DBX 166AD Schematic电路图.pdf

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1、ECN#DATEECN#DATEDESCRIPTIONREVISIONDESCRIPTION |LINK P1VARIOUS CHANGES12.22.94- A0-1.17.95CHANGES R173 & R202 1M TO 39.2K 1% B0VARIOUS HOLES SIZES CHANGES IN PCB.-3.1.95 REV B14.11.95330REPLACE WIRE 36-0052 W/ 36-1140 B2ADD 2 16 PIN DIP SOCKETS5168/28/95 B3REMOVE 4 14-PIN IC SOCKETS64712.13.95 |0562

2、07B6.001 |056207B6.002 |056207B6.003 |056207B6.004 |056207B6.005 |056207B6.006 B4STANDARDIZE FILM CAPS7141.17.96 B5REMOVE C59 & C608424.3.96 B6CHANGE QT283332 TO QT3221029054.29.96 Thursday, October 21, 1999 056207B6.000B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 dbx Professional Products 8760 Sout

3、h Sandy Parkway Sandy, Utah 84070 B 06 Title SizeDocument NumberRev Date:Sheet of RadioFans.CN 收音机爱好者资料库 BALANCED OUTPUT CONTOUR OUTPUT GAIN VCA SYM PEAKSTOP LEVEL BALANCED INPUT SIDE CHAIN RMS TRIM CHANNEL 1 BYPASS GAIN TRIM OPTIONAL Thursday, October 21, 1999 056207B6.001B6 dbx 166A DUAL COMPRESS

4、OR/EXPANDER 80-6207 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 16 Title SizeDocument NumberRev Date:Sheet of IN1+ J105-2 IN1- J105-2 J105-10 IN1- IN1+ J105-10 +15V +15V +15V +15V +15V +15V +15V +15V -15V +15V -15V -15V -15V -15V -15V -15V +15V -15V -15V -15V -15V +15V -15

5、V J11 J322115 12 3 4 J12 J322110 2 5 4 1 3 6 J8 J322110 2 5 4 1 3 6 J9 J322114 12 3 4 J10 J322110 2 5 4 1 3 6 U25 UPC1252 1 3 5 6 2 47 8 D52 1N4148 D53 1N4148 D54 1N4148 R203 200 1% R159 49.9K 1% R160 49.9K 1% R165 5.1K R38 49.9K 1% R168 47 R169 150K R172 20.0K 1% R150 5.76K 1% R171 5.76K 1% R166 1.

6、62K 1% R148 49.9K 1% R145 49.9K 1% R147 4.32K 1% R37 1.5M R137 10.0K 1% R156 10.0K 1% R138 2.67K 1% R152 4.53K 1% R155 4.53K 1% R149 3.16K 1% R153 3.16K 1% R151 3.24K 1% R40 24.9K 1% R43 24.9K 1% R42 16.9K 1% R39 20 R120 499 1% R121 10M R162 2.00K 1% R163 20.0K 1% R167 2.00K 1% R164 2.00K 1% R87 3K

7、R41 560K R154 60.4 1% R158 60.4 1% R157 6.04K 1% R146 7.50K 1% SW5D 10 11 12 SW4D 10 11 12 SW4B SW440026 4 5 6 SW4C SW440026 7 8 9 SW4A 1 2 3 C49 22NPM25E1 P15 50K420222 1 2 3 P17 50K420222 1 2 3 P6 20K402121 1 2 3 C44 10PJ100M3 C46 47PJ100M3 C57 1000PJ100M3 C58 1000PJ100M3 C61 1000PJ100M3 C62 1000P

8、J100M3 C63 1000PJ100M3 C64 1000PJ100M3 D34 LEDG702062 D35 LEDG702062 U18A TL074 3 2 1 4 U18D TL074 12 13 14 U18B TL074 5 6 7 11 U18C TL074 10 9 8 U10C TL074 10 9 8 R139 33.2K 1% R161 33.2K 1% C3 .1MD3 U9 UPC1253 GND 3 OUT 7 CAP 6 V- 5 V+ 8 BIAS 2 IN 1 SYM 4 R97 22M SW5B SW440026 4 5 6 R170 100 1% R1

