Alto_S-8_Mixer_Service_Manual电路图.pdf

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1、Service Manual Version: 1.2 ISSUE:2003.9.21 Model: S-8 8 Channel Mixing Console 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 List 9. N

2、otes RadioFans.CN 收音机爱 好者资料库 2.1 2. 功能特性介紹說明(FEATURE)2. 功能特性介紹說明(FEATURE) The S-8 is 5 mono MIC/LINE channels with MIC PREAMPS plus 2 stereo channels perfect for keyboards, MIDI equipment or other stereo sound sources and a 2-track input/output for recording and playback in a mixer small enough to c

3、arry in your board luggage: meet the ALTO S-8. In spite of its size, you can find great 3-band equalizers in each channel plus switchable low-cut filters in the mono channels, 2 AUX sends, 2 stereo returns, phantom power and accurate peak LED and level meters. Plus of course our ultra low noise circ

4、uitry and exceptional build quality. - 5 MIC Input Channels with gold plated XLRs and balanced Line Inputs. - 2 Stereo Input Channels with balanced TRS Jacks. - Ultra-low noise discrete Mic Preamps with +48 V Phantom Power. - 2 additional multifunctional Stereo Line Inputs. - Extremely high headroom

5、 offering more dynamic range. - Balanced Inputs for highest signal integrity. - Warm, natural 3-band EQ on each channels. - Peak LEDs and switchable low-Cut Filter on each Channels. - 2 AUX Sends per channel for external effects and monitoring. - Balanced TRS and XLR outputs, Control Room and Headph

6、one Outputs. - 2-Track Inputs assignable to Main Mix, Control Room / Headphone Outputs. - Highly accurate 12 segment Bar graph Meters. - Inserts on MIC channels. - performance and excellent noise figures - Rugged construction ensures long life even under the most demanding conditions - Manufactured

7、under ISO9001 certified management system Features: Functiondescriptionnotes Channel inputs8 Mono channels4(5) Stereo channels2 MIC PREAMPS4 EQ (mono channels)3-band plus low-cut EQ (stereo channels)3-band Aux sends2 Stereo aux returns2 2-track input/output1 Phantom power+48 V RadioFans.CN 收音机爱 好者资料

8、库 12345678 A B C D 87654321 D C B A S8-MAP.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 8-Aug-2003 KEVIN LIN. ALTO MIXING CONSOLE 11of S-8 BLOCK DIAGRAM VER020521 A3 MONO INPUT CHANNELS ( 1-4 ) 2 1 3 MIC IN +48V 3-BAND EQ 12K2.5K80 HI PASS 2 1 3 LO CUT SG/OL LEFT-BUS RIGHT-BUS AUX-1

9、AUX-2 RIGHT-BUS LEFT-BUS AUX-1 AUX-2 STEREO INPUT CHANNELS (5-8) EQ 12K2.5K80 LEFT-BUS RIGHT-BUS AUX-1 AUX-2 LEFT-BUS RIGHT-BUS STEREO AUX RETURN 2 2 1 3 EFX TO AUX-1 2 1 3 RIGHT-BUS LEFT-BUS AUX-1 AUX-1 AUX-1 AUX SEND AUX-2 MAIN OUT LEFT-BUS RIGHT-BUS 2 1 3 2TK TO MIX 2 1 3RIGHT-BUS LEFT-BUS TAPE I

10、N RIGHT 2-TRACK 2 1 3 2TK TO CTRL ROOM 2 1 3 PHONES OUTPUT LEFT METER RIGHT METER 75Hz +/-15db 3-BAND EQ 12K2.5K80 +/-15db 3c 5e 1a 4d 2b LEFT 3c 5e 1a 4d 2b RIGHT MAIN MIX AUX SEND1 T R S AUX SEND2 T R S MAIN MIX LEFT T R S MAIN MIX RIGHT T R S CONTROL ROOM OUTPUT LEFT T R S RIGHT T R S PHONES T R

11、S & PHONES CONTROL ROOM LEFT TAPE OUT 2 1 3 2 1 3 LEVEL AUX RETURN2 STEREO AUX RETURN 1 3c 5e 1a 4d 2b LEFT(MONO) 3c 5e 1a 4d 2b RIGHT AUX RETURN1 - + T R S RN TN T R S RN TN T R S RN TN T R S RN TN PAN PHANTOM LINE IN GAIN - + POWER - + - + - + LOMIDHI 12 12 AUX1 AUX2 LEVEL POST PRE BALANCE AUX1 AU

