Yorkville Sound CR12 manuals
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When we buy new device such as Yorkville Sound CR12 we often through away most of the documentation but the warranty.
Very often issues with Yorkville Sound CR12 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Stereo Amplifier Yorkville Sound CR12 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Stereo Amplifier on our side using links below.
Yorkville Sound CR12 Service Manual
11 pages 1.44 Mb
CR 12WORLD HEADQUARTERS U.S.A. Yorkville Sound Inc. WEB ACCESS: http://www.yorkville.com Quality and Innovation Since 1963 SERVICE MANUAL CR12INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS. 2 CAUTION:Owner's Manual REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. Read Instructions: Packaging:Keep the box and packaging materials, in case the unit needs to be returned for service. Warning:When using electric products, basic precautions should always be followed, including the following: Power Sources: Hazards: Power Cord: Service: INSTRUCTIONS RELATIVES AU RISQUE DE FEU, CHOC LECTRIQUE, OU BLESSURES AUX PERSONNES. AVIS:CONSULTEZ UN TECHNICIEN QUALIFIE POUR L'ENTRETIENT. Veuillez lire le manuel: Emballage:Conservez la boite au cas ou l'appareil devait tre retourner pour rparation. Warning:Alimentation: Hazard: Cordon d'alimentation: Service: IMPORTANT SAFETY INSTRUCTIONSCR12.xls Parts List 10/4/2002 M1183.SCH_DATABASE_HISTORY# DESCRIPTION OF CHANGEVER#DATE MODEL(S):- CR12 POWER SUPPLY OUTPUT P.C.B. 3 CR12-M1183 INPUT/POWER SUPPLYP:\M1183SCH.PRNP:\M1183SCH.PRNNORTH AMERICANTURN ON/OFF EUROPEAN SUPPLY 4 VCDGUIDE METAL BRACKET YSL# BRIDGE PCB BEND AND CUT ADD GOOP #8828 ADD GOOP #8828 #8800 1 FOR CE C26 USE 680NPSGND VM+ VH+ LEADS DOWN M1183 LEADS DOWN M1183.PCB_DATABASE_HISTORYPILOT_RUN PC#6532_MOVE_C15,U1,C4,C5,C6 R37,R39,R99,R100_TO_#4629 PC#6549_MOVE_BOARDS_APART_MOVE_SOME TRACES PC#6548_MOVE_JUMPERS_X1,X2,J9 2.00 3.00 4.00 APR/24/02 MAY/21/02 JUN/18/02 JUL/04/02 # DESCRIPTION OF CHANGEVER#DATE BLANK SIZE=15.900" X 9.300" M1183-4.00 MODEL(S):- M1183 VH-GND CHANNEL ACHANNEL B RING RINGTIP TIP PRODUCTION NOTES #8800 TERMINAL STRIP #3405 SPACER #3741 PCB CUT LEADS BEND LEADBEND LEAD LEADSBLANK SIZE=15.900" X 9.300"# T FROM AMP A (mounted under heatsink) BIAS ADJUSTMENT: ADJUST TRIM POT R115 FOR WHEN THE AMPLIFIER IS COLD Current Limit OUTPUT Dc Protection 3mV ACROSS TEST POINTS 9 @ 10 M1184.SCH_DATABASE_HISTORY# DESCRIPTION OF CHANGEVER#DATEPILOTRUN CORRECTIONS 1.10 APR/22/02 39 2 11 10 TESTPOINT: OUTPUT**ALL UNMARKED DIODES ARE 1N4148** AMP.A CLIP SENSE CR12 MODEL(S):- BOTTOM CHANNEL AU:\M1184V11.PRNWIRES FROM POWER SUPPLY LOW VOLTAGE SUPPLIES 5 CR12-M1184CHANNEL A VOLTAGE AMPLIFIER A OUTPUT AMPLIFIER POWER AMPLIFIER BOARDCurrent Amplifier Temperature Sensor 6 VCDM1184-3.00 PCB MECH M1184-3.00 ASSEMBLY M1184-3.00 2 