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Arcam C30 Service Manual

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Download this manual See also: Handbook
C30 Pre-AmpliÞer
Service
Manual
Issue 1.0
ARCAM
Bringing music & movies to life

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Summary of Contents for Arcam C30

  • Page 1 Service Manual Issue 1.0 C30 Pre-AmpliÞer ARCAM Bringing music & movies to life...

  • Page 2: Circuit Diagrams

    Contents List Circuit description Circuit diagrams o L958AY power supply board o L965AY pre-amp board o L928AY display board o L870AY phono board o L955AY multi-channel board Transformers o L923TX – 115/230VAC toroidal o L922TX – 100VAC toroidal o L907TX – 100VAC frame Exploded view diagram Mechanical &...
  • Page 3 REG 5 to create +/- 18V this is passed the already be familiar with the layout and pre-amplifier PCB via CON4. Another set of topologies of these boards. The C30 boasts a regulators REG 3 and REG 6 follow taking very much over-engineered power supply and...

  • Page 4: Tone Controls

    Pre-amp input card. Introduction. Input switching The pre-amp stage is a high-performance, Each of the inputs has a pair of diodes to the DC coupled design with microprocessor +/- 15v rails to prevent static spikes from control of input select, two independent tape causing damage to the CMOS multiplexors.
  • Page 5 The C30 also has a Balance XLR output stage that drives into the balanced line Z112B provides the 6dB of gain necessary to drivers IC103 and IC104. These line divers bring the nominal level of signal back to unity create a transformer-less balanced output.

  • Page 6: Display Board

    IC5 these will The H8 forms the heart of the C30 and takes include the last input used and tape settings on all major control functions including.

  • Page 7: Input Switching

    Multi channel input module (optional) used for communication these are seen on the circuit diagram as PB0, receive from Introduction ExpBrd and Transmit to ExpBrd. The multi input module an optional expansion When the host is communicating with the board that allows the existing Amp/Pre-amp onboard micro controller PB0 will be driven to become part of a surround system when low, otherwise the Data sent will be ignored.

