QSC EX2500 free download

File name QSC-EX2500 pwramp.pdf

SH-002500-00 1 L A B C PROD RELEASE PER ECO 1040 GLF PER ECO 1095 GLF REVISED PER ECO 1219 REVISED PER ECO 1194 REVISED PER ECO 1262 REVISED PER ECO 1290 REVISED PER ECO 1367, R 987-THERMAL REVISED PER ECO 1462, R996, R991, U903 REVISED PER ECO 1692, R989 WR REVISED PER ECO 1724, R989 REVISED PER ECO 2009, R987 REVISED PER ECO 2259, R997 AC L G L G SGM L G RDS L G PHQ PHQ 3-25-91 6-10-91 9-13-91 9-13-91 10-9-91 11-6-91 1-27-92 10-14-92 12-15-92 1-29-93 9-23-93 G.F. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. S.G.M. SCHEMATIC, AMPLIFIER CHANNEL, EX 2500 REV G, 10-14-92, FOR PC-004200-00 REV E J 904 J 903 +24 V +15 V -15 V -24 V D 938 1 1 +24 V UNREG +15 V REG -15 V REG -24 V UNREG C1 D E 18 Vac 1N4004 1N4004 1N4004 1N4004 D 942 3 U 904 C 954 100 25 V C 953 100 25 V 7815 3 2 1 D 937 1N4004 C 945 2200 35V F B 901 2 G 18 Vac D 941 4 H J D 947 2 D 940 1N4746, 18V D 939 1N4746, 18V 3 CT J 901 XF PTC XF PTC D 901 JUMPER HIGH RAIL +120 V RAIL N.C. 10 D 936 1N4004 C 941 10-25V R 982 470-1W C 946 2200 35V 2 4 5 K L 3 1 U 905 7915 J 902 1 4 3 U 907 GND -24 V RELAY DR THERMAL LOSS-OF-SAT GATE DRIVER SHUTDOWN IC-000008-00 SCHMITT COMPARATOR GATE T9 D 7 R 906 T8 22 FP G D S C 931 C 932 12000-63V 2 PL MUTING INPUT CAP. C 943 47-35V C 944 47-35V T1 T2 T3 RELAY TIMING CAP. ON-OFF MUTING DELAY SHUTDOWN MUTING RELAY MUTING BUS MUTE +8V RUN 0V U 910 IC-000010-00 2 R 907 SOURCE REF 22 FP G S Q 903 Q 904 T7 REF VOLT LOW RAIL SHUTDOWN SLEW NEG SUPP BOOTSTRAP CAP GROUND MUTE -24V RUN +15V R 910 2.7-2W C 902 .10 R 1007 PTC-60C BH-100 THERMALLY CONNECTED TO Q 911 T1 T2 T3 T4 T5 T6 D 902 MUR1510 T4 MUTE 10 TO +15V DRIVER MUTE BUS T5 THERM ADJUST, 0.5-8.5V C 904 47-50V D 951 7.5V +60 V RAIL R 917 22K-1W R 987 330K T6 R 989 60.4K THERMAL SENSING THERMAL SENSE, 0-8V 50C +O.5V 90C +8V SPEAKER BUS +60 +120 V SWITCHED BUS T7 THERMAL BUS, 0-8V PROCESSING BUFFER THERMAL 8 T8 R 996 C 952 220-16NP 27K T9 DC PROTECT SENSE OP-AMP OUT - HF PROTECT J 905-3 SHUTDOWN DETECTORS THERMAL HIGH FREQ DC RECTIFIER TO MUTING R 931 50 OHM 25 C VR 901 100 BIAS U 902-B 5 J 905-6 R 927 22-1W U 902-A 5532 1 3 2 4 R 924 R 925 R 928 R 926 R 930 R 929 .22-3W 6 PL D 907 1N5402 C 929 C 930 12000-63V 2 PL 1 3 TRANSFORMER CENTER TAP T10 R 994 10K-2W T11 OP-AMP OUT THERMAL LIMITING C 956 680p +15 V 8 7 CLIP RECTIFIER-BUFFER LIMITING THRESHOLD +4.5V 0-3Vac NORMAL AUDIO 4.5-6.5Vac CLIPPING PEAKS IDLE -1.2V CLIP +3V PEAKS MUTE +4.5V R1001 15K SWITCHING THRESHOLD R 947 332 R 943 750K D 921 1N5955A 180 V Q 905 Q 933 2SC3298B R 937 4.7-1W Q 906 Q 907 Q 908 Q 909 Q 910 2SA1302 6 PL AUDIO OUTPUT STAGE HEATSINK GROUND L 901 2uH 8 SPEAKER OUTPUT 11 T12 OPTOCELL C 911 .01 D 903 1N4004 BIAS NETWORK 6 4 -15 V REFERENCE C R 945 1K D 922 1N4148 R 933 R 934 10-2W 4 PL C 913 .10 Q 916 D 908 IN5402 R 935 R 936 2 5 T13 CLIP BUS D 923 1N4148 CLIP 11 TO +15 V T14 +15 V A R 995 2.7K C 955 .0022 D B R 944 750K