISCELLANEOUS PARTS LIST 37 SCHEMATIC DIAGRAM 38 39 EXPLODED VIEW 40 41 2 ...

Страница 3: ...t 15 K 18 K 21 5 KHz 2 5 5 Output level 0 775 V Control range at 0 775 V Input dB 13 5 12 5 13 5 12 5 Harmonic Distortion at 1 V Output from 20 Hz to 20 KHz 0 018 0 04 Hum and Noise ratio at 1 V Output dB 90 85 I nput shorted I HFA Dynamic Range into 10 Kn load V rms 10 9 All Controls should be Flat Input Impedance Kn 75 Output Impedance at 1 KHz n 10 Intermodulation Distortion at 1 V Output 70 70...

Страница 4: ... voltage divider R708 and R709 TR703 turn on is determined by comparing the output voltage to the reference voltage and is controlled by changes in collector current of TR705 Voltage which is rectified from D702 and D703 divider network R702 and R705 provides approx 50 VDC This is filtered further by C703 R704 and fed to the base of divider transistor TR701 which is connected to TR702 in a Darling...

Страница 5: ...al into Rin Example An input more positive than 0 V to Rin causes the output to be negative going The output continues to drop until the feedback through RF is lowered by an amount suf ficient to equalize the imbalance between the and inputs causes by the input signal Because of the amplifier s high gain and speed the imbalance between the and inputs is always small Since the voltage at the input ...

Страница 6: ...ibed except the feedback is through 0803 and RF p The amplifier output is blocked from appearing at the rectifier output by 0801 0801 is reverse biased with respect to the following stages which are returned to the 0 V DC line In this manner appearing at 0801 cathode are negative half wave pulses whose amplitude is directly proportional to the input signal level The following refers to the complet...

Страница 7: ...voltage at TR105 base always follows the voltage at T R 103 base For example An increase in voltage at TR 103 base causes the conduction of TR 103 and TR 107 to increase and feedback base drive of TR 105 to increase until the voltage at TR105 base is equal to that at TR103 base Conduction cannot increase beyond this point since the emitter voltage supplied by TR105 then tends to make TR103 conduct...

Страница 8: ...ed by D203 and filtered into an average plus DC voltage by C207 and R221 and this voltage is applied to input at pin 3 of IC203 In the same manner the output of pin 1 is positive half wave rectified by D201 and filtered into an average plus DC voltage by C205 and R233 and this voltage is applied to the input at pin 2 of IC203 Thus the difference level between Pin 2 to Pin 3 appears at Pin 1 of IC2...

Страница 9: ...12 dB 2 63 mA 1 84 V DC 15 mV 76 mV DC 10dB 2 63 mA 1 84 V DC 19 mV 102 mV DC 8dB 2 63 mA 1 84 V DC 24 mV 132 mV DC 6 dB 2 63 mA 1 84 V DC 29 mV 166 mV DC 4dB 2 63 mA 1 84 V DC 35mV 205 mV DC 2dB 2 63 mA 1 84 V DC 46 mV 278 mV DC OdB 2 63 mA 1 84 V DC 65 mV 395 mV DC 2 dB 2 63 mA 1 84 V DC 74 mV 453 mV DC 4 dB 2 63 mA 1 84 V DC 100 mV 618 mV DC 6 dB 2 63 mA 1 84 V DC 120 mV 740 mV DC 8dB 2 63 mA 1...

Страница 10: ...LI NE REC SWITCH IN LlNE REC BY PASS 21 20 8 9 BY PASS 12 11 24 23 OUTPUT INPUT MaN IN OUT EQUALIZATION SIGNAL GAIN CONTROL CIRCUIT Figure 2 LI NE REC MON ITO R and BY PASS SWITCH ES OUT MaN 24 23 BY PASS 8 9 BY PASS 12 11 INPUT r 7 i OUTPUT LlNE REC IN OUT EQUALIZATION SIGNAL GAIN CONTROL CIRCUIT 2 LlNE REC TAPE OUT Figure 3 MONITOR SWITCH IN LlNE REC 2 MaN 22 23 LlNE REC 15 14 PUT OUTPUT 11 BY P...