  • Page 8: Simplified Block Diagram

    Output driver stage The output driver stage consists of four OPA2134 dual channel Op-Amps (IC400- IC403) each output for instance Front left channel takes one channel of the op-amp. The front left and front right channels are driven down into the Pre-amp board via Pins 1 and 2 of connector Con400 and is fed into the input switches of the Pre-amp boards multiplex on Pin 9 from this point the signal is...
  • Page 9 Phono stage SW100 switches between MM & MC. Two The Phono board is a simple single stage poles of the switch change between the RIAA amplifier. It consists of two channels of different loading required for each type of high gain amplification, switching...
  • Page 10 ITEM PART No. DESCRIPTION NOTES PSU and Control Circuit L958CT1_1.4_PSU and Control New Demod.Sch ITEM1 L958PB Blank PCB C30 Preamp PSU ITEM2 F006 Clip For SW Profile Heatsink Clip for HS1 ITEM3 F006 Clip For SW Profile Heatsink Clip for HS2...
  • Page 11 SOT-23 0805 0805 0805 0805 0805 0805 DRAWING TITLE 03_E215 15/07/03 R1 changed to VR37 EMCGND3 C30 Preamp 03_E191 27/06/03 RC5 remote bus demod fix 70R@100MHz DGND 23425 Filename: L958CT1 1.4 PSU and Control New Demod.Sch 03_E186 21/06/03 Renumbered Sorbothane...
  • Page 12 TO-126 R114 P133 P134 P145 0805 0805 0805 0805 DRAWING TITLE 03_E215 15/07/03 R1 changed to VR37 C30 Preamp 03_E191 27/06/03 RC5 remote bus demod fix 220UF 16V YK 23425 Filename: L958CT2 1.4 Audio1.Sch 03_E186 21/06/03 Renumbered Sorbothane P132 R115...
  • Page 13 Main signal path Power supply L965C2_1.2.SCH L965C3_1.2.SCH DRAWING TITLE C30 Preamp PCB PCB1 None to this sheet. Transistors Q301 & Q305 obsolete. ARCAM Filename: L965C1_1.2.PRJ 03_E291 10/10/03 Replaced by 4B5171 and 4B1930 respectively L937PB_1 Notes: 03_E221 18/07/03 Added sorbothane, changed 470pF FKP2 and 100uF Oscon part no.
  • Page 14 VCRIR R196 AUXR 0V_SIG VCR IN R 0V_SIG AUX R Z113C Z114C Z115C Z116C Z117C DRAWING TITLE 1K0 SM 1K0 SM C30 Preamp PCB TL072 SM TL072 SM +15V -15V R194 C163 +15V -15V R198 C166 0V_SIG 0V_SIG 0V_SIG 0V_SIG...
  • Page 15 2SC5171 D308 SP300 0V_PSU STAR POINT 4 BAS16W SM 0V_SIG 0V_HF 0V_MODULE 0V_SIG DRAWING TITLE C30 Preamp PCB Transistors Q301 & Q305 obsolete. ARCAM Filename: L965C3_1.2.SCH 03_E291 10/10/03 Replaced by 4B5171 and 4B1930 respectively Notes: 03_E221 18/07/03 Added sorbothane, changed 470pF FKP2 and 100uF Oscon part no.
  • Page 16 A32 FMJ DISPLAY PCB L928CT_B.1 L928CT_2_B.3.SCH MICRO FD_1 FD_2 FIDUCIAL FIDUCIAL FIX7 FIX2 FIX10 FIX5 FIX6 FIX13 FIXING HOLE 3.5 FIXING HOLE 3.5 FIXING HOLE 3.5 FIXING HOLE 3.5 FIXING HOLE 3.5 FIXING HOLE 3.5 CHASSIS 1 1N0 SM (BY SK3) 0V_D 1N0 SM 1N0 SM...
  • Page 17 SP10 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 PHONO/ MODE RECORD TONE DOWN ENTER POWER SELECT TUNER TAPE BC847B BC847B 10K SM 10K SM 10K SM 10K SM 10K SM 10K SM 10K SM...
  • Page 18 LEFT CHANNEL L870C2_2.0.SCH +15V LEFT IN LEFT OUT PHONO2HG 0V_SIG RIGHT CHANNEL 100N CD L870C3 2.0.SCH RIGHT N RIGHT OUT 0V_SIG AMPCT8 -15V 0V_SIG 0V_HF DRAWING TITLE PCB1 A85 PHONO STAGE - TOP LEVEL Update Box Circuit Diagram 23425 UPDATE_BOX L870PB_2 Notes 01_1070...
  • Page 19 +15V Q_102 C102 C104 100U SILMIC 100N PE C119 0V_HF 0V_SIG R100 R101 R102 330R MF 100R MF 100R MF 100P PP C101 TR100 TR102 BC556B TR103 1N0 PP BC556B BC556B C110 TR101 BC556B + C100 4N7 PP 22U EL C120 1N0 PP R109...
  • Page 20 +15V Q_202 C202 C204 100U SILMIC 100N PE C219 0V_HF 0V_SIG R200 R201 R202 330R MF 100R MF 100R MF 100P PP C201 TR200 TR202 BC556B TR203 1N0 PP BC556B BC556B C210 TR201 BC556B + C200 4N7 PP 22U EL C220 1N0 PP R209...
  • Page 21 ITEM PART No. DESCRIPTION NOTES ITEM100 L955PB BLANK PCB 7.1 MCH PCB ITEM101 E802AP PAD DAMPING 15x6x3MM SORBOTHANE Fit on top of IC308 ITEM102 E802AP PAD DAMPING 15x6x3MM SORBOTHANE Fit on top of IC309 ITEM103 E802AP PAD DAMPING 15x6x3MM SORBOTHANE Fit on top of IC310 ITEM104 E802AP...