12、X2 LEVEL LOMIDHI SG/OL 3c 5e 1a 4d 2b LEFT(MONO) 3c 5e 1a 4d 2b RIGHT T R S RN TN T R S RN TN - + - + 2 1 3 MIC5 IN +48V PHANTOM GAIN - + POWER CHANNEL 5,6 ONLY 3c 5e 1a 4d 2b INSERT T R S RN TN MIC GAIN:060dB LINE IN TRIM:+15dB-45dB 12345678 A B C D 87654321 D C B A S8-IN1-2.Sch Titel Size File: Da

13、te: Drawn By: Sheet RevisionModel No: 19-Sep-2003 KEVIN LIN. INPUT STAGE ( CH1-CH4 ) 41of ALTO S-8 VER020815 A2 R13 4R7 R14 4R7 C6 1n C5 1n C51 1000u/10V R11 4R7 VR1 O10K R12 1K50 R50 2K49 3 2 1 U2A NJM4580M R46 5K11 C49 22P C85 47u/25V 5 6 7 U2B NJM4580M R131 62K R136 1K3 R177 20K R176 20K C86 47u/

14、25V C70 0.22u/50V C71 0.22u/50V C72 0.22u/50V R149 6K8 1 2 3 SW1A PS-22E85L 4 5 6 P SW1B PS-22E85L LO CUT 2 1 3 4 X5 JY-5042-030G 3c 5e 1a 4d 2b X6 JY-6351G-02-250 3c 5e 1a 4d 2b X1 JY-6351G-02-250 EQ HI 12KHZ C131 18n(M) VR2 B50K R151 6K8 VR4 B50K R150 6K8 LO R47 10K C87 47u/25V 5 6 7 U3B NJM4580M

15、R220 1M C179 22P R212 1K1 VR3 B50K R137 1K3 MID R196 910R C155 12n(M) R197 910R C139 33n(M) C140 33n(M) C171 12n(M) C163 18n(M) C88 47u/25V R285 5K1 VR6 W50K AUX-1 R228 47K R248 4K7 C195 2.2u/50V R152 6K8 TR2 BR TR1 BR R264 1K5 +VCC LD1 RED R236 22K 3 2 1 U3A NJM4580M VR8 W50K PEAK C89 47u/25V R256

16、3K9 R270 36K C180 22P VR5 W50K C90 47u/25V R284 5K1 AUX-2 LEVEL AUX-POST VR7A JQ10K VR7B JQ10K R287 5K1 R286 5K1 LEFT-BUS RIGHT-BUS PAN PGND AUX-PRE T R S RN TN T R S RN TN 80HZ 2.5K GND-INS INSERT1 C1 330P C15 10n R388 470R R45 2K49 C29 47u/63V C30 47u/63V R29 6K34 R30 6K34 C20 22u/35V C19 22u/35V

17、R2 6K81 R1 6K81 3 2 1 U5A NJM4580M R54 5K11 C54 22P C91 47u/25V 5 6 7 U5B NJM4580M R132 62K R138 1K3 R179 20K R178 20K C93 47u/25V C73 0.22u/50V C74 0.22u/50V C75 0.22u/50V R153 6K8 1 2 3 SW2A PS-22E85L 4 5 6 P SW2B PS-22E85L LO CUT 2 1 3 4 X7 JY-5042-030G 3c 5e 1a 4d 2b X8 JY-6351G-02-250 3c 5e 1a

18、4d 2b X2 JY-6351G-02-250 EQ HI 12KHZ C132 18n(M) VR10 B50K R155 6K8 VR12 B50K R154 6K8 LO R55 10K C94 47u/25V 5 6 7 U6B NJM4580M R221 1M C181 22P R213 1K1 VR11 B50K R139 1K3 MID R198 910R C156 12n(M) R199 910R C141 33n(M) C142 33n(M) C172 12n(M) C164 18n(M) C95 47u/25V R289 5K1 VR14 W50K AUX-1 R229

