Got it thanks.

Woke up thinking about the set of jumpers that come together in the K4 section of the board.  It looks like it may be an alternate or parallel path for the digital part of the signal going to the primary coil.  It comes directly out of pin 4 of 4046 thru the 22K resistor through wire down it looks like it goes to PRI-S and #1.T1P120.C   (Connected to left side of 1N5408 and right side of 1N4005).  My guess is the up wire goes to power and 22k is a pull-up resistor.  This would bypass the frontend stages of driver circuit. 

We currently do not have any of this in the board traces.  What was there was all mixed up and non of this is in the schematics.  This is what I see not sure what it does may have to wire it up on my test board to find out.  Note you can see these wires in Picture of Stan's board above. 

I will try to see you what I thing this should look like just wish I knew where up wire ends.

ok Thanks Earl seams correct path about switch by pass

====================================
Earl can you glance at the picture attached  and confirm the traces in  yellow circle in   ?
  these open trace npn pnp connection from Vic  to the daughter board 

if so please connect dots w ay you think is correct and I will start to hard wire the daughter board and
vic into 1 board so assembly time testing is reduced  i think that would help every one trying to learn

Dan

Looked at left side of board which is most of K9 there are parts which are off board.  I did not find any changes.  A26 at the bottom of board was not in original schematic but was added to provide a was for Gas Feedback system to turn cell on to maintain pressure.

You could make the large capacitors next to it part of the K9 part of the board even though they are not on schematic.

I also double checked that I had traced each of the board output pins to where it goes on the VIC board.  I added schematic name to help which identify TIP120 to circuit and and transistor name in circuit.  This will help me when looking at task above.  I think at that point I have gotten through every thing on the board.

Looking at Signals on VIC Matrix. VIC and VIC Daughter Boards

GASFG
From DGF1 screw connectors to VIC pin 1 GASFB - (It should be SIGNAL or OUT 6   ).  OUT 6 goes to K8 just before the Run Accel/Speed CAL switch and the offset pot so it may not be at correct level.  Have not looked Gas Feedback circuit at all so do not know what is on Signal connection.  In case signal should look like J.

[G] goes to Cell Driver Circuit which is on the VIC (this is the digital signal with the gate in it)

I updated the table above to add the 4 connects between VIC and Daughter boards.  I also created a second one for just the Daughter board so I could keep all the connections straight.

I can provide tables in Word document if you want them that way

Dan

I am going to try to provide steps to add patch in K4 section of the board you can see on Stan’s board.  We need to add 3 wire a new 22K resistor and fix attach the capacitor to correct 22K resistor. 

One of the wires runs from the 4-way switch landing pad 1x to the right side of the new 22k resistor we are going to put in place of the unused 1K.  (This will replace one of the blue wires in VIC photo we have already fixed the other blue wire).

First move the top side connection for the 0.33uf capacitor up from existing 22K resister to new 22k resistor to connect to correct resistor.  Leave connection to small landing pad on right as new top trace from 1x will connect to it.
 
We will need to add both wires on the left side of the 22K. One goes down to left side of 1N5408 diode.  We can do this by adding a top trace straight left to first large top trace.  (Note: we removed the trace like this that was there as it was connected to wrong 22K)

The only thing left is to add the wire on left side of new 22K going up.  Problem is I am not sure where is goes.  In the photo you can see it going under 100uF capacitor at top of board. If we assume it is going to power like as it would if 22K is a pullup resister we can top trace to left side of 100UF (or the left side of the 470 that has a bottom trace going to left side of 100uf).

This will add another connection digital connection going directly to PRI-S on VIC pin 10 without going through the amplification stages of the of K4 (top side routing).  At the same time using bottom side routing out the 1N5408 it will go to VIC pin 11 #1.TIP120.C

I have also added these steps in shorter form under the gerber photos I marked up.  There are things that need to be done on both the top and bottom traces.  I also reposted the photo of original board for reference.

Hi Earl
Nice O am processing the info above
For Left Side I have added the References to indea at base  and boxed k9 etc
I kept big cap separate for now
 if any other areas to identify on board we can  make note as we did for a 26

On this what do we know about these remaining yellow areas as notes?
and I will add the notes

Hi Earl Re the in out Chart nice it helped,  must have looked at this 1000 times now each time it improves

So I have added more labels to Vic Daughter board showing pins out with vic reference now so better
I will adjust the Vic out pins to match also better

I have run the hard traces from
Vic Daughter board to Vic
Q5B Tip
Q3C Tip
Q5C Tip
Ground
5c
12v
Q4E Transistor
Q3B

Ones I not Connect Yet  on  VIC card Out pins

Pin 17    G Line Looks like k11 Digital Control Means so if agreed that done I will hard wire in matrix v2 as changing interconnect to db37
===================================================================
Remaining to solve
===================================================================
Last one if all above is agreed is the Gas feed back line going into VIC pcb Pin 1 in from Matrix Mainboard
As far as I can see it may be from either 11/12 output or out 6 on the GASFB  this i am not sure of please see if easy to see ?

Dan

Re Changes on VIC Resistor etc etc I am working through the vic now Checking also may take a day for me to go through it again
including more labels better match descriptions on out pins to daughter board /matrix  and than
we both need to go over it again as detailed changes

Dan

I did look at the 2 items going to the Digital Means board at some point in the past and traced them to the pins listed on VIC just do not know what they do as Digital Means is another board I have not looked at in detail,  I had trace connection, so I can verify that is where they go.

I also plan on looking at rest of jumpers on original VIC board to see if we need to make any other changes.  I know I forgot to tell you that the ground traces in K9 area of board are not connected to reset of board. I think there is a jumper to do this.

