Alto-XP234-xo-sm 电路图 维修手册.pdf

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1、Service Manual Version: 1.1 Model: X-P234 (2,3-WAY STEREO 4-WAY MONO ) ACTIVE CROSSOVER RadioFans.CN 收音机爱 好者资料库 CONTENTS 1. Specification 2. Block Diagram 3. Schematic Diagram 4. Printed Circuit Board 5. Wiring Diagram 6. Test Procedure 7. Electrical Parts List 8. Exploded Views & Mechanical Parts L

2、ist 9. Notes RadioFans.CN 收音机爱 好者资料库 Mode:Mono 93dBu 94dBu 94dBu 88dBu Limiter On 0.5 % 93dBu 94dBu 95dBu 95dBu 95dBu 50K Ohms, unbalanced 25K Ohms +22dBu typical, balanced or unbalanced 40dB, typically 55 dB at 1 KHz XLR Electronically servo-balanced, RF filtered Balanced 60 Ohms, unbalanced 30 Ohm

3、s +20dBu balanced or unbalanced 20Hz to 20KHz, +0/-0.5dB 90KHz, +0/-3dB Ref: +4dBu, 20Hz to20KHz,unweighted Stereo Mode: 93dBu 95dBu 90dBu 106dB,unweighted Limiter Off 0.04% High to Low: High to Mid: Mid to Low: High to High-Mid: High-Mid to Low-Mid: Low-Mid to Low: Linkwitz-Riley, 24dB/Octave, stat

4、e-variable 1 44Hz to 930Hz 44Hz to 930Hz 440Hz to 9.3KHz 1 44Hz to 930Hz 440Hz to 9.3KHz 440Hz to 9.3KHz Activates 25 Hz Butterworth, 12 dB/Octave high-pass filter Mutes the individual output Inverts the phase at the individual output Corrects CD horn frequency response above 3.5KHz Activates the li

5、miter function for all outputs Mutiplies crossover frequency range by 10 Selects stereo /mono and 2/3/4-way operation Selects normal stereo or mono-summed low frequency operation ON=Channel1+6dB Louder Channal2: the same as before, 1. SPECIFICATION (X-P234) RadioFans.CN 收音机爱 好者资料库 CONTROLS Input Xov

6、er Frequency Delay Gain Threshold Controls the input gain(+/-12dB) Controls the crossover frequency Controls the delay at the low output(0 to 2 msec.) Controls the output gain(+/-6dB) Controls the threshold of the limiter (-6dB to OFF) POWER SUPPLY 3-pole IEC, grounded serve controlled, stabilized P

7、ower Rating 17W Fuse Connector type Type PHYSICAL Dimensions483(W)194.5(D)44(H)mm(197.71.7) Net Weight3.3Kg(7.27lb) Mains supply95-120V/210-240V,60-50Hz 210-240V: T250mAL 250VAC 95-120V: 500mA 250VAC 12345678 A B C D 87654321 D C B A 2 1 3 A -CHANNEL SIGNAL INPUT LOW CUTGAIN XOVER FREQ. x1 OR x10 MI

8、D GAIN DELAY HIGH GAIN LOW GAIN LIMITER ON / OFF LIMITER LIMITER PHASE PHASE PHASECD HORN MUTE MUTE MUTE 2 1 3 A-CHANNEL LOW OUTPUT 2 1 3 A-CHANNEL MID OUTPUT 2 1 3 A-CHANNEL HIGH OUTPUT 2 1 3 B -CHANNEL SIGNAL INPUT LOW CUTGAIN XOVER FREQ. x1 OR x10 MID GAIN DELAY HIGH GAIN LOW GAIN LIMITER LIMITER

9、 LIMITER PHASE PHASE PHASECD HORN MUTE MUTE MUTE 2 1 3 B-CHANNEL LOW OUTPUT 2 1 3 B-CHANNEL MID OUTPUT 2 1 3 B-CHANNEL HIGH OUTPUT OFFON OFF ON 2-WAY STEREO- - - - 3-WAY STEREO 4-WAY MONO NOT VALID - - - - OFF ONOFF ON MODE (2-WAY) LOW / HIGH STEREO MODES FREQUENCIES 44 Hz TO 930 Hz x1x10 (3-WAY) LO

