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Arcam DiVA A80 Service Manual
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Arcam DiVA A80 Service Manual

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Download this manual See also: Handbook
DiVA
A80 Amplifier
P80 Power Amplifier
Service
Manual
Issue 1.0
ARCAM
ARCAM
Bringing music & movies to life
Bringing music & movies to life

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Summary of Contents for Arcam DiVA A80

  • Page 1 DiVA Service Manual Issue 1.0 A80 Amplifier P80 Power Amplifier ARCAM ARCAM Bringing music & movies to life Bringing music & movies to life...
  • Page 2 L916TX – 115/230VAC toroidal o L917TX – 100VAC toroidal o L907TX – 100VAC frame Exploded view diagram o A80 Mechanical & packing parts list o A80 o P80 Circuit board silk screen o A80 o P80 Circuit board parts list o A80/P80 combined...

  • Page 3: Circuit Description

    T2.0A (20mm) FS204 (D.C inline) T2.0A (20mm) The A80 Pre-amp has inputs for Phono, Aux, CD, Tuner, AV, DVD and Tape. All inputs except Phono have a simple The standby Transformer TX200 continuously powers resistor-capacitor 340Khz low pass filter to remove any the digital circuitry (+4.8v(D)) when power is...
  • Page 4 Into the power amp stages but from this point we can The transistors found at locations TR400 and configure the unit as a separate Pre amp/Power amp TR401/TR402 form the PNP Wilson mirrors and TR416 by moving the jumpers to the pin 2 and 3 of Con 304 and TR411/TR417 form the Wilson NPN current mirrors, and Con 305, and then remove the jumpers at Con emitter degeneration is provided by R405, R406 (+) and...
  • Page 5 Driver bias + ZDT 6758 4AZDT758 operations. Within the A80 integrated amplifier these tasks are performed by the H8 type micro at circuit location IC602, Fig 4a. SAP NY/PY output driver information. within the P80 power amp version the tasks are performed...
  • Page 6 IC600 this will allow us to identify the channel If you want to turn the A80 into a separate Pre-Power amp that is “flagging the fault”. (make the Line out become a Pre-amp out and make the...
  • Page 7 Fig 9. Major components pin identification. 74HC14 ZDT 758/ZDT 6758 1=Collector 1 2=Collector 1 3=Collector 2 4=Collector 2 5=Emitter 2 6=Base 2 7=Emitter 1 8=Base 1 TLO 72 FMMT 497/597 NJM2114 BC849/BC859 1=Base 2=Emitter 3=Collector DG408DY BAV99 Diode package 1=Anode 2=Cathode 3=Common connection 74HC00D...

