YORKVILLE PM16-2 Service Manual Download

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U.S.A.

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

Voice: (716) 297-2920

Fax: (716) 297-3689

WORLD HEADQUARTERS

WEB ACCESS: http://www.yorkville.com

CANADA

Yorkville Sound

550 Granite Court
Pickering, Ontario

L1W-3Y8 CANADA

Voice: (905) 837-8481

Fax: (905) 837-8746

Quality and Innovation Since 1963

Printed in Canada

SERVICE MANUAL

PM16-2 & PM22-2

MODEL TYPE: YS1011

Summary of Contents for PM16-2

Page 1: ...ce 716 297 2920 Fax 716 297 3689 WORLD HEADQUARTERS WEB ACCESS http www yorkville com CANADA Yorkville Sound 550 Granite Court Pickering Ontario L1W 3Y8 CANADA Voice 905 837 8481 Fax 905 837 8746 Quality and Innovation Since 1963 Printed in Canada SERVICE MANUAL PM16 2 PM22 2 MODEL TYPE YS1011 ...

Page 2: ...ed or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped AVIS AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE N ENLEVEZ PAS LE COUVERT OU LE PANNEAU ARRIERE NE CONTIENT AUCUNE PIECE REPARABLE PAR L UTILISATEUR CONSULTEZ UN TECHNICIEN QUALIFIE POUR L ENTRETIENT CE PRODUIT EST POUR L USAGE À L INTÉREUR SEULEMENT Instr...

Page 3: ... VERT SNP ALT 47 6809 MJE15033 TO220 PNP TRAN TE 4 4487 _10K 10A AUD 60MM STEREO S01 2 4911 1 4W 2R2 5 T R RES 8 5018 1 4W 56K 5 MINI T R RES 20 3587 DPDT ROKR SW QUIK 250 AC PWR ON OFF 1 6873 MJE340 TO126 NPN TRAN TG 4 4489 _10K B LIN 60MM S01 12 4918 1 4W 3R3 5 T R RES 4 4586 1 4W 82K 5 MINI T R RES 22 3682 250 MALE PCB TAB REEL 22 6874 MJE350 TO126 PNP TRAN TG 4 3995 _20K 1B LIN 30MM STEREO DET...

Page 4: ... VERT SNP ALT 66 6809 MJE15033 TO220 PNP TRAN TE 4 4487 _10K 10A AUD 60MM STEREO S01 2 4911 1 4W 2R2 5 T R RES 8 5018 1 4W 56K 5 MINI T R RES 20 3587 DPDT ROKR SW QUIK 250 AC PWR ON OFF 1 6873 MJE340 TO126 NPN TRAN TG 4 4489 _10K B LIN 60MM S01 18 4918 1 4W 3R3 5 T R RES 4 4586 1 4W 82K 5 MINI T R RES 28 3682 250 MALE PCB TAB REEL 22 6874 MJE350 TO126 PNP TRAN TG 4 3995 _20K 1B LIN 30MM STEREO DET...

Page 5: ...0K B LIN Bass T B M 4537 P11B 10K B LIN Treble LVGND C21B 16V 33U R55B 1 8W 100R C29B 100V 100N C31B 16V 33U NO COM NC SW1B B 3522 Hi Pass DOWN UP R68B 1 4W 562R C7B 50V 22U R8B 1 4W MINI 4K99 C8B 50V 22U R66B 1 4W 562R R7B 1 4W MINI 10K0 R15B 1 8W 100R R6B 1 4W MINI 10K0 1 4W 1M R36B RAD R70B 1 4W MINI 3K NO COM NC SW2B B 3522 Mute DOWN UP 1N4148 D6B LED 6 R61B 1 4W 220K 1 4W 220R R28B MINI Q2B 5...

Page 6: ...3A B LED 6 1N4148 D14A C18A 16V 10U C24A 250V 4N7 R68A 1 4W 562R C13A 50V 1N R11A 1 8W FLMP 249R R69A 1 4W 4M7 RAD R13A 1 4W MINI 4K99 C16A 16V 33U C14A 100V 470P 1 2 3 U3 A TLO74CN U7 E 13 14 15 12 16 U7 B LM13600 4 V 11 V U4 E TO92 BC550C Q3A 5101 SW1A B 3522 DOWN UP Hi Pass C9A 16V 100U 1 4W 47K R29A RAD R42A 1 4W MINI 10K T B 4489 P1A M B LIN 10K Channel Fader NO COM NC SW3 A 3522 DOWN UP COP ...

