ISE-NIN Build guide

BOM: 

ISE-NIN-BOM-REV1.0.2.xlsx uploaded 24.Nov.2022

ISE-NIN-BOM-REV1.0.1.xlsx   updated by BC on 24th.Sep.2022

ISE-NIN-BOM-REV1.0.1.pdf. updated by BC on 24th.Sep.2022

Add to your order: ATS-55250W-C1-R0 (from the) its a 1inch cooler for DC-DC PSU (read the issue list) 17.Nov.2022

the Mouser project can't be shared anymore, its the best that everyone create a own to their requirements.

too much parts are out of stock and its highly recommend to order by other shops too.

Tme.eu is a good place for European users. (EU)

other sources are digikey, Distrelec, RS, farnell, reichelt, Conrad, Uk-electronik, banzai (call the guys about the stock), thonk.

here´s an excel with some parts which I ordered by tme (it doesn't include all- but some parts are here much cheaper and in stock)

TME-order-ISE-NIN-partial!!.xlsx

some notes:

the tactiles are out of stock by mouser - use tme.eu or other supplier.

for the 3900pf caps, you can use polypropylene caps 

use eBay or tme for the SMT caps to safe money

Tempco resistors and matched pair transistor are available by me:

https://www.diysynth.de/diy-components/passive-komponenten/tempco/tempco.html

https://www.diysynth.de/diy-components/aktive-bauteile/gematche-transistoren.html?language=de

The ssi2131,as2164,as3109 are available as a bundle by

https://www.uk-electronic.de/onlineshop/product_info.php?products_id=5024

Issues: have a look at the ISSUE lists below for changes!!

the part number for the trimmer at mouser isn't correct (more information - it’s described in the "Issue" list)

Information on the content of the DIY-Kit

The case and panel are included with the kit.

"The additional parts include:

Enclosure and Frontpanel

19" Rack Ears x2

Display Lens x1 (in the blac Noise IC Box)

Sliders x2 (Center detent)

Potentiometer 20k Lin x7
Noise IC x1

ALL MOUNTING HARDWARE: Screws, Nuts, Standoffs(Spacer, L-Bracket for the Breakoutboard pcb)

(Motherboards have all DACS, CPU, audio CODEC, and headphone amp already mounted on them).

Currently identified Errors / Omissions / Errata:

Issue ID	Date	Location	Type	Identified issue	Resolution	related for development	affected PCB version	fixed Version
1	30 Aug. 2022	BOM - Voices	ERROR	Mouser part number for the trimmer is invalid	Line 180: 652-3296X-1-103RLF Line 181: 652-3296X-1-104RLF	BOM 1.0.0 and 1.0.1 update needed	--	BOM 1.02
2	30. Aug 2022	BOM - Mainboard	INFO	the 220uF caps on the Mainboard are BI-POLAR  -	respect the BOM partnumber
3	07 Sep. 2022	Hardware Board	BUG	there's no Pinout described on the Hardware Board for the OLED -	please read the INFO section in the next table on  "OLED  selection" carefully	can be improved with better silkscreen information	1.0
4	13 Sep. 2022	BOM: Voices	INFO	the Mouser BOM shows 32x 240pF C0G capacitors for the Voices - used in the OTA Filter. These are 10% tolerance.	you can change the capacitors to Polypropylene, Silver MICA, Styrene - with 1-2.5% or match good capacitors in this range with an LCR meter (check the data sheets of the meter)	-	-	-
5	13.Sep.2022					create a Silkscreen for MTA156 Powerheader pinout	1.0
6	29.Oct.2022	Voices	BUG	Sync doesn't work correct	remove on every Voicecard IC3 (TL064). bend Pin 12 of the TL064 outwards, install the IC3 back in the IC socket and solder a resistor leg from Pin12 to Pin10 as shown:	fix the PCB routing	1.0
7	17.Nov.2022	PSU card	INFO	The DC-DC converter goes very hot after 30minutes, but its within the data sheet specs (65degrees Celsius is the max. operation). The 65 degrees can be reached in Summer or other conditions (few hours operating time) But for longterm stability of the components, I highly recommend the usage of a big cooler	install a 25x25mm cooler with an high of minimum 20mm. I found on tme.eu a product with self adhesive foil and 24.5mm height. the temperature of the DC.DC converter is 51 degrees after an hour on the regulator and 43 degrees on the cooler. TME Part nr. ATS-55250W-C1-R0		1.0	BOM 1.02 is updated for this !!

