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Final

Adjustments

Adjust

the

Constant

Current

Sources

Measure the resistance across resistor R29 and adjust potentiometer R30 so that the
resistance across R29 is 25

Ω

————————————————————————————

Measure the resistance across resistor R33 and adjust potentiometer R34 so that the
resistance across R33 is 25

Ω

————————————————————————————

Measure the resistance across resistor R37 and adjust potentiometer R38 so that the
resistance across R37 is 100

Ω

————————————————————————————

Measure the resistance across resistor R42 and adjust potentiometer R43 so that the
resistance across R42 is 100

Ω

————————————————————————————

Measure the resistance across resistor R47 and adjust potentiometer R48 so that the
resistance across R47 is 100

Ω

————————————————————————————

Measure the resistance across resistor R52 and adjust potentiometer R53 so that the
resistance across R52 is 100

Ω

————————————————————————————

Install a 6N6P tube in locations V1 and V2.

————————————————————————————

Power on the Active Output and allow it to warm up for about one minute.

————————————————————————————

Содержание Premium Extreme RAKK dac

Страница 1: ...RAKK dac raleigh audio Mark IV Premium Extreme RAKK dac Assembly Manual Version 1 1 2014 Raleigh Audio ...

Страница 2: ...This completed Extreme RAKK dac has a silver face plate and knobs A black faceplate and knobs is available 1 ...

Страница 3: ...electronic components and assembly Kit version Use this manual with the Premium Extreme RAKK dac Mark IV Use the applicable on line manuals for component sub assemblies Required Tools and Supplies 150 to 250 Watt soldering gun 35 to 50 Watt soldering iron Phillips cross point screwdriver Volt Ohm Milliamp Meter Potentiometer adjustment tool supplied 1 16 hex Allen wrench supplied 5 64 hex Allen wr...

Страница 4: ...ation although any good soldering iron of 40 watts or greater will do There are many soldering stations on the market I have had good experience with the moderately priced Hakko Model 936 If you do have or purchase a soldering station or even use your existing soldering iron I have found a chisel style tip of about 2mm 2 5mm width to be the most useful You can use the flat part for large solder jo...

Страница 5: ...wer Supply for the Active Output 12 Pre wire the Active Output 14 Pre wire the RAKK dac and I2S Interface Adapter if used 16 Pre wire the Power Transformer 18 Panel Preparation 20 Bottom Panel Preparation 20 Back Panel Preparation 21 Side Panel Preparation 22 Front Panel Preparation 22 Panel Assembly 23 Bottom Panel Assembly 23 Back Panel Assembly 33 Front Panel Assembly 39 Final Assembly and Wiri...

Страница 6: ...Document version history 64 5 ...

Страница 7: ...rs and a Low Voltage Power System Standard Power Supply You may also have chosen to have an I2S adapter or USB adapter and their associated Regulators The Low Voltage Power System components can be configured to supply any voltage that is required The voltages used are as follows RAKK dac 10V Premium Regulator and 5V Premium Regulator I2S Adapter 5V Premium Regulator USB Adapter 8V Premium Regulat...

Страница 8: ...oards The assembly manuals for the boards include installation instructions that you will not use Rather than using those general instructions you will follow the specific installation instructions contained in this manual There are two sizes of stranded wire provided with the kit 22 and 20 The larger diameter 20 is used for power and high voltage The smaller diameter 22 is used for signal and low...

Страница 9: ...unt four 3 8 standoffs on the bottom of the I2S Adapter and secure with 6 32 screws 3 Insert a 3 8 6 32 setscrew about half way into each 3 8 standoff 4 Mount the I2S adapter on the RAKK dac such that the connector on the bottom of the I2S adapter mates with the connector on the top of the RAKK dac 5 Install a 3 8 standoff as a nut on each of the four 3 8 standoffs to hold the two pieces together ...

Страница 10: ... If you don t have a drill handy the old fashioned way of manually twisting the wires works fine I have described how I do it here To make a multi wire cable first make a twisted pair and then wrap a third wire around the twisted pair following the lay of one of the wires Then stretch this new wire like you did the others Follow with a fourth and fifth wire as needed About 5 shrinkage occurs when ...

Страница 11: ...Wrap the wire around the red black twisted pair Skip the following step if you do not have a TOSLIKK adapter 5 If you have a TOSLINK input prepare a 19 22 red black twisted pair Connect the red wire to the DC Output pad Connect the black wire to the DC Output pad Pre wire the 5V Regulator for the three input I2S Adapter Skip this section if you do not have a three input I2S Adapter 6 Prepare a 22 ...

