Infinity-1300A-pwr-sm 电路图 维修手册.pdf

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1、 Reference Series 1300a 1 CHANNEL POWER AMPLIFIER SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev3 8/2008 RadioFans.CN 收音机爱 好者资料库 - CONTENTS - BASIC SPECIFICATIONS .1 DETAILED SPECIFICATIONS .2 PACKAGING.3 APPLICATIONS4 INSTALLATION/SETUP.5 BASIC TROUBLESHOO

2、TING.5 EXPLODED VIEW/PARTS LIST rev0.6 EXPLODED VIEW/PARTS LIST rev1.7 NOTE ON TOP COVER.8 AMPLIFIER BLOCK DIAGRAM.9 P.C.B. DRAWINGS.10 ELECTRICAL PARTS LIST rev0. 12 ELECTRICAL PARTS LIST rev1. 16 IC/TRANSISTOR PINOUTS rev0.19 IC/TRANSISTOR PINOUTS rev1.20 SCHEMATICS rev0.21 SCHEMATICS rev1.24 BULL

3、ETIN INF2008-02.27 TECH TIP INFTT2008-01.28 Reference 1300a Basic Specifications Output Power: 200W RMS x 1 4 ohms; 1% THD + N (14.4 VDC) 300W RMS x 1 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

4、 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, as well as create new

5、ones. The specifications and details in this and related Infinity publications are therefore subject to change without notice. 1300a Reference Series 1 RadioFans.CN 收音机爱 好者资料库 INFINITY REFERENCE 1300a AMPLIFIER SPECIFICATIONS TEST VOLTAGE 14.4 +0.1V Specification Rating Unit Remarks Power Output 4oh

6、m loads 50Hz 200W x 1 Watts (stereo mode)for each . ch 1.0%THD (Unit:W)(LPF=22K) Power Output 2ohm loads 50Hz 300W x 1 Watts (stereo mode)for each .ch 1.0%THD (Unit:W)(LPF=22K) THD Power 4 ohm loads and 1MDReference (Unit:%) LPF=22K 0.1% 50Hz % THD Power 2 ohm loads and 1MDReference (Unit:%) LPF=22K

7、 0.1% 50Hz % Full rated power Distortion 1KHz LPF=22KHz 0.1% % Signal/Noise Ratio a: 1 watt into 4 ohms b: full rated power (dB) 85 dBA 1V signal input Input Sensitivity Low Level Input( v) :full rated power 100mV-6V Volts 20% Frequency response (Unit:-3dB) 11Hz330Hz Hz -3dB Bass Boost:(Unit:dB) 45H

8、Z (5Hz ) 06dB 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 Regulation 4 ohms 0.11dB dB Remote Operating Voltages: 5V OFF 4

9、V Volts 1V Turn on delay time 2 to 3 Seconds Circuit Protection a. Temperature b. Speaker Short Circuit c. Operating Voltage Range 75 5 deg C Yes 816V Dimensions (L x W x H): 14-3/16 x 9 x 2-11/16 (361mm x 229mm x69mm) Inches mm Fuses 20A x 3 A 1300a Reference Series 2 RadioFans.CN 收音机爱 好者资料库 Item P

10、art Number Description Qty 1 CH4482901201 Outer Carton 1 2 REF1300a REF1300a Amplifier 1 3 Plastic Bag 1 4 BZL279112001 Packing Foam 1 5 Visit I Owners 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

11、Control 1 2100-0009-04 (RJ11) control cable 1 PACKAGING 1300a Reference Series 3 3 The Reference subwoofer amplifiers are single-channel amplifiers. There are two sets of terminals to make it easy to connect multiple woofers. Either set of (+/) terminals may be used when connecting woofers. To the r

12、ight are four application diagrams to help plan your subwoofer system installation. NOTE: For simplicity, Figures 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 1300aAND1600a Figure

13、 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 impedance of subwoofer = 2 ohms Figure 4. Reference 1300a or 1600a amplifier with on

14、e woofer connection. 1300a Reference Series 4 SETTING INPUT SENSITIVITY 1. Initially turn the INPUT LEVEL control(s) to the minimum (counterclockwise) position. 2. On the source unit, increase the volume control to 3/4 volume. Slowly increase the INPUT LEVEL control(s) toward three oclock until you

15、hear slight distortion in the music. Then reduce the INPUT LEVEL slightly until distortion is no longer heard. NOTE: After the source unit is on, blue LEDs (on the top panel) will light, indicating the amplifier is on. If not, check the wiring, especially the remote connection from the source unit.