9、36 10.0K 1% R135 20.0K 1% C45 27PJC3 C35 27PJC3 U20B NE5532 5 6 7 8 U20A NE5532 3 2 1 4 U19A NE5532 3 2 1 4 U19B NE5532 5 6 7 8 P19 OMIT 50K420222 1 2 3 R173 OMIT 39.2K 1% P5 10K402122 1 2 3 C15 1M50E1 WA10 WA283449 1 2 WA8 WA283449 1 2 WA12 WA283449 1 2 J1A DIP16S J1 RC321155 1 2 3 4 5 6 7 8 9 10 1

10、1 12 13 14 15 16 C17 .0047J C5 .047J C19 .15J C4 .39J C20 .39J TP8 TP500317 1 2 J105-1 J105-5 J105-9 J105-13 J105-11 VCA CV LINK RMS 1 OUT RMS LINK GATE 1 CV COMP 1 CV PEAKSTOP THRESHOLD LINK IN1+ J105-2 IN1- J105-2 J105-10 IN1- IN1+ J105-10 RadioFans.CN 收音机爱好者资料库 THRESHOLD TRIM OPTIONAL COMPRESSOR

11、 THRESHOLD COMPRESSOR RATIO OVER EASY GATE RELEASE GATE THRESHOLD MODE CHANNEL 1 MODEMODE Thursday, October 21, 1999 056207B6.002B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 26 Title SizeDocument NumberRev Date:Sheet of +15V +15V

12、 +15V +15V +15V +15V -15V -15V -15V -15V -15V -15V +15V +15V -15V -15V +15V -15V -15V D27 1N4148 D38 1N4148 D40 1N4148 D39 1N4148 D37 1N4148 D28 1N4148 D33 1N4148 D25 1N4148 D26 1N4148 R61 2.49K 1% R44 7.15K 1% R53 200K 1% R35 1M R117 39.2K 1% R114 39.2K 1% R52 280K 1% R56 280K 1% R49 124K 1% R48 12

13、4K 1% R83 10.0K 1% R59 10.0K 1% R57 10.0K 1% R115 10.0K 1% R34 10.0K 1% R116 10.0K 1% R33 10.0K 1% R99 10.0K 1% R45 5.76K 1% R113 20.0K 1% R112 20.0K 1% R86 1.5M R122 1.5M R50 2.00K 1% R47 4.99K 1% R60 4.99K 1% R85 4.99K 1% R46 7.50K 1% R51 6.34K 1% R82 7.50K 1% R84 100 1% R54 523K 1% R55 523K 1% R1

14、19 210 1% R100 174 1% R123 1.74K 1% R58 412K 1% SW1A 1 2 3 SW3B SW440026 4 5 6 SW3D SW440026 10 11 12 SW3C SW440026 7 8 9 SW3A 1 2 3 P16 OMIT 50K420278 1 2 3 C32 2.2M50E1 C23 2.2M50E1 C22 2.2M50E1 P2 1M402094 1 2 3 P3 20K402121 1 2 3 P1 20K402121 1 2 3 Q3 2N4400 P4 20K402121 1 2 3 U12B TL074 5 6 7 1

15、1 U12A TL074 3 2 1 4 U12D TL074 12 13 14 U10B TL074 5 6 7 11 U10D TL074 12 13 14 U12C TL074 10 9 8 U10A TL074 3 2 1 4 SW1B SW440027 4 5 6 Q4 2N4402 U11C CA3046D 6 78 U11A CA3046D 2 31 U11B CA3046D 4 35 U11D CA3046D 9 1011 U11E CA3046D 12 1314 R88 OMIT 412K 1% R98 100K 1% C11 .047J C21 .22J TP2 TP500

16、317 1 2 TP3 TP500317 1 2 TP5 TP500317 1 2 COMP 1 CV GATE 1 CV J105-5 J105-1 J105-9 J105-13 J105-11 RMS 1 OUT G.R. METER LINK RadioFans.CN 收音机爱好者资料库 BALANCED OUTPUT BYPASS OUTPUT GAIN VCA SYM PEAKSTOP LEVEL BALANCED INPUT SIDE CHAIN STEREO COUPLE RMS TRIM STEREO COUPLE STEREO COUPLE CONTOUR CHANNEL

