Alto-AMX140-dsp-sm2 电路图 维修手册.pdf

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1、 Service Manual Version: .2 Model: AMX-140/AMX-140FX 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. Notes RadioFans.CN 收音机爱 好者资料

2、库 Mono input channels Microphone input electronically balanced, discrete input configuration Frequency response 10Hz to 55kHz, + /- 3dB Distortion (THD & N) 0.005% at +4dBu, 1kHz Gain range 0dB to 44dB (MIC) SNR (Signal to Noise Ratio) 115dB Line input electronically balanced Frequency response 10Hz

3、 to 55kHz, + -3dB Distortion (THD & N) 0.005% at +4dBu, 1kHz Sensitivity range +15dBu to -30dBu Stereo input channels Line input Unbalanced Frequency response 10Hz to 55kHz, +/- 3dB Distortion (THD & N) 0.005% at +4dBu, 1kHz Impedances Microphone input 1.4kOhm Channel Insert return 2.5kOhm All other

4、 inputs 10kOhm or greater Tape out 1kOhm All other output 120Ohm Equalization Hi shelving + /- 15dB 12kHz Mid bell + /- 12dB 2.5kHz Low shelving + /- 15dB 80Hz Low Cut filter 75Hz, 18dB/oct. DSP Section (For AMX-140FX Model) A/D and D/A converters 24 bit DSP resolution 24 bit Type of effects Hall, R

5、oom, Vocal & Plate REVERBS Mono & Stereo DELAY (max DELAY TIME 650ms) Chorus, Flanger & Reverb MODULATIONS REVERB+DELAY, REVERB+CHORUS, REVERB+FLANGER combinations Presets 256 Controls 16-position PRESET Selector 16-position VARIATION selector PEAK LED MUTE SWITCH with LED indicator Main Mix Section

6、 Noise (Bus noise) Fader 0 dB, channels muted: -100dBr (ref.:+4dBu) Fader 0dB, all input channels assigned and set to UNITY gain: 90dBr (ref.:+4dBu) Max output +22dBu balanced XLR, +22dBu unbalanced, 1/4 jacks AUX Returns gain range -to +20dB AUX Sends max out +22dBu Power supply (AC/AC Adaptor) Mai

7、n voltage USA/Canada 100 120V, 60Hz Europe 210 240V, 50Hz U.K./Australia 240V, 50Hz Power Consumption 17.1 watts Physical Dimension (W X D X H) 270mmX310mmX35/45mm (7.79X8.95”X1.01”/1.30”) Net weight 3.0Kg (6.61lb) Shipping weight 3.6Kg (7.94lb) 1.Specification 01_1 RadioFans.CN 收音机爱 好者资料库 12345678

8、A B C D 87654321 D C B A AMX140FX MAP.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 19-Dec-2003 ALTO MIXING CONSOLE 11of AMX-140FX BLOCK DIAGRAM VER031210 A2(C) 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 AUX-2

9、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 RIGHT-BUS LEFT-BUS 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 IN RIGHT 2-TRACK 2 1 3 2TK TO CTRL ROOM 2 1

10、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 S & PHONES CONTROL ROOM LEFT TAPE OUT 2 1 3

11、 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 AUX2 LEVEL LOMIDHI SG/OL 3c 5e 1a 4d 2b LEFT(

12、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 EFX SEND DSP BOARD PRESETS VARIATIONS MUTE DSP FOOTSWITCH EFX SEND LEFT-BUS RIGHT-BUS AUX-1 AUX-2 EFX SEND AU

13、X-1 AUX1 2TK IN LEVEL 2.Block Diagram 02_1 12345678 A B C D 87654321 D C B A AMX140FX.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 18-Aug-2005 KEVIN LIN. AMX-140 51of AMX-140 VER030722 A2 5 6 7 U5B NJM4580M R131 62K R177 20K C86 47u/25V C70 0.22u/50V C71 0.22u/50V C72 0.22u/50V R149

14、6K8 1 2 3 SW1A PS-22E85L 4 5 6 P SW1B PS-22E85L LO CUT 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 U9B NJM4580M 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

15、12n(M) C163 18n(M) C88 47u/25V R285 8K06 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 U9A NJM4580M VR8 W50K PEAK C89 47u/25V R256 3K9 R270 36K C180 22P VR5 W50K C90 47u/25V R284 8K06 AUX-2 LEVEL AUX-POST R287 5K1 R286 5K1 LEFT-BUS RIGHT-B

16、US PAN PGND AUX-PRE T R S RN TN 80HZ 2.5K INSERT1 5 6 7 U6B NJM4580M R132 62K R138 1K3 R179 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 3c 5e 1a 4d 2b X2 JY-6351G-02-250 EQ HI 12KHZ C132 18n(M) VR10 B50K R155 6K8 VR12 B50K R15

