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AML ezPDI-500 Assembly Manual

Passive di
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ezPDI-500 Passive DI - Assembly manual
["Colourbook" Issue 1]

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Summary of Contents for AML ezPDI-500

  • Page 1 Passive DI - Assembly manual [“Colourbook” Issue 1]...
  • Page 2 “Colourbook” Contents. Section 1 - “Colourbook” assembly guide Section 2 - Schematics diagrams and PCB Overlays Section 3 - Parts List...
  • Page 3 “Colourbook” revision history Revision 1 - initial release...
  • Page 4 Some units have in internal link which can be easily removed. Some units have in internal link which must be cut or de-soldered. If the ezPDI-500 is used in a unit where the Chassis Ground and Analogue Ground are connected, the Ground Lift switch on the ezPDI-500 will be ineffective.
  • Page 5 PCB Preparation Carefully snap apart the 3 PCB’s into individual boards and trim or file off any excess tabs. Ensure that the 3 areas highlighted are filed / trimmed completely flat XLR Option PCB Trim Pot PCB Main PCB...
  • Page 6 Zobel Network Termination Place a “blob” of solder across the two pads (SW7) for Zobel network termination...
  • Page 7 Ground lift filtering selection (on rear of trim pot PCB) For “standalone” use: For 500 series “lunchbox/rack” use: Place a “blob” of solder across the two pads of SW9 Place a “blob” of solder across the two pads of SW8 Do not put a “blob”...
  • Page 8 Resistors R2 & R3 = 100R R4 & R10 = 1k0 R13 = 1k8...
  • Page 9 Resistors R5, R6, R7, R8 & R9 = 7k5 R11 & R12 = 1M0 F1, F2, F3, F4, F5 & F6 = Ferrite Bead RSIL1 = 4M7...
  • Page 10 Ceramic C7, C8, C9, C10 & C13 = 47pF Capacitors C14 & C15 = 220pF C1, C2 & C11 = 100nF...
  • Page 11 Film C4, C6 & C16 = 15nF Capacitors C3 & C5 = 100nF CL1 & CL2 = 100pF 3 Terminal L/C Network...
  • Page 12 Connectors, PL3 & PL4 = 8 Way Female Header M3 Screw points and Electrolytic = M3 screw fitting Capacitor C12 = 10uF / 63v NON-Polarised Electrolytic Capacitor (1) - Can be fitted either way round (not polarised)
  • Page 13 Important: The toggle switches are Switches SW1, SW2, SW5 & SW6 = Toggle Switch 2-way (DPDT on-on) - (4) surprisingly sensitive to heat... solder [Horizontal - sub-min CK-03-006] one pin on each switch and then allow to cool before continuing. SW3 &...
  • Page 14 J1, J2, J3 & J4 = Stereo Jack Socket (NRJ6HH-AU) (4) and Transformer T1 = AML-18-001 (1) - DI Stepdown transformer - Maroon series IMPORTANT - The transformer must be fitted the correct way round CHECK THE PIN NUMBERS ON THE BOTTOM COINCIDE WITH...
  • Page 15 Potentiometer R1 = Potentiometer - 10k Linear with bracket [OM-01-095] (1) and Standoffs IMPORTANT - Cut the legs very short before soldering = 24mm Standoff (Female-Female) - (3) fitted using 8mm SEMS screws (3) Component side Main PCB Solder side...
  • Page 16 Inter-PCB Connectors PL1 & PL2 = 8 Way Male Pin Header Component side Solder side...
  • Page 17 Assemble PCBs Turn over the Pot PCB and place over the main PCB, aligning the pins of PL1 & 2 over the holes of PL3 & 4 and push down to engage the pins. Secure with 3 M3x6mm button head screws Secure with 3 M3x6mm button head screws (using 2mm allen key)
  • Page 18 Chassis Assembly 1] Remove the protective plastic coating from the chassis if fitted. 2] Secure faceplate to chassis with 2 x M3 Nyloc Nuts 2 x M3 Nyloc nut Secure PCB to chassis with 4 x M3x8 Sems screws...
  • Page 19 Turn the pot shaft fully counter-clockwise. Install the knob in the “- infinity" position. Install the ring nut for the Trim Potentiometer. (Tighten the 2 screws using a small screwdriver - do not over-tighten) [The shakeproof washer is not required]. ezPDI-500 ezPDI-500 TRIM TRIM RATIO...
  • Page 20 Lid* * Not fitted for Standalone option 1] Remove the protective plastic coating from the lid if fitted. See next page 2] Place the 0.4mm insulator over the trim pot PCB 3] Place the lid over and secure with 4 x M3x6mm button head screws (using 2mm allen key) 0.4mm insulator...
  • Page 21 Standalone Option PCB. J6 = Neutrik Chassis mount Male XLR - NC3MBH (1) J7 = Neutrik Chassis mount Female XLR - NC3FBH2 (1) LK1 to LK8 - Insulated wire links between the two PCB’s (8)
  • Page 22 Sub - API Chassis Title API Chassis ezPDI-500 Trim Output Sub - Ground Plane Sub - Trim Output Number AML-07-141 Sub - API Chassis 17th Aug. 2020 Date Drawn by C Adshead GND Lift File AML-07-141 - rev5 Sheet 1 of 1...
  • Page 23 AML-07-141 (Rev5) LIFT (ezPDI-500) Secondary Ratio Serial / Parallel Neutrik NC3MBH Primary Ratio Serial / Parallel HI Level in AML-18-001 HI Thru TRIM Neutrik NC3FBH2 Serial No: Level Built By: LO Thru Date:...
  • Page 26 Resistor Pack - SIL 4 separate RSIL1 Others EMI Filter - Murata 1K CL1-2 Ferrite Bead F1-6 Switch - C&K SubMin DPDT Horiz SW1, SW2, SW5 & SW6 Switch - C&K SubMin DPDT Horiz SW3 & SW4 (3 way ON-ON-ON) Transformer AML-18-001...