16、Also refer to “Troubleshooting.” REMOTE LEVEL CONTROL The 1300a, 1600a and 5350a include a remote level control. This will allow the subwoofer level to be adjusted from the listening position. Connect the remote level control using the RJ11 jack on the side of the amplifier. Install the control modu

17、le in the front of the vehicle within easy reach of the driver. Both the under- side of the dash and the center console are suitable locations. UNDER-DASH MOUNTING Select a mounting location that allows easy access to the control while driving. Using the REMOTE LEVEL control as a template, mark and

18、drill holes in the mounting surface. Attach the REMOTE LEVEL control using the mounting screws provided (Figure 11). Figure 11. Under-dash mounting of the REMOTE LEVEL control. Refer to the illustrations on the previous pages for control location. Reconnect the () negative lead to the vehicles batte

19、ry. Apply power to the audio system and play a dynamic music track. SETTING THE CROSSOVER(S) Determine your system plans and set the crossover-mode switch accordingly. If your system design does not include a subwoofer, set the crossover mode to FULL and skip to “Setting Input Sensitivity.” If your

20、system includes a subwoofer, set the crossover mode to HP (high-pass) for your full-range speakers. Adjust the crossover frequency to limit bass, and provide increased system volume with less distortion. Mode Switch: Full: Allows a full-range signal through to the speakers; can be used with larger f

21、ull-range speakers such as 6 x 9s. HP: Allows a high-pass signal through to the speakers; should be used with most loudspeakers (can protect your full-range speakers from being overdriven with low frequencies, one cause of speaker damage). LP: Allows only bass to pass through to the speakers; should

22、 be selected when powering subwoofers. High-Pass Filters: Initially set the crossover- frequency control midway. 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,

23、 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 subwoofer. NOTE: The 1300a, 1600a and the subwoofer output of the 5350a are low-pass only

24、and do not have a crossover-mode switch. INSTALLATION ANDSETUP Route the cable behind the dash or other interior panels and under the carpet. Do not route the cable outside the vehicle. Connect the RJ11 cable between the RJ11 receptacle on the amp and the receptacle on the REMOTE LEVEL control (Figu

25、re 12). Figure 12. REMOTE LEVEL control electrical connection. SETTING THE BASS BOOST The Bass Boost control will allow you to enhance the bass output of your system at 50Hz up to 6dB. AUX OUTPUT Reference amplifiers (except 5350a) are equipped with full-range outputs that can be used to connect add

26、itional amplifiers. STATUS LEDs Power: Indicates the amplifier is on. Protection: Refer to “Troubleshooting” for specific indications. Figure 13. LED status. TROUBLESHOOTING PROBLEM: No audio (POWER LED is off). CAUSE and SOLUTION: No voltage at BATT+ and/or REM terminals, or bad or no ground connec

27、tion. Check voltages at amplifier terminals with VOM. PROBLEM: No audio (PROTECT LED glows red). CAUSE and SOLUTION: DC voltage on amplifier output. Amplifier may need service; see enclosed warranty card for service information. PROBLEM: No audio (PROTECT LED glows red). CAUSE and SOLUTION: Amplifie

28、r is overheated. Make sure amplifier cooling is not blocked at mounting location; verify that speaker-system impedance is within specified limits. PROBLEM: No audio (PROTECT LED glows red). CAUSE and SOLUTION: Voltage less than 9V on BATT+ connection. Check vehicle charging system. PROBLEM: No audio

29、 (PROTECT LED glows red). CAUSE and SOLUTION: Voltage greater than 16V or less than 8.5V on BATT+ connection. Check vehicle charging system. PROBLEM: Distorted audio. CAUSE and SOLUTION: Input sensitivity is not set properly, or amplifier or source unit is defective. Check INPUT LEVEL setting, or ch

30、eck speaker wires for shorts or grounds. PROBLEM: Distorted audio (PROTECT LED glows intermittently). CAUSE and SOLUTION: Short circuit in speaker or wire. Remove speaker leads one at a time to locate shorted speaker or wire, then repair. PROBLEM: Music lacks “punch.” CAUSE and SOLUTION: Speakers ar

