Name: AkitikA PR-102
Brand: AkitikA
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Page 6 of 80

Figure 56-input selector page 3......................................................................................... 79

Figure 57-power supply schematic ................................................................................... 80

Table of Contents2
Table of Figures4
Section 1: about this Manual7
Who Should Attempt this Project7
Tools You'll Need7
Helpful Tools8
Project Overview8
Important Safety Notes8
About Components8
Recommended Solder9
Warranty9
Section 2: about Building the Kit10
Section 3: Building the Power Supply PCB11
Component Order11
Figure 1-Empty the Power Supply Components into a Soup Bowl11
Figure 2-Component Side of Power Supply PCB before Loading11
Install the Diodes12
Install the Non-Polarized Capacitors12
Install the Not so Tall Polarized Capacitors13
Install the Fuse and Fuse Holder13
Install the Tall Polarized Capacitors13
Figure 3-Fuse Holder Body Solders into Board, Installing Fuse into Lid of Fuse Holder13
Install the Regulators and Heat Sinks14
Figure 4-Assembling Heatsink to a Regulator14
Install the AGD-BGD Jumper15
Install the Voltage Select Jumpers15
Figure 5-Solder Heat Sink Mounting Rods to Retain the Heat Sink15
Figure 6-Preparing Green Wire AGD-BGD Jumper15
Figure 7-Install AGND to BGND Jumper15
Figure 8-Preparing Power Supply Jumper Wires15
These Components Are Not Loaded16
Power Supply Inspection16
Figure 9-Jumper Installation for 120 Volt Operation (Left Side) and 240 Volt (Right Side)16
Figure 10-Power Supply before Transformer Is Installed, Wired for 120 Volts16
Section 4: Chassis Assembly and Power Wiring17
Protect Your PR-10217
Install the Feet17
Install the IR Detector Window17
Figure 11-Install 4 Feet with 6-32X1/2" Silver Colored Screws17
Figure 12-IR Window with Release Paper, die Cut Mounting Tape18
Install Back Panel Power Connectors and Front Panel Power Switch19
Figure 13-Installing Power Outlets and IEC Connector19
Power Wiring20
Figure 14-Insert Cable Ties, then Lay Twisted Pair into the Chassis Corner21
Figure 15-Form Switch Wires to Avoid the Ground Stud23
Figure 16-Adding Lug to Ground Harness23
Connecting the Chassis Ground24
Connect the Toroidal Transformer to the Power Supply24
Figure 17-AC Power and Ground Wiring24
Figure 18-Transformer and Power Supply Assembly Ready for Installation25
Add Power Output Wires to the Power Supply26
12 Volt Ground Wires26
12 Volt Power Wires27
Volt Power and Ground Wires27
Connect Power Input Wires and Install the Power Supply28
Prepare to Test the Power Supply29
Figure 19-Fasten the Transformer to the Preamp Right Side Wall29
Figure 20-Power Supply Assembled and Installed29
Test the Power Supply30
Section 5: Assembling the Controller31
Component Side31
Install the Resistors31
Figure 21-Silk Screen of the "Component Side" of the Controller PCB31
Install the Non-Polarized Capacitors32
Install the IC's and Transistor33
Install the Resistor Networks33
Figure 22-Insert All the IC's so that the U-Shaped Indent Matches the Silk-Screen33
Install the Ferrite Beads34
Install the Control Cable Connectors and Controller Socket35
Figure 23-14 and 16 Pin Cable Connector Installation35
Figure 24-Showing Socket Orientation35
Components to be Installed Later36
Locations that Remain Unpopulated36
You've Finished this Side of the Controller PCB for Now36
Install the Push Buttons36
Figure 25-Switch and LED Side of Controller Board36
Install the Infrared Detector37
Figure 26-Bending the IR Detector Leads and Setting the Mounting Height37
Install the Leds38
Figure 27-LED with White Spacer Added38
Figure 28-Observe D8 Installed and Orientation of the Lead Frame of the LED39
Install the Last Four Capacitors40
Fit the Controller into the Front Panel40
