The ”New” GssLComponents Placement Manual [DATO] READ THIS A WORD OF CAUTION THE NEW GSSL If you a using this manual to build a unit, chances are you probably haven’t had much prior experience with DIY electronics. I have tried to make it as easy as possible for you to get started, but I really don’t want you to get hurt, so remember… Electricity kills! The risks involved in following the assembly guide to place the components are limited to burning your fingers on the soldering iron, falling off your chair and banging your head in the table, but you should consult a professional before adding power to any projects to make sure everything is safe. THEN READ THIS AND A FEW HINTS Print the resistor chart located at the back of this manual and the board layout on the product site before getting started. You can check off resistors on the list when you have placed them to keep track of your work, and you can consult with the PDF board layout to make sure you do not leave any unwanted solder bridges as you move forward. MANUAL BY GUSTAV GRINDERSLEV HTTPS://PCBGRINDER.COM https://pcbgrinder.com And with that, it’s time to fire up your soldering iron, meter and pliers (You do have a soldering iron, a meter and a pair of cutting pliers ready, right?) an electrical component designed to introduce a known value of resistance into a circuit RESISTORS The resistors are all marked on the PCB layout with rectangular boxes containing R, K and M values (ohms (R), Kilo-ohms (K) and Mega-ohms(M). Ignore the %-markings, unless you use vintage DBX202 VCAs It’s pretty hard to screw up the placement, and they do not have to face any particular direction. What’s most difficult about the resistor is getting the correct value. Values The bands are a colour coded, but I recommend that you use your meter to measure the value before placing them – it is very simple.. 1. Set your meter up to measure resistance (Omega symbol) 2. Measure at each end of the resistor (Touching the component will add resistance and give a faulty reading, so a pair of alligator clips will come in handy) 3. Place it in the PCB, solder it in place and check it off on the list of values you printed before getting started https://pcbgrinder.com 4. snip off the excess leg (and save those for later)… You can buy some gold plated custom made jumpers when you have more money than sense. which means you will have to add a “jumper”.com . just use the excess legs you snipped off of the resistors. (Make sure to jump the HPF if you’re not using it) https://pcbgrinder.JUMPERS There are a few connections on the PCB that are simply marked by a line. but for now. DIODES An electronic device that restricts current flow chiefly to one direction FORWARD FLOW The diode is a directional component. The ones provided with the “New GssL” kit are all 1n4148. You just have to make sure you face it so the black ring points to the end with the line across on the silk screen as pictured. and they each have a black ring in one end. https://pcbgrinder.com . so the value is easy to figure out. IC SOCKETS INTO THE GROOVE The IC sockets are not a necessity.com Guess what – You have to match those up! . but they do make it easier to place or replace ICs if needed. and you avoid soldering directly on to the ICs. If you pick one up. you will notice a small bump in the end of it.. https://pcbgrinder. and if you look at the drawing of the ICs on the PCB silk screen you will notice a little bump in the end of it. 22p. You might wonder why the 100p cap has 101 printed on it.the third number states how many zeroes you should add to 10. which makes it 100… You should have no problem finding their locations on the silk screen. 33p and 100p.PICO POWER The Ceramic capacitors are 10p. CERAMIC CAPS https://pcbgrinder. and they are not directional. which is 1. but wonder no more .com . com .POLYESTER CAPS NANO POWER There is only one type of Polyester Cap in the kit.B. Figure it out yourself. I left out the VCA sockets by mistake. it is non-directional and you solder it in everywhere it says .1 on the silk screen. and you’re worthy of a GssL (look at the picture) An electric circuit element used to store charge temporarily https://pcbgrinder. N. You can identify the positive side in one of two ways 1.com .8uF=6u8) are written on the caps and on the PCB. The longest leg is + https://pcbgrinder. The + is printed on the component 2. 6. The two values (0. and you match the positive side with the plus on the silk screen.47uF = u47.TANTALUM DROP CAPS DROP THE POWER The Tantalum caps are directional. com .S.ELECTROLYTIC CAPS (ELCOS) POWER SILOS The Electrolytic caps are directional. If you’re building it in a 1 unit case. The value is printed on the cap The + side is easily identified by the longest leg. (pictured in the top corner . and you match the positive side with the plus on the silk screen. or you can see the minus symbols down the negative side… P. make sure to tip the highest elcos.(I almost forgot)) https://pcbgrinder. RECTIFIERS BRIDGE There’s also a round bridge rectifier. and you place them with their backs faving to the double line on the PCB. It’s the round thing. (It will make sense if you just take a quick look at them). and you put it in the circle and put the + leg through the square hole (Turn the PCB around to make sense of that) THE “PACKAGES” The value is printed on the components and the PCB. These guys regulate the current https://pcbgrinder.com . SWITCHES GUESSING GAME Some switches have two poles in the centre.com . https://pcbgrinder. You’ll have one switch left with 4 centre taps – Save that for later. It doesn’t matter which way you turn them. Some of the switches have four poles in the centre. as long as you find the slot with the corresponding amount of pins. com . it should look something like this https://pcbgrinder.MOLEX CONNECTORS ALMOST THERE If you add the male molex connectors to the board now. MOLEX CONNECTORS ALMOST THERE If you add the male molex connectors to the board now. it should look something like this https://pcbgrinder.com . https://pcbgrinder. but its best to wire them through the PCB As you can see. it will be as easy as pie. and if you tin the wire before soldering. you can cut the molex connectors for different color wires to mount the