Ampex-600-tape-sch维修电路原理图.pdf

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1、REC HD GROUND ERASE HD GROUND REC B+ B+ MOTOR AC MOTOR AC 1 2 3 4 5 6 7 8 P102SJ202P PLAYBACK HEAD ERASE HEAD RECORD HEAD J201S TO P101P B201 MOTOR C203 2.5 220VAC R202 20K 10W C202 .01 500V C2O1 .01 500V 1 2 3 S201 (NOTE 4) R124 10K 1W C114A 20 450V C113 100PF R121 470 C112 .5 R123 22K 2W R120 470K

2、 R122 2.2K L101 20MH C110 .01 500V R119 47K 1WR115 1M C107 100PF REC EQU R201 100 BIAS ADJ R116 33K 1% R117 100K C108 .1 5% R113 270K R114 250K REC CAL C106 .1 R112 47K R108 22K C104 .047 R109 270K R110 270K C118 .0056 5% C111 .0047 5% C101B 40 25V R118 560 C105 .0047 5% R111 1.5K 5% R125 250K LINE

3、REC LEVEL C103A 10 450 R107 47K R106 100K MIC REC LEVEL C102 .1 R105 100K 1W R104 100K 1W C101A 40 25V R103 82K R102 2.2K R101 2.2M J101S MICROPHONE J102S LINE INPUT V103B V103A 1/2 12AU7 V102B 1/2 12AY7 V102A 1/2 12AY7 V101 5879 1/2 12AU7 C125 350PF 5% 500V C126 350PF 5% 500V C127 .001 5% 500V R146

4、 4.7K R145 4.7K R147 10K NOISE BAL C124 .001 5% 500V V107A 1/2 12AU7 V107B 1/2 12AU7 R144 10K VU J103SJ104S PHONESOUTPUT R142 820 R143 4.7K R141 1M C123 4 150V R139 1.5K R138 1M R140 47K C122 .01 500V R136 100K 1W R137 250K PB LEVEL C121 .047 R133 82K C101C 40 25V R132 2.2K C103B 10 450V R131 1M C10

5、3B 10 450V R130 10K C116 .047 5% C118 .022 R128 1.8K PB EQU P101P TO J201S PLAYBACK HEAD R127 470K R129 220K 1W R134 22K R135 100K 1W 1 INPUT 2 TAPE S102 MONITOR SELECTOR V106A 1/2 12AU7 V106B 1/2 12AU7 V105 5879 V104 6F5 R148 4.7K 2W R149 4.7K 2W C103D 10 450V C103C 10 450V C114C 20 450V C114B 20 4

6、50V L102 5.5H V108 5Y3 T101 HUM BAL R150 100 J105P 117 VAC F101 1 AMP S101 V101V104 V105V102V103V106V107 METER LAMPS NOTES 1 ALL CAPACITORS IN MICROFARADS, 400 VOLTS UNLESS OTHERWISE NOTED 2 ALL RESISTORS IN OHMS, 10%, 1/2 WATT UNLESS OTHERWISE NOTED 3 DC VOLTAGES MEASURED WITH 20K OHMS/VOLT METER W

7、ITH RESPECT TO CHASSIS 4 NEUTRAL 1, PLAY 2, RECORD 3 AMPEX MODEL 600 MAGNETIC TAPE RECORDER (CIRCA 1955) 12 3 6 9 7 4 3 6 9 7 4 38 4 CAP 1 2 3 6 7 8 1 2 3 1 2 3 1 2 3 6 7 8 6 7 8 6 7 8 6 4 8 2 4 5 2 7 4 5 4 5 99 4 5 9 4 5 9 4 5 +335V +315V +275V +250V +235V +205V +265V REDRAWN 05 MAY 2002 by MIKE ADAMS RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库