19、47K R249 4K7 C196 2.2u/50V R156 6K8 TR4 BR TR3 BR R265 1K5 +VCC LD2 RED R237 22K 3 2 1 U6A NJM4580M VR16 W50K PEAK C96 47u/25V R257 3K9 R271 36K C183 22P VR13 W50K C98 47u/25V R288 5K1 AUX-2 LEVEL AUX-POST VR15A JQ10K VR15B JQ10K R291 5K1 R290 5K1 LEFT-BUS RIGHT-BUS PAN PGND AUX-PRE T R S RN TN T R

20、S RN TN 80HZ 2.5K GND-INS INSERT2 3 2 1 U8A NJM4580M R62 5K11 C58 22P C92 47u/25V 5 6 7 U8B NJM4580M R133 62K R140 1K3 R182 20K R180 20K C100 47u/25V C76 0.22u/50V C77 0.22u/50V C78 0.22u/50V R157 6K8 1 2 3 SW3A PS-22E85L 4 5 6 P SW3B PS-22E85L LO CUT 2 1 3 4 X9 JY-5042-030G 3c 5e 1a 4d 2b X10 JY-63

21、51G-02-250 3c 5e 1a 4d 2b X3 JY-6351G-02-250 EQ HI 12KHZ C133 18n(M) VR18 B50K R159 6K8 VR20 B50K R158 6K8 LO R63 10K C101 47u/25V 5 6 7 U9B NJM4580M R222 1M C182 22P R214 1K1 VR19 B50K R141 1K3 MID R200 910R C157 12n(M) R201 910R C143 33n(M) C144 33n(M) C173 12n(M) C165 18n(M) C103 47u/25V R293 5K1

22、 VR22 W50K AUX-1 R230 47K R250 4K7 C197 2.2u/50V R160 6K8 TR6 BR TR5 BR R266 1K5 +VCC LD3 RED R238 22K 3 2 1 U9A NJM4580M VR24 W50K PEAK C97 47u/25V R258 3K9 R272 36K C184 22P VR21 W50K C106 47u/25V R292 5K1 AUX-2 LEVEL AUX-POST VR23A JQ10K VR23B JQ10K R295 5K1 R294 5K1 LEFT-BUS RIGHT-BUS PAN PGND A

23、UX-PRE T R S RN TN T R S RN TN 80HZ 2.5K GND-INS INSERT3 3 2 1 U11A NJM4580M R67 5K11 C59 22P C99 47u/25V 5 6 7 U11B NJM4580M R134 62K R142 1K3 R183 20K R181 20K C108 47u/25V C79 0.22u/50V C80 0.22u/50V C81 0.22u/50V R161 6K8 1 2 3 SW4A PS-22E85L 4 5 6 P SW4B PS-22E85L LO CUT 2 1 3 4 X11 JY-5042-030

24、G 3c 5e 1a 4d 2b X12 JY-6351G-02-250 3c 5e 1a 4d 2b X4 JY-6351G-02-250 EQ HI 12KHZ C134 18n(M) VR26 B50K R163 6K8 VR28 B50K R162 6K8 LO R71 10K C102 47u/25V 5 6 7 U12B NJM4580M R223 1M C185 22P R215 1K1 VR27 B50K R143 1K3 MID R202 910R C158 12n(M) R203 910R C145 33n(M) C146 33n(M) C174 12n(M) C166 1

25、8n(M) C104 47u/25V R298 5K1 VR30 W50K AUX-1 R231 47K R251 4K7 C198 2.2u/50V R164 6K8 TR8 BR TR7 BR R267 1K5 +VCC LD4 RED R239 22K 3 2 1 U12A NJM4580M VR32 W50K PEAK C105 47u/25V R259 3K9 R273 36K C186 22P VR29 W50K C107 47u/25V R297 5K1 AUX-2 LEVEL AUX-POST VR31A JQ10K VR31B JQ10K R296 5K1 R299 5K1

26、LEFT-BUS RIGHT-BUS PAN PGND AUX-PRE T R S RN TN T R S RN TN 80HZ 2.5K GND-INS INSERT4 LINE IN1 LINE IN2 LINE IN3 LINE IN4 MIC 1 MIC 2 MIC 3 MIC 4 84 U3C NJM4580M 84 U6C NJM4580M 84 U2C NJM4580MC203 100n C201 100n C204 100n C202 100n +VCC -VCC C205 100n C206 100n 84 U5C NJM4580MU1 U12= 84 U8C NJM4580