Important Information before you start assembling:

PCB Scan Pictures (thanks Janne.I)

ISE-NIN_PCB_SCANS.zip

Build guide: ( in progress)

Power supply PCB (PSUb) -

1. install the resistors and diodes
2. install the ceramic capacitors (not the electrolyte caps yet)
3. install the TO-220 regulators (IC4, IC5, IC7), the black isolated regulators do not match with the pcb holes, its not important. bend the pins as short as possible that they can be soldered from the rear-side of the pcb
4. install IC3 - I prefer without a socket for better thermal regulation, but should be fine with a socket too.
5. install the electrolyte caps
6. install the LEDs - LED orientation - the square pad is ground (short leg) its the flat side of the LED designator
7. install the fuse socket and MTA 156 2pole header
8. install the DC-DC bricks (IC1, IC2)
9. Double check the IC orientation and part values, Capacitor polarity 
10. wash the PCB carefully and let they dry over night 
11. optional - use a bench psu for testing with current limiter 12v/250mA don't use a smaller current limit to avoid problems while start, the 250mA is a given value without any devices connected
12. must do: all LEDs must be on, check against the given PCB voltages - all voltages must be correct
13. Install the Heatsink by the self adhesive tape and push the heatsink against the DC-DC for 20-30seconds (new task since 24.Nov.2022)

first test on a bench PSU with current limit at 12v/200mA

Breakoutboard (BB)

Start with the SMT parts on the rear side and IC4.

here´s an example how this has been installed by me, add some solder on one pad and heat up this pad while you move a capacitor with a tweezer to the location, then add some solder on the other side too, normally no extra flux (fluxpen) is needed but depends on your skills. 

1. install the SMT capacitors and IC4 (the dot on the PCB is pin1)
2. install the resistors - solder all pins.
3. install the ceramic capacitors - solder all pins
4. install the IC sockets - standard IC sockets preferred - solder all pins after you have checked the alignment
5. install the power socket, MTA156 header, 16pin IDC connector
6. wash/clean the pcb before you install the USB socket, MIDI socket, Audio jacks
7. wash/clean the pcbs carefully with respect on ESD safe handling 
8. install the USB and Midi Socket, Audio jacks
9. Double and triple check the IC orientation

Mainboard (MB)

the heart of the ISE-NIN must be build really carefully !!

you need an ESD map and ESD safe handling (tools) - because the uController is preinstalled and can be destroyed due to wrong handling.

I really prefer to use a Soldering frame - Ideal Teck PCSA-4 (the MB and HB-pcb fits perfect)

1. install the SMT capacitors as before described in the Breakoutboard section.
2. install the resistors - read ISSUE ID2 and respect in the BOM the resistors which are not populated - this info is at the end of each section in the BOM. fill the solder holes or use a tape/pen to have a notice there. otherwise it can be confusing.
3. install the ceramic capacitors - solder all pins
4. install the IC sockets - standard IC sockets preferred - solder all pins after you have checked the alignment
5. install the Transistors/regulators, quartz - do not overheat the pins here
6. install the Filmcapacitors/Electrolyte caps and solder one pin - align the capacitors before you solder the second pins.
7. install the EDGE connectors - solder only at top and bottom a pin and check the alignment, solder from left to right to minimize overheat problems with the connectors.
8. don't forget to solder bridges at the white flat line on the EDGE cards as shown in the above table.
9. check the soldering on the EDGE card pins carefully for shorts/solder bridges.
10. wash/clean the pcbs carefully with respect on ESD safe handling 
11. install the ICs 
12. Double and triple check the IC orientation ( tip: mark with a pen all ICs which did you checked)

do not install the 10pin headers/pins yet (we put the header on the pcb later - when we have finished the controlboard - to get the best alignment)

