Art_pro_vla_schem 电路图 维修原理图.pdf

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1、12345678 A B C D E F 87654321 F E D C B A 1st Use:Dwg # Size Drawn By Print Date Rev. E C:SERVERDPRODUCTS212212-1-1.SCH 11-Oct-2002 212-4001-101 Pro 2-Ch Tube/Vactrol Levelar - Main PCB D. Pearce Sheet #of C 12 11:04:06 215 Tremont Street Rochester, NY 14608 Phone:Fax:(716) 436-2720(716) 436-3942 C

2、Applied Research & Technology, Inc. A-B 133% 212 - Pro VLA LADDER_1 Power Supply 212-2-1.sch +15 -15 GND +15 -15 1. Unless otherwise marked: Resistors 1/4W 5% C.F. *3 sign. figs =1/4W 1% M.F. ex. 10K=5% 10.0K=1% Capacitors in uF Diodes are 1N4148 / 1N914 2. Shaded Ports are local, others connect to

3、Power Supply (sheet #2) NOTES On This Page Off-Page conn. INPUT 1-XLR INPUT 1 Y R R R R R R R R R LED2 5 4 3 2 1 J4 C30 10uF 50V 1 2 3 4 9 M1 V1A 12AT7 6 7 8 5 M2 V1B 2 3 1 SW3A 5 6 4 SW3B JW1 JUMPER-10 x4 R17 100 5 6 7 A5B TL072 3 2 1 84 A5A TL072 3 21 G J3 3 21 G J2 5 4 3 2 1 J1 VR2 100K Lin VR3 1

4、0K Lin RATIO-1 C33 330pF m 2 3 1 SW4A R55 10.0K R64 220K R62 10.0K C36 100uF 63V C34 47uF 25V RELEASE-1 R72 20.0K R74 100K C43 10uF 50V C17 10uF 50V R38 300 R50 300 R49 300 C44 .1 m -15-A +15-A R80 1M R78 5.1M R15 4.99K C23 47uF 25V C21 47uF 25V +15 -15 OUTPUT 1-BAL OUTPUT 1-TRS/UNBAL 3 2 1 84 A2A N

5、E5532 5 6 7 A2B NE5532 OUTPUT-1 R16 10.0K R20 10.0K R21 10.0K R23 10.0K 1 2 3 4 5 6 7 8 9 10 JP2 +45V 5 6 4 SW4B 7 8 9 SW4C 10 11 12 SW4D LED1 Red-90 R22 1.5K-15 R65 4.99K Q5 MPSA29 TUBE_OUT_1 WIPER_1 Channel 1 BYPASS-1 Active Byp. P5 P4 D1 D3 R4 10.0K R2 10.0K R3 20.0K C21uF 50V R1 10.0K R5 62K R6

6、4.99K R63 10.0K R67 10.0K C39 100pF m METER OUT-1 + - -OUT-1 +OUT-1 -15 1 2 3 4 5 6 7 8 9 10 PL1 C31 47uF 25V +15-A+15 -15-A-15 Channel 1 C38 10uF 50V C35 10uF 50V +15-A -15-A GND-PWR REAR PANEL Break-Away 6mA +15V V1-Filament R59 10.0K R60 10.0K R81 10.0K R48 300 INPUT 2-XLR INPUT 2 5 4 3 2 1 J8 5

7、6 7 A7B TL072 3 2 1 84 A7A TL072 3 21 G J7 3 21 G J6 5 4 3 2 1 J5R92 300 R102 300 R101 300 -15-B +15-B OUTPUT 2-XLR OUTPUT 2-TRS/UNBAL R122 10.0K R128 10.0K C61 100pF m Channel 2 C58 10uF 50V C56 10uF 50V +15-B -15-B R118 10.0K R119 10.0K R139 10.0K R93 300 TRS/UNBAL TRS 1 2 3 4 5 6 7 8 9 10 JP1 2 1

8、 4 3VCT1 VTL5C2 R18 100 CW VR1A 10KD 15C CW VR1B THRESHOLD-1 1 2 3 4 5 6 7 8 9 10 PL2 Ch1 POTS PCB C32 47uF 25V 5 4 2 312 + - U4A 7 6 1 U4B 9 8 14 U4C 11 10 13 U4D 5 4 2 312 + - U3A 7 6 1 U3B 9 8 14 U3C 11 10 13 U3D 2 3 1 SW5A 5 6 4 SW5B 7 8 9 SW5C 10 11 12 SW5D LED4 Red-90 R110 1.5K-15 LINK Stereo

9、Link JW2 JUMPER-10 x4 1 2 3 4 5 6 7 8 9 10 JP4 +15-B -15-B +INPUT_1 -INPUT_1 -OUTPUT_1 +OUTPUT_1 2 3 1SW2A 5 6 4SW2B ATTACK-1 2 3 1 SW1A 5 6 4SW1B METER-1 Input Output Fast Fast Slow Slow THR_DRIVE_2 THR_WIP_2A C63 10uF 50V C41 10uF 50V TUBE_OUT_1 WIPER_1 -OUT-1 +OUT-1 CH1_BUFF 5 4 2 312 + - U5A 7 6

10、 1 U5B 9 8 14 U5C LM339AN 11 10 13 U5D R31 2.2K R34 220K 3 2 1 84 A3A NE5532 5 6 7 A3B NE5532 -15 +15 1 2 3 411 + - A4A TL074 5 6 7 A4B TL074 9 10 8 A4C TL074 12 13 14 A4D TL074 C29 10uF 50V C28 10uF 50V R44 2.2K -15 D23 1N5235B D22 D21 D20 R45 12K +15 -15 R33 10.0K R36 10.0K R77 10.0K C37 100pF m R