Страница 11: ... OUT EQUALIZATION SIGNAL GAIN CONTROL CIRCUIT Figure 5 BY PASS and MONITOR SWITCHES IN MON MON BY PASS BY PASS L1NE REC 22 23 8 7 10 11 15 14 INPUT OUTPUT LINE REC IN OUT EQUALIZATION SIGNAL GAIN CONTROL CIRCUIT Figure 6 METER SWITCH IN BY PASS EO SWITCH TO BY PASS OUTPUT 27 26 BY PASS B line 5 6 V Figure 7 BY 29 PASS 30 R145 R146 Comparator LED METER INDICATES SIGNAL AT OUTPUT JACK WHEN METER SWI...

Страница 12: ...e chassisfrom metal cabinet a Remove four screws two from each side of cabinet asshown in Figure A b Remove five screws that fasten the rear panel to the metal cabinet See Figure B 2 Removal of Front Panel a Remove chassisfrom metal cabinet asdescribed in 1 b Remove the four screws from the top Figure C and four screws from the bottom Figure D of the Front Panel c Remove knobs and pull panel off N...

Страница 13: ...MP I AMP INPUT I Ln TR n TR __ n j Lu _ ___nTR n_ TAP EMON 0 f sLM JACK VR301 LED METER CONTROL y VRIOOI SIGNAL GAIN CONTROL w I I METER AMP a COMPARATOR HALF WAVE L O l RECTIFIER a AMP IC801 o L I FRQUENCY EQUALIZER GAIN CONTROL vi R I et o I I hl t s 0 fSiGNAC GAIN CoNTROL AMP __ a C OMPARATOR COMPARATOR IC 203 I L__ _ SIGNAL GAIN CONTROL LED METER OUT T 1 I I FREQUENCY SELECTOR ...

Страница 14: ...ch Center position METER switch IN BY PASS EO EO TAPE MONITOR OUT LlNE REC REC Left VR301 Max counterclockwise Right VR401 Max clockwise Step 1 Step 2 Step 3 Adjust Audio Oscillator output for 1 V at 1 KHz as read on AC Voltmeter Set Calibrator at 0 dB Adjust VR 101 left for 1 Volt reading on output AC Voltmeter and VR 102 right for 1 Volt reading on output AC Voltmeter Adjust VR201 left for both ...

Страница 15: ...dB dB dB dB Calibrator position for 25 23 21 19 17 15 13 11 9 7 5 3 1 each LED that is not lit dB dB dB dB dB dB dB dB dB dB dB dB dB r e I I CALIBRATION I I I dB ATTENUATORl SS 3 r r r f o I I c AC V T VM I I iHmm D i ii m I 6 18 I I 0 I 4 20 I 2 0 22 888888888888 e 888888888888 c o 24 r INPUT OUTPUT IOKO AUDIO Figure 10 LOAD OSCILLATOR 1 lo 7fr NOTE r OUTPUT TERMINALS ON SET SHOULD BE CONNECTED ...

Страница 16: ... VR801 VR803 OOOOOO O Figure 11 Figure 12 CALIBRATOR SCHEMATIC RI 510 Cl 12dB R2 17 Cl R3 13 Cl R4 Ion R5 9 1 Cl R6 S S Cl R7 5 6 Cl RS 4 3 Cl R9 3 3n RIO 2 7n RII 2 2n RI2 1 7n RI3 1 3 Cl RI4 L 5 1 Cl OUTPUT TO SS 3 R AUDIO GENERATOR AC VOLTMETER NOTE All resistors are 5 or better W or hW carbon 16 ...

