Crate_CA120DG_Preamp_(07S562)_Schematics电路图.pdf

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1、2008 LOUD Technologies Inc. All rights re served PWA Preamplifi er PCB SchematicsPAGE 1 CA120DG 1/05/04 2/12/04 2/13/04 - REM - A 0 C B Plot Time: Drawn: REV Sheet INITIAL ISSUE CHGD VALUES R97,R99 & R99 CONTROL ISSUE of21 NONE 7/07/03 Date: Ecr(s)/Ecn(s) R01155 - Appvd byDate 5 4 A A B B C C D D E

2、E Plot Date: Checked: Released: F F - G G 5 4 3 1 2 PWA- PREAMPLIFIER 3 1 2 NOTES: Date Drawing Number: Class Code: Drawing Type: Schematic 11880 Borman Drive, St. Louis, MO 63146 REM ST. LOUIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Chgd ByDESCRIPTION AND 10 MEGOHM DI

3、GITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Drawing Title: First Used On: Drawing Size: Checked By Signatures: Fri Feb 13, 2004 07S562 - 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/8W-5% TOL. AND BE SURE

4、POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AV

5、OID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED +16V -16VP -16VP+16VP LINE_OUT_BUS D49 1N914 75V PIV +16V D48 1N914 75V PIV R54 1.74K 1/4W 1per 220 35V C87 R2 1.74K 1/4W 1per 220 35V C59 C22 10 35V 75V PIV 1N914 D11 +16VP -16VP R6 4.7K 1/8W 5per 75V PIV 1N914 D4 +16VP -16VP -16VP 10.0K 1/4W

6、 1per R53 10K 1/8W 5per R9 75V PIV 1N914 D6 +16VP 10.0K 1/4W 1per R7 C29 220 pF 100V D42 1N914 75V PIV O I C SW7:A TUNER SELECT R12 1K 1/8W 5per D26 1N914 75V PIV C42 10 35V C41 56 pF 200V 6 5 7 IC3:B TLO-74 CW P1 GAIN 1 50K L 9 10 8 IC3:C TLO-74 2.2K 1/8W 5per R34 100 35V C69 R134 220 1/8W 5per R59

7、 2.2K 1/8W 5per R14 2.2K 1/8W 5per C89 .0068 100V C37 10 35V 2 3 1 IC4:A TLO-74 .01 C78 100V 10K 1/8W 5per R165 R137 10 1/4W 5per R136 10 1/4W 5per C88 .015 50V 2.2K 1/8W 5per R163 100K 1/8W 5per R40 .047 C31 100V 6 5 7 IC4:B TLO-74 .22 C34 50V .15 C33 50V 10K 1/8W 5per R162 75V PIV 1N914 D34 1.5K 1

8、/8W 5per R49 .0047 C30 100V 10K 1/8W 5per R42 -16VP +16VP CW 50K L P3 LOW R19 2.7K 1/8W 5per R44 22K 1/8W 5per 10K 1/8W 5per R21 C17 100 pF 200V R17 22K 1/8W 5per 13 12 14 IC5:D TLO-74 1.5K 1/4W 5per R112 +16V 6 5 7 IC5:B TLO-74 C32 56 pF 200V R24 22K 1/8W 5per .047 C19 100V EFF_SEND_BUS MAIN_BUS C2

9、1 10 35V +16V R29 22K 1/8W 5per R62 22K 1/8W 5per R37 1.74K 1/4W 1per 511 1/4W 1per R46 R1 1.74K 1/4W 1per 511 1/4W 1per R4 D12 75V PIV 1N914 D1 75V PIV 1N914 75V PIV 1N914 D9 150 1/4W 5per R41 150 1/4W 5per R10 R33 1K 1/8W 5per R32 10K 1/8W 5per C26 56 pF 200V CW P12 GAIN 1 50K L C9 10 35V C8 56 pF

10、 200V 2.2Vrms TP5 2.2K 1/8W 5per R60 R156 22K 1/8W 5per 7.5K 1/4W 5per R158 R48 2.2K 1/8W 5per R157 22K 1/8W 5per C91 .0068 100V R55 22K 1/8W 5per R35 2.7K 1/8W 5per .047 C70 100V R15 2.2K 1/8W 5per 13 12 14 IC4:D TLO-74 47K 1/8W 5per R39 .047 C72 100V .047 C71 100V 9 10 8 IC4:C TLO-74 .047 C74 100V