  • Page 22 +15VA HS100A REG101 L7805CV +5VA P102 C130 C106 C102 C105 C100 330N R117 100R 220UF 100N TO-220 100N 470UF 100V 100V 6043PB MKS2 From A85/A32 Preamp Board 0805 0W125 MKS2 23C/W 0805 CON100 P101 C118 P112 PSU_GND C132 100P FIX100 MOLEX 100V 0805 P100...
  • Page 23 R200 R216 R202 R219 P220 P223 P226 P229 Mch1_FRight Mch2_FRight P200 100R P202 100R C204 C207 IC200A IC201A 0W125 0W125 0W125 0W125 0805 0805 0805 0805 100P 100P 100V Mch2_FLeft 100V 0805 0805 P204 SKT201 GOLD AGND AGND R205 P221 R218 P224 R204...
  • Page 24 C365 Note: Bulk decoupling capacitors on volume chips also bulk decouple the attached dc servos P306 100V FLeft_OP 0805 R311 P307 FRight_OP +5VA 0W125 +5VA 0805 +15VA +15VA P308 C333 C335 C305 C307 Sub_OP 10UF 10UF +15VA 100N 100N C304 C306 P309 C332...
  • Page 25 To A85/A32 Preamp Board 0805 0805 CON400 0W125 100V FLeft_OUT From Volume Control Circuit FLeft_OP FLeft_OP FRight_OUT R400 C410 FRight_OP P411 R401 AGND C419 Centre_OP 0W125 C401 0805 0805 100N 100V 10UF +15VA 0805 Sub_OP C412 IC400A PSU_GND P412 R418 SLeft_OP R404 0805...
  • Page 26 120mm di a max Tansformer Specfication For 115/230V C30 tansformer Connector Latch 40mm Acam Part Number L923TX 25mm Material Safety Specfication 1. Winding Wire to be Grade 2 (130C rating) to BS 603174 1995 2. Mylar Polyester Insulator 130C Rated LEADS EXIT FROM TOP 3.
  • Page 27 120mm dia max Connector Latch 40mm Transformer Specification For 100V C30 transformer 25mm Arcam Part Number L922TX Material Safety Specification 1. Winding Wire to be Grade 2 (130C rating) to BS 60317-4 1995 LEADS EXIT FROM TOP 2. Mylar Polyester Insulator 130C Rated...
  • Page 30 C30 Mechanical and packing parts list Part no Item no Description GENERAL MECHANICAL PARTS E186AY Rear Panel Assembly FMJ C30 E804MI Insulator Mains Diva A85 / P85 E212AY FMJ A32 Chassis Assembly E822PM1 Foot Black Alpha E850MC Heat Shunt Diva A85...
  • Page 31 C30 Mechanical and packing parts list Part no Item no Description SILVER CASE PARTS E847CP Cover Silver FMJ C30 E839AY FMJ Silver Volume Knob HA4V06S M Screw Torx M4x6MM Stainless Steel E185AY FMJ Silver C30 Fascia Complete Assembly Made up of the following parts :-...
  • Page 32 CAM Products 2000(TM): L928PB B.GTO...
  • Page 33 C30 Preamplifier display cct board L928AY issue B3.0 Designator Part Description 2C018 MLC 18P 50V X7R 10% SM 2C018 MLC 18P 50V X7R 10% SM 2C410 MLC 100N 50V X7R 10% SM 2C410 MLC 100N 50V X7R 10% SM 2C410...
  • Page 34 C30 Preamplifier display cct board L928AY issue B3.0 Designator Part Description LED3 3D001 LED GREEN 5MM LED4 3D001 LED GREEN 5MM LED5 3D001 LED GREEN 5MM LED6 3D001 LED GREEN 5MM LED7 3D001 LED GREEN 5MM LED8 3D001 LED GREEN 5MM...
  • Page 35 C30 Preamplifier display cct board L928AY issue B3.0 Designator Part Description 1A310 RES SM W4 2% 10K 1A310 RES SM W4 2% 10K 1A110 RES SM W4 1% 100R 1206 1A110 RES SM W4 1% 100R 1206 1A110 RES SM W4 1% 100R 1206...
  • Page 37 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description C100 2N747 Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 470UF 25V C101 2N747 Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 470UF 25V C102 2KA433 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 330N...
  • Page 38 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description C230 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C231 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C304 2M610 Capacitor Surface Mount Electrolytic Dia 5mm 10UF 50V...
  • Page 39 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description C376 2KA447 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 470N C377 2KA447 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 470N C378 2KA447 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 470N...
  • Page 40 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description IC305 5B2134 Opamp OPA2134UA SO-8 Package IC306 5B2134 Opamp OPA2134UA SO-8 Package IC307 5B2134 Opamp OPA2134UA SO-8 Package IC308 5A2310 IC Audio Digital Stereo Volume Ctrl IC309 5A2310...