Figure 29-Completed Controller, Push-Button and LED Side and Component Side40
Install the Controller Power Wire41
Install the Controller PCB into the Front Panel41
Install the Microcontroller41
Test the Controller PCB42
Test the Remote Control42
Take a Break42
Section 6: Assembling the Input Selector Board43
Install the Resistors43
Figure 30-Silkscreen Side of the Input Selector Board Shows Component Locations43
Choosing CD Attenuation45
Adding 12 Db of Attenuation to the CD Input45
Adding no Attenuation to the CD Input45
Install the Small Capacitors46
Install the Diodes46
Install the Bypass Capacitors46
Install the Integrated Circuit Sockets47
Install the Control Cable Connector47
Figure 31-Align Socket Feature with Silk Screen47
Install the Relays48
Install the Transistors48
Figure 32-Correct Orientation for P1 on the Selector Board48
Install the Tall Film Capacitors49
Install the Electrolytic Capacitor49
Install J1 and J249
Install the Input Jack Shield50
These Connectors Are Not Populated50
Figure 33-Mounting the Input Connector Shield50
Install Input Selector Signal Wiring51
Figure 34-Assembled Input Selector Board (some Kits Have Black Relays)51
Install Input Selector Power Wiring53
Install the Op-Amp Integrated Circuits into the Sockets53
Mount the Input Selector PCB54
Test the Input Selector PCB Power Drain54
Figure 35-Insert Opamp so Semi-Circular Indentation in IC Package Matches Silk-Screen54
Install 16 Pin Ribbon Cable55
Test Input Selector Control Interface55
Figure 36-16 Pin Ribbon Cable Orientation and Installation55
Note about H1 and H256
Take a Break56
Section 7: Assembling the Tone-Volume-Balance Board56
Install the Resistors56
Figure 37-Silkscreen Side of the Tone Volume Board Shows Component Locations56
Install the Motor Driver IC58
Install the Diodes58
Figure 38-Orientation of IC658
Figure 39-C13 and C14 Installation (C13 Shown)58
Install C13 and C1459
Install the Sockets for IC1 through IC359
Install the Bypass Caps59
Install the Relays59
Install the 14-Pin Cable Connector60
Install the Remaining Non-Polar Capacitors60
Figure 40-Carefully Note the Connector Orientation60
Figure 41-Install Jumper Wires in the C5 and C6 Positions60
Install the Polarized Electrolytic Bypass Capacitor61
Install the Bipolar Transistors61
Install the Tone Control Pots61
Volume and Balance Motor Pot Installation61
Figure 42-Motor POT Wire Preparation61
Figure 43-Motor POT Wiring Detail62
Final Inspection63
Install the Op-Amps63
If You Installed Sockets63
Figure 44-Assembled Tone Volume Board (Oblique View)63
Figure 45-Tone Volume Board Viewed from Directly above64
Section 8: Preliminary Final Assembly65
Wire and Install the Front Panel Input Connector65
Install the Headphone Jack65
Figure 46-Connecting Wires to Front Panel (FP) 1/8" Phono Jack65
Figure 47-Inserting 1/8" Jacks in the Front Panel65
Connect Power to the Tone Volume PCB66
Tone Volume Signal Wiring66
Install the Tone Volume PCB67
Test the Tone Volume PCB Step 167
Test the Tone Volume PCB Step 267
Figure 48-Showing 14 Pin Ribbon Cable Installation and Orientation67
Section 9: Final Mechanical Assembly68
Final Mechanical Assembly68
Figure 49-Install Plastite Screws (6) in the Holes between the Left and Right Channel Input68
Section 10: about the Preamp Architecture69
Features69
Figure 50-Two of the Three Cover Plates Have Been Installed69
Gain Customization70
Specifications70
Appendix 1 - Shielded Cable Preparation71
Block Diagram73
Schematics74
Figure 51-Tone Volume Schematic74
Figure 52-Controller Schematic75
Figure 53-Controller Schematic76
Figure 54-Input Selector77
Figure 55-Input Selector78

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AkitikA PR-102 Specifications

General

Brand	AkitikA
Model	PR-102
Category	Amplifier
Language	English

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