Страница 12: ...ator for the USB Adapter Skip this section if you do not have a USB Adapter 8 Prepare a 16 22 red black twisted pair Connect the red wire to the DC Output pad Connect the black wire to the DC Output pad Skip the following three steps if you have a three input I2S Adapter 9 Install a 1K resistor in location R5 10 Install a jumper wire in the ground A location Note that there should be no jumper in ...

Страница 13: ... inner most AC Input pads 17 Fabricate a T shaped AC power cable as follows Cut a 20 black wire 7 inches long Do not strip the ends Cut a 20 black wire 23 inches long Do not strip the ends Cut a 20 white wire 24 inches long Do not strip the ends Align the white wire with the longer black wire and twist them together for about 18 Align the other black wire with the other end of the white wire and t...

Страница 14: ...bricated Strip and tin the end of the 4 part of the black white twisted pair Observing the same black white orientation as the 5 black white twisted pair that you just connected connect this twisted pair to the outer most AC Input pads 13 ...

Страница 15: ...l Mute 4 Using a craft knife cut a gap in the trace that connects the two external mute pads 5 Prepare a 24 22 black black twisted pair Connect the two wires to the two external mute pads Wire the Volume Control on the Active Output skip this section if you do not have a volume control 6 Prepare a 5 22 blue black twisted pair Connect the blue wire to the volume control L pad Connect the black wire...

Страница 16: ...Wire the Ground on the Active Output 8 Connect a 13 20 green wire to the chassis pad The Line Input pads are not used 15 ...

Страница 17: ...K dac input 4 or I2S input 6 1 If you have chosen to use only a single input install a jumper wire between the Input Select pad for that input and the adjacent com pad on the RAKK dac 2 If you have chosen to use multiple inputs you will prepare a cable Two lengths are given for each input the first is used if the input is on the RAKK dac and the second in parentheses is used if the input is on the...

Страница 18: ...nect the violet wire to the Input Select pad selected by switch position 3 Connect the black wire to the Input Select pad selected by switch position 4 Connect the red wire to the Input Select pad selected by switch position 5 Connect the white wire to the Input Select pad selected by switch position 6 RAKK dac inputs 1 through 3 will be pre wired on the back panel assembly We have found the Lock ...

Страница 19: ... the shorter wire to pin 15 on the power transformer 3 Connect the center tap in the following manner Prepare a 10 piece of 20 black wire and strip 1 from one end Connect the tip of this end to pin 24 and then wrap the bare wire around pin 22 Solder both pins Dress this wire towards pin 15 and wrap it around the red twisted pair following the lay of the twist Trim the black wire to be the same len...

Страница 20: ...re to pin B3 on the power transformer Skip this step if you do not have a USB Adapter 19 Wire the AC power for the 8V regulator for the USB adapter Make a twisted pair from two pieces of 20 grey wire one 6 long and one 8 long Align the wires evenly at one end Connect the longer wire at the uneven end to pin B5 on the power transformer Connect the shorter wire to pin B2 on the power transformer Ski...

Страница 21: ...6 32 x screw flat washer and Kep nut on each foot Place the washer between the head of the screw and the rubber foot 2 Install one piece of 8 x 1 damping material on the inside of the bottom panel centered between the vents and the lip 3 Install one piece of 4 x 1 damping material on the inside of the bottom panel next to and centered on the left side of the vents 4 Install one piece of 4 x 1 damp...

Страница 22: ...side of the top panel centered between the back of the panel and the vents but closer to the vents so as not to interfere with attaching the back panel Back Panel Preparation The back panel consists of two parts an open frame that attaches to the other panels and a customized insert that contains the jacks Place the insert inside the frame and secure them with ten 4 40 x screws and ten Kep nuts Be...

Страница 23: ...ary depending upon the switches and controls that you have chosen 1 Install the two remaining 2 x 2 pieces of damping material on the inside of the front panel Position them evenly and you may wish to cut one or both pieces to provide a more even distribution Make sure that there is at least between the damping material and either the top edge or bottom edge of the panel 2 Install an 8 32 x setscr...

Страница 24: ...ffs Mount the power transformer 1 Mount the LL1683 transformer in its location using the four 4mm metric screws Orient the transformer such that the high voltage shorter pins are towards the front of the panel The front of the panel has the lip Dress each of the grey twisted pairs that will be attached to the Regulator Modules toward the edge of the panel Dress the grey twisted pair that will powe...