17、2 GAIN TRIM OPTIONAL Thursday, October 21, 1999 056207B6.003B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6153 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 36 Title SizeDocument NumberRev Date:Sheet of IN2+ J205-2 IN2- J205-2 IN2- IN2+ +15V +15V +15V +15V +15V +15V +15V -15V -15V

18、 +15V -15V -15V -15V -15V -15V +15V +15V -15V -15V -15V -15V +15V -15V J14 J322114 12 3 4 J15 J322110 2 5 4 1 3 6 J13 J322110 2 5 4 1 3 6 J17 J322110 2 5 4 1 3 6 J16 J322115 12 3 4 U26 UPC1252 1 3 5 6 2 47 8 D57 1N4148 D56 1N4148 D58 1N4148 R191 2.00K 1% R189 49.9K 1% R188 49.9K 1% R91 49.9K 1% R174

19、 49.9K 1% R177 49.9K 1% R204 200 1% R194 5.1K R201 20.0K 1% R195 47 R196 150K R192 20.0K 1% R200 5.76K 1% R179 5.76K 1% R198 1.62K 1% R199 2.00K 1% R176 4.32K 1% R90 1.5M R142 10.0K 1% R185 10.0K 1% R143 2.67K 1% R141 10.0K 1% R184 4.53K 1% R181 4.53K 1% R180 3.24K 1% R182 3.16K 1% R178 3.16K 1% R96

20、 24.9K 1% R93 24.9K 1% R95 16.9K 1% R92 20 R125 499 1% R134 10M R111 3K R32 10.0K 1% R94 560K R118 22M R186 6.04K 1% R187 60.4 1% R183 60.4 1% R36 100 1% R175 7.50K 1% SW8C 7 8 9 R101 100 1% SW8E SW440022 13 14 15 SW8A SW440022 1 2 3 SW7C SW440026 7 8 9 SW7A 1 2 3 SW7D 10 11 12 SW7B SW440026 4 5 6 C

21、52 22NPM25E1 P18 50K420222 1 2 3 P13 50K420222 1 2 3 P12 20K402121 1 2 3 C50 10PJ100M3 C51 47PJ100M3 C65 1000PJ100M3 C66 1000PJ100M3 C68 1000PJ100M3 C67 1000PJ100M3 C69 1000PJ100M3 C70 1000PJ100M3 J2 RC321155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SW8B SW440022 4 5 6 U21A TL074 3 2 1 4 U21B TL074 5

22、6 7 11 U21C TL074 10 9 8 U21D TL074 12 13 14 U14C TL074 10 9 8 D42 LEDG702062 D41 LEDG702062 U13 UPC1253 GND 3 OUT 7 CAP 6 V- 5 V+ 8 BIAS 2 IN 1 SYM 4 SW5C 7 8 9 SW5A SW440026 1 2 3 C9 .1MD3 R144 33.2K 1% R190 33.2K 1% R197 100 1% R140 20.0K 1% C40 27PJC3 C38 27PJC3 P20 OMIT 50K420222 1 2 3 U23B NE5

23、532 5 6 7 8 U23A NE5532 3 2 1 4 U22A NE5532 3 2 1 4 U22B NE5532 5 6 7 8 R202 OMIT 39.2K 1% P11 10K402122 1 2 3 C18 1M50E1 WA17 WA283449 1 2 WA13 WA283449 1 2 WA15 WA283449 1 2 J2A DIP16S R193 2.00K 1% C26 .39J C14 .39J C24 .15J C10 .047J C25 .0047J TP9 TP500317 1 2 J205-1 J205-3 J205-5 J205-11 J205-