17、4 6K8 LO R55 10K C94 47u/25V 5 6 7 U10B 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 8K06 VR14 W50K AUX-1 R229 47K R249 4K7 C196 2.2u/50V R156 6K8 TR4 BR TR3 BR R265 1K5 +VCC LD2 RED R237 22

18、K 3 2 1 U10A NJM4580M VR16 W50K PEAK C96 47u/25V R257 3K9 R271 36K C183 22P VR13 W50K C98 47u/25V R288 8K06 AUX-2 LEVEL AUX-POST R291 5K1 R290 5K1 LEFT-BUS RIGHT-BUS PAN PGND AUX-PRE T R S RN TN 80HZ 2.5K INSERT2 5 6 7 U7B NJM4580M R133 62K R140 1K3 R182 20K C100 47u/25V C76 0.22u/50V C77 0.22u/50V

19、C78 0.22u/50V R157 6K8 1 2 3 SW3A PS-22E85L 4 5 6 P SW3B PS-22E85L LO CUT 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 U11B NJM4580M R222 1M C182 22P R214 1K1 VR19 B50K R141 1K3 MID R200 910R C157 12n(M) R201 910R C143

20、33n(M) C144 33n(M) C173 12n(M) C165 18n(M) C103 47u/25V R293 8K06 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 U11A NJM4580M VR24 W50K PEAK C97 47u/25V R258 3K9 R272 36K C184 22P VR21 W50K C106 47u/25V R292 8K06 AUX-2 LEVEL AUX-POST R295

21、 5K1 R294 5K1 LEFT-BUS RIGHT-BUS PAN PGND AUX-PRE T R S RN TN 80HZ 2.5K INSERT3 5 6 7 U8B NJM4580M R134 62K R142 1K3 R183 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 3c 5e 1a 4d 2b X4 JY-6351G-02-250 EQ HI 12KHZ C134 18n(M) V

22、R26 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 18n(M) C104 47u/25V R298 8K06 VR30 W50K AUX-1 R231 47K R251 4K7 C198 2.2u/50V R164 6K8 TR8 BR TR7

23、 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 8K06 AUX-2 LEVEL AUX-POST R296 5K1 R299 5K1 LEFT-BUS RIGHT-BUS AUX-PRE T R S RN TN 80HZ 2.5K INSERT4 U1 U12= AMX-140 AMX140FX.S01 AMX-140 AMX140FX.S03 J2 POST (PR

24、E) 1 2 3J1 POST (PRE) J3 POST (PRE) J4 POST (PRE) (SOLTON1K2) MIC GAIN=-10-60dB LINE IN GAIN=+10-40dB C319 47u/25V C318 47u/25V C320 47u/25V C321 47u/25V VR1 O10K C1 470P C15 22u/35V R19 11K0 LINE IN1 MIC 1 C21 47u/50V R23 3K60 R15 6K81 1/4W PH PWR C3 470P R16 6K81 1/4W C22 47u/50V C4 47P R20 11K0 R

25、24 3K60 C16 22u/35V R69 51.1K R68 51.1K C2 470P 2 1 3 4 X5 SMC-6.02 R3 5K11 R4 5K11 C27 22P C28 22P R26 10K0 R73 27R C23 1000u/10V 3 2 1 U1A 4580M R25 10K0 R27 5K11 C29 22P R28 5K11 C30 22P C17 47u/25V R5 20K 3c 5e 1a 4d 2b X6 JY-6351G-02-250 5 6 7 U1B 4580M 3 2 1 U5A 4580M R2 4R7 R1 4R7 VR9 O10K C5

26、 470P C18 22u/35V R21 11K0 LINE IN2 MIC 2 C24 47u/50V R29 3K60 R17 6K81 1/4W PH PWR C10 470P R18 6K81 1/4W C25 47u/50V C11 47P R22 11K0 R30 3K60 C19 22u/35V R386 51K1R8 51K1 C7 470P 2 1 3 4 X7 SMC-6.02 R10 5K11 R11 5K11 C31 22P C32 22P R32 10K0 R74 27R C26 1000u/10V 3 2 1 U2A 4580M R31 10K0 R33 5K11

27、 C33 22P R34 5K11 C34 22P C20 47u/25V R12 20K 3c 5e 1a 4d 2b X8 JY-6351G-02-250 5 6 7 U2B 4580M 3 2 1 U6A 4580M R38 4R7 R37 4R7 VR17 O10K C6 470P C38 22u/35V R46 11K0 LINE IN3 MIC 3 C44 47u/50V R51 3K60 R70 6K81 1/4W PH PWR C13 470P R42 6K81 1/4W C48 47u/50V C35 47P R48 11K0 R53 3K60 C40 22u/35V R36

