Project
Projecttitel:TTSH rev2 Buidling Guide
Status: IN PROGRESS
Startdate: 13 Nov.2014
Duedate: 15.Dec 2014
Manufacture link: dsl-man.de
The second PCB release aka v2 release is coming soon. the naming of v2 is related to the second sale from zthee, its not the same as zthess internal releasenumbers.
short:
- solder all SMD parts, clean this area after soldering if needed.
- mount 5 spacers to the pcb in order to have enough space for the resistor legs between your desk and the pcb.
- sort all the bags containing the resistors after the range: 1R -999ohm, 1k - 9,9k, 10k - 99k, 100k -999k, 1M - 22M, sort all caps to MLCC and electrolyt caps too - it makes things easier
- mount the DC-DC regulator (black square) and put the 4x 4n7 caps on the backside
- mount the powersection parts, power input header (white 2pole MTA156), the 3 inductors, resistors, caps..
- make a powercable with the 2,1mm pc jack (make sure you run a diode test with the 2,1mm jack - one of the poles is the switch, you dont need them) be careful !!
- before you connect the wallwart psu to the jack/plugs of the pcb, test the 12V DC polarity on the 2pol orange jack.
- connect the orange jack to the pcb header andplug in the wallwart
- test the -15V/0/+15V output on the PCB
only if you measure -15/15V you can continue building, otherwise you'll likely destroy all trannys, ics and other parts..
- build all 3 VCO Subboards - otherwise you'll have trouble with looking for the parts of the main pcb, this is strictly recommend (you start with resistors, caps, ic sockets) tempco and trannys are not needed yet.
- MAIN PCB at first only one side of the pcb !! at first fill the resistors in order to spot any leftover resistors.. then go to the next value.
- place all 100K resistors
- place all 1R 10R, 100R , 1k, 10K 1M resistors 22R,220R,470R, 330R,3k3, 33k,330k 3m3, 470r, 4k7,47k, 470k, 4m7, 680R, 6k8, 68k, 68k, 820R, 8k2,82k you can fill the values like 69k1 or 33k2, 54k3 later...
- completely solder all resistors on the top side
- turn the pcb, cut the legs a bit shorter in order to be able able to solder them
- solder this pcb side and cut the legs
- put all the resistors on this side of the
- turn the pcb cut the legs, solder the reistors, cut the legs short
- fill the pcb with all ceramic caps (MLCC) like 3p3, 5p, 10p, 20p (22p), 33p, 47p, 100p, 2n2, only MLCC caps not filmcaps here..
- solder the ceramic caps from the top, if the cap touches the pcb - put a small pice of cable (isolation) between pcb and cap to have enough space for soldering
- turn the pcb, solder the caps and cut the legs short
- turn the pcb again and put the few filmcaps in place step by step - it's easier to place the filmcap and bend the leg on the other side of the pcb - so that the cap doesn't fall off - solder the fimcaps from the backside and cut the legs.
- put the ic sockets in place step by step - maybe you have some help from someone fixing the sockets
- now take a break - if you haven't done before