24、13 J205-9 RMS LINK RMS 2 OUT GATE 2 CV COMP 2 CV VCA CV LINK PEAKSTOP THRESHOLD LINK IN2+ J205-2 IN2- J205-2 IN2- IN2+ THRESHOLD TRIM OPTIONAL COMPRESSOR THRESHOLD COMPRESSOR RATIO OVER EASY GATE RELEASE GATE THRESHOLD STEREO COUPLE MODEMODE MODE CHANNEL 2 STEREO COUPLE Thursday, October 21, 1999 05

25、6207B6.004B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 46 Title SizeDocument NumberRev Date:Sheet of +15V +15V -15V +15V +15V +15V +15V-15V -15V -15V -15V +15V +15V -15V -15V -15V +15V -15V -15V D43 1N4148 D29 1N4148 D30 1N4148 D

26、45 1N4148 D44 1N4148 D46 1N4148 D32 1N4148 D36 1N4148 R66 124K 1% R67 124K 1% R69 6.34K 1% R89 2.49K 1% R71 200K 1% R81 1M R130 39.2K 1% R133 39.2K 1% R70 280K 1% R74 280K 1% R68 2.00K 1% R65 4.99K 1% R78 4.99K 1% R108 4.99K 1% R129 20.0K 1% R128 20.0K 1% R110 1.5M R126 1.5M R77 10.0K 1% R75 10.0K 1

27、% R80 10.0K 1% R132 10.0K 1% R131 10.0K 1% R79 10.0K 1% R103 10.0K 1% R72 523K 1% R73 523K 1% R107 100 1% R105 7.50K 1% R104 174 1% R76 412K 1% R106 10.0K 1% R127 1.74K 1% R124 210 1% D31 1N4148 R62 7.15K 1% SW8D SW440022 10 11 12 SW8F SW440022 16 17 18 SW2A 1 2 3 SW2B SW440027 4 5 6 SW6C SW440026 7

28、 8 9 SW6A 1 2 3 SW6D SW440026 10 11 12 SW6B SW440026 4 5 6 P14 OMIT 50K420278 1 2 3 R63 5.76K 1% R64 7.50K 1% P8 1M402094 1 2 3 C6 2.2M50E1 C28 2.2M50E1 C29 2.2M50E1 P9 20K402121 1 2 3 P7 20K402121 1 2 3 Q5 2N4400 P10 20K402121 1 2 3 U16B TL074 5 6 7 11 U16A TL074 3 2 1 4 U16D TL074 12 13 14 U16C TL

29、074 10 9 8 U14B TL074 5 6 7 11 U14D TL074 12 13 14 U14A TL074 3 2 1 4 Q6 2N4402 U15E CA3046D 12 1314 U15D CA3046D 9 1011 U15C CA3046D 6 78 U15A CA3046D 2 31 U15B CA3046D 4 35 R109 OMIT 412K 1% R102 100K 1% C16 .047J C27 .22J TP1 TP500317 1 2 TP6 TP500317 1 2 TP4 TP500317 1 2 J205-5 J205-1 J205-3 J20

30、5-11 J205-9 J205-13 RMS 2 OUT COMP 2 CV GATE 2 CV G.R. METER LINK 2dB 4dB 6dB 8dB 10dB 12dB 15dB 20dB 25dB 30dB BELOW ABOVE SLOW ABOVE OVER EASY BELOW 2dB 4dB 6dB 8dB 10dB 12dB 15dB 20dB 25dB 30dB STEREO COUPLE BELOW ABOVE SLOW ABOVE OVER EASY BELOW BYPASS PEAKSTOP PEAKSTOP BYPASS CHANNEL 2 CHANNEL

31、1 CONTOUR Thursday, October 21, 1999 056207B6.005B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 56 Title SizeDocument NumberRev Date:Sheet of +15V+15V +15V +15V +15V +15V +15V +15V +15V+15V +15V +15V +15V +15V +15V -15V -15V -15V -

32、15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V +15V -15V +15V C1 .1MD3 C2 .1MD3 D6 LEDR702082 D7 LEDR702082 D5 LEDR702082 D8 LEDR702082 D1 LEDR702082 D2 LEDG702083 D11 LEDG702083 D10 LEDR702082 D9 LEDR702082 D14 LEDR702082 D13J LEDR702084 2019 D13I LEDR702084 181