Страница 17: ...ir or replace the jacks 2 Faulty TAPE MONitor switch Repair or replace the switch 6 I NPUT inoperative 1 Poor contact in I NPUT input jacks Repair or replace the jacks 7 OUTPUT inoperative 1 Poor contact in OUTPUT output jacks Repair or replace the jacks 8 TAPE MONITOR inoperative 1 Poor contact in TAPE MONitor input jack Repair or replace the jack 2 Faulty TAPE MONitor switch Repair or replace th...

Страница 18: ... 4 7 K 5 6 K 1 Faulty VR511 611 6 8K Hz has no effect Repair or replace 2 Defective R326 426 327 427 328 428 353 453 354 454 or L310 41 0 Replace 19 Frequency control 8 4 K l 0 K 1 Faulty VR511 611 12 K Hz has no effect Repair or replace 2 Defective R329 429 330 430 331 431 355 455 356 456 or L311 411 Replace 20 Frequency control 15 K 18 K 1 Faulty VR512 612 21 5 K Hz has no effect Repair or repla...

Страница 19: ...AMP P C B TOP BOTTOM VIEWS TOP VIEW t I BOTTOM VIEW 19 ...

Страница 20: ...POWER SUPPLY METER p e B TOP BOTTOM VIEWS TOP VIEW BOTTOM VIEW 20 ...

Страница 21: ... 21 SWITCH L P C B TOP BOTTOM VIEWS TOP VIEW BOTTOM VIEW ...

Страница 22: ...SWITCH R P C B TOP BOTTOM VIEWS TOP VIEW BOTTOM VIEW 22 ...

Страница 23: ... 23 SLIDE VOLUME L c e TOP BOTTOM VIEWS TOP VIEW BOTTOM VIEW ...

Страница 24: ...SLIDE VOLUME R c e TOP BOTTOM VIEWS TOP VIEW 24 BOTTOM VIEW ...

Страница 25: ...210 Ceramic 150 pF 50V 5 31 25 1368 C211 Electrolytic 100 uF 16 V 31 25 1354 C212 213 Ceramic 0 047 uF 50V 31 25 1366 C301 401 Not used C302 402 Tantalum 4 7 uF 35 V 10 31 25 1054 C303 403 Tantalum 1 uF 35 V 10 31 25 1079 C304 404 Mylar 0 22 uF 50V 3 31 25 1326 C305 405 Tantalum 3 3 uF 35 V 10 31 25 1077 C306 406 Mylar 0 22 uF 50V 3 31 25 1366 C307 407 Tantalum 2 2 uF 35 V 10 31 25 1202 C308 408 T...

Страница 26: ...033 lF 50V 3 31 25 1383 Use for Serial No 1 through 5000 C343 443 Mylar 0 0068 lF 50V 5 31 25 1397 Use after Serial No 5001 C344 444 Mylar 0 056 lF 50 V 3 31 25 1381 C345 445 Mylar 0 0082 lF 50V 3 31 25 1379 C346 446 Mylar 0 033 lF 50 V 3 31 25 1384 C347 447 Polystyrene 820pF 50V 3 31 25 1396 C348 448 Mylar 0 027 lF 50V 3 31 25 1385 C349 449 Mylar 0 0039 lF 50V 3 31 25 1386 C350 450 Mylar 0 027 lF...

Страница 27: ... 002 1 003 Ceramic 0 01 uF 50V 31 25 1369 Cl004 Ceramic for Line Pass 0 01 uF 250 V X type European 31 25 1002 P 220022 DIODES 0201 202 Si Diode ITT 73N 31 53 1057 0203 204 Si Diode ITT 73N 31 53 1057 0205 206 Si Diode 10E lorSR 1K 2 31 53 1053 0207 208 Si Diode ITT 73N 31 53 1057 0209 210 Si Diode ITT 73N 31 53 1057 0701 Bridge Diode SVB l0 200 31 53 1 063 0702 703 Si Diode 10E lorSR 1K 2 31 53 1...