27、M 84 U11C NJM4580M 84 U12C NJM4580M 84 U9C NJM4580M S8-PU1 S8-PU1.SCH S8-DSP S8-DSP.SCH S8-IN2 S8-IN2.SCH PH PWR 1 CN1A 5PIN 1 CN2A 5PIN 1 CN4A 5PIN 2 CN1B 5PIN 2 CN4B 5PIN 3 CN1C 5PIN 3 CN4C 5PIN 4 CN1D 5PIN 4 CN4D 5PIN 5 CN4E 5PIN 1 CN3A 5PIN 2 CN2B 5PIN 2 CN3B 5PIN 3 CN2C 5PIN 3 CN3C 5PIN 4 CN2D

28、5PIN 4 CN3D 5PIN 5 CN3E 5PIN GND-INS 5 CN1E 5PIN 5 CN2E 5PIN GND-INS J2 POST (PRE) J1 POST (PRE) J3 POST (PRE) J4 POST (PRE) C287 100n C288 100n C289 100n C290 100n C291 100n C292 100n C293 100n C294 100n C295 100n C296 100n C297 100n C298 100n C299 100n C300 100n C301 100n C302 100n C303 100n C304

29、100n (SOLTON1K2)用 TR15 HR TR16 A1316 R15 1K50 -VCC +VCC R52 2K49 R51 2K49 C16 10n R389 470R TR25 HR TR26 A1316 -VCC +VCC TP1 TP2 TP3 TP4 TP27 TP28 TP29 TP30 L1 0R0 3 2 1 U1A NJM4580M 5 6 7 U1B NJM4580M C48 22P C50 22P R403 5K11 R402 5K11 R58 2K49 -VCC R57 2K49 TR35 HR +VCC R53 2K49 D4 BAS316 +VCC R2

30、8 20K -VCC R417 10K0 R418 10K0 R404 5K11 C57 22P 84 U1C NJM4580M 84 U4C NJM4580M 84 U7C NJM4580M 84 U10C NJM4580M R48 4R7 R49 4R7 C8 1n C7 1n C52 1000u/10V R398 4R7 VR9 O10K R16 1K50 R60 2K49 C2 330P C17 10n R390 470R R59 2K49 C32 47u/63V C33 47u/63V R31 6K34 R32 6K34 C23 22u/35V C21 22u/35V R4 6K81

31、 R3 6K81 PH PWR TR17 HR TR18 A1316 R17 1K50 -VCC +VCC R65 2K49 R64 2K49 C35 10n R391 470R TR27 HR TR28 A1316 -VCC +VCC L2 0R0 3 2 1 U4A NJM4580M 5 6 7 U4B NJM4580M C60 22P C61 22P R406 5K11 R405 5K11 R94 2K49 -VCC R91 2K49 TR36 HR +VCC R56 2K49 D5 BAS316 +VCC R40 20K -VCC R419 10K0 R420 10K0 R407 5K

32、11 C62 22P R19 4R7 R20 4R7 C10 1n C9 1n C53 1000u/10V R399 4R7 VR17 O10K R18 1K50 R61 2K49 C3 330P C31 10n R392 470R R127 2K49 C34 47u/63V C36 47u/63V R33 6K34 R34 6K34 C26 22u/35V C25 22u/35V R6 6K81 R5 6K81 PH PWR TR19 HR TR20 A1316 R21 1K50 -VCC +VCC R66 2K49 R129 2K49 C38 10n R393 470R TR29 HR T

33、R30 A1316 -VCC +VCC L3 0R0 3 2 1 U7A NJM4580M 5 6 7 U7B NJM4580M C64 22P C82 22P R409 5K11 R408 5K11 R144 2K49 -VCC R126 2K49 TR37 HR +VCC R90 2K49 D6 BAS316 +VCC R42 20K -VCC R421 10K0 R422 10K0 R410 5K11 C63 22P R24 4R7 R25 4R7 C12 1n C11 1n C55 1000u/10V R400 4R7 VR25 010K R22 1K50 R128 2K49 C4 3

34、30P C40 10n R394 470R R191 2K49 C37 47u/63V C39 47u/63V R35 6K34 R36 6K34 C28 22u/35V C27 22u/35V R8 6K81 R7 6K81 PH PWR TR21 HR TR22 A1316 R23 1K50 -VCC +VCC R130 2K49 R379 2K49 C44 10n R395 470R TR31 HR TR32 A1316 -VCC +VCC L4 0R0 3 2 1 U10A NJM4580M 5 6 7 U10B NJM4580M C84 22P C110 22P R413 5K11

