FiveFish Audio PSU-2448Plus+ Assembly Manual Download | Manualshive

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Copyright © 2017 FiveFish Audio

PSU-2 Assembly Guide

4. WIRING GUIDE

4.1 AC Input (from Power Transformer Secondary)

Connect the Power Supply Board to the power transformer secondary windings. Use the following wiring guide. Colors

refer to the transformer secondary winding wire colors.

NOTE:

Red and Orange wires are connected together at the PSU Board. You can interchange the Yellow/Black wire

locations, since we’re dealing with AC voltages and there is no polarity.

The PSU kit uses standard 0.1” pitch pads for all

input and output connections. You can use standard

0.1” Molex headers to make connections.

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Summary of Contents for PSU-2448Plus+

Page 1: ...FiveFish Studios PSU 2448Plus Assembly Guide Copyright 2015 2017 FiveFish Audio ...

Page 2: ...ally posted online on the Internet in whole or in part without the expressed written permission of FiveFish Audio This document is solely provided to the kit builder of the PSU 2448Plus Power Supply Kit Copyright 2015 2017 FiveFish Audio fivefishaudio com Revision 1 02 20171105 ...

Page 3: ... This assembly guide is a work in progress and we re continually working to improve it As always we welcome the input of the DIY community if you have any comments suggestions or additional information that you think will be helpful for inclusion in this assembly guide If you have any questions that are not covered by this assembly guide please feel free to contact us at www fivefishaudio com or v...

Page 4: ...disconnection or lack of connection of the protective earth terminal safety ground may cause a potential electric shock hazard that could result in personal injury Grounding one conductor of a two conductor outlet is not sufficient protection Connect the safety ground of your AC wall outlet to the metal case of your power supply enclosure Some voltage adjustments described in this assembly guide r...

Page 5: ... three 3 voltage rails V V 48V are easily adjustable using onboard trimmers The V and V outputs can be adjusted for 15 16 18 or 24V projects or any other voltage you need The 48Volt DC output used for phantom powering can be finely adjusted to give you exactly 48 Volts A fourth voltage output is also available for powering auxilliary circuits It s up to the end user to select what voltage they wan...

Page 6: ... DO NOT CONNECT THE PSU 2448PLUS KIT DIRECTLY TO AC MAIN LINES The instructions on this page are for the FiveFish Audio PWR TRAFO kit If you are using a different power transformer brand or model part please consult your power transformer s manufacturer s documentation 110Volt Wiring Guide 220Volt Wiring Guide ...

Page 7: ...A small to medium sized soldering tip is required to solder the small parts You may use lead free or 60 40 lead based solder 2 2 Cutter You will need a cutter to cut component leads and wires 2 3 Solder Sucker Pump If you need to desolder a component you ll need one 2 4 Multitester Used for measuring resistance continuity and voltages 2 5 Magnifier Lamp I recommend a clean and well lighted space f...

Page 8: ...ONS Open zip bag insert component into board solder All components are labeled in their own zip bags There may be multiple components stored in each zip bag with their quantity noted The voltage regulator part numbers LM317 LM337 are marked on the device Make sure to insert each regulator into it s correct location TIP Solder smallest shortest components first before the larger taller components t...

Page 9: ... Audio PSU 2448Plus Assembly Guide 3 2 Solder all ceramic capacitors These are the small yellow components 3 3 Solder Bridge Rectifiers The Bridge Rectifiers may be damaged if you apply too much heat for a long period of time ...

Page 10: ...lder the 3 Light Emitting Diodes LED LEDs like diodes have polarity and must be inserted in the proper orientation See additional photos below for correct orientation Mount the LEDs as low as possible on the PCB so it wouldn t interfere when the fuses are installed ...

Page 11: ... capacitors have polarity markings One side is marked negative and the other side is positive Insert the capacitors to the PCB following the correct polarity NOTE All capacitors in the PSU kit are oriented in the same direction 3 5 Solder all small electrolytic capacitors ...

Page 12: ...Copyright 2017 FiveFish Audio PSU 2448Plus Assembly Guide 3 6 Solder all trimmer resistors Trimmer resistors are used to adjust the final output voltages of the Power Supply Unit ...

Page 13: ...r side is positive Insert the capacitors to the PCB following the correct polarity NOTE All capacitors in the PSU kit are oriented in the same direction 3 7 Solder all medium sized electrolytic capacitors then all large sized electrolytic capacitors NOTE The 1000uf 80V capacitors are twist in type Push them into the board with a rotating motion ...

Page 14: ...e facing towards the edge of the PCB For V and 48V section Use the LM317HVT voltage regulator For V section Use the LM337 voltage regulator For the Vaux section You may use any of the following 7805 7812 7815 or 7818 voltage regulators for 5V 12V 15V 18Volts respectively DO NOT INTERCHANGE THE POSITION OF THE VOLTAGE REGULATORS OR YOU MAY DAMAGE THEM ...