33、7 D13H LEDR702084 1615 D13G LEDR702084 1413 D13F LEDR702084 1211 D4J LEDR702084 2019 D4I LEDR702084 1817 D4H LEDR702084 1615 D4G LEDR702084 1413 D4F LEDR702084 1211 D4E LEDR702084 109 D4D LEDR702084 87 D4C LEDR702084 65 D4B LEDR702084 43 D4A LEDR702084 21 D13A LEDR702084 21 D13B LEDR702084 43 D13C L

34、EDR702084 65 D13D LEDR702084 87 D13E LEDR702084 109 D21 1N4148 D20 1N4148 D18 1N4148 D23 1N4148 D19 1N4148 D22 1N4148 R4 2.00K 1% R5 2.00K 1% R6 2.00K 1% R7 2.00K 1% R8 2.00K 1% R9 3.01K 1% R28 100K 1% R27 4.99K 1% R26 4.99K 1% R10 4.99K 1% R17 1.5M R16 1.00K 1% R12 1.5M R11 1.00K 1% R2 3K R15 3K R2

35、5 3K R1 3K R29 3K R13 3K R30 3K R31 3K R14 3K R21 3K R19 3K R23 3K R24 10.0K 1% R20 10.0K 1%R3 2.00K 1% R22 560 R18 560 D17 1N5223 D24 1N5223 Q1 2N4402 U1A LM339 5 4 2 3 U1B LM339 7 6 1 U1C LM339 9 8 14 12 U8A LM339 5 4 2 3 U8B LM339 7 6 1 U8C LM339 9 8 14 12 U2A LM339 5 4 2 3 U2B LM339 7 6 1 U1D LM

36、339 11 10 13 U5A LM339 5 4 2 3 U5B LM339 7 6 1 U8D LM339 11 10 13 U7A LM339 5 4 2 3 U7B LM339 7 6 1 U7C LM339 9 8 14 12 U7D LM339 11 10 13 U6A LM339 5 4 2 3 U6B LM339 7 6 1 U6C LM339 9 8 14 12 U6D LM339 11 10 13 U5C LM339 9 8 14 12 U5D LM339 11 10 13 U4A LM339 5 4 2 3 U4B LM339 7 6 1 U4C LM339 9 8 1

37、4 12 U4D LM339 11 10 13 U3A LM339 5 4 2 3 U3B LM339 7 6 1 U3C LM339 9 8 14 12 U3D LM339 11 10 13 U2C LM339 9 8 14 12 U2D LM339 11 10 13 D3A LEDT702107 21 D3B LEDT702107 43 D3C LEDT702107 65 D12A LEDT702107 21 D12B LEDT702107 43 D12C LEDT702107 65 H2 PA82300 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 H1

38、PA82300 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Q2 2N4402 D15 LEDR702082 D16 LEDR702082 OPTIONAL Thursday, October 21, 1999 056207B6.006B6 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 66 Title SizeDocument NumberRev Date:Sheet of +24

39、V -15V +15V -15V +15V -15V +15V -15V +15V -15V +15V -15V +15V -24V +24V -24V +15V -15V +15V -15V J4 HDR322111 1 2 3 4 5 6 7 8 9 10 J3A HDR322116 1 J3B HDR322116 2 J3C HDR322116 3 SC5 SC340125 SC8 SC340125 SC7 SC340125 SC4 SC340125 SC3 SC340125 SC2 SC340125 SC6 SC340125 SC1 SC340125 C36 .1MD3 C37 .1M

40、D3 C12 .1MD3 C13 .1MD3 C39 .1MD3 C41 .1MD3 C8 .1MD3 C7 .1MD3 C54 .1MD3 C53 .1MD3 C56 .1MD3 C55 .1MD3 C48 .1MD3 C31 .1MD3 C34 .1MD3 C42 .1MD3 D55 1N4004 D47 1N4004 D48 1N4004 D49 1N4004 D50 1N4004 D51 1N4004 J7 ACR320057 D G N 1 2 3 MOV1 OMIT MOV130L10 21 U24 7815-V I 1 G 2 O 3 U17 7915-V I 2 G 1 O 3