Page 7: ...P Hi Pass 15V R40C 1 4W MINI 10K0 R44C 1 4W MINI 2K R43C 1 4W MINI 2K LVGND LVGND PFL_CTRL MON1 EFX1 15V LED 6 1N4148 D14C C18C 16V 10U C24C 250V 4N7 R68C 1 4W 562R C13C 50V 1N R11C 1 8W FLMP 249R R69C 1 4W 4M7 RAD C16C 16V 33U R13C 1 4W MINI 4K99 C14C 100V 470P 1 2 3 U11 A TLO74CN U14 E 13 14 15 12 16 U14 B LM13600 4 V 11 V U12 E TO92 BC550C Q3C 5101 C9C 16V 100U 1 4W 47K R29C RAD R42C 1 4W MINI ...

Page 8: ...D 1 4W MINI 10K R38D 1 4W MINI 100K LED 6 GRN LD1D Activity LVGND NO COM NC SW4D B 3522 DOWN UP Solo R40D 1 4W MINI 10K0 C20D 16V 33U RET00328 1 4W 10K0 R53D MINI 1 4W 10K0 R5D MINI 1 4W 10K0 R54D MINI 1 4W 10K0 R4D MINI R44D 1 4W MINI 2K R43D 1 4W MINI 2K LVGND LVGND LVGND P6D 4384 M B LIN 5K Mon2 P7D 4384 M B LIN 5K Mon1 Q1D 5102 TO92 BC560C R32D 1 4W 10K MINI R65D 1 4W MINI 27K C13D 50V 1N R14D...

Page 9: ...B 3522 DOWN UP Hi Pass 15V R40E 1 4W MINI 10K0 R44E 1 4W MINI 2K R43E 1 4W MINI 2K LVGND LVGND PFL_CTRL MON1 EFX1 15V LED 6 1N4148 D14E C18E 16V 10U C24E 250V 4N7 R68E 1 4W 562R C13E 50V 1N R11E 1 8W FLMP 249R R69E 1 4W 4M7 RAD C16E 16V 33U R13E 1 4W MINI 4K99 C14E 100V 470P 1 2 3 U19 A TLO74CN 13 14 15 12 16 U21 B LM13600 U21 E 4 V 11 V U23 E TO92 BC550C Q3E 5101 C9E 16V 100U 1 4W 47K R29E RAD R4...

Page 10: ...W MINI 10K R38F 1 4W MINI 100K LED 6 GRN LD1F Activity LVGND NO COM NC SW4F B 3522 DOWN UP Solo R40F 1 4W MINI 10K0 C20F 16V 33U RET00496 1 4W 10K0 R53F MINI 1 4W 10K0 R5F MINI 1 4W 10K0 R54F MINI 1 4W 10K0 R4F MINI R44F 1 4W MINI 2K R43F 1 4W MINI 2K LVGND LVGND LVGND P6F 4384 M B LIN 5K Mon2 P7F 4384 M B LIN 5K Mon1 Q1F 5102 TO92 BC560C R32F 1 4W 10K MINI R65F 1 4W MINI 27K C13F 50V 1N R14F 1 4W...

Page 11: ...562R 562R 47K 4M7 4M7 47K 4M7 4M7 47K 4M7 4M7 10K0 100K 10K 7V5 100K 10K 47K 10K0 100K 10K 7V5 100K 10K 47K 10K0 100K 10K 7V5 100K 10K 1K5 10K0 10K0 10K0 22M 220R 22U 50V 10K0 220R 22U 50V 10K0 220R 22U 50V 10K0 22U 50V 562R 249R 33U 16V 10K NE5532N LM13600 1N4148 10K B LIN 562R 562R 249R 10U 16V 10U 16V 33U 16V 562R 1N4148 10K NE5532N 82K LM13600 562R 562R 10U 16V 33U 16V 10U 16V 1N4148 82K NE553...