11、 .22 C13 50V .1 C57 50V .0033 C27 100V 1.5K 1/8W 5per R20 470K 1/4W 5per R111 .0047 C15 100V 47K 1/8W 5per R22 22K 1/8W 5per R117 R57 10K 1/8W 5per 22K 1/8W 5per R118 .0033 C18 100V 10K 1/8W 5per R27 R149 22K 1/8W 5per CW P7 MID 50K L 22K 1/8W 5per R115 .1 C58 50V R150 1M 1/8W 5per D38 RED Q9 MPS-A1

12、3 R61 22K 1/8W 5per +16VP +16V -16V +16V PARTS IN THIS AREA ARE NOT INSTALLED D10 75V PIV 1N914 C23 10 35V 511 1/4W 1per R30 R153 220 1/8W 5per C2 10 35V D2 75V PIV 1N914 C5 10 35V LOW-Z J3 511 1/4W 1per R3 R152 220 1/8W 5per CW P11 GAIN 2 50K L R31 47K 1/8W 5per 10K 1/8W 5per R51 R47 1K 1/8W 5per 2

13、 3 1 IC2:A OP275GP R52 4.7K 1/8W 5per 75V PIV 1N914 D46 D47 1N914 75V PIV 100 pF C24 200V D43 1N914 75V PIV C25 100 pF 200V R11 47K 1/8W 5per CW P2 GAIN 2 50K L C10 56 pF 200V R8 10K 1/8W 5per D5 75V PIV 1N91475V PIV 1N914 D40 75V PIV 1N914 D41 -16VP 100 pF C3 200V C7 10 35V 6 5 7 IC1:B OP275GP C1 1

14、00 pF 200V +16VP CW 50K L P6 LOW CW 50K L P13 HIGH 75V PIV 1N914 D44 10 35V C76 10 35V C75 D53 1N914 75V PIV C11 10 35V R16 22K 1/8W 5per 10K 1/8W 5per R160 O I C SW8:B OPTIMIZER JWOPT3 O I C SW8:A OPTIMIZER D52 1N914 75V PIV 2 3 1 IC10:A TLO-72 C90 .015 50V 10K 1/8W 5per R36 .047 C28 100V .0022 C35

15、 100V R43 22K 1/8W 5per CW P9:B 100K RA MID SWEEP 75V PIV 1N914 D45 100K 1/8W 5per R18 .047 C14 100V 4.7K 1/8W 5per R23 CW 50K L P4 HIGH 75V PIV 1N914 D35 CW P14 50K L EFF SEND R50 22K 1/8W 5per C39 10 35V R64 22K 1/8W 5per D39 1N914 75V PIV 470K 1/4W 5per R151 1.5K 1/4W 5per R148 LINE_OUT_BUS EFF_S

16、END_BUS CW P5:B 100K RA MID SWEEP CW P5:A 100K RA MID SWEEP 9 10 8 IC5:C TLO-74 MAIN_BUS C20 56 pF 200V D36 1N914 75V PIV C40 10 35V RING_SW TIP_SW SLEEVE TIP RING J2 HIGH-Z C6 10 35V 2.2Vrms TP1 2 3 1 IC1:A OP275GP C36 10 35V 2 3 1 IC3:A TLO-74 D7 75V PIV 1N914 4.4Vrms TP4 75V PIV 1N914 D8 R38 10K

17、1/8W 1per C4 220 pF 100V O I C SW7:B TUNER SELECT 75V PIV 1N914 D3 R13 1K 1/8W 5per 13 12 14 IC3:D TLO-74 R5 10K 1/8W 1per 6 5 7 IC2:B OP275GP D27 1N914 75V PIV 4.4Vrms TP2 6 5 7 IC10:B TLO-72 R164 2.2K 1/8W 5per 1 2 3 J19 Value R161 10K 1/8W 5per R159 33K 1/4W 5per JWOPT2 10K 1/8W 5per R166 2 3 1 I

18、C5:A TLO-74 10K 1/8W 5per R45 C38 100 pF 200V 4.7K 1/8W 5per R56 CW P9:A 100K RA MID SWEEP CW P10 MID 50K L .047 C73 100V R58 22K 1/8W 5per .0022 C16 100V 2.2Vrms TP9 R109 22K 1/8W 5per .15 C12 50V R110 1M 1/8W 5per Q7 MPS-A13 D37 RED R63 22K 1/8W 5per 10K 1/8W 5per R28 R26 10K 1/8W 5per 2.2Vrms TP1

