Summary of Contents for XOXBOX XOXIO I/O
- Page 1 Designed by BCBOX (Brian Castro) I/O Install Manual ver 1.06 PCB Assembly and install documents created by BOOSTER All original source documents and material created by BCBOX...
- Page 2 OVERVIEW Introduction The x0xi0 I/O & Overdrive kit is a rear panel mod for the x0xb0x. The kit requires good soldering skills and a general knowledge of electronics to be able to relate the schematic to the board layout if troubleshooting is necessary. If you built your x0xb0x you can certainly install the kit. The most difficult part for most people will be removing existing resistors &...
- Page 3 Diodes Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 1N4148 D301-D307, D309 1N5237 D308 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306 J305 J304 J303 J302 J301 R349 R305...
- Page 4 Resistors Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 2.2k_1/8W R320-R321, R327 1k_1/8W R318, R324-R325, R346 6.8k_1/8W R322-R323 1M_1/8W R301, R308 47k_1/8W R313, R331 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309...
- Page 5 Resistors Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 22k_1/8W R317, R326, R333-R334, R336, R338-R339, R343-R345 100k_1/8W R309, R314-R316, R329, R332, R335, R337, R347, R349 10k_1/8W R303-R304, R306-R307, R312, R328, R341 R317 R316 R322 R321 C318 C307 FIX1 FIX3 FIX2 R324...
- Page 6 Resistors Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 22_Ohm_1/8W R311 150_Ohm_1/8W R350 470_Ohm_1/8W R305 1.24k_1/8W R351 3.3k_1/8W R302 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306 J305 J304...
- Page 7 Resistors Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 4.7k_1/8W R319 15k_1/8W R348 33k_1/8W R330 150k_1/8W R342 220k_1/8W R340 470k_1/8W R310 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306...
- Page 8 Trimmers Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 100_TRIMPOT TM302 20K_TRIMPOT TM301 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306 J305 J304 J303 J302 J301 R349 R305 R302...
- Page 9 Ceramic Caps Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 270pF_CERAMIC C311 47pF_CERAMIC C302 100pF_CERAMIC C313 0.1uF_CERAMIC C303, C324, C328 680pF_CERAMIC C309 The ceramic capacitors also have their value marked on them. The (3) 0.1uF ceramics have 5mm spacing and say 104 on them.
- Page 10 ICs and Transistors Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference OP275 IC301-IC302 TLC2272 IC304 TLE2426 IC303 2N5088 Q301 BC549B Q302 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306...
- Page 11 Polyester Caps Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 68nF_POLYESTER C310 There are several different kinds of capacitors in the kit. The polyester caps 1.0uF_POLYESTER C323, C327 deserve special attention since there may be several different colors in the kit. Your kit will most likely include a few of the types shown in the picture below.
- Page 12 Electrolytic Caps Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 4.7uF_ELECTROLYTIC C321 1.0uF_ELECTROLYTIC C17, C314 22uF_ELECTROLYTIC C322 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306 J305 J304 J303 J302...
- Page 13 Tantalum Caps Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 1.0uF_TANTALUM C329 10uF_TANTALUM C330 It must be noted that if you have a kit with serial number 1 through 42 the silkscreen legend for part C330 is incorrect. The (+) side of the cap goes towards the top of the PCB, not towards the bottom as indicated on the PCB! R317...
- Page 14 Jacks, Switches and Pots Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference JACK_SOCKET J301-J310 R317 R316 R322 R321 C318 C307 FIX1 FIX3 FIX2 R324 VR301 VR302 SW301 SW302 SW303 J310 J309 J308 J307 J306 J305 J304 J303 J302 J301 R349 R305...
- Page 15 Jacks, Switches and Pots Product Name x0xio Instruction Ver. 1.06 Now is a good time to clean your PCB. If you’re using ordinary 60/40 You may want to test fit the rear panel to rosin core solder you probably have a lot flux residue. Cleaning pcb’s make sure they are aligned good enough.
- Page 16 Jacks, Switches and Pots Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference DPDT_PUSH SW304 Install the push switch. Solder one pin first and make sure you have it aligned and seated properly before soldering all the pins. Put the switch cap on and check alignment against the rear panel before soldering all the pins.
- Page 17 Jacks, Switches and Pots Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference DPDT_TOGGLE_(ON-NONE-ON) SW301-SW302 DPDT_TOGGLE_(ON-OFF-ON) SW303 Install the toggle switches. Begin by soldering in the front two pins and align the switch properly before soldering the remaining pins. You can use the rear panel to verify alignment if you need to.