  • Page 8: Technical Specifications

    Technical Specifications. Continuous Power output Both channels driven 8 ohms 20 Hz – 20 kHz = 65 Watts Single Channel driven 4 ohms 20 Hz – 20 kHz = 80 Watts Distortion 8 ohms at 80% power output 1Khz = 0.008% Input stage specifications.
  • Page 9 FD101 G P PRECISION ANNOTATION R100 GENERAL NOTES +45V_L Power Amp Left This is the Master Schematic for A80 (L943AY) and P80 (L944AY) PCB L943C4_5.1.SCH +45V_L RLY100A assemblies. Any changes to the schematics in this document must be FIX100 FIX101...
  • Page 10 -15V(A) TO-220 HS202A DRAWING TITLE 03_E264 09 Sept 03 Remove EMC can from around IEC inlet. 6043PB A80/P80 Power Supplies 23C/W 03_E230 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm D211 BAS16 23425 Filename: L943C2_5.1.SCH...
  • Page 11 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. * - Default jumper setting on pins 2 & 3; fit jumper A80/P80 - Power Amp Left 03_E230 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm on pins 1 &...
  • Page 12 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. * - Default jumper setting on pins 2 & 3; fit jumper A80/P80 - Power Amp Right 03_E230 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm on pins 1 &...
  • Page 13 ANNOTATION A80 ITEMS COMMON ITEMS P80 ITEMS +4.8V(D)_DISP (Fitted on A80 only) (Fitted on both A80 & P80) (Fitted on P80 only) TO MAIN PCB - SHEET6 R802 R803 C802 NOTE: 100N CON800 MOLEX 52044 0W125 0W125 MOUNTED All resistor / small capacitor...
  • Page 14 DRAWING TITLE 03_E264 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. A80/P80 Trig, RC5 & P80 Sig Det 03_E230 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 23425 Filename: L943C7_5.1.SCH...
  • Page 15 ITEM600 8K004 Con Jumper Socket 0.1IN Gold Blue Fit on CON601 after programming; NF ON P80 IC603-1 8S028N IC Skt 28PIN 0.3IN Socket for IC603; NF on A80 OUTPUT_L NF ON A80 +45V_R ANNOTATION DC OFFSET DETECTION 0.38Hz OSCILLATOR OUTPUT_R...
  • Page 16 1/2 pad placed on top of C386, C387, C388 & C389 (NF on P80) C334 +15V(A) 100V FIT ON P80 ANNOTATION D302 0805 A80 Line Out / A80 PreAmp Out / R318 C322 100K TAPE OUTPUT SELECT TAPE OUTPUT P80 Pre Out Loop...
  • Page 17 Load Off-Load Current 100mA Trough Voltage 6800uF Max Off-Load Peak Voltage 0V (Black + White) -Vout DRAWING TITLE DiVA A80 Power Transformer Filename: L916TX_1.0.Sch Notes: A & R Cambridge Ltd. 03_E059 21 Feb 03 Production Issue Pembroke Avenue ECO No.
  • Page 18 Load Off-Load Current 100mA Trough Voltage 6800uF Max Off-Load Peak Voltage 0V (Black + White) -Vout DRAWING TITLE 100V DiVA A80 Power Transformer Filename: L917TX_1.0.Sch Notes: A & R Cambridge Ltd. 03_E118 17 April 03 PRODUCTION RELEASE Pembroke Avenue ECO No.
  • Page 20 AROUND PRIMARIES INTO SUB-PANEL INTO CONNECTOR ON PCB x3 ONTO LED'S...
  • Page 21 5 Way Amp CT 100MM L916TX 115/230 VAC Toroid transformer L917TX 100 VAC only Toroid transformer L943AY A80 Main cct board & Display cct board PCB Assembly BLACK CASE PARTS E845CPB Cover Black DiVA A80/P80 HA4V06B M Screw Torx M4x6MM ST BLK...
  • Page 22 P80 Mechanical and packing parts list Part No Description GENERAL MECHANICAL PARTS E917HK Heatsink Diva A80 Amp - Using E908EX, A85 E139AY A80 Chassis Assembly E879PM Foot Black Diva HA3V06A M Screw Torx P/H M3x6MM ST ZP HA4A12B M Screw Pan Supa M4x12MM ST BLK...
  • Page 23 A80 L943AY_5.0.0 ASSEMBLY DRAWING A80 Default Jumper Settings (circled on drawing): Rubber 13/16 inch ID O-rings to be placed around main power supply capacitors C228, C229, C230 CON300, CON301 NOT FITTED and C231. O-rings to be situated midway between PCB and top of cap.
  • Page 24 CON304, CON305 NOT FITTED CON306, CON307 NOT FITTED One whole sorbothane piece to be fitted to top of each of output relays RLY100 and RLY101. CON400, CON500 BIAS SET (AT ARCAM) CON601 NOT FITTED CON602 NOT FITTED CON700, CON701 FITTED CON702 PINS 1 &...
  • Page 25 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description C101 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C200 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V...
  • Page 26 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description C330 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P C331 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P C332...
  • Page 27 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description C401 2L047 Capacitor SM 0805 NPO Ceramic 5% 100V 47P C402 2L110 Capacitor SM 0805 NPO Ceramic 5% 100V 100P C403...
  • Page 28 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description C608 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C609 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C610...
  • Page 29 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description C817 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C818 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N C819...
  • Page 30 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description D215 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package D300 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package...
  • Page 31 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description DZ401 3CW322V Zener Diode 0.25W Surface Mount BZX84C22V SOT-23 Package DZ402 3CW33V9 Zener Diode 0.25W Surface Mount BZX84C3V9 SOT-23 Package DZ403 3CW33V9 Zener Diode 0.25W Surface Mount BZX84C3V9 SOT-23 Package...
  • Page 32 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description ITEM104-2 F232 13/16 inch O-Ring ITEM104-3 F232 13/16 inch O-Ring ITEM104-4 F232 13/16 inch O-Ring ITEM203-1 F006 Clip For SW Profile Heatsink...
  • Page 33 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R221 1M000 Resistor 0805 Surface Mount 0.125W 1% 0R0 R300 1M210 Resistor 0805 Surface Mount 0.125W 1% 1K0 R301 1M210 Resistor 0805 Surface Mount 0.125W 1% 1K0...
  • Page 34 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R360 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K R361 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K R362 1M322 Resistor 0805 Surface Mount 0.125W 1% 22K...
  • Page 35 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R421 1M447 Resistor 0805 Surface Mount 0.125W 1% 470K R422 1M110 Resistor 0805 Surface Mount 0.125W 1% 100R R423 1H122 Resistor Metal Film 0.25W 1% 220R...
  • Page 36 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R522 1M110 Resistor 0805 Surface Mount 0.125W 1% 100R R523 1H122 Resistor Metal Film 0.25W 1% 220R R524 1M110 Resistor 0805 Surface Mount 0.125W 1% 100R...
  • Page 37 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R623 1M310 Resistor 0805 Surface Mount 0.125W 1% 10K R624 1M310 Resistor 0805 Surface Mount 0.125W 1% 10K R625 1M247 Resistor 0805 Surface Mount 0.125W 1% 4K7...
  • Page 38 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R719 1M210 Resistor 0805 Surface Mount 0.125W 1% 1K0 R720 1M210 Resistor 0805 Surface Mount 0.125W 1% 1K0 R721 1M000 Resistor 0805 Surface Mount 0.125W 1% 0R0...
  • Page 39 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description R846 1M347 Resistor 0805 Surface Mount 0.125W 1% 47K R847 1M347 Resistor 0805 Surface Mount 0.125W 1% 47K R848 1M347 Resistor 0805 Surface Mount 0.125W 1% 47K...
  • Page 40 A80 Amplifier main/display cct board L943AY issue 5.1 P80 Amplifier main/display cct board L944AY issue 5.1 Designator Part Description TR407 4AFMMT497 Transistor FMMT497 SOT23 Package TR408 4AFMMT497 Transistor FMMT497 SOT23 Package TR409 4AFMMT497 Transistor FMMT497 SOT23 Package TR410 4AFMMT497 Transistor FMMT497 SOT23 Package...
  • Page 41 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...

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Diva p80