28、 51.1K R35 51.1K C9 470P 2 1 3 4 X9 SMC-6.02 R64 5K11 R66 5K11 C54 22P C52 22P R59 10K0 R56 27R C50 1000u/10V 3 2 1 U3A 4580M R58 10K0 R62 5K11 C55 22P R76 5K11 C58 22P C61 47u/25V R84 20K 3c 5e 1a 4d 2b X10 JY-6351G-02-250 5 6 7 U3B 4580M 3 2 1 U7A 4580M R7 4R7 R6 4R7 VR25 O10K C8 470P C39 22u/35V

29、R49 11K0 MIC 4 C41 47u/50V R52 3K60 R43 6K81 1/4W PH PWR C12 470P R45 6K81 1/4W C49 47u/50V C36 47P R50 11K0 R54 3K60 C14 22u/35V R40 51K1 R387 51K1 C37 470P 2 1 3 4 X11 SMC-6.02 R65 5K11 R83 5K11 C59 22P C53 22P R61 10K0 R57 27R C51 1000u/10V 3 2 1 U4A 4580M R60 10K0 R67 5K11 C57 22P R75 5K11 C60 2

30、2P C62 47u/25V R85 20K 3c 5e 1a 4d 2b X12 JY-6351G-02-250 5 6 7 U4B 4580M 3 2 1 U8A 4580M R13 4R7 R14 4R7 LINE IN4 1 2 3 GND 4 GND 5 VR7 W50K R77 4K7 R78 4K7 VR15 W50K R79 4K7 R80 4K7 VR23 W50K R81 4K7 R82 4K7 PAN VR31 W50K R9 4K7 R44 4K7 AMX-140 AMX140FX.S02 84 U2C 84 U8C 84 U1C 84 U9C 84 U6C C203

31、100n C204 100n +VCC -VCC C205 100n C206 100n 84 U7C C293 100n C294 100n C295 100n C296 100n C297 100n C298 100n C299 100n C300 100n 84 U10C 84 U11C C301 100n C302 100n C303 100n C304 100n 84 U12C C42 100n C63 100n 84 U5C 84 U3C 84 U4C C287 100n C288 100n C289 100n C290 100n C291 100n C292 100n NJM45

32、80M AMX-140 AMX140FX.S04 R136 1K3 PGND AMX-140FX (1/5) 3.Schematic Diagram 03_1 12345678 A B C D 87654321 D C B A AMX140FX.S01 Titel Size File: Date: Drawn By: Sheet RevisionModel No: 18-Aug-2005 KEVIN LIN. AMX140FX 52of AMX140FX VER030722 A2 3c 5e 1a 4d 2b X14 JY-6351G-02-250 EQ HI 12KHZ C135 18n(M

33、) 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 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 2K7 VR38 W50K AUX-1 R232 47K R254 4K7 C199 2.2u/50V R170 6K8 TR10

34、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 C116 47u/25V R313 4K7 AUX-2 LEVEL AUX-POST VR39A W50K VR39B W50K R311 5K1 R310 5K1 LEFT-BUS RIGHT-BUS BAL PGND AUX-PRE T R S RN TN 80HZ 2.5K LINE IN 5/6 3c 5e 1a 4d 2b X15 J

35、Y-6351G-02-250 T R S RN TN LEFT(MONO) RIGHT 3 2 1 U15A NJM4580M R108 10K0 C66 22P C117 47u/25V R105 10K0 C227 22P R101 18K C275 100P R102 18K C273 100P 5 6 7 U15B NJM4580M R109 10K0 C67 22P C118 47u/25V R106 10K0 C228 22P R103 18K C276 100P R104 18K C274 100P R107 10K0 R110 10K0 EQ HI 12KHZ C136 18n

36、(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 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 10K0 R98 10K0 R233 47K R245 22K 5 6

37、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) 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 3

38、3n(M) C152 33n(M) C177 12n(M) C169 18n(M) C127 47u/25V R317 2K7 VR45 W50K AUX-1 R235 47K R255 4K7 C200 2.2u/50V R173 6K8 TR12 BR 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 4K7 AUX-2 LEVEL AUX-POST VR4

39、6A W50K VR46B W50K R316 5K1 R315 5K1 LEFT-BUS RIGHT-BUS BAL PGND AUX-PRE 80HZ 2.5K EQ HI 12KHZ C138 18n(M) VR41B B50K R175 6K8 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) C1

40、78 12n(M) C170 18n(M) C126 47u/25V 80HZ 2.5K R121 10K0 R122 10K0 R234 47K R247 22K 5 6 7 U20B NJM4580M VR47B W50K C128 47u/25V 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 LEF

