Phonic_DFX_256_Signal_Processor_Service_Manual 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 CONTENTS.2 PANEL LAYOUT.3 SYSTEM BLOCK DIAGRAM.4 PANEL PCB.5 PANEL CTL SCHEMATIC.6 PANELPCB- PARTLIST .78 ANALOG PCB.9 ANALOGINPUTSCHEMATIC.10 POWER SUPPLY SCHEMATIC.11 ANALOGPCB-PARTLIST .1213 PHONIC CORPORATIONPage 2 CONTENTS MAX860 / 1500 / 2500 SERVICE MANUAL REVERBPCB.14

2、 REVERBDSP SCHEMATIC.15 REVERBCONTROL SCHEMATIC.16 INPUTBOARDPCB- PARTLIST .1718 MISCELLANEOUS ITEMS- PART LIST.19 POWERREQUIREMENT CLASSIFICATION.20 EXPLODEDVIEW.21 RadioFans.CN 收音机爱 好者资料库 POWER AC 10V FOOT SWITCH PATTERN SELECT 1 16 2 3 4 5 6 7 10 11 12 13 14 15 OUTPUTINPUT RLRL(MONO) EFFECT MODE

3、01ROOM 02HALL 01PLATE 04CHAMBER 05GATED REVERB 06REVERSE REVERB 07MONO DELAY 08OFFSET DELAY 03 09MONO TAPPED DELAY 10MULTI-TAP SIGNAL RED:PEAK DP 6.DGND 5.D+5V 4.BIT_3 3.BIT_2 2.BIT_0 1.BIT_1 3.OUT_R 2.AGND 1.OUT_L AIN_R_ AGND AIN_L_ AGND MIX_R_ AGND MIX_L_ SIG_R SIG_L AGND R_IN# AGND L_IN# AGND R_I

4、N AGND L_IN INPUT LR MIXDOWN UP ENCODER OUTPUT PANEL PCB PANEL PCB PHONIC CORPORATIONDFX256 SERVICE MANUALPage5 L_IN R_IN# SIG_R SIG_L R_IN L_IN# 1 2 3 4 5 6 7 8 9 10 JP201 HEADER 10 L_IN R_IN# SIG_R SIG_L R_IN L_IN# 5 6 4 U204B 4081 R238 220 1 2 3 U204A 4081 D204A LED*2 D204B LED*2 SIG_R SIG_R D209

5、 1N4148 D201 1N4148 R201 100 -9v 3 2 1 8 4 U206A 4558 R252 220K AIN_R R250 10K INPUT PCB +9v R228 100K C201 0.22uF/25V SIG_L +5V 12 13 11 U204D 4081 D203A LED*2 D203B LED*2 (SIG/PEAK) 8 9 10 U204C 4081 R237 220 MIX_L MIX_R AIN_R# MIX_L MIX_R AIN_R# 1 2 3 4 5 6 7 8 JP202 HEADER 8 AIN_L# 1 2 3 JP203 H

6、EADER 3 OUT_L OUT_R DP AIN_L# OUT_L OUT_R +5V PEAK_ R230 10K R231 10K Q206 2SA1015 R229 10K R247 100 R248 33K C205 2.2uF/25V SIG_L D210 1N4148 D202 1N4148 R232 100 C206 0.22uF/25V R233 100K 5 6 7 U206B 4558 R255 220K AIN_L R253 10K D+5V +5V Q205 2SC1815 R236 10K F 1 G 1 F1 1 8 1 7 1 6 1 5 1 4 1 3 1

7、2 1 1 1 0 123456789 U203 DUAL 7 SEG A 1 B 1 F 2 A 2 B 2 A2 F2 G2 A1 B1 D+5V B2 G1 AGND DGND BIT_7 BIT_6 BIT_5 BIT_4 PEAK_ STEP DOWN UP 1 2 3 4 5 6 7 8 JP205A HEADER 8 C 1 D P 1 E 2 D 2 G 2 C 2 D P 2 C2 DP2D2 E2C1 DP1D1 R215 330 E 1 D 1 E1 DP1 DP2 R234 330 R235 330 Q207 2SC1815 DP R249 10K STEP R207