35、R412 5K11 R380 2K49 -VCC R165 2K49 TR38 HR +VCC R135 2K49 D7 BAS316 +VCC R43 20K -VCC R423 10K0 R424 10K0 R411 5K11 C83 22P MIC GAIN=-10-60dB LINE IN GAIN=+10-40dB C319 47u/25V C318 47u/25V C320 47u/25V C321 47u/25V 12345678 A B C D 87654321 D C B A S8-IN2.Sch Titel Size File: Date: Drawn By: Sheet

36、RevisionModel No: 19-Sep-2003 KEVIN LIN. INPUT STAGE ( CH5-CH8) 42of ALTO S-8 VER020815 A2 2 1 3 4 X13 JY-5042-030G 3c 5e 1a 4d 2b X14 JY-6351G-02-250 EQ HI 12KHZ C135 18n(M) VR34A B50K R167 6K8 VR36A B50K R166 6K8 LO R96 10K C111 47u/25V 3 2 1 U16A NJM4580M R224 1M C187 22P R216 1K1 VR35A B50K R145

37、 1K3 MID R204 910R C159 12n(M) R205 910R C147 33n(M) C148 33n(M) C175 12n(M) C167 18n(M) C112 47u/25V R312 5K1 VR38 W50K AUX-1 R232 47K R254 4K7 C199 2.2u/50V R170 6K8 TR10 BR TR9 BR R268 1K5 +VCC LD5 RED R244 22K 3 2 1 U17A NJM4580M VR40A W50K PEAK C113 47u/25V R260 3K9 R281 36K C188 22P VR37 W50K

38、C116 47u/25V R313 5K1 AUX-2 LEVEL AUX-POST VR39A JQ10K VR39B JQ10K R311 5K1 R310 5K1 LEFT-BUS RIGHT-BUS BAL PGND AUX-PRE T R S RN TN 80HZ 2.5K LINE IN 5/6 MIC 5 3c 5e 1a 4d 2b X15 JY-6351G-02-250 T R S RN TN LEFT(MONO) RIGHT 3 2 1 U15A NJM4580M R108 10K C66 22P C117 47u/25V R105 10K C227 22P R101 18

39、K C275 100P R102 18K C273 100P 5 6 7 U15B NJM4580M R109 10K C67 22P C118 47u/25V R106 10K C228 22P R103 18K C276 100P R104 18K C274 100P R107 10K R110 10K EQ HI 12KHZ C136 18n(M) VR34B B50K R169 6K8 VR36B B50K R168 6K8 LO R111 10K C119 47u/25V 5 6 7 U16B NJM4580M R225 1M C190 22P R217 1K1 VR35B B50K

40、 R146 1K3 MID R206 910R C160 12n(M) R207 910R C149 33n(M) C150 33n(M) C176 12n(M) C168 18n(M) C120 47u/25V 80HZ 2.5K R192 20K R193 20K R97 10K R98 10K R233 47K R245 22K 5 6 7 U17B NJM4580M VR40B W50K C114 47u/25V R261 3K9 R280 36K C189 22P C115 47u/25V LEVEL R100 10K R99 10K EQ HI 12KHZ C137 18n(M)

41、VR41A B50K R172 6K8 VR43A B50K R171 6K8 LO R120 10K C124 47u/25V 3 2 1 U19A NJM4580M R226 1M C191 22P R218 1K1 VR42A B50K R147 1K3 MID R208 910R C161 12n(M) R209 910R C151 33n(M) C152 33n(M) C177 12n(M) C169 18n(M) C127 47u/25V R317 5K1 VR45 W50K AUX-1 R235 47K R255 4K7 C200 2.2u/50V R173 6K8 TR12 B

42、R TR11 BR R269 1K5 +VCC LD6 RED R246 22K 3 2 1 U20A NJM4580M VR47A W50K PEAK C121 47u/25V R262 3K9 R283 36K C192 22P VR44 W50K C130 47u/25V R314 5K1 AUX-2 LEVEL AUX-POST VR46A JQ10K VR46B JQ10K R316 5K1 R315 5K1 LEFT-BUS RIGHT-BUS BAL PGND AUX-PRE 80HZ 2.5K EQ HI 12KHZ C138 18n(M) VR41B B50K R175 6K