pots and the bypass I prefer to mount them on the back. but if you lay out the case.BUST OUT THE CABLE The pots need to be wired. these cables turned out a bit too long.com . You can always shorten everything and tidy it up when you’re done mounting the boards in a case. POTS Tool tip I forgot to do it in this build. but it’s not that hard. com .LED LED AND BYPASS SWITCH Make sure to put the longest leg through the hole closest to the corner. And should be wired like this THE BYPASS SWITCH It looks like this https://pcbgrinder. Make sure the letters on main PCB are wired to corresponding letters on control PCB (Check the screen) https://pcbgrinder.com the the the silk THE METER Now all you need to do is add the wires for the meter (marked on the control board as M+ and M-).CONNECTING THE PCBs MAKE A CONNECTION The 10 pin connector on the main PCB needs to be connected to the main board. and the PCBs are done . power jack and meter included from Frontpanels.UNKOWN TERRITORY Up till now. I have been showing you how to add the components included with the kit. For this next section.de (It is cheaper to buy a blank case and a cheap meter.com . shrink wrap and some mains wire Shopping list https://pcbgrinder. bolts. but Franks service and quality is easy and great) • A 2x15 Toroid and a fuse • The odd screws. I will be using some things not included… • I purchased a Case with XLRs. CLICK CLICK PCB SWITCHES You have to “program” the switches to the correct amount of turns. They will be held in place by the PCB when you mount it in the front panel. Put the center tap in slot that corresponds to the number of steps you need on the switch as pictured. and the pin would be in the way. https://pcbgrinder. but don’t worry – it’s purely mechanical.com . Ratio = 3 Attack = 6 Release = 5 Snip the anti-rotating pin on the switches attached to the controlboard. wires to + and – on the meter https://pcbgrinder. so in order to avoid rotation when you turn them. you have to use the anti-rotate peg. but at this point. you can de-solder them one by one and trim the length if you’re into that sort of thing . Drill a small hole in the frontpanel to secure it (and program the bypass for two steps (in/out) ) THE WIRES METER Attach the M+ and M.com You already attached the bypass switch and the pots at an earlier stage.ON/OFF – IN/OUT These switches and pots are running solo. com . (Sorry about the lack of focus) MAIN PCB AND TOROID https://pcbgrinder.LEGS AND PEGS Drill 4 holes in the case for the main PCB (3mm) and one for the toroid (measure your bolt for diameter) and place the PCB using the PCB mounts. com .MAKE IT SPEAK If you look at the PCB and the XLRs. Solder the +-pins from the PCB to the connectors marked with a 2 on the XLRs Solder the – pins from the PCB to the connectors marked with a 3 on the XLRs Leave the middle wire hanging for now (Back in focus!) XLR https://pcbgrinder. you will see numbers on the XLRs and markings on the silk screen. but I prefer to move it over to light the meter. Snip off the LED from where you soldered it in earlier. and you have a lit meter. add some wire and shrink wrap it (longest piece of wrap for the +leg!) and connect it back to the control-panel PCB same as it was before. Please it on top of the meter with a small piece of glue.LED LET THERE BE LIGHT You can design a case with a hole for the LED or drill a hole for it. (Skip a few pages ahead and check the overview if you are confused) https://pcbgrinder.com . injured or killed CONNECTING THE TOROID (1) SECONDARIES You should have a Toroid with 2x15 secondaries (primary will depend on your country). combine the end of the first secondary with the start of the second secondary (blue with green). (the trafo used in this manual says “red blue/Green brown”.WARNING Hire a professional EE or electrician to help check your work if you are not experienced with electronics. You risk getting shocked. The colors on the wires will vary. and you need to wire them in series. but they are written on the side of the toroid and refer to the start and end of each winding. as an example) To wire them in series.com . and the two remaining single wires go to 15 V pads on the sides (It should be obvious if you look at the PCB) https://pcbgrinder. The combined wire goes to 0V on the main PCB. Place shrink wrap on the toroid mains wires and the cables from the power jack before you solder them to the switch. https://pcbgrinder.com .POWER JACK & TOROID TO POWER SWITCH 1. Connect two wires to the Power Jack and place shrink wrap over them CONNECTING THE TOROID (2) 2. If you set your meter to beep-mode (What’s that in English?) you can easily double check that you set up the toroid mains and the power wires so they both break in the off position.com .POWER JACK & TOROID TO POWER SWITCH 3. CONNECTING THE TOROID (3) 4. and use your own or your girlfriend’s hair dryer to shrink it https://pcbgrinder. Make sure to cover the connectors with the shrink wrap. https://pcbgrinder.com . B. N. • Connect the stripped wire to all the ground connections on the XLRs (marked on the XLR with a 1) • Connect the input ground to the wire • Solder a wire to the ground connection (middle) on the power jack • Drill a hole and connect a screw with a terminal on your back panel.com .GROUNDING GROUNDING • Cut the middle leg on the molex for the output XLR and strip a piece of wire. • Measure to check the connection. Voila – you´re grounded.(After taking this pic. • Connect the wires at the terminal. I learned that the grounding should be as close to the power jack as possible…now you know too) https://pcbgrinder. com .ICs & VCAs There’s a dot on the ICs and a mark on the VCA. It’s probably hard to see those markings after soldering in the sockets. but you can check with the PCB layout PDF. You should place those in the dots and markings on the silk screen. CHIPS You should check your voltages before adding these– it might save you a fried component https://pcbgrinder. IF YOU ARE NOT AN EXPERIENCED EE. You do not want to risk the bolt holding the toroid touching the case. You https://pcbgrinder.com . and consider padding the case to avoid contact. HIGH VOLTAGES ARE LETHAL… What I forgot to write in the manual. 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