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1、NOTES: UNLESS OTHERWISE SPECIFIED APPLICATION USED ONNEXT ASSY TOLERANCES ARE: DECIMALSANGLESDECIMALS DIMENSIONS PER ANSI Y14.5-1982 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES. -+ O -+-+ .XX.XXX1/2.02.010 DEBURR EDGES .XXX R MAX AUDIO PRODUCTS, INC. D 1N4148 1N4735 A 5532 10K-4 18p 75K 47 A
2、 SPKR SIG +INPUT RN 909 BA U 901-B 3 5 6 8 4 7 +15 V -15 V DC GND REF GND C 914 R 940 R 942 C 916 C 915 R 941 U 901-A 2 1 R 991 D 953 D 952 GND GND PWR-ON 6.2 V AUDIO INPUT STAGE C 957 68 p HEAVY LINE SHOWS MAIN SIGNAL PATH AR 990R 993 A 470-1W 10K-2W R 992 R 988 47-16NP C 951 CLIP 10K-2W R 1000 470
3、-10V C 960 470-10V C 959 220-16NP C 952 R 994 10K-2W THERMAL C 943 47-35V C 944 47-35V 1N4004 2200 35V PTC-60C BH-100 D 937 C 945 R 1007 SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B 18 Vac1 J 904 J 903 D 938 D 942 D 941 D 947 +24 V +15 V -15 V -24 V 1N4004 -15 V REG -24 V UNREG C 954 100 25 V +24 V UNREG
4、 +15 V REG THERMAL RELAY DR GND -24 V 1 4 3 2 J 902 B 901 18 Vac2 7815U 9043 2 1 D 940 1N4746, 18V D 939 1N4746, 18V C 953 100 25 V 2200 35V C 946 7915U 905 32 1 CT3 XF PTC XF PTC 4 5 470-1W R 982 1N4004 D 936 1N4004 1N4004 1N4004 10-25V C 941 TO +15 V TO -15 V SPEAKER BUS 47K-1W R 923 TO +46 V RAIL
5、 MUTE THERMALLY CONNECTED TO Q 911 U 910 5K 5K VR 903 VR 902 +CURR LIM -CURR LIM D GS Q 901 .10 C 901 2.7-2W R 903 R 902 22 FP D GS R 90122 FP 15000-50V 2 PL Q 902 C 933 C 934 J 901 10 U 906+142 V RAIL MUR1510 D 901 +94 V RAIL D GS 2.7-2W MUR1510 15000-50V 2 PL 7 Q 903 Q 904 R 910 C 931 C 932 D 902
6、22 FP D GS R 90622 FP U 907 +46 V RAIL .10 C 902 15000-50V 2 PL .22-3W 6 PL 22-1W 2SA1302 6 PL .22-3W 6 PL 2SC3281 6PL IN5402 22-1W 4.7-1W 4.7-1W 2SA1306B 2SC3298B 15000-50V 2 PL .10 3.9-2W 15K A 1K-4 2.7K 5532 1N5402 2uH 10-2W 4 PL .10 1 2 3 4 5 6 7 8 +15 V -15 V A C D B U 902-A U 902-B C 956 R 995
7、C 955 RN 910 R1001 C 929 C 930 L 901 R 933 R 934 R 935 R 936 C 913 R 929 D 907 D 908 R 932 C 912 C 935 C 936 4 1 3 8 11 2 5 HEATSINK GROUND SPEAKER OUTPUT SPEAKER COMMON TRANSFORMER CENTER TAP SPEAKER BUS R 930R 926R 928R 925R 924 R 927 Q 933 Q 905Q 906Q 907Q 908Q 909Q 910 R 937 R 938R 939 Q 934 Q 9
8、11Q 912Q 913Q 914Q 915Q 916 R 954R 953R 951R 952R 950R 949R 955 +46 +94 +142 V SWITCHED BUS AUDIO OUTPUT STAGE -46 -94 -142 V SWITCHED BUS SWITCHING THRESHOLD REFERENCE 6 220p .0022 1N4004 D 904 .0033 C 961 1N4004 D 903 VR 901 100 BIAS 25 C R 931 .01 C 911 50 OHM BIAS NETWORK 4.7 FP 7.5V D 951 2.7-2