43、8 VR43B B50K R174 6K8 LO R125 10K C125 47u/25V 5 6 7 U19B NJM4580M R227 1M C193 22P R219 1K1 VR42B B50K R148 1K3 MID R210 910R C162 12n(M) R211 910R C153 33n(M) C154 33n(M) C178 12n(M) C170 18n(M) C126 47u/25V 80HZ 2.5K R121 10K R122 10K R234 47K R247 22K 5 6 7 U20B NJM4580M VR47B W50K C128 47u/25V

44、R263 3K9 R282 36K C194 22P C129 47u/25V LEVEL R124 10K R123 10K 3c 5e 1a 4d 2b X16 JY-6351G-02-250 T R S RN TN LINE IN 7/8 3c 5e 1a 4d 2b X17 JY-6351G-02-250 T R S RN TN LEFT(MONO) RIGHT 3 2 1 U18A NJM4580M R118 10K C68 22P C122 47u/25V R116 10K C229 22P R112 10K C279 100P R113 10K C277 100P 5 6 7 U

45、18B NJM4580M R119 10K C69 22P C123 47u/25V R117 10K C230 22P R114 10K C280 100P R115 10K C278 100P R194 20K R195 20K 84 U15C NJM4580M 84 U18C NJM4580M 84 U14C NJM4580M 84 U19C NJM4580M 84 U16C NJM4580MC217 100n C215 100n C218 100n C216 100n +VCC -VCC C219 100n C220 100n 84 U17C NJM4580M U13 U20= 84

46、U20C NJM4580M 5 CN5E 5PIN 5 CN6E 5PIN 4 CN5D 5PIN 4 CN6D 5PIN 3 CN5C 5PIN 3 CN6C 5PIN 2 CN5B 5PIN 2 CN6B 5PIN 1 CN5A 5PIN 1 CN6A 5PIN J5 POST (PRE) J6 POST (PRE) TP5 TP6 TP7 TP8 TP31 TP32 TP33 TP34 R88 4R7 R89 4R7 C14 1n C13 1n C56 1000u/10V R401 4R7 VR33 O10K R26 1K50 R382 2K49 3 2 1 U14A NJM4580M

47、R95 5K11 C65 22P C109 47u/25V R190 20K C18 330P C46 10n R396 470R R381 2K49 C41 47u/63V C42 47u/63V R10 6K81 R9 6K81 PH PWR TR23 HR TR24 A1316 R27 1K50 -VCC +VCC R384 2K49 R383 2K49 C47 10n R397 470R TR33 HR TR34 A1316 -VCC +VCC L5 0R0 3 2 1 U13A NJM4580M 5 6 7 U13B NJM4580M C315 22P C316 22P R415 5

48、K11 R414 5K11 R387 2K49 -VCC R386 2K49 TR39 HR +VCC R385 2K49 D8 BAS316 +VCC R44 20K -VCC R425 10K0 R426 10K0 R416 5K11 C317 22P 84 U13C NJM4580M 12345678 A B C D 87654321 D C B A S8-PU1.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 19-Sep-2003 KEVIN LIN. STEREO AUX & SENDS & MAIN OUT

49、 & 2TK & CTRL R & PHONES 43of ALTO S-8 VER020724A2 3c 5e 1a 4d 2b X18 JY-6351G-02-250 STEREO AUX LEFT 1 C265 100P 3c 5e 1a 4d 2b X19 JY-6351G-02-250 RIGHT 1 C241 47u/25V R77 10K R241 22K C266 100P C239 47u/25V R78 10K R240 22K VR48B W50K VR48A W50K 3 2 1 U21A NJM4580M 5 6 7 U21B NJM4580M 84 U23C NJM4580M R318 56K C223 22P C243 47u/25V R302 5K1 R320 56K C269 22P C245 47u/25V R304 5K1 5 6 7 U25B NJM4580M 3 2 1 U25A NJM4580M 84 U26C NJM4580M R300 5K1 C259 22P LEFT-BUS RIGHT-BUS C260 22P R306 5K1 R305 5K1 84 U22C NJM4580M 84 U21C NJM4580M R301 5K1 C234 47u/25V C233 47u/25V 5 6 7 U26B NJM45