31、e not connected properly. Check speaker connections for proper polarity. 1300a Reference Series 5 Rev0 - Serial number starting with EV0003- 1300a Reference Series 6 Rev1 - Serial number EV0017-01001 and above 1300a Reference Series 7 NOTE ON TOP COVER FOR INFINITY REFERENCE MODELS REF475A, REF1300A

32、, REF1600A There was a revision in the top cover design starting with the serial number range(s) noted below, or identified by the brace design in the supplied images. Note the Rev1 Top cover will not fit properly on the original heatsink. Top Cover Part Numbers MODEL PART NUMBER SERIAL NUMBER REF47

33、5A SG-0016-2601 EV0001-01000 to EV0001-09138 REF475A SG-0001-2607 EV0001-09139 And above REF1300A SG-0016-2601 EV0003-01000 to EV0003-08606 REF1300A SG-0001-2607 EV0003-08607 And above REF1600A SG-0016-2601 EV0004-01000 to EV0004-11811 REF1600A SG-0001-2607 EV0004-11812 And above 1300a Reference Ser

34、ies 8 1234 A B C D 4321 D C B A OP OP OP OP OPOP 11253201132050 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 S

35、UPPLY BLOCK DIAGRAM 1300a Reference Series 9 1300a Reference Series 10 1300a Reference Series 11 REFERENCE 1300a Electrical Parts List Part NumberQty Reference Designator MAIN BOARD Resistors 0702-10R0-02 Resistor CARBON 1/8W 0 5% 9R34 R35 R61 L1 L2 L3 L4 JP140 JP141 0702-34R7-02 Resistor 1/2W 4.7 5

36、% 3R242 R36 R37 0702-1220-02 Resistor 1/8W 22 5% 5R112 R210 R211 R212 R213 0702-1680-02 Resistor 1/8W 68 5% 2R202 R203 0702-1101-02 Resistor 1/8W 100 5% 7R42 R132 R133 R134 R136 R137 R138 0702-1221-02 Resistor 1/8W 220 5% 5R145 R129 R130 R131 R207 0702-1471-02 Resistor 1/8W 470 5% 1R240 1201-1021-03

37、 Variable Resistor1k 1RW200 0702-1561-02 Resistor 1/8W 560 5%2R127 R128 0702-1751-02 Resistor 1/8W 750 5% 1R38 0702-1102-02 Resistor 1/8W 1K 5% 10 R25 R30 R31 R32 R33 R113 R114 R200 R201 R105A 0702-1152-02 Resistor 1/8W 1.5K 5% 6R238 R241 R249 R250 R252 R253 0702-1182-02 Resistor 1/8W 1.8K 5% 1R41 0

38、702-1202-02 Resistor 1/8W 2K 5% 3R104 R219 R115 0702-1222-02 Resistor 1/8W 2.2K 5% 4R124 R217 R218 R204 0702-1332-02 Resistor 1/8W 3.3K 5% 1R120 0702-1472-02 Resistor 1/8W 4.7K 5% 5R109 R110 R205 R26 R39 0703-1652-03 Resistor 1/8W 6.5K 1% 1R106A 0702-1682-02 Resistor 1/8W 6.8K 5% 5R159 R157 R214 R21

39、5 R216 0702-1752-02 Resistor 1/8W 7.5K 5% 2R50 R51 0702-1103-02 Resistor 1/8W 10K 5% 14 R117 R21 R22 R27 R55 R62 R100 R101 R102 R103 R105 R121 R122 R125 0702-1113-02 Resistor 1/8W 11K 5% 1R158 0702-1123-02 Resistor 1/8W 12K 5% 1R154 0702-1133-02 Resistor 1/8W 13K 5%1R19 0702-1153-02 Resistor 1/8W 15

40、K 5% 4R152 R239 R256 R110A 0702-1203-02 Resistor 1/8W 20K 5% 3R17 R18 R119 0702-1223-02 Resistor 1/8W 22K 5% 8R106 R108 R147 R208 R1 R2 R7 R109A 0702-1243-02 Resistor 1/8W 24K 5% 2R40 R209 0702-1303-02 Resistor 1/8W 30K 5% 1R153 0702-1333-02 Resistor 1/8W 33K 5% 1R118 0702-1473-02 Resistor 1/8W 47K