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Page 13: ...D6 W4 B 6 W4 C 6 W4 E 6 W4 F 6 1 4W 220R R230 GRN LD8 GRN LD10 C161 100N 50V 1 4W 220R R215 GRN LD12 GRN LD14 GRN LD16 YEL LD20 1 4W R203 1K RED LD24 1 4W R205 1K Q27 MPSA56 GRN LD1 LD5 GRN GRN LD7 LD9 GRN LD11 GRN GRN LD13 GRN LD15 YEL LD19 LD23 RED 1 4W R436 1K Q43 MPSA56 GRN LD4 C165 10N 50V 1 4W R204 1K 1 4W R386 220R MPSA56 Q42 1 4W 220R R211 RED LD22 YEL LD18 GRN LD3 1 4W 100K R229 LD21 RED ...

Page 14: ...D 10N 100K 220R GRN 1K MPSA56 GRN GRN GRN 220R 220R 220R 1K MPSA56 MPSA56 GRN YEL RED GRN MPSA56 GRN YEL RED GRN GRN GRN GRN GRN GRN YEL RED GRN GRN R204 X8 C161 R203 R236 X4 LD12 X3 R215 LD18 X1 LD24 C165 R229 X5 R323 LD2 R436 Q43 LD6 LD16 LD14 R211 X2 R230 R386 X6 R205 Q27 Q28 LD8 LD20 LD22 LD10 Q42 LD11 LD17 LD23 W4 LD1 LD3 LD5 LD4 LD15 LD13 LD19 LD21 LD9 LD7 U1 ...

Page 15: ...8393 8393 8393 8393 8392 4384 4384 4384 4384 4384 4537 4585 4537 4537 4566 EFX2 EFX1 AUX MON2 MON1 BASS SWEEP MID TREBLE GAIN P4A P5A P3A P6A P7A P8A P10A P9A P11A P12A PM16 22 M1119 PCB_POT_LIST 50V 100N C104 1 2 5532 U2 6 5 7 50V 100N C100 470R R39A 47K R81A 3K R70A 50V 100N C102 50V 100N C30B 50V 100N C34A 50V 100N C34B 50V 100N C10A 50V 100N C30A 50V 100N C101 DN UP MUTE SW2F 4 5 6 10K R42F 33...

Page 16: ...5C LEVEL P12G CW D 10K 05C LEVEL P12G CW D 50K B LOW P8G CW D 10K B LO MID P9G CW D 50K B LOW P8G CW D 10K B HI MID P10G CW D 10K B HI MID P10G CW D 10K B HIGH P11G 100V 100P C163G 100V 100P C164G 100V 1N5 C82G 100V 1N5 C83G 100V 2N2 C84G 50V 2N2 C85G SHEET OF YORKVILLE NAME PCBVER MODELS PM16 2 22 2 TITLE DATE 2 2 M1119V620 M1119V620 MAR 23 2010 STEREO_CHANNELS ACT SOLO GRN LD25G RED CLP MUTE LD2...

Page 17: ...L NOR NCR CL CR SW1C Hi Pass 3522 Alternate WHT NOL NCL NOR NCR CL CR SW1B Hi Pass 3522 Alternate WHT U18 NE5532N TLO74CN TL072 NOL NCL NOR NCR CL CR SW2C Mute 3522 Alternate WHT NOL NCL NOR NCR CL CR SW2D Mute 3522 Alternate WHT NOL NCL NOR NCR CL CR SW2E Mute 3522 Alternate WHT Mute 3440 WHT NOL NCL NOR NCR CL CR SW4D Solo 3522 Alternate WHT NOL NCL NOR NCR CL CR SW4E Solo 3522 Alternate WHT NOL...

Page 18: ...CKS PC 6473_C22A F_6N8 5N6_R70A F_1K2 PC 6244_RCA JK_HOLE_SIZE_070 059 R26_4K7 8K2_R37_10K 47K R71 R75_18K 33K_R81 R84_4K7 47K PC 5989_R122G H R135G H_4K7 47K_ FIXED_SHORT LD26H MOVED_PARTS_TO_ELIMINATE_SHORTS ROTATE_LEDS_FOR_AUTO_INSERT MOVED_R78F_AWAY_FROM_POT __PADS_THAT_ARE_CLOSE CHG_C33A F_FROM_220N_TO_33U 16V SECOND_PROTOTYPE FIRST_PROTOTYPE 2010 01 07 One missing pot pin added Added dashed ...