Hardware Board (HB) (sometimes called Controlboard)

1. we start with the PCB side with the IC sockets, the rear-side which is connected to the Mainboard (as shown in my pictures)
2. install the SMT capacitors as before described in the Breakoutboard section.
3. install the resistors - solder all pins.
4. install the ceramic capacitors - solder all pins
5. install the IC sockets - standard IC sockets preferred - solder all pins after you have checked the alignment
6. install the transistors - do not overheat the pins here
7. wash the pcb carefully with isopropyl and soap with handwarm water up to 50C Celsius.
8. Install all ICs when the pcbs are dry
9. double and triple check the IC orientation ( tip: mark with a pen all ICs which did you checked)

do not install the OLED yet - to avoid damages and dust on the screen

do not install the headers /pins yet

do not install the LEDs yet, no sliders , no potentiometers for now !!

because you have to clean/wash the PCBs before we can proceed - jump to Voicecard assembly until the pcbs are dry. (normally overnight in a warm room)

Voicecards:

assemble the voices until the other pcbs are dry  - do not install the trimmers until you have washed the PCBs!

1. install the SMT capacitors as before described in the Breakoutboard section.
2. install the SMT ICs
3. install the resistors - solder all pins, do not install the Tempco Resistor yet
4. install the ceramic capacitors - solder all pins
5. install the IC sockets - standard IC sockets preferred - solder all pins after you have checked the alignment
6. install the matched Transistor pair (2N3904), regulators - do not overheat the pins here
7. look in my above guide - about the 240pf capacitors - maybe you have to select or match something - its not needed but for some builders just a notice
8. install the Filmcapacitors/Electrolyte caps and solder one pin - align the capacitors before you solder the second pins.
9. wash the pcbs as described before 
10. when the pcbs are dry - install the Trimmers
11. install all ICS
12. install the Tempco resistors  - this must be thermal connected, use thermal paste
13. use shrink tube for the 2N3904 pair and thermal paste
14. double and triple check the IC orientation

Hardwareboard part 2: (read this before you start)

1. install the 12mm spacer on the HW.board,
2. then put on the mainboard the opposite part
3. then put the boards together and fix the pcbs with few screws on the spacers
4. then solder the 10pin dual row header/socket all pins - solder both parts completely before you remove the pcbs again (otherwise some pins can be accidentally removed)
5. clean these solderpoints with eartips carefully.
6. remove the screws and disassembly the pcbs
7. --------
8. install the sliders on the Hardware Board, and carefully solder them - pin by pin - as described in the above table (do not overheat the parts)

finally we can move to the last steps which can be done in different ways

9. install the tactile switches and solder these, solder 1-2 per switch - not all pins together to have less heat on the part.

10.  the last parts can be installed with one step or step by step - but in this case, you have to remove the frontpanel a few times. (customers with experience from DDRM/Kijimi can try to install the pots, OLED, LEDs, tactiles and the tactile caps in one step)

11. cut/remove the locker pin on the potentiometers   

12. the potentiometer must be installed with the front panel attached for best alignment - please note: one Potentiometer is not Center detent !! its marked on the pcb without an line in the circle.(volume pot)

13. the potentiometer have to sit on the pcb - do not try to to install the potentiometers in a higher position (or you can run in problems with the knob height)

14. there are 2 options how to do that.. but my shown option should be the best with separate nuts (no wobbling pots)

DO NOT try to install the nut on the frontpanel side !!  install a nut as shown below .

15. OLED - install 2x M2 5mm Spacers on the OLED (you dont need 4 spacers) and respect the pinout as described in the Information List ID2  - its important to double check the pinout and measure the GND pad of the OLED against other GND pads on the HW.Board.

be careful with the OLED !!