19、0 R25 22K 1/8W 5per 22K 1/8W 5per R116 2.2Vrms TP7 LOW-Z J6 RING_SW TIP_SW SLEEVE TIP RING J1 HIGH-Z CW P8 50K L DSP/EFF SEND PARTS IN THIS AREA ARE NOT INSTALLED 2.2Vrms TP8 PARTS IN THIS AREA ARE NOT INSTALLED 2.2Vrms TP3 2.2Vrms TP6 TEST POINT C0NDITIONS: GAIN1, GAIN2, DSP/EFF SEND, EFFECTS RETUR

20、N, CD LEVEL & LEVEL 10. ALL OTHER CONTROLS 5 EXCEPT DSP LEVEL 0. 1KHZ SINEWAVE INPUT. RadioFans.CN 收音机爱 好者资料库 2008 LOUD Technologies Inc. All rights re served PWA Preamplifi er PCB SchematicsPAGE 2 CA120DG 1/05/04 2/12/04 2/13/04 - REM - A 0 C B Plot Time: Drawn: REV Sheet INITIAL ISSUE CHGD VALUES

21、R97,R99 & R99 CONTROL ISSUE of22 NONE 7/07/03 Date: Ecr(s)/Ecn(s) R01155 - Appvd byDate 5 4 A A B B C C D D E E Plot Date: Checked: Released: F F - G G 5 4 3 1 2 PWA- PREAMPLIFIER 3 1 2 NOTES: Date Drawing Number: Class Code: Drawing Type: Schematic 11880 Borman Drive, St. Louis, MO 63146 REM ST. LO

22、UIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Chgd ByDESCRIPTION AND 10 MEGOHM DIGITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Drawing Title: First Used On: Drawing Size: Checked By Signatures: Fri Feb 13, 2004 07S562 - 3) VOLTAG

23、ES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/8W-5% TOL. AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% T

24、OL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED DSP_B -16V +16V LINE_OUT_BUS MAIN_BUS -16VP+16VP -16V -16V DSP_A/B +16V EFF_SEND_BUS C43 10 35V D31 1N914 75V PIV -16V C67 56 pF 200V

25、 C47 10 35V 33K 1/4W 5per R125 R127 10K 1/8W 5per 0.5Vrms TP20 R73 2.2K 1/8W 5per C52 .1 50V 1 50V C65 1K 1/8W 5per R132 DSP_A/B +16V 3.3K 1/8W 5per R97 G S D Q17 J175 +16V 10K 1/8W 5per R113 S D G J112 Q8 R99 1K 1/8W 5per R98 4.7K 1/8W 5per D23 RED +16V D13 1N914 75V PIV R69 2.7K 1/8W 5per +16V +10

26、V 1.8K 1/8W 5per R71 2.7K 1/8W 5per R70 C55 10 35V C49 .1 50V D17 RED D25 RED 100K 1/8W 5per R104 2.2K 1/8W 5per R168 C95 .01 100V +16V 100K 1/8W 5per R108 R107 22K 1/8W 5per C68 56 pF 200V 6 5 7 IC7:B NE5532 R101 47K 1/8W 5perC94 .01 100V 2 3 1 IC8:A TLO-74 R129 47K 1/8W 5per R171 2.2K 1/8W 5per .0

27、01 C83 100V R143 3.3K 1/8W 5per 22K 1/8W 5per R144 R135 100 1/8W 5per R90 47K 1/8W 5per C84 100 35V C86 10 35V S D G Q6 J112 C50 .047 100V 33K 1/4W 5per R88 +10V G S D Q13 J175 D19 RED R83 47K 1/8W 5per MAIN_BUS +10V +16V 1K 1/8W 5per R85 +16V 2 1 J22 Value 2.2K 1/8W 5per R123 33K 1/4W 5per R124 C48

28、 56 pF 200V C44 56 pF 200V R133 47K 1/8W 5per 4.7K 1/8W 5per R131 R72 680 1/8W 5per R100 1K 1/8W 5per D14 1N914 75V PIV 100K 1/8W 5per R67 R78 470 1/8W 5per 1.5K 1/4W 5per R75 2.2K 1/8W 5per R77 Q1 MPS-A13 2.2K 1/8W 5per R76 R81 47K 1/8W 5per Q16 MPS-A13 +16V 4.7K 1/8W 5per R79 1K 1/8W 5per R80 +16V