Page 19: ...384 4384 4384 4384 4537 TL072 4537 4537 4537 NOL NCL NOR NCR CL CR SW2C Mute 3522 Alternate WHT NOL NCL NOR NCR CL CR SW2D Mute 3522 Alternate WHT NOL NCL NOR NCR CL CR SW2E Mute 3522 Alternate WHT Mute 3440 WHT NOL NCL NOR NCR CL CR SW4D Solo 3522 Alternate WHT NOL NCL NOR NCR CL CR SW4E Solo 3522 Alternate WHT NOL NCL NOR NCR CL CR SW12H Solo 3522 Alternate WHT RING TIP SW TIP S L E E V E RING S...

Page 20: ... R401 47K 1 4W 47K R350 C138 100P 100V 1 4W 22K R390 1 4W R374 22K 1 4W 47K R375 AUXL SUB1 D LIN 4569 P36 A 10K EFX2L SUB1 1 4W 33K R223 D LIN 4569 10K P26 A 1 4W 33K R290 1 4W 2K R324 1 4W R298 4K7 GRN LD29 AUX ACTV SOLO EFX2 ACT SOLO LD44 GRN D4 4148 D23 4148 1 4W 4K7 R403 M B LIN 4566 AUX MON1 P33 A 10K TLO74CN U11 D 1 4W 10K R270 U5 D TLO74CN 1 4W 2K R347 1 4W 10K R241 1 4W 2K R373 1 4W 100K R...

Page 21: ...AD 7K5 R101B 1 8W 100R R102A 1 4W 680R R109B 1 4W MINI 15K R104B 1 4W MINI 82K R105B 1 8W 100R C69A 100V 47P R106A 1 4W MINI 620R M 3998 1B LIN P60D 20K 63 Hz R72D 1 4W RAD 82K R73D 1 4W RAD 100R C52C 63V 1U R74C 1 4W RAD 820R M 3998 1B LIN P61D 20K 125 Hz R76D 1 4W MINI 47K R75D 1 4W RAD 7K5 M 3998 1B LIN P61C 20K 125 Hz C54C 63V 680N R76C 1 4W MINI 47K R78C 1 4W 750R M 3998 1B LIN P62D 20K 250 H...

Page 22: ...C55D 680n C54D 680R R102D 5N6 C68D 82K R104D 100R R105D 2342 BLK 47K R192 33U 16V C101 100N C42 P34 4568 50K B LIN AUX Send C181 33U 16V J161 2K7 R246 TL072 U28 100K R487 BC560 Q42 LD38 5907 YEL AFL LD37 5908 GRN PFL NOL NCL NOR NCR CL CR SW6 AFL PFL 3522 Alternate WHT J183 J181 D1FX 5906 RED FX1 Clip 220R R495 MPSA13 Q45 4148 D7 10K0 R431 10K0 R198 J158 BC550 Q32 BC550 Q33 4148 D14 33K R253 220R ...

Page 23: ...EFX2 MON1 EFX2 MON2 EFX2 L R AUX MON1 AUX MON2 AUX_L R MON1 NO_KNOB NO_KNOB 8394 8394 8392 8394 8394 8392 8394 8394 8392 8394 JAN 2000 3998 3995 4566 4566 4569 4566 4566 4569 4566 4566 4569 4568 P60 68C D P60 68A P31 P30 P35 P24 P23 P26 P33 P32 P36 P19 PM16 22 M PCB_POT_LIST _EQ KNOB PART FUNCTION REF MODEL S AS_OF AUX SEND EFX1 SEND EFX2 SEND LEFT MASTER RIGHT_MASTER SELECT MODIFY HEADPHONE F F F...

Page 24: ...SEE PCB HISTORY P21 STYLE P25 STYLE P23 STYLE PT 3995 STYLE PT 4488 STYLE_S01 PT 3998 STYLE ...

Page 25: ... R105D 2342 BLK 47K R192 33U 16V C101 100N C42 P34 4568 50K B LIN AUX Send C181 33U 16V J161 2K7 R246 TL072 U28 100K R487 BC560 Q42 LD38 5907 YEL AFL LD37 5908 GRN PFL NOL NCL NOR NCR CL CR SW6 AFL PFL 3522 Alternate WHT J183 J181 D1FX 5906 RED FX1 Clip 220R R495 MPSA13 Q45 4148 D7 10K0 R431 10K0 R198 J158 BC550 Q32 BC550 Q33 4148 D14 33K R253 220R R302 R488 47R 1 0W CLR 33U 16V C65 J229 J227 J228...