41、5% 23 R13 R16 R20 R23 R24 R28 R29 R60 R63 R126 R107 R3 R4 R5 R6 R8 R9 R10 R11 R12 R14 R15 R64 0702-1563-02 Resistor 1/8W 56K 5% 3R150 R58 R235 0702-1623-02 Resistor 1/8W 62K 5% 2R48 R49 0702-1823-02 Resistor 1/8W 82K 5% 1R59 0702-1104-02 Resistor 1/8W 100K 5% 6D111 R149 R53 R54 R155 R156 0702-1154-0

42、2 Resistor 1/8W 150K 5% 2R56 R57 0702-1334-02 Resistor 1/8W 330K 5% 1R151 0702-1474-02 Resistor 1/8W 470K 5% 1R206 0702-1205-02 Resistor 1/8W 2M 5% 1R44 0702-3101-02 Resistor 1/2W 100 5% 2R222 R223 0702-24R7-02 Resistor 1/4W 4.7 5% 6R225 R226 R227 R228 R229 R231 0702-3271-02 Resistor 1/2W 270 5% 2R2

43、20 R221 0702-2103-02 Resistor 1/4W 10K 5% 2R143 R144 0702-2203-02 Resistor 1/4W 20K 5%1R148 0705-515X-07 Cement Resistor 5W 0.15 5% 6R233 R234 R236 R237 R259 R260 1204-5031-30 Variable ResistorB50K 10% LEVEL1VR1 1204-1041-07 Variable ResistorB100K 10% LP FREQ.1VR2 Description Rev0 - Serial number st

44、arting with EV0003- 1300a Reference Series 12 Part NumberQty Reference DesignatorDescription MAIN BOARD 1204-5041-05 Variable Resistor C500K 10% BASS BOOST1VR3 0704-6202-02 Resistor 2W 2K 5% 2R107A R108A 0702-3220-02 Resistor 1/2W 22 5% 3R142 R141 R140 0702-1201-02 Resistor 1/8W 200 5% 1R45 0702-156

45、2-02 Resistor 1/8W 5.6K 5% 1R46 0702-1822-02 Resistor 1/8W 8.2K 5% 1R123 Capacitors 06D212246001CAP,Electro 0.22UF/50V 5*11mm 20% 105 2C110 C112 06D212256301CAP,Electro 2.2UF/50V 20% 5*11 105 1C208 06D212266010CAP,Electro 22uF/50V 20% 5*11 105 12 C3 C204 C4 C5 C7 C8 C9 C10 C12 C13 C14 C103 06D214766

46、109CAP,Electro 47uF/50V 20% 5*11 105 2C35 C36 06D214764102CAP,Electro 47uF/25V 20% 5*11 105 2C139 C102 06D211073116CAP,Electro100UF/16V20% 5*11 1053C137 C138 C104 06D212273109CAP,Electro 220uF/16V 20% 5*11 105 2C209 C140 06D21477H100CAP,Electro470UF/80V 20% 16*25mm2C135 C136 06D214775117CAP,Electro

47、470uF/35V 20% 10*17 1052C133 C134 06D214789100CAP,Electro4700UF/63V 20% 35*27mm2C144 C145 06D212274001CAP,Electro 220UF/25V 20% 8*12 105 3C1 C2 C207 06D212285101CAP,Electro 2200UF/35V 16*26MM 20% 1054C122 C123 C125 C124 06D231017000Ceramic Capacitor 100pF/100V 20% 11 C23 C24 C15 C16 C18 C19 C20 C21

48、C22 C56 C17 06D231047000Ceramic Capacitor 0.1uF/100V 20% 28 C101 C1A C1B C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C100 C111 C114 C115 C117 C118 C119 C120 C121 C6 C53 C54 C55 C128 C129 06D232217000Ceramic Capacitor 220pF/100V 20% 1C38 06D234717001Ceramic Capacitor 470PF/100V 20% 1C37 06D232207000Ceramic Capacitor 22pF/100V 20% 2C42 C44 06D235607000Ceramic Capacitor 56PF/100V 20% 2C201 C202 06D236817000Ceramic Capacitor 680pF/100V 20%