8、10K 4 5 6 U202B 74HC00 9 10 8 U202C 74HC00 R246 10K 12 13 11 U202D 74HC00 C202 0.1uF R211 1.5M C204 100uF/10V Q202 2SA1015 D+5V R206 10K D+5V R244 22K BC202 0.1uF R243 33K R241 10K D208 1N4148 D207 1N4148 R242 10K C203 100uF/10V 1 2 3 U202A 74HC00 R209 2.7K Q203 2SA1015 R245 47K Q201 2SC2240 R208 10

9、 D+5V R210 27K BIT_7 BIT_6 BIT_5 BIT_4 10/CLK 1 19/OE 11 11 2 12 3 13 4 14 5 15 6 16 7 17 8 18 9 F0 12 F1 13 F2 14 F3 15 F4 16 F5 17 F6 18 F7 19 VCC 20 G 10 U205 16V8 B1 C1 B2 F2 A2 D2 E2 A1 G2 C2 R222330 R221330 R226330 R214330 R220330 R219330 R218330 R217330 R216330 BIT_1 BIT_0 BIT_2 BIT_3 D+5V DG

10、ND 1 2 3 4 5 6 JP205B HEADER 6 F1 D1 E1 R225330 R223330 R224330 Q204 2SC1815 D+5V R227 10K D+5V D+5V BC203 0.1uF UP R239 10K SW201 UP D205 1N4148 R213 2.2K R202 10K R205 10K R203 10K R204 10K D+5V 2 3 4 51 U201 4 BIT ENCODER BIT_0 BIT_1 BIT_2 BIT_3 D206 1N4148 DN R240 10K SW202 DOWN D+5VD+5V BC201 0

11、.1uF Page6PHONIC CORPORATIONDFX256 SERVICE MANUAL PANELCTL SCHEMATIC PANEL PCB Page PANEL PCB PHONIC CORPORATIONDFX256 SERIVCE MANUAL 7 PANEL PCB- PART LIST Ref.Phonic Part No.Specifications 290-02060-200-0PCB VERBIFEX-B 片 PANEL 382-20005-010-0TINNER WIRE 5.0MM D0.6 382-20007-510-0TINNER WIRE 7.5MM

12、D0.6 382-20010-010-0TINNER WIRE 10MM D0.6 BC201-203.C202042-10426-050-0C/C2 0.1MF M 50V 5 T C203.204030-10718-0A0-0E/C 100MF Z 10V 6*11 5 T C205030-22558-0A0-0E/C 2.2MF Z 50V 5*11 T D203.204100-00060-030-0LED LEG2062 D205-208.209.210090-02000-020-0DIODE 1N4148 T JP201212-10100-280-010P WAFER/P 80MM

13、UL1007#24 P=2.5MM JP202212-10080-460-08P WAFER/P 80MM UL1007#24 P=2.5MM JP203212-10031-010-63P WAFER/P 80MM UL1007#24 P=2.5MM JP204, JP205212-10140-110-014P WAFER/P 100MM 8+6 UL1007#24 PH=2.5 LED*2615-20082-620-0LED HOUSING LED3-8 Q201120-00001-010-0TRAN 2SC2240-BL TOSHIBA Q202.203.206121-00000-200-

14、0TRAN. 2SA1015 GR TOSHIBA Q204.205.207120-00000-800-0TRAN. 2SC1815 GR TOSHIBA R116.117.130.131000-47206-400-0CF RES 4.7K J 0.0625W T R128.136000-24206-400-0CF RES 2K4 J 0.0625W T R129.137000-20306-400-0CF RES. 20K J 0.0625W T R202-207.239-242.246.227. 229-231.236.249 000-10306-400-0CF RES. 10K J 0.0

15、625W T R208000-10006-400-0CF RES. 10 J 0.0625W T R209000-27206-400-0CF RES. 2K7 J 0.0625W T R210000-27306-400-0CF RES. 27K J 0.0625W T R211000-15506-400-0CF RES 1M5 J 0.0625W T R213000-22206-400-0CF RES. 2K2 J 0.0625W T R214-226.234.235000-33106-400-0CF RES. 330 J 0.0625W T R237.238000-22106-400-0CF

16、 RES. 220 J 0.0625W T Page PANEL PCB PHONIC CORPORATIONDFX256 SERIVCE MANUAL 8 PANEL PCB- PART LIST Ref.Phonic Part No.Specifications R243.248000-33306-400-0CF RES. 33K J 0.0625W T R244000-22306-400-0CF RES. 22K J 0.0625W T R245000-47306-400-0CF RES. 47K J 0.0625W T R247000-10106-400-0CF RES. 100 J

