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Reference Series

1300a

1 CHANNEL POWER AMPLIFIER

SERVICE MANUAL

Infinity Systems, Inc.

250 Crossways Park Dr.

Woodbury, New York 11797 Rev

1

8/2007

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Summary of Contents for Reference 1300A

Page 1: ...Reference Series 1300a 1 CHANNEL POWER AMPLIFIER SERVICE MANUAL Infinity Systems Inc 250 Crossways Park Dr Woodbury New York 11797 Rev1 8 2007 ...

Page 2: ...ohms 1 THD N Signal to noise ratio 85dBA reference 1W into 4 ohms Dynamic power 342W channels 2 ohms Effective damping factor 6 364 4 ohms Frequency response 11Hz 330Hz 3dB Maximum input signal 6 0V Maximum sensitivity 100mV Output regulation 11dB 4 ohms Dimensions L x W x D 14 3 16 x 9 x 2 11 16 361mm x 229mm x 69mm Fuse 3 x 20A Infinity continually strives to update and improve existing products...

Page 3: ...ower dB 85 dBA 1V signal input Input Sensitivity Low Level Input v full rated power 100mV 6V Volts 20 Frequency response Unit 3dB 11Hz 330Hz Hz 3dB Bass Boost Unit dB 45HZ 5Hz 0 6dB dB 1dB Idle Current 2ohm 0 8A A 0 15A MAX current rated power All channel 2 ohm loads 38A A DC Offset 30mV mV Damping Factor 4ohm 200 Effective damping factor 4ohm 6 364 Dynamic Power 2 ohms 342W Watts Output Regulatio...

Page 4: ...lastic Bag 1 4 BZL279112001 Packing Foam 1 5 Visit Infinitysystems com Owner s manual 1 6 Plastic Bag 1 7 Accessory kit consisting of 1 LS1CJ0402507 Mounting Screws 4 1601 203G 00 SPARE 20A FUSES 3 REMOTE REF AMP Remote Level Control 1 2100 0009 04 RJ11 control cable 1 PACKAGING 1300a Reference Series ...

Page 5: ...es 3 and 4 do not show power remote and input connections Subwoofers or voice coils connected in series Subwoofers or voice coils connected in parallel APPLICATIONS 1300a AND 1600a Figure 3 Reference 1300a or 1600a amplifier with two woofer connections NOTE Minimum impedance of each subwoofer 4 ohms if subwoofers are connected in parallel and 1 ohm if they are connected in series NOTE Minimum impe...

Page 6: ...dway While listening to music adjust the crossover for the least perceived distortion from the speakers allowing them to reproduce as much bass as possible Low Pass Filters For subwoofers choose the highest frequency that removes vocal information from the sound of the subwoofer If using the 475a to drive a subwoofer s set the crossover mode to LP low pass on the channels connected to the subwoofe...

Page 7: ...F RP 8 8 LS5KJ0301007 Screw for terminal RCA jacks 3 9 LSIAP0300607 Screw 6 10 LSIAM0300607 Screw 2 11 PL L0007 000 Transistor spring clip 2 4 12 XG 0017 2601 Bottom plate 1 13 PL L0006 000 Transistor spring clip 1 6 14 LSIAY0301201 Screw 1 15 HG 0004 2601 Rear panel 1 16 1601 203G 00 Fuse 20A ATC 3 17 LSIAA0200501 Screw 1 18 CP B00011400 LED lens 1 19 LSIAM0250401 Screw 4 20 LED PCB 1 1300a Refer...

Page 8: ...0 50 AMP SPEAKER BALANCED INPUT UNIT BALANCED INPUT UNIT GAIN CONTROL BASS BOOST VARIABLE 0dB 6dB 50HZ MODEL FREQ VARIABLE LP 11HZ 320HZ 12dB MAIN AMP FRONTL 2ohm 4ohm AUX OUT L AUX OUT R Battery VCC VCC V V 15V 15V POWER SUPPLY BLOCK DIAGRAM 1300a Reference Series 7 ...

Page 9: ...1300a Reference Series 8 ...

Page 10: ...1300a Reference Series 9 ...

Page 11: ...R27 R55 R62 R100 R101 R102 R103 R105 R121 R122 R125 0702 1113 02 Resistor 1 8W 11KΩ 5 1 R158 0702 1123 02 Resistor 1 8W 12KΩ 5 1 R154 0702 1133 02 Resistor 1 8W 13KΩ 5 1 R19 0702 1153 02 Resistor 1 8W 15KΩ 5 4 R152 R239 R256 R110A 0702 1203 02 Resistor 1 8W 20KΩ 5 3 R17 R18 R119 0702 1223 02 Resistor 1 8W 22KΩ 5 8 R106 R108 R147 R208 R1 R2 R7 R109A 0702 1243 02 Resistor 1 8W 24KΩ 5 2 R40 R209 0702...