Page 26: ... D3A 4148 R18A 1 4W MINI 47K 4148 D38B R81B 1 4W 133K MINI C28B 63V 2U2 R80B 1 4W 133K MINI D34B 4148 R81A 1 4W 133K MINI 4148 D35A 4148 D37A R82A 1 4W 5K6 MINI D34A 4148 C27A 63V 2U2 GND R111B 1 4W 22M 4148 D33B 4148 D32B 1 4W 10K0 R85B MINI 15V 4148 D32A 1 4W 10K0 R85A MINI 1 4W 3K9 R88B HIV R100A 1 4W 10M C30A 100V 22N R87A 1 4W 1K5 MINI R2A 1 4W MINI 10K0 R3B 1 4W MINI 10K0 63V C25A 100N TO92 ...

Page 27: ...F4905 TO220 Mid Tier R94A 5 0W 0R1 R93A 5 0W 0R1 BAV21 D72A G S D Q25A IRL2910 6966 TO220 Mid Tier MR854 D41A G S D Q24A IRL2910 6966 TO220 Hi Tier HIV 0 W26A HIV 16AWG BLU 0 W24A LOV 16AWG GRY D31A MR854 D30A MR854 LOV 0 W22A LOV 16AWG YEL 0 W20A MIDV 16AWG WHT Amp A D68A 4148 C18A 16V 33U R25A 1 4W MINI 1K0 R29A 1 4W 2K2 MINI 1 4W 15K R31A MINI D26A 4148 TO92 MPSA42 Q8A 5113 TO92 MPSA56 Q11A 510...

Page 28: ...B 16V0 D67B 0W5 COM2 _B D74B BAV21 1N5246B 16V0 D66B 0W5 D43B MR854 5 0W 0R1 R94B 5 0W 0R1 R93B COM2 _B D22B MR854 D31B MR854 LOV MR854 D21B MIDV AMP_OUTB D68B 4148 C18B 16V 33U D26B 4148 C11B 16V 100U TO92 MPSA42 Q8B 5113 1 4W 4K7 R40B MINI R73B 1 0W 10K0 BAV21 D52B R45B 1 4W 43K R58B 1 8W FLMP 220R0 BAV21 D72B MR854 D20B MR854 D41B 0 Function 16AWG YEL W14B P1B 4520 M Lin 10K VBE AMPB_SIGNAL R11...

Page 29: ... 100U R104A 1 4W 22K MINI 1 W17 A 4 3 W14 C 4 1 W14 A 4 E DENOTES EUROPEAN IN REF OUT MC7805CT TO220 6738 Watts U7 Pos 5v FANCTRL 6916 Q35 TIP107 TO220 Fan Ctrl 1 0W 1R R114 FLMP Q36B A 6467 NTC 10K 4 W17 D 4 4 W14 D 4 R106A 1 4W 27K MINI W16 A 2 W16 B 2 2 W14 B 4 FAN FAN1 FAN C_Type NTC 10K Q36A A 6467 W15 B 2 W15 A 2 Q30B 5105 TO92 MPSA13 C43B 16V 100U LOV D56B 1N4740A 1W0 10V0 R101B 1 4W 220K M...

Page 30: ...0C BC550C 47K 330N TL072 4K7 16V 100U 10K0 1 0W M R 8 5 4 M R 8 5 4 TO220 IRL2910 TO220 IRL2910 TO220 MJE15032 TO220 MJE15033 133K 22N 133K 1K 4148 100N 2N5551 1K8 10K 4148 100N 1R 1 0W 16V 100U 5 0W 0R1 5 0W 0R 1 RELAY 1A 10K0 22K Zinc MJ21195 Body MJ21196 Body MR 854 100R0 2U2 63V 220K LM13600N Zinc MJ21195 Body MJ21195 Body 16V 100U 5 0W 0R1 BC560C 4K7 M R8 54 RELAY 1A 5 0W 0R 1 3V0 MPSA42 Zinc...

Page 31: ...heatsink and board if necessary This prevents the heatsink from shorting other components 3 There are no eyelets or tabs on this board so there will be no mechanical drawing 4 No RTV under 5watt resistors or relays Bend leads straight no reliefs 5 PCBSA Break out board before testing 2 of 8760 Inner heatsink TO3 device PCB 3916 2 of 8761 Outer heatsink 2 of 8608 For two 081 heatsinks 8841 Inner he...