- Page 18 Jacks, Switches and Pots Product Name x0xio Instruction Ver. 1.06 Color Part Number Reference 1MA_POT VR301 10KB_POT VR302 R317 R316 R322 R321 C318 FIX1 C307 FIX3 FIX2 R324 VR301 VR302 SW303 SW301 SW302 J310 J309 J308 J307 J306 J305 J304 J303 J302 J301...
- Page 19 IC305 Product Name x0xio Instruction Ver. 1.06 Solder in IC305, the voltage regulator. NOTE: This component is mounted from the bottom side of the pcb! Bend it a bit so that it angles away from the PCB:...
- Page 20 x0xio Installation Product Name x0xio Instruction ver 1.06 Preparation - Strain relief for CPU lines: It is a good idea to make sure you have some sort of strain relief for the (12) wires of J3 on the x0xb0x mainboard & I/O board. If there’s stress on any one or more of these wires at either side they will most likely tear loose from stress after flipping the PCB’s upside-down over and over again while installing the kit.
- Page 21 x0xio Installation Product Name x0xio Instruction ver 1.06 Conventions: Step 1 - Changes to standard x0xb0x parts - Pinheads: When the instructions are referring to pad A, pad B etc… it’s referring to the If you’re working with an existing x0xb0x you will need to remove and/or replace these silkscreen lettering designating each solder pad on the new PCB: components.
-
Page 22: Product Name
x0xio Installation Product Name x0xio Instruction ver 1.06 Step 3 - Accent Out (Part 1) Step 5 - Accent Out (Part 2) Connecting the Accent Out circuit is optional. It is not extremely useful unless you want to Cut a 5” piece of yellow wire and connect pad I to pin 13 of IC12: control accent on a second TB-303/x0xb0x or you want to use it to control a gate input on other analog gear. - Page 23 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 6 - Power Supply(cont) Step 7 – Overdrive(Cont) Use the 3” piece of 20AWG (thicker) green wire and connect pad C to R179 on the x0xb0x I/O Connect pad C to J7 Pin 2 on the x0xb0x I/O board. If you re-use the wires that are still Board.
- Page 24 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 8 - Filter Hi Range Step 9 - VCF Out & VCA In Cut a 6” piece of black wire and connect pad E to the emitter of Q10 on the x0xb0x Cut the trace on the x0xb0x mainboard between R121/R122 and R124: mainboard: Step 9 - VCF Out &...
- Page 25 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 9 - VCF Out & VCA In(Cont) Step 10 - VCO FM(Cont) Cut a 5” piece of red wire and connect pad M to the ring of the MIXIN jack: Cut a 5” piece of red wire and connect Pad K to R121/R122: Step 10 - VCO FM Step 10 - VCO FM(Cont) Cut a 5”...
- Page 26 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 11 - Accent Sweep Step 13 - Filter CV In Cut a 4“ piece of green wire and connect pad P to R72: Cut a 4” piece of white wire and connect pin U to R47 on the x0xb0x I/O board: Step 12 - VCO Out &...
- Page 27 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 14 - Slide In Step 16 - CV In & Gate In At this point the wires are probably starting to get messy. It’s best to just leave it that way Cut the trace between R88/R89/R90 and IC11 on the x0xb0x mainboard: for now until you finish the rest of the connections –...
- Page 28 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 16 - CV In & Gate In(Cont) If you are installing the I/O kit only cut a 9” piece of red wire and connect pad Z to IC12 Pin Step 17 - Panel Overlay Remove the rear panel so you can apply the panel overlay.
- Page 29 x0xio Installation Product Name x0xio Instruction ver 1.06 Step 18 - Slide switch Step 19 - Power Switch The slide switch mounts from the rear of the new panel. Use the 2mm screws, lock Cut the trace coming from the power jack on the x0xb0x I/O board: washers, &...
- Page 30 x0xio Calibration and finishing Product Name x0xio Instruction ver 1.06 When everything is done and tested the wires are probably a bit of a mess like this: TM302 – Power Supply. Check the voltage across pads C and D and adjust TM302 for 11.90V. There are many pads labeled C on the new PCB, they are all the same connection so you can use any one: Use the wire ties to neaten them up but make sure not to strain any wires in the process.
-
Page 31: Parts List
x0xio Parts list Product Name x0xio Instruction ver 1.06 PARTS LIST RESISTORS DISCRETE SEMICONDUCTORS 1/8W 1N4148 D301,D302,D303,D304,D305,D306,D307,D309 1/8W R311 1N5237 D308 1/8W R350 2N5088 Q301 1/8W R305 BC549B Q302 1/8W R318,R324,R325,R346 1.24k 1/8W R351 IC's 2.2k 1/8W R320,R321,R327 OP275 IC301, IC302 3.3k 1/8W R302... - Page 32 x0xio PCB Artwork Product Name x0xio Instruction ver 1.06...