Страница 28: ...53 IC811 IC NJM4558DM 31 54 1453 IC812 IC NJM4558DM 31 54 1453 IC813 IC NJM4558DM 31 54 1453 IC814 IC NJM4558DM 31 54 1453 INDUCTORS L301 401 Inductor 6H 3 31 36 1851 P 370044S L302 402 Inductor 3 8 H 3 31 36 1852 P 370048S L303 403 Inductor 2 05 H 3 31 36 1853 P 370045S L304 404 Inductor 1 H 3 31 36 1854 P 370051S L305 405 Inductor 0 6 H 3 31 36 1855 P 370052S L306 406 Inductor 0 36 H 3 31 36 185...

Страница 29: ...WPZ 3 3 K J 31 23 1001 332 R115 116 Carbon WPZ 22 K J 31 23 1001 223 R117 118 Carbon WPZ 3 3 K J 31 23 1001 332 R119 120 Metal Oxide 1W 2 2 K J 31 23 1003 222 R121 122 Carbon WPZ 120 K J 31 23 1001 124 R123 124 Carbon WPZ 1 K J 31 23 1001 1 02 R125 126 Carbon WPZ 47 K J 31 23 1001 473 R127 128 Carbon WPZ 270 K J 31 23 1001 274 R129 130 Carbon WPZ 3 3 K J 31 23 1001 332 R131 132 Carbon WPZ 5 6 K J ...

Страница 30: ... 23 1001 222 R251 252 Carbon W PZ 10 Kn J 31 23 1001 103 R301 401 Carbon W PZ 330 n J 31 23 1001 331 R302 402 Carbon WPZ 220 n J 31 23 1001 221 R303 403 Carbon WPZ 180 n J 31 23 1001 181 R304 404 Carbon WPZ 150 n J 31 23 1001 151 R305 405 Carbon WPZ 270 n J 31 23 1001 271 R306 406 Carbon WPZ 240 n J 31 23 1001 241 R307 407 Carbon WPZ 200 n J 31 23 1001 201 R308 408 Carbon WPZ 240 n J 31 23 1001 24...

Страница 31: ...KnJ 31 23 1001 474 R350 450 Carbon W PZ 470 Kn J 31 23 1001 474 R351 451 Carbon WPZ 470 Kn J 31 23 1001 474 R352 452 Carbon WPZ 470 Kn J 31 23 1001 474 R353 453 Carbon WPZ 470 Kn J 31 23 1001 474 R354 454 Carbon WPZ 470 Kn J 31 23 1001 474 R355 455 Carbon WPZ 470 Kn J 31 23 1001 474 R356 456 Carbon WPZ 470 Kn J 31 23 1001 474 R357 457 Carbon WPZ 470 Kn J 31 23 1001 474 R358 458 Carbon WPZ 470 Kn J...

Страница 32: ... KSl J 31 23 1001 103 R855 856 Carbon W PZ 91 Sl J 31 23 1001 910 R857 858 Carbon W PZ 10 KSl J 31 23 1 001 103 R859 860 Carbon W PZ 2 2MSl J 31 23 1001 225 R861 862 Carbon W PZ 2 2MSl J 31 23 1001 225 R863 864 Carbon W PZ 2 2MSl J 31 23 1001 225 R865 866 Carbon W PZ 2 2MQ J 31 23 1001 225 R867 868 Carbon W PZ 2 2 MSl J 31 23 1001 225 R869 870 Carbon W PZ 2 2MSl J 31 23 1001 225 R871 872 Carbon W ...

Страница 33: ... Voltage Selector Switch PX 31 16 1021 P 180333 Power Switch USA Canadian PX 31 16 1029 P 180428 Power Switch European 31 16 1030 P 180429 S1a b LINE RECORD Switch 31 16 1031 P 180427 S2a b TAPE MONITOR OUT Switch 31 16 1031 P 180427 S3a b BY PASS EQ Switch 31 16 1031 P 180427 S4a b METER OUT Switch 31 16 1031 P 180427 TRANSFORMERS T1001 Power Transformer 120 VAC 60 Hz 31 27 1027 P 100721 USA Cana...