17、0.0625W T SW201.202210-02101-040-0PSH/SW SK12030-0102-4S-NB-3 TACT SW*2615-20076-620-0TRAN WASHER TRC-601 U201210-16000-010-0ENCODER SDB161P VB15.5F-1-4-16-16PC U202171-00000-020-0CMOS IC 74HCT00 U203100-02000-060-07 SEG/LED LDD5062-20(GREEN) U204172-00001-600-0CMOS IC CD4081BE RCA U205177-02000-311

18、-0GAL IC 16V8D-15LP LATTICE U205211-11202-002-0IC/S 20P 9.8*25MM (NARROW) VR101-103023-10320-080-0D.ROT/VR 10KA 15MM P CN201 CN202 R144 CN203 R143 + C134 JK103 JK102 R147 C127 C126 C135 ECB Q101 C136 R146 R148 + C151 D102 . . K101 D104 JK101 + C142 + C141 JK104 D103 + C144 R138 R126 R233 R232 R255 D

19、202 + C206 R253 R43 R45 R228 + C201 D201 R201 + C128 + C129 + BC107 + BC108 BR107 + C117 BR108 R141 R124 C124 C139 R142 R125 R140R123 U104 + C122 U206 ECB Q103 R250 R252 BR105 R133C132 + C131 R132 R135 C133 C130 R134 R118 C118 + C119 R119 R120 C120 C121 R121 C115 C116 + C143 R42 C123 C138 R44 ECB Q1

20、02 U103 C106 C105 + C137 CN204 R139 R122 + BC103 + BC104 BR103 + BC101 + BC102 BR106 BR102 BR101 BR104 R113 R106 C114 R115 C108 C104 R107 R127 R105 + C111 + C103 R114 R108 R112 + C113 R111 R110 C110 C109 + BC106 U102 + C107 U101 R103 C102 C112 R101 R102 + BC105 R104 R109 C101 +C125 + C140 IN_RIN_L O

21、UT_LOUT_R L_IN AGND R_IN AGND L_IN# AGND R_IN# AGND SIG_R SIG_L OUT_L AGND OUT_R DP # AIN_L AGND AGND # AIN_R AGND MIX_R AGND MIX_L GND V- V+ DGND REV_O_R REV_O_L AIN_R AGND AGND AGND AGND AIN_L Page9PHONIC CORPORATIONDFX256 SERVICE MANUAL ANALOG PCB ANALOG PCB 1 2 3 4 5 6 7 8 CN202 HEADER 8 L_IN AG

22、ND AGND AGND R_IN# AGND SIG_R MIX_L AGND MIX_R AGND AGND R_IN L_IN# 1 2 3 4 5 6 7 8 9 10 CN201 HEADER 10 AIN_R# AIN_L# DP VP+_4 BC107 10uF/16V BC108 10uF/16V C136 0.1uF C135 0.1uF BR107 22 VP+_3+9V BC105 10uF/16V BC106 10uF/16V VP+_2+9V C127 0.1uF C126 0.1uF BR105 22 +9V BC103 10uF/16V BC104 10uF/16

23、V C115 0.1uF C116 0.1uF BR103 22 VP+_1 BC101 10uF/16V BC102 10uF/16V BR101 22 AGND DGND +9V C105 0.1uF C106 0.1uF -9V JK101 PHONEJACK LINE_IN_L MONO VP-_1 L_S R102 1M R101 1M C101 0.1uF R103 10K C102 100P BR102 22 VP+_1 -9V 3 2 1 8 4 U101A 4558 C107 4.7uF/50V BR104 22 VP-_2 L_INL_IN# -9V VR101A 10KA

24、 INPUT R105 47K BR106 22 VP-_3-9V C103 4.7uF/50V R106 100K AIN_L VP-_4 3 2 1 8 4 U102A 4558 VP+_2 BR108 22 SIG_L OUT_L OUT_R AGND 1 2 3 CN203 HEADER 3 1 2 3 4 5 6 7 8 9 10 11 12 13 CN204 HEADER 13 AGND AGND AGND REV_O_L REV_O_R V+ AGND AIN_L AIN_R DP DP R104 39K C104 100pF VP-_2 R107 3.3K R108 1K C1