29、 CW P18 50K L EFF RETURN C54 100 pF 200V R130 47K 1/8W 5per 6 5 7 IC8:B TLO-74 0.5Vrms TP13 33K 1/4W 5per R95 D29 1N914 75V PIV D18 1N914 75V PIV 1K 1/8W 5per R91 D21 RED 1K 1/8W 5per R114 75V PIV 1N914 D51 D33 1N754ARL 6.8V 0.5Vrms TP14 MPS-A55 Q3 C77 100 pF 200V 1K 1/8W 5per R89 4.7K 1/8W 5per R86

30、 1 2 3 4 5 6 7 8 Value J21 REVERB_SWITCH_LINE MAIN_BUS DO NOT INSTALL LINE_OUT_BUS MAIN_BUS DSP_B REVERB_SWITCH_LINE EFF_RETURN_BUS DSP_A MAIN_OUT DO NOT INSTALL MPS-A56 Q11 D30 1N914 75V PIV R74 47K 1/8W 5per 9 10 8 IC6:C TLO-74 CW P15 50K L MASTER LEVEL R65 47K 1/8W 5per 2 3 1 IC6:A TLO-74 75V PIV

31、 1N914 D16 O I C SW2:A FEEDBACK ON R126 33K 1/4W 5per S D G Q12 J112 DO NOT INSTALL CW P17 50K L DSP RETURN C53 2.2 50V R96 10K 1/8W 5per D22 RED 0.3Vrms TP16 C46 10 35V D15 1N746ARL 3.3V 15K 1/8W 5per R106 R66 47K 1/8W 5per 10K 1/8W 5per R105 13 12 14 IC6:D TLO-74 R102 47K 1/8W 5per O I C SW1:B FIL

32、TER 2R169 1M 1/8W 5per O I C SW1:A FILTER 2 EFF_RETURN_BUS C56 10 35V D24 RED 1M 1/8W 5per R103 2.2K 1/8W 5per R170 C93 22 16V G DS Q15 J175 C51 .047 100V 2.2K 1/4W 5per R94 +16V -16V 2.2K 1/4W 5per R87 1K 1/8W 5per R84 R172 22K 1/8W 5per CW P20 50K L CD LEVEL 6 5 7 IC6:B TLO-74 R138 22K 1/8W 5per R

33、155 22K 1/8W 5per 75V PIV 1N914 D32 47K 1/8W 5per R146 R142 3.3K 1/8W 5per C85 .001 100V 9 10 8 IC8:C TLO-74 R147 15K 1/8W 5per JWOPT1 CW P19 50K L TWEETER LEVEL 1 2 3 4 J18 Value S D G Q4 J112 R128 47K 1/8W 5per 13 12 14 IC8:D TLO-74 LINE_OUT_BUS TP11 0.5Vrms O I C SW2:B FEEDBACK ON 2 3 1 IC7:A NE5

34、532 C45 56 pF 200V OC1 VTL-5C7 R68 2.7K 1/8W 5per 0.5Vrms TP12 G S D Q2 J175 1 2 3 4 5 6 J14 Value DSP_A C66 10 35V 1 2 3 4 5 6 7 8 J13 Value R154 10K 1/8W 5per 2 3 4 CMN 1 4-BIT ENCODER DSP ENCODER SW5 C92 .01 100V 1M 1/8W 5per R167 G S D Q14 J175 4.7K 1/8W 5per R93 1K 1/8W 5per R92 D20 1N914 75V P

35、IV MPS-A55 Q5 D28 1N914 75V PIV D50 75V PIV 1N914 1 2 3 4 5 6 J4 Value +16V R139 22K 1/8W 5per TP19 200mVrms 2N5087 Q10 R145 100K 1/8W 5per C82 .0022 100V 200mVrms TP18 1 2 3 4 5 6 7 8 9 10 J12 Value J23 CD INPUT O I C SW3:A FILTER 1 O I C SW3:B FILTER 1 LINE_OUT_BUS 400mVrms TP17 0.5Vrms TP15 RadioFans.CN 收音机爱 好者资料库