Страница 34: ...170274 VR401 Trimmer Resistor 50 KnB 31 16 1035 P 170274 VR501 512 Slide Volume 50 Kn 5B 31 21 1010 P 170265 VR601 612 Use for Serial No 1 1 500 of USA Version VR501 512 Slide Volume 50 Kn 5B 31 21 1003 P 170543 VR601 612 Use after Serial No 1 501 of USA Version and other Versions VR801 802 Trimmer Resistor 100 KnB 31 16 1026 P 170444 VR803 804 Trimmer Resistor 1 KnB 31 16 1027 P 170433 VR805 806 ...

Страница 35: ...an 31 14 1152 P 411993 17 Back Panel European 31 14 1153 P 411994 17 Back Panel PX 31 14 1154 P 411995 18 P C B Bracket B 31 13 1080 P 412000 19 Power Trans Bracket 31 13 1081 P 412003 20 Bottom Plate 31 13 1082 P 412004 21 Foot D 31 14 1155 P 610494 22 Amp P C B 31 17 1523 U 23151 23 Power Supply Meter P C B 31 17 1526 U 23152 24 Switch L P C B 31 17 1524 U 23153 25 Switch R P C B 31 17 1525 U 23...

Страница 36: ...ean 31 40 1013 P 690284 44 Fuse Holder European 31 18 1953 P 260008 45 Midget Fuse 160 mAT 250 V European 31 22 1407 P 250105 46 Midget Fuse 315 mAT 250 V European 31 22 1415 P 250084 47 Voltage Selector Switch PX 31 16 1021 P 180333 HARDWARE S1 Tapping Screw 3 x 8BT 2 S2 Screw black 4 x 14F S3 Tapping Screw black 4 x 12BT 3 S4 Tapping Screw black 3 x 8BT 3 S5 F lange Lock Screw 3 x 6P FL S6 Tooth...

Страница 37: ...for Gift Box B 31 59 1617 P 820626 Snow Box 31 59 1618 P 820621 Cushion Plate 31 59 1619 P 820657 Owner s Manual 31 59 1982 P 810901 Warranty Card USA 2 years 31 854 2231 P 810762 or P 810939 Warranty Card European PX 1 year 31 59 1475 P 810782 Frequency ResponseCurve Sheet 31 59 1620 P 810937 Caution Label USA European PX 31 59 1899 P 810009 C S A Caution Label Canadian 31 59 1268 P 810511 QC Lab...

Страница 38: ...rNZ S81 TR702 2S0314 E TA701 2SC94 5A P 0207 0210 ITT 73N 4 I OK P M ER IND SAME AS L CHANNEL RI44 K C212 I0 047 CI20 47 35 C204 0 1 RrOI 22 2W I A CI t L SIGNAL GAIN I 702 3 3K 0103 10E 1 POWER SW CIOO 0 01 UNSWfTCI O OlITLET I 103 82K 0701 o VRIOO 0 OK 0 0 I SIGNAL GAIN CONTROL L o g or I I 0 or 3 2 41Hz 68Hz 39Hz 56Hz 84Hz R1002 OOK SIGNAL GAIN CONTROL R I N 0 0 0 0 I e or or or g C1 At 130V 60...

Страница 39: ......

Страница 40: ...Midlands B64 5QH England BSR GERMANY GMBH Am Boksberg 4 3203 Sarstedt Hannover West Germany BSR FRANCE S A 22 24 Allee des Jacheres Z 1 Sofilic Sud 94263 Fresnes Cedex 431 France JAPAN BSR JAPAN LTD No 7 Azuma Building 1 9 Kanda Sakuma cho Chiyoda ku Tokyo 101 Japan NEW ZEALAND BSR NEW ZEALAND LTD G P O Box 26 30 271 Victoria St W Auckland 1 New Zealand Audio Dynamics BSR US T ADC PROFESSIO AL PRO...

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