Страница 25: ...ormer pins B4 and B7 along the edge of the panel to the Power Output Module Connect the wires to the two AC Input pads closest to resistor R6 Connect the grey wire to the pad closest to capacitor C9 Connect the yellow wire to the pad closest to resistor R2 4 Dress the red black twisted pair towards the front of the panel 5 Secure the board to the panel with four 6 32 x screws 6 If you have a three...

Страница 26: ...onnect the wires to the two AC Input pads closest to the edge of the board Connect the grey wire to the pad closest to capacitor C9 Connect the yellow wire to the pad closest to resistor R2 Note that the two yellow wires are next to each other and the two grey wires are next to each other 9 Dress the red black twisted pair directly across the panel 10 Secure the board to the panel with four 6 32 x...

Страница 27: ...s location on top of the standoffs on the 10V Regulator Orient the board such that the AC Input is closest to the edge of the panel Secure the board with four 6 32 x screws 13 Dress the grey twisted pair from transformer pins B3 and B8 toward the 5V Regulator module Connect these wires to the 5V Regulator module 14 Dress the red black twisted pair toward the front of the panel 26 ...

Страница 28: ... location on top of the standoffs on the RAKK dac 5V Regulator Orient the board such that the AC Input is closest to the edge of the panel Secure the board with four 6 32 x screws 16 Dress the grey twisted pair from transformer pins B2 and B5 toward the 5V Regulator module Connect these wires to the 5V Regulator module 17 Dress the red black twisted pair directly across the bottom panel 27 ...

Страница 29: ...the standoffs on the RAKK dac 5V Regulator Orient the board such that the AC Input is closest to the edge of the panel Secure the board with four 6 32 x screws 19 Dress the grey twisted pair from transformer pins B2 and B5 toward the 8V Regulator module Connect these wires to the 8V Regulator module 20 Dress the red black twisted pair directly across the bottom panel 28 ...

Страница 30: ... Locate the red twisted pair that is connected to transformer pins 15 and 17 and has a black wire wrapped around it These three wires will be connected to the 250V 0 250V pads Connect the two red wires to the outer pads Connect the black wire to the center pad 24 Secure the board with thirteen 6 32 x screws 25 Dress the wires Dress the twisted pairs for the volume control towards the front of the ...

Страница 31: ...from the 12V DC output under the Active Output directly towards the left side of the chassis Dress the green wire directly towards the back of the panel Dress the violet white twisted pair from the LED pads under the board and out toward the front of the panel This should be to the left of the white black twisted pairs Dress the short white black twisted pair out the front and directly to the righ...

Страница 32: ...wire that are connected to the From RAKK dac pads on the Active Output These will be connected to the Output pads on the RAKK dac Connect the orange wire to the R pad and connect the associated black wire to the R pad Connect the blue wire to the L pad and connect the associated black wire to the L pad Connect the black wire to the REF pad 28 Locate the 14 red black twisted pair that is connected ...

Страница 33: ...r DC Output It will be connected to the 5V pads on the I2S Adapter Connect the red wire to the pad Connect the black wire to the pad 31 If you have a three input I2S Adapter locate the red wire from the 10V Regulator DC Output Connect this wire to the 12V pad on the I2S adapter 32 Dress the Input Select wires along the side to the front of the panel 32 ...

Страница 34: ...ith two 4 40 x screws and nuts Orient XLR jacks such that the center pin is on the bottom XLR inputs use female jacks with a tab XLR outputs use male jacks The HDMI jack should be mounted with the widest part of the connector closest to the top of the panel The standard output jack arrangement is for a pair of RCA jacks and a pair of XLR jacks An associated switch selects the proper grounding for ...

Страница 35: ...e connector such that the fuse is on the bottom and secure with two 4 40 x screws and nuts 7 Install the solder lug on the inside of the panel in the hole adjacent to the power connector Secure with a 4mm screw and nut Orient the solder tab away from the power connector and form the solder tab at a 90 degree angle away from the panel Wire the power connector 8 Wire the safety ground This wire will...

Страница 36: ...he XLR jacks have an extra silver colored metal tab adjacent to pin 1 This tab is connected to the body of the jack and may be used to make a chassis ground connection 11 Connect a jumper wire from pin 1 on the left output XLR connector to the adjacent ground tab Solder both ends 12 Connect a jumper wire from pin 1 on the right output XLR connector to the adjacent ground tab Solder both ends 13 If...