Page 12: ...29 C30 C31 C32 C33 C34 C100 C111 C114 C115 C117 C118 C119 C120 C121 C6 C53 C54 C55 C128 C129 06D232217000 Ceramic Capacitor 220pF 100V 20 1 C38 06D234717001 Ceramic Capacitor 470PF 100V 20 1 C37 06D232207000 Ceramic Capacitor 22pF 100V 20 2 C42 C44 06D235607000 Ceramic Capacitor 56PF 100V 20 2 C201 C202 06D236817000 Ceramic Capacitor 680pF 100V 20 2 C200 C203 06D234737001 Ceramic Capacitor 473 100...

Page 13: ...r UF1602CT AKA 16 200V TO 220 2 D113 D114 2202 1620 05 Rectifier MUR1620CTA KAD 16A 200V TO 220 2 D115 D116 Miscellaneous 1380 0203 00 Temperature SwitchJUC 31F65 5 TO 220 1 RTH1 3000 INIT 02 Transformer φ47 4 8 13 18 L1 L2 φ1 0 8 4TS S1 S2 φ1 0 1 8TS S3 S4 φ1 0 4 13TS S5 S6 φ1 0 1 18TS 1 L102 1401 0001 03 Fuse holder DIP 3PIN BXS3 09 1 for F100 1601 203G 00 Fuse DIP 20A 32V 3 F100 1404 0004 00 RC...

Page 14: ... LS1AY0300452 Screw PM3 4 5MM plating white znic 2 LS1AA0301501 Screw PA3 15 plating black znic 2 LS1AA0200501 Screw PA2 5 plating 1 LS1FM0300011 Screw KM 3 6MM black znic 5 LS1FJ0200801 Screw KA2 8 platiing 2 PL L0002 000 Grounding GND 3 1 XN 10500 012 Knob ABS 757 black Ф10 5 9MM 3 XN 10500 011 Knob ABS 757black 11 7 Ф11MM red direction 1 JY297A22A001 Mica 97 22 0 1mm no hole 2 JY247A22A001 Mica...

Page 15: ...1300a Reference Series 14 ...

Page 16: ...L3 0R RJ 45SUB RJ 45GND R17 20K R18 20K R19 13K 4 6 5 VR1B B50K R38 750R R13 47K C37 471 3 2 1 U4A NJ R4560 R31 1K R39 4K7 C38 221 FR O U T FL O U T FLOUT FR OUT C46 CL334 M ET C47 CL334 M ET R48 62K R49 62K 5 6 7 8 4 U4B NJ R4560 15V 15V R27 10K C24 CC101 2 3 1 4 8 U5A NJ R4560 R50 7K5 1 3 2 VR2A B100K R51 7K5 4 6 5 VR2B B100K C48 CL104 M ET C49 CL393 M ET R55 10K 15V 15V CROSSOVER 30Hz 320Hz 6 5...

Page 17: ... 7K Q101 C1815 R113 1K R110 4 7K R112 22R R119 20K R118 33K R120 3 3K Q107 A1015 Q108 A1015 V M UTE D113 M UR1620CT D116 M UR1620CTR D108 FR204 D107 FR204 C116 CL104 C135 470 80V V1 C117 CC104 C137 100U 16V C118 CC104 C138 100U 16V V2 R144 10K0 25W C132 CL104 C136 470 80V V1 C130 CL104 C131 CL104 C143 100U 25V C140 220U 16V R151 330K D100 1N4148 C103 22U 25V R117 10K C121 CC104 C120 CC104 Q104 C18...

Page 18: ...0 25W V1 Q215 5401 Q218 A940 Q220 A1695 D201 4148 D200 4148 R240 470R C209 220U 16V R209 24K M UTE R235 56K C208 2 2U 50V R215 6 8K C207 NP220U 26V Q209 C1815 Q210 5551 R239 15K D208 4148 D204 4148 D202 4148 Q208 C1815 PRO VCC VCC R249 1K5 R250 1K5 R252 1K5 R253 1K5 R256 15K D205 4148 R234 0 15R 5W R233 0 15R 5W R259 0 15R 5W R260 0 15R 5W V2 V2 1 2 3 4 CN200 RW 200 1K R219 2K RT200 30K Q206 C4468...

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