10、W / MID MID / HIGH 440 Hz TO 9.3 KHz 440 Hz TO 9.3 KHz 440 Hz TO 9.3 KHz 44 Hz TO 930 Hz MONO MODES FREQUENCIES LOW-MID / MID-HIGH (4-WAY) LOW / LOW-MID MID-HIGH / HIGH 44 Hz TO 930 Hz 440 Hz TO 9.3 KHz 440 Hz TO 9.3 KHz 440 Hz TO 9.3 KHz x1x10 SCX-P234 BLOCK DIGRAM P234 BLOCK DIGRAM.Sch Titel Size

11、File: Date: Drawn By: Sheet RevisionModel No: 2-Nov-2002 TASY J.S. 11of SCX-P234V1.0 A4 2.Block Diagram 12345678 A B C D 87654321 D C B A TO CN2-22 C23 47UF/25V VR5 10KB R24 3K22 SW6 INV R50 15K R51 4K99 10 9 8 IC5C TL074 R48 10K R46 30K1 C56 20P R52 2K21 R47 2K21 R108 180R C84 15N 5 6 7 IC10B TL074

12、 C85 4N7 R109 2K67 C24 47uF 12 13 14 IC5D TL074 R45 2K21 C55 100P C18 47uF R49 2K21 SW8 CD HORN R107 47K5 R98 10K Q9 2N7002 R100 10M C19 4.7uF R97 100K R99 5K11 D5 BAS16 3 2 1 IC9A 2068 R96 10K C81 100P C20 47uF R106 47K5 SW7 MUTE D6 BAS16 TO CN2-16 5 6 7 IC9B 2068 R103 560K +15V +15V -15V -15V R102

13、 560K R105 10K Q10 BR LED11 RD R17 1K5 C22 4.7uF R104 6K34 3 2 1 IC10A TL074 HI SW16 LIMITER VR11 10KB R182 18K2 R181 2K21 TO CN2-10 TO CN1-2 12 13 14 IC10D TL074 R123 10K R120 10K R118 10K R119 10K C5 47uF VR3 10KB R71 3K32 LO SW2 INV R39 15K R37 4K99 3 2 1 IC5A TL074 R41 10K R43 30K1 C51 20P R60 1

14、0K 3 2 1 IC6A 2068 5 6 7 IC6B 2068 C58 5N6 R59 37K4 R55 511R VR2A 100KB VR2B 100KB R57 511R C57 5N6 C6 47uF R56 10K R58 27K4 R64 10K C21 220uF R101 68R Q5 2N7002 R21 10M C7 22uF R63 100K R65 5K11 D1 BAS16 3 2 1 IC7A 2068 R62 10K C61 100P C8 47uF R85 47K5 SW3 MUTE D2 BAS16 5 6 7 IC7B 2068 R76 560K +1

15、5V -15V R75 560K R84 10K Q6 BR LED7 RD R4 1K5 C12 4.7uF R80 6K34 C10 220uF R74 68R TO CN2-20 TO CN1-1 C4 47UF/25V VR4 10KB R23 3K22 SW4 INV R40 15K R38 4K99 5 6 7 IC5B TL074 R42 10K R44 30K1 C52 20P C13 47uF R89 10K Q9 2N7002 R22 10M C14 10uF R87 100K R88 5K11 D3 BAS16 3 2 1 IC8A 2068 R86 10K C80 10

16、0P C15 47uF R95 47K5 SW5 MUTE D4 BAS16 TO CN2-18 5 6 7 IC8B 2068 R90 560K +15V -15V R92 560K R94 10K Q8 BR LED9 RD R6 1K5 C17 4.7uF R93 6K34 MID C16 220uF R91 68R TO CN2-23 TO CN1-19 LOW CUT C3 47uF VR1 50KB R27 15K 3 2 1 IC4A 2068 R29 47P R26 15k R28 20K R30 20K SW1 LOW CUT C1 47uF C2 47uF 5 6 7 IC