41、T(MONO) RIGHT 3 2 1 U18A NJM4580M R118 10K0 C68 22P C122 47u/25V R116 10K0 C229 22P R112 10K0 C279 100P R113 10K0 C277 100P 5 6 7 U18B NJM4580M R119 10K0 C69 22P C123 47u/25V R117 10K0 C230 22P R114 10K0 C280 100P R115 10K0 C278 100P R194 20K R195 20K J5 POST (PRE) J6 POST (PRE) R190 20K 1 2 3 GND 4

42、 GND 5 VR33 O10K LINE IN5 MIC 5 C91 47u/50V R127 3K60 R91 6K81 1/4W PH PWR C82 470P R72 6K81 1/4W C92 47u/50V C83 47P R126 3K60 2 1 3 4 X13 SMC-6.02 R144 5K11 R135 5K11 C43 22P C110 22P R129 10K0 R128 27R C99 1000u/10V 3 2 1 U13A 4580M R130 10K0 R165 5K11 C46 22P R176 5K11 C47 22P C56 47u/25V 5 6 7

43、U13B 4580M 3 2 1 U14A 4580M R41 4R7 R39 4R7 R178 4K7 R180 4K7 R181 4K7 R184 4K7 84 U14C 84 U20C 84 U13C 84 U18C C65 100n C64 100n +VCC -VCC C85 100n C84 100n 84 U19C C210 100n C211 100n C212 100n C215 100n C216 100n C217 100n 84 U17C 84 U15C 84 U16C C109 100n C201 100n C202 100n C207 100n C208 100n

44、C209 100n U1 U12=NJM4580M AMX-140FX (2/5) 03_2 12345678 A B C D 87654321 D C B A AMX140FX.S02 Titel Size File: Date: Drawn By: Sheet RevisionModel No: 18-Aug-2005 KEVIN LIN. AMX140FX 53of AMX140FX VER030722 A2 3c 5e 1a 4d 2b X18 JY-6351G-02-250 STEREO AUX LEFT 1 C265 100P 3c 5e 1a 4d 2b X19 JY-6351G

45、-02-250 RIGHT 1 C241 47u/25V R191 8K2 R241 22K C266 100P C239 47u/25V R94 8K2 R240 22K VR48B W50K VR48A W50K 3 2 1 U21A NJM4580M 5 6 7 U21B NJM4580M R318 56K C223 22P C243 47u/25V R302 8K2 R320 56K C269 22P C245 47u/25V R304 8K2 5 6 7 U25B NJM4580M 3 2 1 U25A NJM4580M R300 5K1 C259 22P LEFT-BUS RIGH

46、T-BUS C260 22P R306 6K34 R305 6K34 R301 5K1 C234 47u/25V C233 47u/25V 5 6 7 U26B NJM4580M 3 2 1 U26A NJM4580M R277 36K C264 22P R338 3K6 C235 47u/25V VR51B W50K MAIN MIX VR51A W50K R276 36K C263 22P R339 3K6 C236 47u/25V C237 47u/25V C238 47u/25V R90 10K0 R89 10K0 R329 120R 3c 5e 1a 4d 2b X24 JY-635

47、1G-02-250 R327 120R 3c 5e 1a 4d 2b X25 JY-6351G-02-250 R328 120R R326 120R MAIN OUT (BALANCED) LEFT RIGHT R342 1K R343 1K L(WHITE) R(RED) C251 47u/25V R188 20K 3 2 1 U23A NJM4580M R189 20K C282 22P C252 47u/25V R385 10K0 R309 5K1 C246 47u/25V R186 20K 5 6 7 U23B NJM4580M R187 20K C281 22P C248 47u/2

48、5V R381 10K0 R308 5K1 TAPE IN 1 2 3 SW9A PS-22E85L LEFT-BUS 4 5 6 P SW9B PS-22E85L RIGHT-BUS 2TK TO MIX 1 2 3 SW10A PS-22E85L R348 27K 2TK TO 3 2 1 U27A NJM4580M VR50B W50K C249 47u/25V R344 7K5 R278 36K C225 22P C250 47u/25V R382 10K0 3 2 1 U29A BA15218N 5 6 7 U29B BA15218N 3c 5e 1a 4d 2b X29 JY-63

49、51G-02-250 R337 120R R333 120R CTRL ROOM OUT C262 22P R384 10K0 R332 120R 3c 5e 1a 4d 2b X28 JY-6351G-02-250 R334 120R PHONES R331 120R R330 120R 4 5 6 P SW10B PS-22E85L R349 27K 5 6 7 U27B NJM4580M VR50A W50K C255 47u/25V R345 7K5 R279 36K C226 22P C256 47u/25V R86 10K0 3c 5e 1a 4d 2b X30 JY-6351G-02-250 3 2 1 U28A BA15218N 5 6 7 U28B BA15218N R336 120R R335 120R R383 10K0 C261 22P 84 U28C BA15218N 84 U29C BA15218N R347 47R R346 47R C253 47u/25V C254 47u/25V AUX RETURN 1