Page 15: ...e kit Please read note below If you want to use a single or common heatsink for all voltage regulators for example metal chassis case or a big aluminum fin type heatsink you need to use MICA or SIL PAD insulators and check that the regulator tab is electrically isolated from your aluminum or metal heatsink Failure to electrically isolate the metal tab from your common heatsink will result in a sho...

Page 16: ...hort circuit protection we think the fuses offer additional protection and will be much more convenient for the end user to replace than a damage voltage regulator 3 10 Solder the 6 fuse clips After soldering the fuse clips insert the 3 fuses into the fuse holders NOTE Observe the proper orientation of the fuse clip One side has a stopper and the other side is completely open The stopper side shou...

Page 17: ... following wiring guide Colors refer to the transformer secondary winding wire colors NOTE Red and Orange wires are connected together at the PSU Board You can interchange the Yellow Black wire locations since we re dealing with AC voltages and there is no polarity The PSU kit uses standard 0 1 pitch pads for all input and output connections You can use standard 0 1 Molex headers to make connectio...

Page 18: ...the PSU board They are identical and the same Vaux output can be configured by using the appropriate voltage regulator part for IC4 location 5V 7805 Voltage Regulator in IC4 location 12V 7812 Voltage Regulator in IC4 location 15V 7815 Voltage Regulator in IC4 location 18V 7818 Voltage Regulator in IC4 location ...

Page 19: ...provided for wiring to a Panel LED to indicate Power ON You may replace the resistor behind the LED headers if you need more less current for your chosen LED indicator The supply voltage is 48V Compute for the appropriate value of R using the formula R V x I where I is the current required for LED illumination ...

Page 20: ... complete this section You will be working with high voltage AC mains line Depending on your location this may be 110Volts or 220Volts These voltages can seriously injure or kill and I strongly suggest following all safety precautions AC INPUT FUSE HOLDER SAFETY GROUND POWER TRANSFORMER VIOLET BLUE GRAY BROWN 110 VOLT WIRING GUIDE POWER SWITCH For 220V Wiring Guide refer to page 6 of this assembly...

Page 21: ...robe lead to DC1 pad2 labeled V Connect multimeter probe lead to DC1 pad3 labeled GND Adjust R6 trimmer for your desired output voltage 5 3 Adjustment procedure for V output Set multimeter to DC Volts reading Connect multimeter probe lead to DC1 pad4 labeled V Connect multimeter probe lead to DC1 pad3 labeled GND Adjust R7 trimmer for your desired output voltage Note Polarity will be reversed and ...

Page 22: ...use is blown Check if LED is lit up below the fuse If the LED is OFF then that particular fuse is broken Replace fuse with a new one If the replacement fuse blows open again you have a short circuit somewhere either down the line load or in the PSU Remove offending short circuit 6 4 No output voltage Fuse is blowing open Check orientation of all the diodes if they are placed correctly A diode in t...

Page 23: ...Copyright 2017 FiveFish Audio PSU 2448Plus Assembly Guide This page intentionally left blank ...

Page 24: ... C22 C23 2 1000uf 80V C1 C18 Snap in type Capacitors 2 LM317HVT IC1 IC2 Positive Voltage Regulator 1 LM337 IC3 Negative Voltage Regulator 1 78xx IC4 not included Use either 7805 7812 7815 7818 2 W02M RECT1 RECT2 Bridge Rectifier 6 1N4004 D1 D2 D3 D4 D5 D6 Protection Diodes 3 LED LED1 LED2 LED3 Light Emitting Diode 1 Panel Mount LED LED4 Not included in this kit but in PWR TRAFO KIT 4 Heatsink HS1 ...

Page 25: ...Copyright 2017 FiveFish Audio PSU 2448Plus Assembly Guide 8 COMPONENT GUIDE ...

Page 26: ...ED Indicator Panel LED Indicator DC Filtering Adjustable Voltage Regulator DC Filtering Fuse Protection LED Indicator DC Filtering Adjustable Voltage Regulator DC Filtering Fuse Protection LED Indicator AC AC 48V V V DC Filtering Fixed Voltage Regulator DC Filtering Vaux NOTE The AC voltage depicted in block diagram above comes from the low voltage secondary winding of the power transformer ...

Page 27: ...Copyright 2017 FiveFish Audio PSU 2448Plus Assembly Guide 10 SCHEMATIC DIAGRAM ...

Page 28: ...Copyright 2017 FiveFish Audio PSU 2448Plus Assembly Guide 11 ERRATA MANUAL CHANGE INFORMATION Any corrections changes modifications improvements to this product will be listed on this page ...

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