Страница 37: ...eed the wire through the tab on the RCA XLR switch that is closest to the right XLR output jack Solder this tab Wrap the wire around the shell of the right RCA output jack and solder it to the shell Prepare a 1 long blue wire and connect it between the center pin of the left RCA output jack and pin 2 of the left XLR output jack Prepare a 1 long orange wire and connect it between the center pin of ...

Страница 38: ...t wire to pin 2 and the black wire to pin 3 You previously wired a jumper between pin 1 and the adjacent tab 17 Wire the AES3id input BNC jack as follows Prepare an 8 22 violet black twisted pair Connect the violet wire to the center pin Connect the black wire to the shell 18 Wire the TOSLINK input if used as follows Prepare an 8 22 violet black twisted pair Connect the violet wire to SPDIF and th...

Страница 39: ... 38 ...

Страница 40: ...shorter lead on each LED to be long Cut the longer lead on each LED to be long 2 Mount the Power On LED in its hole and secure it in place with a drop of adhesive 3 Install the Power on off switch in its location on the right end from the front of the panel using the supplied nut Tighten the nut snug but be careful to not over tighten the nut because the thread is plastic and it may strip 4 Instal...

Страница 41: ...from the chassis pad on the Active Output close to the chassis and connect it to the ground buss 4 Dress the green wire from the DC Output pad on the 12V power supply close to the chassis and connect it to the ground buss 5 Dress the white black power cable that is connected to the 12V power supply as follows First from the power supply to the front edge of the panel Then along the front edge of t...

Страница 42: ...o the Right Output pads on the Active Output Connect the orange wire to the R pad and the black wire to the R pad 9 Connect the blue black twisted pair from the Left Output RCA jack to the Left Output pads on the Active Output Connect the blue wire to the L pad and the black wire to the L pad 10 Connect the blue black twisted pair from the Left Output XLR jack to the Left Output pads on the Active...

Страница 43: ... 14 If you have chosen to have a TOSLINK connect the 19 red black twisted pair from the 10V Regulator to the 12V pads on the TOSLINK board Connect the red wire to the pad and the black wire to the pad Connect the I2S Inputs to the 3 Input I2S Adapter Skip this step if you do not have a 3 Input I2S Adapter 15 Dress the flat cables close to the chassis and connect them to the appropriate inputs on t...

Страница 44: ... close to the chassis and connect it to the Input 4 I2S connector on the RAKK dac Wire the Single Input I2S Adapter and connect it to the RAKK dac Skip this step if you do not have a Single Input I2S Adapter 20 Locate the red black twisted pair from the 5V Regulator and connect it to the 5V pads on the I2S Adapter Connect the red wire to the pad and the black wire to the pad 21 Dress the flat cabl...

Страница 45: ... 44 ...

Страница 46: ...Wire the Bottom Panel to the Front Panel Lay the front panel down adjacent to the bottom panel where it will be installed Trim the lengths of the wires as needed in the following steps 45 ...

Страница 47: ...follows Connect the blue wire to the tab extending from the switch wafer closest to the front panel Connect the associated black wire to the com pad on the board closest to the front panel Connect the orange wire to the tab extending from the switch wafer closest to the back of the switch Connect the associated black wire to the com pad on the board closest to the back of the switch 46 ...

Страница 48: ...Select pads on the RAKK dac as follows Connect the grey wire to the A tab of the Select switch Connect the blue wire to the 1 tab Connect the orange wire to the 2 tab Connect the violet wire to the 3 tab Connect the black wire to the 4 tab Connect the red wire to the 5 tab Connect the white wire to the 6 tab 47 ...

Страница 49: ...switch has four terminals two pairs One pair will be used to control the power on off and the other pair will be used to provide a fast mute for power off 5 Connect the 20 black twisted pair from the white black power cable to the two terminals on the power on switch that are closest to the bottom of the panel 6 Connect the 22 black twisted pair from the external mute on the Active Output to the t...

Страница 50: ...lastic covers from the studs now The stud in the center bottom of the front panel fits into the hole in the lip of the bottom panel Secure the panel with a 6 32 KEP nut on the center stud only finger tight 9 Neatly dress the wires along the bottom panel close to the front panel 49 ...