25、08 0.015uF PANEL PCB VP-_1 JK102 PHONEJACK LINE_IN_R MONO R_S R109 1M C109 0.1uF R110 1M R111 10K C110 100P C113 4.7uF/50V 5 6 7 U101B 4558 R_INR_IN# VR101B 10KA INPUT R127 47K C111 4.7uF/50V R113 100K R114 3.3K R115 1K AIN_R 5 6 7 U102B 4558 R112 39K C112 100pF L_IN R_IN# SIG_R SIG_L MIX_L GND V- R

26、_IN L_IN# L_IN R_IN# SIG_R SIG_L MIX_L R_IN L_IN# MIX_R OUT_L OUT_R L_S R_S L_O R_O LL_O RR_O AIN_R# AIN_L# MIX_R OUT_L AGND OUT_R L_S R_S L_O R_O LL_O RR_O AIN_R# AIN_L# R124 2.2K C124 0.001uF R125 10K R12339K C123330pF VP-_4LL C114 0.015uF VR102A 10KA MIX_L R128 2.4K R117 4.7K VP+_3 C128 4.7uF/50V

27、 C121 6800pF C119 4.7uF/50V R119 10K R120 3.3K R121 15K REV_O_L C118 0.01uF R118 150 AIN_L C120 1500pF VP-_3 3 2 1 8 4 U103A 4558 C117 4.7uF/50V MIX = R129 20K AIN_L# R116 4.7K OUTPUT = OUT_L VR103A 10KA R122 10K R142 10K C139 0.001uF VP+_4 3 2 1 8 4 U104A 4558 C122 4.7uF/50V R141 2.2K LL_O R138 10K

28、 R126 1K C125 4.7uF/50V L_O JK103 PHONEJACK LINE_OUT_L R_O JK104 PHONEJACK LINE_OUT_R RR_O R144 10K C140 4.7uF/50V R143 1K 5 6 7 U104B 4558 C138330pF R14039K C137 4.7uF/50V R139 10K RR OUTPUT = OUT_R VR103B 10KA MIX = MIX_R VR102B 10KA R136 2.4K R131 4.7K C133 6800pF C134 4.7uF/50V 5 6 7 U103B 4558

29、R135 15K C132 1500pF R134 3.3K R133 10K C131 4.7uF/50V REV_O_R C130 0.01uF R132 150 AIN_R C129 4.7uF/50V R137 20K AIN_R# R130 4.7K Page10PHONIC CORPORATIONDFX256 SERVICE MANUAL ANALOG INPUT SCHEMATIC ANALOG PCB V+ R44 2.2K Q102 2SC1815 R42 10 1/4W +9V C141 10uF/25V D103 Z9.1V C143 100uF/16V V- R45 2

30、.2K Q103 2SA1015 R43 10 1/4W -9V AGND C142 10uF/25V D104 Z9.1V C144 100uF/16V L_O R_O L_O R_O D102 1N4148 R148 22 1/4W L_S R_S LL_O RR_O K101 RELAY DPDT L_S R_S LL_O RR_O V- Q101 2SA1015 R146 10K C151 10uF/25V R147 22K V- Page11PHONIC CORPORATIONDFX256 SERVICE MANUAL POWER SUPPLY SCHEMATIC ANALOG PC

31、B Page ANALOG PCB PHONIC CORPORATIONDFX256 SERIVCE MANUAL 12 ANALOG PCB- PART LIST Ref.Phonic Part No.Specifications 290-02060-100-0PCB VERBIFEX-A INPUT 382-20005-010-0TINNER WIRE 5.0MM D0.6 382-20007-510-0TINNER WIRE 7.5MM D0.6 382-20012-510-0TINNER WIRE 12.5MM D0.6 BR101-108382-20010-010-0TINNER W

32、IRE 10MM D0.6 C101.105.106.109.115.116.126. 127.135.136 042-10426-050-0C/C2 0.1MF M 50V 5 T C103.107.111.113.117.119.122. 125.128.129.131.134.137.140 030-47558-0A0-0E/C 4.7MF Z 50V 5*11 T C104.112.102.110042-10124-050-0C/C2 100PF J 50V T C108.114046-15305-060-0M/C 0.015UF K 50V T C123.138042-33125-0