  • Page 41 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description R225 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K R226 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K R227 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K R228 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K...
  • Page 42 C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0 Designator Part Description R442 1M000 Resistor 0805 Surface Mount 0.125W 1% 0R0 REG100 5D79L05S IC Voltage Regulator -5V L79L05ACD SO-8 Package REG101 5D7805 IC Voltage Regulator +5V L7805CV TO-220 Package RLY400...
  • Page 44 C30 Preamplifier PSU/main cct board L958AY issue 2.0 Designator Part Description 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V...
  • Page 45 C30 Preamplifier PSU/main cct board L958AY issue 2.0 Designator Part Description C117 2JA310 Capacitor SM 0805 X7R Ceramic 10% 100V 10N C118 2N747 Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 470UF 25V C119 2N510 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 1UF 50V...
  • Page 46 C30 Preamplifier PSU/main cct board L958AY issue 2.0 Designator Part Description 3BYV27 Diode SBYV27-200 DO-15 Package 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package D100 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package D101 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package...
  • Page 47 C30 Preamplifier PSU/main cct board L958AY issue 2.0 Designator Part Description 1M222 Resistor 0805 Surface Mount 0.125W 1% 2K2 1M222 Resistor 0805 Surface Mount 0.125W 1% 2K2 1M222 Resistor 0805 Surface Mount 0.125W 1% 2K2 1M222 Resistor 0805 Surface Mount 0.125W 1% 2K2 1M310 Resistor 0805 Surface Mount 0.125W 1% 10K...
  • Page 48 C30 Preamplifier PSU/main cct board L958AY issue 2.0 Designator Part Description REG3 5D317T IC Voltage Regulator ADJ LM317T TO-220 Package REG2 5D317T IC Voltage Regulator ADJ LM317T TO-220 Package REG5 5D337 IC Voltage Regulator Neg ADJ LM337T TO-220 Package REG6...
  • Page 50 C30 Preamplifier pre-amp cct board L965AY issue 1.2 Designator Part Description C100 2C210 Capacitor SM 1206 NPO Ceramic 50V 5% 1N0 C101 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P C102 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P...
  • Page 51 C30 Preamplifier pre-amp cct board L965AY issue 1.2 Designator Part Description C161 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P C162 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P C163 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P...
  • Page 52 C30 Preamplifier pre-amp cct board L965AY issue 1.2 Designator Part Description D114 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package D115 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package D116 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package...
  • Page 53 C30 Preamplifier pre-amp cct board L965AY issue 1.2 Designator Part Description R130 1A410 Resistor 1206 Surface Mount 0.25W 1% 100K R131 1A510 Resistor 1206 Surface Mount 0.25W 1% 1M0 R132 1A510 Resistor 1206 Surface Mount 0.25W 1% 1M0 R133 1A047 Resistor 1206 Surface Mount 0.25W 1% 47R...
  • Page 54 C30 Preamplifier pre-amp cct board L965AY issue 1.2 Designator Part Description R191 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0 R192 1A410 Resistor 1206 Surface Mount 0.25W 1% 100K R193 1A410 Resistor 1206 Surface Mount 0.25W 1% 100K R194 1A410 Resistor 1206 Surface Mount 0.25W 1% 100K...
  • Page 56 C30 Preamplifier phono cct board L870AY issue 2.0 Designator Part Description 2A410 CERD 100N 63V -20% +80% RA C100 2N622 ELST 22U 63V C101 2D210 PPRO 1N0 5% 63V RA C102 2P710AS ELEC 100U 25V SILMIC C103 2P710AS ELEC 100U 25V SILMIC...
  • Page 57 C30 Preamplifier phono cct board L870AY issue 2.0 Designator Part Description R117 1H522 RES MF W4 1% 2M2 R118 1H022 RES MF W4 1% 22R R119 1H022 RES MF W4 1% 22R R120 1H022 RES MF W4 1% 22R R121...
  • Page 58 ARCAM All parts can be ordered via spares@arcam.co.uk Pembroke Ave, Waterbeach, Cambridge, CB5 9PB, ENGLAND TEL: +44(0) 1223 203 203 FAX: +44(0) 1223 863 384...