Страница 51: ... three screws securing the back panel to the bottom panel 2 Align the surface of the back panel with the edge of the bottom panel 3 Make sure that the left and right edges of the back panel align with the left and right edges of the bottom panel 4 Firmly tighten the three screws securing the back panel to the bottom panel Position the two side panels on the ends of the bottom panel 1 Orient the si...

Страница 52: ...ng the top of the side panel left or right as is necessary to make the holes in the top panel align properly with the holes in the side panels Secure the back side and bottom panels 1 Install nine screws in the top panel Firmly tighten these screws 2 Firmly tighten the four screws securing the back panel to the side panels 3 Firmly tighten the three screws securing each side panel to the bottom pa...

Страница 53: ...52 ...

Страница 54: ...53 ...

Страница 55: ...54 ...

Страница 56: ...55 ...

Страница 57: ...djust potentiometer R38 so that the resistance across R37 is 100Ω 4 Measure the resistance across resistor R42 and adjust potentiometer R43 so that the resistance across R42 is 100Ω 5 Measure the resistance across resistor R47 and adjust potentiometer R48 so that the resistance across R47 is 100Ω 6 Measure the resistance across resistor R52 and adjust potentiometer R53 so that the resistance acros...

Страница 58: ...er board to the ground buss Adjust R30 11 Measure the voltage across each of the four CCS current sense resistors and adjust the associated potentiometers for 240mV across its resistor Measure Adjust Voltage R39 R38 0 240V R44 R43 0 240V R49 R48 0 240V R54 R53 0 240V 12 Allow the unit to warm up for about 15 minutes and then check and re adjust the above six adjustments Adjust the Front Panel LED ...

Страница 59: ...ition the top panel on the top of the unit and secure with nine 6 32 x Phillips head screws Tighten these screws 3 Install the knobs Align the knobs and tighten the setscrews using a 1 5mm hex wrench 4 Apply optional labeling tape to the front panel Congratulations You have finished the assembly and installation Enjoy the music and be aware that the character and quality of the sound will improve ...

Страница 60: ...Active Differential Output Low Voltage Power System Regulator 10V Low Voltage Power System Regulator 12V Front Panel Options The front panel will be customized for the options that you have chosen Volume Control Part Description Qty volume control 1 knob 1 Input Select switch Part Description Qty select switch 1 knob 1 59 ...

Страница 61: ... 2 4 or 6 Kep nut 4 40 with star washer 2 4 or 6 LL1574 pulse transformer 1 2 or 3 I2S Input Part Description Qty I2S Interface Adapter circuit board either 1 input or 3 input 1 standoff 6 32 x 1 4 setscrew 6 32 x 4 LVPS Regulator 5V circuit board and parts 1 HDMI jack with cable 1 2 or 3 screw 4 40 x 2 4 or 6 USB Input Part Description Qty USB Adapter circuit board assembly with cable 1 LVPS Regu...

Страница 62: ...rame two sides 1 Back Panel custom 1 Power switch Rotary 1 Knob For power switch 1 AC inlet module Black with three prongs 1 Fuse 0 5A 250V 5 x 20mm for 115VAC 0 315A 250V 5 x 20mm for 230VAC 2 RCA jack Cardas 2 XLR jack male Black with three prongs 2 Switch toggle For RCA XLR 1 LED blue 2 Power transformer LL1683 1 Foot Damping black 4 Damping material 2 by 10 with adhesive backing 3 61 ...

Страница 63: ...en 4 and 5 twists per inch is good Be sure not to twist all the wire of a given color as some individual pieces are needed as well as twisted ones Remember the twisting will slightly shrink the length so take this into account Part Description Qty Wire 20 gauge white 20 black 52 red 21 green 41 grey 48 Wire 22 gauge black 287 blue 80 red 111 orange 77 violet 45 Wire 18 gauge solid 2 62 ...

Страница 64: ...Kep nut with star washer 9 Nut 4mm machine nut 1 Washer 6 32 flat washer 4 Ground lug 4mm 1 Stand off 6 32 x 0 375 4 Adjustment tool for potentiometers note 1 Wrench Hex 5 64 for 6 32 screws note 1 Wrench Hex 1 16 for 4 40 screws note 1 Wrench Hex 1 5mm for knobs 1 Wrench Hex 2 5mm for 4mm screws 1 Notes 1 1 16 and 5 64 wrenches and the adjustment tool are included with the Active Output parts 2 T...

Страница 65: ...64 Document version history Version Description 1 0 Original document 1 1 change select wiring colors ...

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