33、50-0C/C2 330PF K 50V T C124.139046-10204-060-0M/C 0.001MF J 50V 5 T C143.144030-10728-0A0-0E/C 100MF Z 16V 6*11 T C151.141.142030-10638-0A0-0E/C 10MF Z 25V 5*11 T C221.226030-22439-0A0-0E/C 0.22MF B 25V 5*11 T CN21211-10101-080-010P WAFER/S 2532-10 180DEGREE CN22211-10081-060-08P WAFER/S 2532-08 180

34、 DEGREE CN23211-10031-171-03P WAFER/S TJC3-3A PH=2.5MM 180 DEGREE CN24211-10131-020-013P WAFER/S A2501WV2-13P P=2.5MM 180 DEGREE D102.201.202090-02000-020-0DIODE 1N4148 T D103.104090-01912-000-0ZEN/DIODE 9.1V J 0.5W FAI JK101-104211-01602-301-06D3/J PJB0661-6R K101,OEG076-00522-000-0RELAY OVR-SH-205

35、L 1A125VAC 1.25A 24VDC Q101.103121-00000-200-0TRAN. 2SA1015 GR TOSHIBA Q102120-00000-800-0TRAN. 2SC1815 GR TOSHIBA R101.102.109.110000-10506-400-0CF RES. 1M J 0.0625W T R104.112.123.140000-39306-400-0CF RES. 39K J 0.0625W T R105.127000-47306-400-0CF RES. 47K J 0.0625W T Page ANALOG PCB PHONIC CORPOR

36、ATIONDFX256 SERIVCE MANUAL 13 ANALOG PCB- PART LIST Ref.Phonic Part No.Specifications R106.113.228.233000-10406-400-0CF RES. 100K J 0.0625W T R107.114.120.134000-33206-400-0CF RES. 3K3 J 0.0625W T R118.132000-15106-400-0CF RES.150J 0.0625W T R119.122.125.133.138.139.142. 144.146.103.111.250.253 000-

37、10306-400-0CF RES. 10K J 0.0625W T R121.135000-15306-400-0CF RES. 15K J 0.0625W T R124.141.44.45000-22206-400-0CF RES. 2K2 J 0.0625W T R126.143.108.115000-10206-400-0CF RES. 1K J 0.0625W T R147000-22306-400-0CF RES. 22K J 0.0625W T R148000-22026-400-0CF RES. 22 J 0.25W T R201.232000-10106-400-0CF RE

38、S. 100 J 0.0625W T R252.255000-22406-400-0CF RES. 220K J 0.0625W T R420.430000-10026-400-0CF RES. 10 J 0.25W T U101-104.206160-00017-900-0IC NJM4558LD JRC C319 X1001 U5 U1 U6 IC1 IC2 U4 D301 R309 D302 C31 D2D3 D4 R9 R1 R10 R310 R314 R307 C302 R304 C303 C301 C305 R302 R303 R300 R301 R305 C306 R320 R3

39、15 R316 R318 R313 R312 R311 C316 C308 R2 R319 - + D1 R6R7R8 JP204 C307 C4 C3 C310 C1 C317 C320 C304 C300 C312 C313 C329 C8 BC1 BC2 BC3 BC4 BC5 C332 C327 C330 C331 C311 C318 C315 C309 Q301 R317 C324 C322C323 C5 C6 C7 C326 Q300 C33 3217 161 U2 R308 R306 Q302 U3 D300 F1 RP1 SW1 CN205 SS RS S R TTS JK2

40、JK1 C32 U7C2 O I C U8 U9 290-06256-000-0 DFX-256 EFF_DSP REV.PCB 74HC393 AK4520AVF CN205 54 53 T1A 250V DP V+ 14.DGND 13.D+5V 12.BIT3 11.BIT2 10.BIT0 9.BIT1 8.UP 7.DN 6.STEP 5.PEAK 4.BIT4 3.BIR5 2.BIT6 1.BIT7 141 7805 74HC374 16V8 74HC30 74HC74 74HC14 16MHZ 27C512 ART FX DSP2 SRAM 128K*8 32K*8 V- GN