17、4B 2068 R33 60K4 C49 150N R34 30K1 C48 150N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN2 24PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN1 20PIN LIMITER CD HORN1 CD HORN2 P234FP-1.SCH Titel Size File: Date: Drawn By: Sheet RevisionModel No: 7-Jun-2002 TASY J.S. P234F

18、P-1(CH1) 31of X-P234V1.0A3 3. Schematic Diagram 12345678 A B C D 87654321 D C B A TO CN2-12 C29 47UF/25V VR10 10KB R154 3K22 SW14 INV R137 15K R139 4K99 10 9 8 IC12C TL074 R135 10K R133 30K1 C97 20P R138 2K21 R134 2K21 R117 180R C88 15N C86 4N7 R114 2K67 C25 47uF 12 13 14 IC12D TL074 R132 2K21 C96 1

19、00P C42 47uF R136 2K21 R110 47K5 R173 10K Q15 2N7002 R174 10M C43 4.7uF R171 100K R172 5K11 D11 BAS16 3 2 1 IC16A 2068 R170 10K C104 100P C44 47uF R180 47K5 SW15 MUTE D12 BAS16 TO CN2-4 5 6 7 IC16B 2068 R177 560K +15V -15V R176 560K R179 10K Q16 BR LED22 RD R20 1K5 C46 4.7uF R178 6K34 HI TO CN2-9 TO

20、 CN3-2 C31 47uF VR8 10KB R25 3K32 LO SW11 INV R126 15K R124 4K99 3 2 1 IC12A TL074 R128 10K R130 30K1 C92 20P R145 10K 3 2 1 IC13A 2068 5 6 7 IC13B 2068 C99 5N6 R144 37K4 R140 511R VR7A 100KB VR7B 100KB R142 511R C98 5N6 C32 47uF R141 10K R143 27K4 R148 10K C45 220uF R175 68R Q11 2N7002 R150 10M C33

21、 22uF R147 100K R149 5K11 D7 BAS16 3 2 1 IC14A 2068 R146 10K C100 100P C34 47uF R157 47K5 SW10 MUTE D8 BAS16 5 6 7 IC14B 2068 R151 560K +15V -15V R153 560K R156 10K Q12 BR LED8 RD R18 1K5 C36 4.7uF R155 6K34 C35 220uF R152 68R TO CN2-8 TO CN3-20 C30 47UF/25V VR9 10KB R162 3K22 SW12 INV R127 15K R125

22、 4K99 5 6 7 IC12B TL074 R129 10K R131 30K1 C93 20P C37 47uF R160 10K Q13 2N7002 R163 10M C38 10uF R159 100K R161 5K11 D9 BAS16 3 2 1 IC15A 2068 R158 10K C103 100P C39 47uF R169 47K5 SW13 MUTE D10 BAS16 TO CN2-6 5 6 7 IC15B 2068 R164 560K +15V -15V R166 560K R168 10K Q14 BR LED20 RD R19 1K5 C41 4.7uF

23、 R167 6K34 MID C40 220uF R165 68R TO CN2-14 TO CN3-1 LOW CUT C28 47uF VR6 50KB R112 15K 3 2 1 IC11A 2068 R115 47P R113 15k R111 20K R116 20K SW9 LOW CUT C26 47uF C27 47uF 5 6 7 IC11B 2068 R121 60K4 C191 150N R122 30K1 C89 150N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN2 24PIN

24、1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN3 20PIN LIMITER 10 9 8 IC?C TL074 CD HORN1 CD HORN2 P234FP-2.SCH Titel Size File: Date: Drawn By: Sheet RevisionModel No: 7-Jun-2002 TASY J.S. P234FP-2(CH2) 32of X-P234V1.0A3 1234 A B C D 4321 D C B A TO CN2-13 R36 39K2 TO CN2-15 -15V+15V +15V -15