41、 FC1 FC322089 1 2 FC2 FC322089 1 2 FC3 FC322089 1 2 FC4 FC322089 1 2 C47 33M25E1 C30 33M25E1 C43 1000S35E C33 1000S35E J6 QT283333 1 2 J5 QT283333 1 2 PCB1 80-6207-B WR1 W361140 12 HS1 HS704215 HS2 HS704215 TP7 TP500317 1 2 QT1 QT322102 1 056207b6 ?&l0?(s0P?(s15H?(s8V?(s0S?&l6D?&l66P?&l3E?&a7L?&a120

42、M?&l61FDOD Software Page 1 dbx 166A DUAL COMPRESSOR/EXPANDER 80-6207 Revised: April 29, 1996 056207B6.000 Revision: B6 Bill Of Materials April 29, 1996 12:54:27 Quan Reference Part SYMAN Description _ 20 C1,C2,C3,C7,C8,C9,C12, .1MD3 62-0060 .1 uF Cap 50V 20% Ceramic AXL C13,C31,C34,C36,C37,C39, C41,

43、C42,C48,C53,C54,C55, C56 4 C4,C14,C20,C26 .39J 56-0040 .39 uF Cap 50V 5% Stacked Metal Pet 394J ammo 4 C5,C10,C11,C16 .047J 56-0010 .047 uF Cap 50V 5% Stacked Metal Pet 473J ammo 6 C6,C22,C23,C28,C29,C32 2.2M50E1 60-0400 2.2 uF Cap 50V -20/+20% Elect. Rad, T&R 2 C15,C18 1M50E1 60-0044-01 1.0 uF Cap

44、50V -20/+20% Elect., T&R C&F 2 C17,C25 .0047J 56-0004 .0047 uF Cap 50V 5% Poly Film 472J ammo 2 C19,C24 .15J 56-0013 .15 uF Cap 50V 5% Stacked Metal Pet 154J ammo 2 C21,C27 .22J 56-0014 .22 uF Cap 50V 5% Stacked Metal Pet 224J ammo 2 C30,C47 33M25E1 60-0401 33 uF Cap 25V -20/+20% Elect. Rad, T&R 2 C

45、33,C43 1000S35E 60-0063 1000 uF Cap 35V -20/+80% Elect 4 C35,C38,C40,C45 27PJC3 62-0066 27 pF Cap 50V 20% Axial Monolithic 2 C44,C50 10PJ100M3 62-0063 10 pF Cap 100V 5% Ceramic AXL NPO 2 C46,C51 47PJ100M3 62-0064 47 pF Cap 100V 5% Ceramic AXL NPO 2 C49,C52 22NPM25E1 60-0402 22 uF Cap 25V -20/+20% El

46、ect. NP , T&R 12 C57,C58,C61,C62,C63,C64, 1000PJ100M 62-0061 1000 pF Cap 100V 5% Ceramic AXL NPO C65,C66,C67,C68,C69,C70 10 D1,D5,D6,D7,D8,D9,D10, LEDR702082 70-2082 Red Light Emitting Diode, T1 Encap, w/housing D14,D15,D16 2 D2,D11 LEDG702083 70-2083 Green Light Emitting Diode, T1 Encap, w/housing

47、2 D3,D12 LEDT702107 70-2107 G/Y/R Light Emitting Diode, T1 LMX, 3 pos 2 D4,D13 LEDR702084 70-2084 Red Light Emitting Diode, T1 Encap, 10 pos 2 D17,D24 1N5223 70-0041 1N5223 Diode Zener Glass, 1/2W, 50V, 10% 30 D18,D19,D20,D21,D22,D23, 1N4148 70-0002 1N4148 Diode Silicon Switching, 75 Volts PIV D25,D26,D27,D28,D29,D30, D31,D32,D33,D36,D37,D38, D39,D40,D43,D44,D45,D46, D52,D53,D54,D56,D57,D58 4 D34,D35,D41,D42 LEDG702062 70-2062 LED Green, T1 Case 6 D47,D48,D49