LEDs:

here´s an example how to install the LEDs easily:

Put the HW board on the Mainboard:

install the spacers (12mm spacer between HB and MB) put the MB on the HB - then solder the headers on the pcbs

mount the bracket on the BB pcbs with 2 screws.

Cable/wiring:

We use MTA156 headers which can be used with cables of 1.5mm2 maximum.

the current is 1300mA at 12V under load, cable length is 0.5m max. 

A = ( I x 0,0175 x L x 2 ) / (fk x U)

result is 0.75mm2 for 1m is safe !

(0.5mm2 is fine too since I used in my calculation 1meter and 2Amps)

testing

Test the PSU without BB - on a bench psu with current limiter 250mA only the PSU.

with mainboard connected 1000mA (without Voicecard)

with one card try 1000mA- with all cards up to 2.000mA

The OLED and LEDs will only work after you have installed the Firmware !! (some leds are on without the firmware)

Firmware Installation

The latest Firmware is on a separate page : ISE-NIN Manuals and Firmware

Instructions for Flashing

• Connect STM LINK to the Motherboard with the ribbon cable from the programmer and connect the STlink programmer with your Mac or PC

• Turn ISENIN on

• Open STM Cube Programmer  or ST LINK utility (cube programmer is the latest software, but STlink utility is fine too and often better)

• Select ST-Link, select connect (which reads the ISE-NIN uC memory)

• Select erasing and programming button (in STlink utility its "program & verify)

• Browse select ISENIN 1.0b-1.hex file from your pc/Mac. -   Start programming ***
• Repeat the procedure described above and select ISENIN 1.0b-2.hex     Start programming as before (program and verify)

***you don't need to restart the ISE-NIN after first programming step, in case the ST-LINK tool hangs, just reconnect the USB cable.

• Disconnect and restart ISE-NIN – its important to remove the Programmer from the ribbon cable - or the device will not start !! 

Calibration

Instructions for Calibrating

Resonance Calibration

Here is a step by step guide to calibrate the filter resonance: (ONLY AFTER that you need to calibrate filters in further step)

It´s recommend turning the resonance trimmer TR1 fully clockwise on each voicecard to make this procedure as easy as possible!

The best way is to use 8 resistors on the mainboard for making a measurement.

1. Warm up your unit about 30-40 mins

2. turn on ISE-NIN, Go to menu (press shift (grey cap button) + Back (middle button under the display), then calibration, choose resonance (The display should read: "card 1" and you should hear a test tone through the outputs (for the next voice card you can press the "next (Back)" button to cycle through the voice cards)

3. Connect a Scope probe on the Mainboard, to the resistor of the card which you calibrate , set your oscilloscope to "timebase 0.5ms/cm" and "1V/cm" (on DMM: 0.5V -1V is fine too, depends on your scope screen resolution - some new scopes are HD resolution in 720p or more and the ADC are very accurat)

4. You should see the filter signal on your scope. If you have turned the trimmer fully clockwise the signal should be- and sound distorted. now turn the "resonance" trimmer TR1 on the Voicecard anti- clockwise until you get a clean signal as in the picture below (The difference of maximum and minimum amplitude in one cycle has to be 4-times.)

make sure to have enough gain otherwise the Filter calibration step will fail as described in next section.

Comment from Black Corp: "We especially made all settings in resonanse calibration how they should be (square, cutoff, 12db etc)."

Congratulations, you have successfilly calibrated the filter resonance for all of the voices!

Resonance calibration Method according to the Roland Jupiter-8 service manual (not recommended yet → use above method!!!):

Go into  MENU, CALIBRATION, RESONANCE.

Follow these steps from the Jupiter 8 manual, turning Trim1 for each voice (or see below):

Workaround

or turn Trim TR1 until the self oscillation is off on each voice.

you can switch between the cards using the switch button on the mother board. 

Respect the Cross Mod TRIM vs Cross Mod Calibration - this steps must be in the correct procedure

History: (limit 10 versions)