Rane DA 26S DA 26S Schematic - Page 2

LINE INPUT + 1 - 2 GND 3 J1 3pin EURO Z1 220pF Z2 220pF R5 R320 C9 1.00k C39 9.09k R6 220pF R321 R7 R11 47pF R15 1.00k GND C40 9.09k 220pF 6 5 GND 10.0k U2B 7 33078 10.0k 2 3 GND 4 8 10.0k +15 U2A 1 33078 -15 DECOUPLING CAPS +15 C1 C3 C5 0.1 0.1 0.1 C7 C8 GND C2 C4 C6 0.1 0.1 0.1 0.1 0.1 -15 C10 22/16v XOVER IN -15 C11 0.33 R21 1.10M R19 26.7k C12 10/50v + C14 10/50v + R30 +15 1.00k 1 IN GND U4 2252 OUT 7 6.1mV/dB R35 6.04k 2 BIAS V+ 8 5 V- CAP 6 3 GND 4 SYM R20 R23 C13 26.7k 20.0 0.1 -15 Ein 0 = -20 dBu R27 511k GND -15 R28 11.3k 2 R36 124k 31 R32A 20kB TARGET R33 3.57k 0 -6 +6 GAIN DECREASE RC = 11ms/230ms GAIN INCREASE RC = 1 sec. AGC RELEASE RC = 11 sec. (10 ms) (200 ms) FAST SLOW S1A 1P2T R41 1 3 2 124k C15 R44 R47 D9 47pF 10.0k 511 4148 C16 R49 6 5 U5B 7 072 GND 125mV/dB R45 51.1k +15 2 3 U5A 1 072 -15 4 8 D8 22/16v 511k 4148 D7 4148 R48 GND GAIN 0 dB 10.0k D10 YEL GND -15 R39 +15 R42 RANGE 1.00k GND 100k R46 (Vth -26 dB) R43 1.10M 30.1k GND 5 6 U6B 7 072 R50A 20kB RATIO 13 2 R51 10.0k R52 8.06k GND 1.5:1 1.2:1 2:1 +15 8 2 3 U6A 1 072 4 GND -15 1:1 1:0 RATIO -12 +12 TARGET LEVEL 100 mV/dB AGC VC GAIN +15 GAIN +15 -12 dB D1 GRN R2 10.0k -6 dB D2 GRN R8 10.0k -3 dB D3 GRN R12 10.0k +3 dB R17 2.00k R18 1.10M D4 GRN R24 10.0k +15 R1 47.5k 6 7 U1B 1 LM339 1200 mV R3 2.20M R4 2.00k 10 11 U1D 13 LM339 600 mV R9 2.20M R10 1.00k 8 9 U1C 14 LM339 300 mV R13 2.20M R14 R16 1.00k 1.00k GND 12 3 +15 5 4 U3A 2 LM339 -15 -300 mV R22 1.00k +6 dB R25 2.00k R26 1.10M D5 GRN R31 10.0k 7 6 U3B 1 LM339 -600 mV R29 2.00k +12 dB R34 2.00k R37 1.10M D6 GRN R40 10.0k 9 8 U3C 14 LM339 -1200 mV -15 R38 47.5k UNUSED 4 5 S1B 1P2T GND 46 46 R32B 20kB 5 R32C 20kB GND R50B 20kB 5 R50C 20kB GND 3 +15 4 5 U1A 2 LM339 12 GND -15 10 11 U3D 13 LM339 GND 6/6/2007 C:\cad projects\DA26S\110318-1.SchDoc ACTION: DRAWN BY: SKH CHECKED BY: DA26S AGC 10802 47th Avenue West SHEET: Mukilteo WA 98275-5098 1 of 6 110318