25、V R2 470R R35 15K TO CN2-1 TO CN2-2 TO CN2-11 TO CN2-21 TO CN2-24 TO CN2-19 TO CN2-17 TO CN2-5 TO CN2-3 Q2 HR LED1 GN LED3 GN LED5 GN LED6 GN LED21 GN LED2 YE LED13 YE R53 39K2 R5 470R R54 15K Q3 HR LED4 GN LED8 GN LED15 GN LED19 GN TO CN2-7 +15V R66 39K2 R3 470R R61 15K Q4 HR LED12 GN LED14 GN LED1

26、6 GN LED17 GN LED10 GN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN2 24PIN 411 IC12E TL074 411 IC10E TL074 411 IC5E TL074 84 IC4C 2068 84 IC6C 2068 84 IC7C 2068 84 IC8C 2068 84 IC9C 2068 84 IC11C 2068 84 IC13C 2068 84 IC14C 2068 84 IC15C 2068 C50 104P C47 104P C53 104P C54 104P

27、C71 104P C73 104P C82 104P C83 104P -15V +15V -15V +15V C87 104P C90 104P C94 104P C95 104P C101 104P C102 104P 84 IC16C 2068 VR12A C50K VR12B C50K VR12C C50K VR12D C50K VR13A C50K VR13B C50K VR13C C50K VR13D C50K VR14A C50K VR14B C50K VR14C C50K VR14D C50K VR15A C50K VR15B C50K VR15C C50K VR15D C50

28、K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN1 20PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN3 20PIN TO CN3-3 TO CN3-4 TO CN3-5 TO CN3-6 TO CN3-7 TO CN3-8 TO CN3-9 TO CN3-10 TO CN3-11 TO CN3-12 TO CN3-13 TO CN3-14 TO CN3-17 TO CN3-18 TO CN3-15 TO CN3-16 TO CN1-10 TO CN1-15 TO

29、CN1-9 TO CN1-8 TO CN1-7 TO CN1-4 TO CN1-3 TO CN1-6 TO CN1-5 TO CN1-18 TO CN1-17 TO CN1-16 TO CN1-12 TO CN1-11 TO CN1-14 TO CN1-13 P234FP-3.SCH Titel Size File: Date: Drawn By: Sheet RevisionModel No: 7-Jun-2002 TASY J.S. P234FP-3 33of X-P234V1.0A3 12345678 A B C D 87654321 D C B A 1 2 3 4 X3 CHANNEL

30、1 R3 13K3 R34 13K3 C98 47P R43 13K3 - 6 + 5 7 IC9B 2068 R46 26K1 C29 47P R44 13K3 C97 47P R45 26K1 C28 47P 1 - 2 + 3 IC9A 2068 1 2 3 4 X7 CHANNEL2 R52 13K3 R53 13K3C32 47P R50 13K3 R49 26K1 C31 47P R51 13K3 C33 47P R48 26K1 C30 47P SW2 LF SUM SW3 MODE SW4 MODE -15V +15V -15V -15V -15V -15V -15V R89

31、2K67 R90 10K 1 - 2 + 3 IC15A 2068 - 6 + 5 7 IC15B 2068 R915K76 R88 60R4 C43 47P R85 3K16 R86 3K24 R87 4K53 R80 10K C14 47UF/25V TO CN2-21 C46 470P R92 3K16 TO X10-3 R81 6K04 R82 60R4 R835K76 TO X10-2 C45 470P 1 2 3 4 X10 HIGH OUTPUT R75 2K67 R77 10K 1 - 2 + 3 IC14A 2068 - 6 + 5 7 IC14B 2068 R78 5K76

32、 R76 60R4 C39 47P R71 3K16 R73 3K24 R74 4K53 R67 10K C13 47UF/25V TO CN2-19 C44 470P R79 3K16 TO X9-3 R68 6K04 R69 60R4 R72 4K53 TO X9-2 C41 470P 1 2 3 4 X9 MID OUTPUT R62 2K67 R64 10K 1 - 2 + 3 IC13A 2068 - 6 + 5 7 IC13B 2068 R65 5K76 R63 60R4 C36 47P R58 3K16 R60 3K24 R614K53 R54 10K C12 47UF/25V