9、W D GS D GS MUR1510 .10 D 905 R 958C 917 Q 917 Q 918 22 FPR 959 R 96022 FP R 956 3K-2W U 908 SOURCE REF 7.5V D 965 C 924 470-10V 15000-50V 2 PL C 937 C 938 9 MUR1510 D 906 D GS D GS 15000-50V 2 PL Q 919 Q 920 C 939 C 940 12 C 921 470-10V R 962 3K-2W R 963 R 964 22 FP 22 FP U 909 -94 V RAIL -142 V RA
10、IL SOURCE REF .102.7-2W C 920R 961 1N4148 1N4735 D 955 D 954 6.2 V NOTES. 1. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED. 2. ALL CAPACITORS 100V UNLESS NOTED. TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES. PC-004001-00 PC-004002-00 PC-004003-00 PC-004004-00 DISPLAY PCB INPUT PCB AC PCB SPKR P
11、CB AMP CHANNEL 101-199201-2991-29 301-399401-49931-49 501-599601-69951-69 701-799801-89971-99 901-UP (SAME BOARD FOR CH 1, CH2) PCB NUMBER DESCRIPTION CH 1 PARTS CH 2 PARTS PARTS IN COMMON .0022 -46 V RAIL 3K-2W R 976 T 6 +15 V T15 -15 V T16 PROCESSING BUFFER 50C +O.5V 90C +8V THERM ADJUST, 0.5-8.5V
12、 THERMAL SENSING T 1 T 3 GROUND MUTING INPUT CAP. TIMING CAP. T 2 RELAY DRIVER T 4 ON-OFF MUTING DELAY RELAY MUTE -24V RUN +15V MUTING BUS RUN 0V MUTE +8V SHUTDOWN MUTING IC-000010-00 MUTE BUS T 5 T 7 THERMAL SENSE, 0-8V T 8 THERMAL BUS, 0-8V T 9 OP-AMP OUT - HF PROTECTSHUTDOWN DETECTORS TO MUTING D
13、C PROTECT SENSE T10 THERMAL LIMITING T11 IDLE -1.2V CLIP +3V PEAKS0-3Vac NORMAL AUDIO 4.5-6.5Vac CLIPPING PEAKSMUTE +4.5V LIMITING THRESHOLD +4.5V CLIP RECTIFIER-BUFFER HIGH FREQ DC RECTIFIER THERMAL T12 T13 T14 CLIP BUS OP-AMP OUT OPTOCELL T25 POSITIVE DRIVER, +0.6V IDLE T24 NEGATIVE DRIVER, -0.6V
14、IDLE T23 POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT POSITIVE BIAS CONTROLLER T22 POSITIVE CURRENT FEEDBACK +3V PEAK T21 POS CURRENT TRIMMER T20 OUTPUT VOLTAGE FEEDBACK LOAD IMPEDANCE SENSING T19 NEGATIVE TRIMMER BIAS ENABLE NEGATIVE BIAS CONTROLLER T18 NEGATIVE CURRENT FEEDBACK, -3V PEAK T17 NEGATIV
15、E BYPASS, -7.5V NORMAL, -2.5V SHORT T7 T8 GATE SOURCE REF GATE DRIVER SCHMIDTT COMPARATOR LOSS-OF-SAT SHUTDOWN T9 HIGH RAIL IC-000008-00 T4 SLEWNEG SUPP T6 BOOTSTRAP CAP T1 REF VOLT T2 LOW RAIL T3 SHUTDOWN T5 T7 T8 GATE SOURCE REF GATE DRIVER SCHMIDTT COMPARATOR LOSS-OF-SAT SHUTDOWN T9 HIGH RAIL IC-
16、000008-00 T4 SLEWNEG SUPP T6 BOOTSTRAP CAP T1 REF VOLT T2 LOW RAIL T3 SHUTDOWN T5 T6 T7 GATE GATE DRIVER LOSS-OF-SAT SHUTDOWN IC-000009-00 T5 GATE PWR T4 SLEW T3 SHUTDOWN T2 LOW RAIL T1 REF VOLT SOURCE REF SCHMIDTT COMPARATOR T6 T7 GATE GATE DRIVER LOSS-OF-SAT SHUTDOWN IC-000009-00 T5 GATE PWR T4 SL