OZ. COPPERBOTH SIDES OF THE MICA PAD #3815 MICA FINAL TORQUE AFTER HEATSINK HAS HEATSPREADER HEATSPREADER MOUNTING HARDWARE FOR TO3 OUTPUTSINITIAL TORQUE FOR TO-3S IS 8 INCH/LB COOLED FROM WAVE SOLDER IS 6 INCH/LB Q33A,Q32A Q28A,Q29A #3846 THERMO PAD #8742 4-40X 3/8" BOLT #8608 SPACER #8760 6-32 KEPS NUT DO NOT CUT THE LEADS OF Q48A BEND THEM FLAT ALONG TRACE ADD MICA GREASE NOTE ALL 22u/50V MUST BE PT#5260 M1184SILKSCREEN M1184-3.00 BLANK SIZE=18.650" X 9.900" 2 OZ. COPPERPCB MECH M1184-3.00 CR12 PUT MI GRE SE BETWEEN HE TSINKS CRITICAL ASSEMBLY NOTE 1 HEAT SINKS MUST BE INSPECTED BY PRODUCTION ENGINEERING BEFORE ASSEMBLY#8861 4-40X 3/8" BOLT #8761 BOLT #8861 4-40X 3/8" BOLT #8667 SHOULDER WASHER #3846 THERMO PAD Q26A,Q27A Q1A,Q2A,Q6 Q34A,Q35A #8741 4-40 X 1/2" BOLT T220 TYPE DEVICE T220 TYPE DEVICE T126 TYPE DEVICE TO3PBL DEVICE PRODUCTION NOTES#3797 THERMO PAD TO-3 TRANSISTOR MICA GREASE IS REQUIRED ON BLANK SIZE=18.650" X 9.900" METAL# DESCRIPTION OF CHANGEVER#DATE CR12BIAS ADJUSTMENT: ADJUST TRIM POT R115 FOR WHEN THE AMPLIFIER IS COLD Current Limit TESTPOINT:Dc Protection 3mV ACROSS TEST POINTS 9 @ 10 **ALL UNMARKED DIODES ARE 1N4148** AMP. B CLIP SENSEO/PGND_B # 1 CORRECT_R155B,C43B 1.10 APR/23/02 2 3 4 5 6 7 8 9 10 39 4 6 8 11 10 7 5 1B BP- BP+ MODEL(S):- M1185.SCH_DATABASE_HISTORY OUTPUT TOP CHANNEL BU:\M1185V11.PRNCHANNEL B VOLTAGE AMPLIFIER 2 OHM LIMIT SENSE 7 CR12-M1185B OUTPUT AMPLIFIER POWER AMPLIFIER BOARDCurrent Amplifier 8 VCDSOLDERSIDE M1185-2.00 DRILL DETL M1185-2.00 CR12 M1185 TOP PCB 2 OZ. COPPERTAB WIRE COLOURSOUTPUT +TAB 1 OUTPUT - BLK EY 3 EY 4 VM+EY 5 VH-BLU VH+ YEL EY 6 BOTH SIDES OF THE MICA PAD #3815 MICA FINAL TORQUE AFTER HEATSINK HAS HEATSPREADER HEATSPREADER MOUNTING HARDWARE FOR TO3 OUTPUTSINITIAL TORQUE FOR TO-3S IS 8 INCH/LB COOLED FROM WAVE SOLDER IS 6 INCH/LB Q33A,Q32A Q28A,Q29A #3846 THERMO PAD #8742 4-40X 3/8" BOLT 4#8608 SPACER #8760 6-32 KEPS NUT DO NOT CUT THE LEADS OF Q48A BEND THEM FLAT ALONG TRACE NOTE ADD MICA GREASE BETWEEN HEATSINKS M1185.PCB_DATABASE_HISTORYCR12_TOP_PCBPILOTRUN PC#6533_MOVE_Q32B,Q33B,Q34B,Q35B CORRECT_SPACING_C44B,C46B,C3B,C7B, C15B 2.00 APR/23/02 # DESCRIPTION OF CHANGEVER#DATE M1185 1 2 OZ. COPPERM1185-2.00BLANK SIZE=17.500" X 9.900" DRILL DETL M1185-2.001W 2K7 Q36B Q37B Q40B Q41B Q42B Q43B PART# MODEL(S):- NOTE ALL 22u 50V MUST BE PT#5260 CRITICAL ASSEMBLY NOTE 1 HEAT SINKS MUST BE INSPECTED BY PRODUCTION ENGINEERING BEFORE ASSEMBLY#8861 4-40X 3/8" BOLT #8761 BOLT #8861 4-40X 3/8" BOLT #8667 SHOULDER WASHER #3846 THERMO PAD Q26A,Q27A Q1A,Q2A,Q6 Q34A,Q35A #8741 4-40 X 1/2" BOLT T220 TYPE DEVICE T220 TYPE DEVICE T126 TYPE DEVICE TO3PBL DEVICE PRODUCTION NOTES#3797 THERMO PAD TO-3 TRANSISTOR MICA GREASE IS REQUIRED ON VM-WHT EY 2 W1 TO W2 4" LONG BLK WIRE 18AWG RED RED BLANK SIZE=17.500" X 9.900"
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