33、TO CN2-17 C38 470P R66 3K16 TO X8-3 R556K04 R56 60R4 R59 4K53 TO X8-2 C37 470P 1 2 3 4 X8 LO OUTPUT R38 2K67 R42 10K 1 - 2 + 3 IC12A 2068 - 6 + 5 7 IC12B 2068 R415K76 R39 60R4 C25 47P R33 3K16 R36 3K24 R37 4K53 R30 10K C11 47UF/25V TO CN2-9 C46 470P R42 3K16 TO X6-3 R31 6K04 R32 60R4 R355K76 TO X6-2

34、 C45 470P 1 2 3 4 X6 HIGH OUTPUT R25 2K67 R27 10K 1 - 2 + 3 IC11A 2068 - 6 + 5 7 IC11B 2068 R28 5K76 R26 60R4 C21 47P R21 3K16 R23 3K24 R24 4K53 R17 10K C10 47UF/25V TO CN2-7 C22 470P R29 3K16 TO X5-3 R18 6K04 R19 60R4 R22 4K53 TO X5-2 C20 470P 1 2 3 4 X5 MID OUTPUT R12 2K67 R14 10K 1 - 2 + 3 IC10A

35、2068 - 6 + 5 7 IC10B 2068 R15 5K76 R13 60R4 C18 47P R8 3K16 R10 3K24 R114K53 R4 10K C9 47UF/25V C19 470P R16 3K16 TO X4-3 R56K04 R6 60R4 R94K53 TO X4-2 C99 470P 1 2 3 4 X4 LOW OUTPUT TO CN2-5 TO CN2-2 TO CN2-11 CN2 1 3 5 7 9 11 13 15 17 19 21 23 CN2 2 4 6 8 10 12 14 16 18 20 22 24 TO CN3-6 TO CN3-14

36、 TO CN1-18TO C7 TO CN1-10 84 IC9C 2068 84 IC10C 2068 84 IC11C 2068 84 IC12C 2068 84 IC13C 2068 84 IC14C 2068 +15V -15V C47 104P C17 104P C23 104P C24 104P C34 104P C35 104P 84 IC15C 2068 C40 104P C42 104P CHANNEL 2CHANNEL 1 P234PU-1.SCH Titel Size File: Date: Drawn By: Sheet RevisionModel No: 7-Jun-

37、2002 TASY J.S. P234PU-1 21of X-P234V1.0A3 12345678 A B C D 87654321 D C B A R108 15K R109 15K - 2 + 3 1 IC1A TL074 - 6 + 5 7 IC1B TL074 - 9 + 10 8 IC1C TL074 14 - 13 + 12 IC1D TL074 - 2 + 3 1 IC2A - 6 + 5 7 IC2B - 9 + 10 8 IC2C TL074 14 - 13 + 12 IC2D TL074 1 - 2 + 3 IC5A 2068 - 6 + 5 7 IC5B 2068 C8

38、5 20P R111 13K3 C6 47UF/25V TO CN1-18 R2 10K R84 3K24 R1 10K TO CN1-19 R96 2K49 R103 10K p 1 2 3 SW1A 4 5 6 p SW1B p 7 8 9 SW1C p 10 11 12 SW1D R102 3K57 TO CN1-15 TO CN1-16 R97 3K57 R112 10K C86 20P TO CN1-10 R105 3K57 C86 20P R115 2K49 C90 6N8 C64 47N C63 15N TO CN1-11 C61 15N C62 47N R116 2K49 TO

39、 CN1-2 C78 6N8 TO CN1-13 C6515N C66 47N C77 6N8 R121 2K49 TO CN1-17 R47 2K49 TO CN1-12 C89 6N8 C67 15N C68 47N C92 6N8 TO CN1-8 R122 2K49 TO CN1-4 R123 2K49 TO CN1-6C806N8 TO CN1-9 R7 2K49 TO CN1-1 R118 2K49 TO CN1-5 C79 6N8 R117 2K49 TO CN1-3 C916N8 TO CN1-7 R112 10K 1 2 3 4 5 6 7 8 9 10 11 12 13 1