41、D DGND AGND REVR AGND REVL AGND AINR AGND AINL 17 7 75 74 33 32 12 111 Page14PHONIC CORPORATIONDFX256 SERVICE MANUAL REVERB PCB REVERB PCB AIN_L AIN_R REV_L REV_R DP DP 1 2 3 4 5 6 7 8 9 10 11 12 13 JP204 HEADER 13 AGND AGND AGND AGND D+5V Q302 2SC1740 R316330K R318 10K DGNDDGND C329 1uF/50V Q300 2S

42、C1740 R315 1K MUTO D+5V DGND R314 1K C328 0.1uF DGND LRCK SDOUT SDIN R306 2.2K ANALOG AREA R304 2.2K REV_L MUTE MUTE AIN_R AIN_L REV_R R300 1K R301 220 C300 10uF/16V C301 0.1uF VA R305 22K R307 22K C302 10uF/16V C309 0.1uF C310 10uF/16V C311 0.1uF C312 10uF/16V AA16 AA15 AA14 AWRE_ AA12 AA13 AA07 AA

43、16 75 AA15 76 AA14 77 AWRE 78 AA12 79 AA13 80 AA07 81 AA08 82 AA06 83 AA09 84 VDD 1 GND 2 AA05 3 AA11 4 AA04 5 AROE 6 AA03 7 AA10 8 AA02 9 AD7 10 AA01 11 A A 0 0 1 2 A D 6 1 3 A D 0 1 4 A D 5 1 5 A D 1 1 6 A D 4 1 7 A D 2 1 8 A D 3 1 9 R E S E T 2 0 B B R O W N 2 1 G N D 2 2 V D D 2 3 X T A L O 2 4

44、X T A L I 2 5 O V F L 2 6 E N C 1 A 2 7 E N C 1 B 2 8 E N C B A 2 9 E N C 2 B 3 0 E D C L K 3 1 M C L K 3 2 PPSEL 33 MCEQ0 34 ED2 35 ED3 36 ED1 37 ED4 38 ED0 39 ED5 40 EA0 41 ED6 42 VDD 43 GND 44 ED7 45 EA1 46 EA3 47 EA2 48 EA5 49 EA4 50 EA7 51 EA6 52 MUTE 53 H S T W E 5 4 M U T E A D 5 5 M U T O 5

45、6 H S T A C K 5 7 H S T R E Q 5 8 H S T O E 5 9 I R A 8 6 0 H S T A 8 6 1 S A P S O 6 2 C L R B R 6 3 G N D 6 4 V D D 6 5 F S Y N C I 6 6 S C L K O 6 7 S D I N 6 8 S D O U T 6 9 F S Y N C O 7 0 T E S T 7 1 F S Y N C A 7 2 Q _ R E Q 7 3 L M 3 1 1 7 4 U3 ART FX DSP2 EA6 EA7 MMUT EA4 EA5 EA2 EA3 DGND E

46、A1 EA0 DGND A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CS 20 OE 22 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 A13 26 PEN/A14 27 VPP/A15 1 U4 27C512 DGND ED0 ED1 V+ V- V+ V- ED7 ED6 ED5 ED4 ED3 ED2 EA15 EA14 EA13 EA6 EA7 EA4 EA5 EA2 EA3 EA12 EA11 EA10 EA9 EA8 EA1 EA

47、0 ED7 ED6 ED5 ED0 ED4 ED1 ED3 ED2 MCEQ0 PPSEL DGND AA08 AA06 AA09 AA05 AA11 AA04 AROE_ AA03 AA10 AA02 AA01 D+5V VD MCLK VD DGND CODEC_RST C313 10uF/16V C314 0.1uF C315 0.1uF VD DGND C303 0.1uF C307 0.1uF VREFH 1 AINR+ 2 AINR- 3 AINL+ 4 AINL- 5 VA 6 AGND 7 DIF0 8 DIF1 9 LRCK 10 SCLK 11 SDTI 12 SDTO 13 SMUTE 14 DEM0 15 DEM1 16 MCKI 17 VD 18 DGND 19 PD 20 CMODE 21 AOUTL 22 AOUTR 23 VCOM 24 U9 AK4522VF VA R302 1K R303 220 C304 10uF/16V C305 0.1uF C306 10uF/16V C308 0.1uF VA R308 2.2 SCLK LRCK SDOUT DGND D+5V MUTE R309 4.7 R321 10K R322 10k Q301 2SC174