11、51 1K R40 1M D12 D13 1N5235B R14 220K R11 39K Q4 2N4403 R54 300 LADDER_1 R52 100K D24 Q2 2N4403 -15 R24 4.99K D10 CV_LINK_1 CV_LINK_1 R56 20.0K R8 20.0K R10 2.2K C12 2.2uF 50V R12 20.0K C13 22uF 35V R19 1M 5 6 7 A1B TL072 3 2 1 84 A1A TL072 -15 +15 THR_WIP_2A CV_LINK_2 DET_LINK_1 DET_LINK_2 DET_LINK

12、_1 THR_WIP_2 THR_OUT C54 10uF 50V 1 2 3 4 9 M1 V2A 12AT7 6 7 8 5 M2 V2B 2 3 1 SW8A 5 6 4SW8B R117 100 VR6 100K Lin VR7 10K Lin RATIO-2 C45 330pF m 2 3 1 SW9A R90 10.0K R96 220K R98 10.0K C50 100uF 63V C47 47uF 25V RELEASE-2 R95 20.0K R97 100K C52 10uF 50V C64 10uF 50V R131 4.99K C65 47uF 25V C67 47u

13、F 25V +15 -15 3 2 1 84 A10A NE5532 5 6 7 A10B NE5532 OUTPUT-2 R136 10.0K R140 10.0K R142 10.0K R132 10.0K +45V 5 6 4 SW9B 7 8 9 SW9C 10 11 12 SW9D LED5 Red-90 R113 1.5K-15 R99 4.99K Q7 MPSA29 TUBE_OUT_2 WIPER_2 Channel 2 BYPASS-2 Active Byp. P11 P10 D26 D25 R106 10.0K R107 10.0K R103 20.0K C551uF 50

14、V R104 10.0K R115 62K R105 4.99K METER OUT-2 + - -OUT-2 +OUT-2 -15 1 2 3 4 5 6 7 8 9 10 PL3 +15 -15 6mA +15V V2-Filament 1 2 3 4 5 6 7 8 9 10 JP3 2 1 4 3VCT2 VTL5C2 THRESHOLD-2 1 2 3 4 5 6 7 8 9 10 PL4 Ch2 POTS PCB +INPUT_2 -INPUT_2 -OUTPUT_2 +OUTPUT_2 2 3 1SW7A 5 6 4SW7B ATTACK-2 2 3 1 SW6A 5 6 4SW

15、6B METER-2 Input Output Fast Fast Slow Slow TUBE_OUT_2 WIPER_2 -OUT-2 +OUT-2 CH2_BUFF R123 220K 3 2 1 84 A8A NE5532 5 6 7 A8B NE5532 -15 +15 1 2 3 411 + - A9A TL074 5 6 7 A9B TL074 9 10 8 A9C TL074 12 13 14 A9D TL074 C53 10uF 50V C59 10uF 50V R109 2.2K -15 D30 1N5235B D27D28 D32 R112 12K +15 -15 R11

16、6 10.0K R114 10.0K R141 1K R94 1M D34 D29 1N5235B R129 220K R130 39K Q9 2N4403 R125 300 R127 100K D33 Q8 2N4403 -15 R108 4.99K D31 CV_LINK_2 R88 20.0K R137 20.0K R121 2.2K C60 2.2uF 50V R120 20.0K C62 22uF 35V R126 1M 3 2 1 84 A6A TL072 5 6 7 A6B TL072 -15 +15 DET_LINK_2 VR5 10K 15C C66 .1 m R138 1M

17、 R135 5.1M R134 10.0K C57 100pF m VR4 25K Trim -30 -25 -20 -15 -10 -6-4-2-10 R42 75 R41 100 R39 130 R37 220 R35 220 R32 750 R30 1.5K R29 4.99K R28 10.0K R27 10.0K R26 100K -15 -15-15 -15 +15 +15 +15 Q3 2N4403 R43 300 +15 -15 -15 R47 10.0K R46 2.2K Y R R R R R R R R R LED3 C49 47uF 25V C48 47uF 25V 5

18、 4 2 312 + - U7A LM339AN 7 6 1 U7B 9 8 14 U7C 11 10 13 U7D 5 4 2 312 + - U6A 7 6 1 U6B 9 8 14 U6C 11 10 13 U6D -30 -25 -20 -15 -10 -6-4-2-10 R85 75 R84 100 R82 130 R79 220 R76 220 R75 750 R73 1.5K R70 4.99K R69 10.0K R68 10.0K R66 100K -15 -15-15 +15+15 Q6 2N4403 R86 300 +15 -15 -15 R89 10.0K R87 2.

19、2K LADDER_2 x 2 -15 -15 x 2 - All Comparators - All Comparators CV_OUT_2 CV_OUT_2 -20dBm +20dBm 2:1 100:1 4:1 0dBm +12 0dB -20dBm +20dBm 2:1 100:1 4:1 0dBm +12 0dB CH1_BUFF CH2_BUFF THR_DRIVE_2 (Tube inverts) (Tube inverts) C42 10uF 50V C46 10uF 50V THR_WIP_2 THR_OUT R111 5.1M VR8 25K Trim R124 2.2K R71 1M R57 4.99K R100 1M R91 4.99K 收音机爱好者资料库 Ra d i o Fa n s .CN