40、4 15 16 17 18 19 20 CN1 20PIN TO CN1-14 R110 15K - 2 + 3 1 IC3A TL074 - 6 + 5 7 IC3B TL074 - 9 + 10 8 IC3C TL074 14 - 13 + 12 IC3D TL074 - 2 + 3 1 IC4A TL074 - 6 + 5 7 IC4B TL074 - 9 + 10 8 IC4C TL074 14 - 13 + 12 IC4D TL074 1 - 2 + 3 IC6A 2068 - 6 + 5 7 IC6B 2068 C74 47N C73 15N C81 6N8 R99 2K49 p

41、1 2 3 SW5A * 4 5 6 p SW5B p 7 8 9 SW5C * p 10 11 12 SW5D * C87 20P R113 13K3 TO CN3-6 R70 10K C88 20P R114 10K C69 15N C70 47N C82 6N8 R10710K C71 15N C72 47N TO CN3-3 C75 15N C76 47N C93 6N8 R124 2K49 R126 2K49 TO CN3-8 R101 3K57 R100 2K49 R20 3K57 C95 6N8 C96 6N8 R128 2K49 C94 6N8 TO CN3-16 TO CN3

42、-12 C84 6N8 R127 2K49 TO CN3-18 TO CN3-13 C83 6N8 R95 2K49 TO CN3-17 TO CN3-20 R94 10K R93 10K TO CN3-11 R120 2K49 TO CN3-15 R98 3K57 R57 10K R106 3K57 TO CN3-1 TO CN3-4 TO CN3-5 R1252K49 TO CN3-10 R119 2K49 C5 1000U 35V C8 1000U 35V C15 47U 25V C16 47U 25V TR1 7815 TR2 7915 +15V -15V D3 D4 D1 D2 1

43、2 3 CN1 3P3.96 1 2 CN2 CN2P-2.5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN3 20PIN R130 1K2 IN4002 IN4002 IN4002 IN4002 R104 10K TO CN3-2 TO CN3-9 TO CN3-7 C7 47uF/25V TO CN3-6 TO CN3-14 TO CN1-18 TO C7 TO CN1-10 TO CN3-14 411 IC1E TL074 411 IC2E TL074 411 IC3E TL074 411 IC4E TL074 84 IC5C

44、 2068 84 IC6C 2068 C1 104P C2 104P C3 104P C4 104P +15V -15V P234PU-2.SCH Titel Size File: Date: Drawn By: Sheet RevisionModel No: 7-Jun-2002 TASY J.S. P234PU-2 22of X-P234V1.0A3 P234FP PCB LAYOUT PCB : P234FP Top Layer PCB : P234FP Top Solder Mask PCB : P234FP Bottom Layer PCB : P234FP Bottom Solde

45、r Mask PCB : P234FP Bottom Overlay PCB : P234FP Top Overlay PCB : P234FP Drill Drawing Plots Hole Size Hole Count 24mil (0.6mm) 353 31mil (0.8mm) 248 35mil (0.9mm) 64 39mil (1.0mm) 97 87mil (2.2mm) 30 126mil (3.2mm) 6 Totals 798 P234PU PCB LAYOUT PCB : P234PU Top Layer PCB : P234PU Top Solder Mask P

46、CB : P234PU Bottom Layer PCB : P234PU Bottom Solder Mask PCB : P234PU Bottom Overlay PCB : P234PU Top Overlay PCB : P234PU Drill Drawing Plots Hole Size Hole Count 24mil (0.6mm) 303 31mil (0.8mm) 80 35mil (0.9mm) 64 39mil (1.0mm) 16 47mil (1.2mm) 6 55mil (1.4mm) 6 59mil (1.5mm) 1 63mil (1.6mm) 21 110mil (2.8mm) 2 Totals 499 1234 A B C D 4321 D C B A PT-CLE40 LED 5. Wiring Diagram 8. Exploded Views