17、EW T3 SHUTDOWN T2 LOW RAIL T1 REF VOLT SOURCE REF SCHMIDTT COMPARATOR SCHEDULE OF TEST POINTSJ 905-1THRUJ 905-8 J 905-8 SWITCHED NEG AMPLIFIER RAIL-HIGH VOLTAGE J 905-6 SWITCHED POS AMPLIFIER RAIL-HIGH VOLTAGE J 905-8 4. R 1007 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK. 125 W
18、, 60 V MINIMUM, ON-RESISTANCE 0.030 OHMS MAX. 6. ZENERS D 951, 965 MARKED 7.5 V TESTED FOR LOW LEAKAGE, QSC P/N QD-0007.5-ZT. 7. ZENERS D 952, 955, 6.2V-500mW, TESTED FOR LOW LEAKAGE, QSC P/N QD-000024-QD. 8. PARTS MARKED WITH TRIANGLE MUST BE REPLACED WITH EXACT TYPE ONLY. 9. PARTS ENCLOSED WITHIN
19、DOTTED OUTLINE HAVE VOLTAGES GREATER THAN 42V. 3. BRIDGE RECTIFIER B 901, 1.5A, 100V. 5. Q 901-904, 917-920 ARE SWITCHING FETS. QSC P/N QD-000013-QD OR QD-000031-QD. SCHEMATIC, AMPLIFIER CHANNEL, EX 4000-B +CURR LIM -CURR LIM BIAS J 905-1 J 905-2 J 905-4 J 905-3 J 905-4 AMPLIFIER LOOP OPAMP OUTPUT J
20、 905-3 SWITCHING THRESHOLD REFERENCE VOLTAGE J 905-2 POSITIVE LIMITING VOLTAGE J 905-1 NEGATIVE LIMITING VOLTAGE PC-004200-00 6.8K412 30.0K-.5W .15 RESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PTPART NUMBERING SCHEDULE FOR PCBS USED IN EX-4000: C 903 47-50V R 911 22K-1W C 904 47-50V R
21、917 22K-1W R 989 TO +15V R 987 590 VTL 5C4 U 903 A 7 9 14 13 12 5 6 1 3 4 2 10 8 11 27K R 996 60.4K 330K C 962 10 pF 750K 750K 1K 1K 332 332 1N4148 R 947 R 943 R 944 R 948 R 945 R 946 1N4148 D 921 D 923 D 922 D 924 .0022uF 200V J 905-6 R 1002 10. Q 933 AND Q 934 MUST BE INSULATED FROM THIER HEATSINK
22、 (WHICH ARE CONNECTED TO GROUND). 47 C 963 SH-0040000-00 1 SH-004000-00 NONE SCHEMATIC EX 4000B AMPLIFIER CHANNEL EX 4000B LG. 200 V 200 V 1N5956B 1N5956B SGM SG MORALES 11-01-91 6-22-94 U U SH4000U1.FCDSH4000T1.FCD R 904 REV U, 2-15-95, FOR PC-004200-00 REV K WP-004202-00 WP-004202-01SVC CH MOD Rad
23、ioFans.CN 收音机爱 好者资料库 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS , THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS. REVISIONS ZONEREV DESCRIPTION DATE APPROVED SIZE FSCM NO.DWG NO.REV SHEET SCALE COS
24、TA MESA, CALIFORNIA FINISH MATERIAL CONTRACT NO. APPROVALS DRAWN CHECKED ISSUED DO NOT SCALE DRAWING PARTS LIST DATE CAD FILE NO. APPLICATION USED ONNEXT ASSY NOTES: UNLESS OTHERWISE SPECIFIED TOLERANCES ARE: DECIMALS ANGLESDECIMALS DIMENSIONS PER ANSI Y14.5-1982 UNLESS OTHERWISE SPECIFIED DIMENSION
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