Page 32: ...RY PM16 22 2008 06 18 1 00p0 New board derived from m1190v9 2009 05 11 1 00p1 2nd proto Minor changes from p0 Test points added 16NOV2009 1V0 update score board size Changed all PS screw connections to new X pads Flipped pads on R94B R93A 90degree rotation Imported nodes added by Agilent software N1419 1460 Updated 2312 mtg holes 2009 12 18 v2 00 Changed TO220 parts to Pad Add thief pads to Q16B Q...

Page 33: ...72 4K7 16V 100U 10K0 1 0W M R 8 5 4 M R 8 5 4 TO220 IRL2910 TO220 IRL2910 TO220 MJE15032 TO220 MJE15033 133K 22N 133K 1K 4148 100N 2N5551 1K8 10K 4148 100N 1R 1 0W 16V 100U 5 0W 0R1 5 0W 0R 1 RELAY 1A 10K0 22K Zinc MJ21195 Body MJ21196 Body MR 854 100R0 2U2 63V 220K LM13600N Zinc MJ21195 Body MJ21195 Body 16V 100U 5 0W 0R1 BC560C 4K7 M R8 54 RELAY 1A 5 0W 0R 1 3V0 MPSA42 Zinc MJ21196 Body MJ21196 ...

Page 34: ... L 9 12 W53_ I 10 12 W53_ J 6 12 W53_ F 7 12 W53_ G 3 12 W53_ C 4 12 W53_ D 1 12 W53_ A 8 W3 H 8 6 W3 F 8 4 W3 D 8 3 W27 C 4 4 W27 D 4 2 W27 B 4 2 W3 B 8 4 W26 D 4 2 W26 B 4 R6 1 2W 6K8 S5 Thermal Breaker F77 2487 T7 0 1N5402 D7 C8 50V 8200U C2 50V 8200U C9 50V 8200U C3 50V 8200U R75 1 0W 4K7 C26 63V 10U W56 0 W19 2312 W18 2312 W15 2312 W14 2312 W11 2312 W10 2312 W51 2312 W50 2312 C20 35V 1000U R2...

Page 35: ...M M R L 3705 S3 B X Power Main R60 1 4W 10K0 X X R53 1 4W 42K2 X COM M R L 3705 S4 D X Power Aux LD4 YEL 6400 X 400W R51 1 4W 42K2 X C41 100V 68N X R42 1 4W 9K09 MINI X ZD1 1N5225B 3V0 0W5 Q13 5105 TO92 MPSA13 R58 1 4W 120K Q9 5104 TO92 MPSA56 Q11 5103 TO92 MPSA06 S T R J1 PHONES W14B_ SPKR 16AWG RED W15B SPKR 16AWG BLK 400V C24A 22N C24D 400V 22N R78C 2 0W 3R9 W14C_ SPKR 16AWG YEL 1 1_ J3D A 3628...

Page 36: ... 47R 1 0W 6K8 1 2W 22R 5 0W 120K 22N 400V 2 0W 3R9 120K 4K7 1 0W 100N 4148 4148 63V 10U 4V7 22N 400V 3R9 2 0W 22N 400V 3R9 2 0W 4148 1N5402 4148 1000U 35V 10K0 1 0W 3R3 80V 4700U 3V0 MPSA06 MPSA56 100N BUTTON WHT 2SD2560 120K 33K BUTTON 100U 16V 2 0W 3R9 1N5402 2 5 0 V 6 8 0 N 3R3 80V 4700U 8200U 50V 8200U 50V 8200U 50V 80V 4700U 80V 4700U 50V 8200U 8200U 50V 8200U 50V RE LAY 1A PC C 80V 4700U 820...

Page 37: ...to 2009 07 28 1 00p3 Chg W58 from eyelet to tab Disconnected S4 pin9 First Production Run v1 00 2009 11 23 X d parts in bi amp and max power circuits 2009 12 31 v2 00 Changed D23 4 5 6 to jumpers X123 4 5 6 Added 120K from jumper to ref gnd Moved holes on 2312 terminals Removed large pad on 2312 clearance hole Moved W37 PM16 2 PM22 2 2010 03 16 Rotated C25 PC 8054 Updated 2312 terminals with new h...

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