I had high lighted K21 area in this picture the blue boxes I choose do not show up very well.  K21 and K22 overlap at bottom of board as they both use the same chips.

Large capacitors are part of K9 just not on schematic but I can say the same thing for all the filter caps in all the other circuits as well so I would include them in K9 section.

[G] is the digital signal with gate.  I know I needed it in my test system as K9 and K21 are on separate boards but do not know if Stan used it anywhere else.

Tracking traces is a real pain especially when signal feeds back.  I have looked at things and decided it is all wrong then looked again a found it is right.

things sent  working on the correction and adjustments above allow 1 day so i can look close as like a spaghettis mess easy just takes time

i will post v 1.6 soon

So would this be correct for K21  boxed yellow
with note
if so i adjust now

Box is correct the two chips that are shared are the left 2. 

By the way my note about MC14001BCP being an 16 pin chip was wrong, found I was look at wrong information.  But turns out MC4001BC is a cross reference equivalent item along with several others. The Motorola part is just harder to find.  This part also appears on K3 which why I was checking again.

Little change of pace.  As I decide to use the BNC connectors for test points I wanted a way to hook up by scope to them.  I had used banana connectors on my test system but they turned out to hard to used.  You can see then in original test system in back.

On the new panel with BNC test point you can see adapter I found to hook scope without a BNC probe.  I like this one, I had tried the larger one with banana connectors but was not happy with it (example on left).   These came in a package of 10 with 5 male and 5 female connectors.  I have been using similar ones for my power connections you can see one of those in back of board.   I have been very happy with those and it make it easy connect and disconnect power and I like the screw terminals.  As usual found them on Amazon.

can you circle where patch is so i can review closer Dan
i ref hms and deep saved pics for ref
Dan

Above just notes for Vic things I am still working on correction version 1.6
post gerb soon for review

Thanks the hand drawn board is very useful.  It does a nice job of showing all the off board connections and had the landing spot for the upper end of the patch.  I believe the all the switch does is select which analog signal goes to the test point.

The first picture I circled the patch in yellow you can see where the upper line disappears on the capacitor.  You can also see lower capacitor is part of the patch (hump in circle)

In the second hand drawn picture I circled the landing point of the upper wire in brown.  This was the piece I was missing still not sure if anything else is on that landing point.  I had traced the wires from the switch to the upper landing pad just did not know what was on them.  Make sense now.

You can also see in hand drawn to the left of this patch the big red wire that is also a patch to the power.  Need to check to see it this still needs to added.

ok very good Glad we solved that one
Dan

K3 Gated Pulse Frequency Generator New board testing on VIC Matrix

I decided to compare K3 board traces against the K3 schematic before I tested it as I have everything installed on board except SH74122n chip.  It looks good couple of label corrections

The 2 Q1 chips are labeled 2N3094 them should be 2N3904.

While correcting those it would be helpful to label GND and Signal on test landing pads (GND is closest to board edge).

The Cell ON/OFF needs to have GND going to switch as closing switch connects the circuit to GND which turns off cell.  I used a simple on/off switch and connect it to the GND lug on the Test Point on the panel.  Then turned switch upside down to match label on front panel with up being on and down off. A cleaner fix would be to do this connection on the landing pad.  See circuit trace below to see what I mean.  Adding this wire is the only change I made to get card to work and I did that while wiring up the front panel.
 
While I am still waiting for a new SH74122N I wanted to test board, so I took the one out my test K3.  I can report that the board works.  I did test all the front panel controls (still need to label and mount the trim pot) but as I mentioned above the only thing, I change was to add the missing connection to GND on the Cell ON/OFF switch which I did on front panel.  NOTE: Input signal is from K2 and K3 is in manual mode for these tests.

I did notice that the [A] signal on the test point was not what I expected.  It was a square wave at 5-volt levels.  It does change as expected with the pot controls.  See picture K3 test point Signal.  I also checked [A] on screw terminal and it is the same signal but at 10-volts, which is the level required by K21.  I actually expected this as VEE pulls it up and powers the LED.  See picture K3 [A] on screw connector.  Note: ( [A] is the basic gate frequency and duty cycle used by the rest of the system.  If it is not at 10-volt level it will not trigger the chip that combines the gate with the high frequency digital signal. If gate is turned off no digital signal will be sent to the cell.)

There are a few other chips on the board that are not in original schematic and they use the [A] signal that goes the test connector.  The [A] signal gets combined with another signal that comes in on one of the board pins.  The additions chips AND the 2 signals and route results back off on another board pin. (This means the combined signal can never be larger that gate pulse, but it can be smaller and is at 5-volt levels).

Having the 5V level signal on the test point is not a problem as what is being checked is gate information mainly frequency and duty cycle.  There just should be a note some where it is not exactly the [A] signal being sent to rest of the system.

Added picture showing new K3 front panel being tested on VIC Matrix.

 noted fixing

Earl here is Version 1.7 VIC please check thoroughly that i got your correction all done if any change let me know i do straight away while fresh in mind

Attached ver 1.7 not all labels new top silk
 in yellows in the attached but will update soon  and note here

Dan

Will check

Dan,  I down loaded picture of front panel with questions about what a couple of the controls do and forgot to get back to it, noticed this morning.  As finding that out that information was one of the goals of my testing I have answers attached .  I put them in a word document so it will be easy to extract as I expect we should put this information in training document.

I also attached PDB of same doc for people who do not have Word

Description provides more information on what they do based on my testing.  My testing thread has more information on each of them with scope shots showing what happens when you change them.  One thing I do find interesting is there is another frequency control on the VIC board.  At least in my system the Manual frequency control has limited range tops out around 1.4Khz,  but with the frequency control on board I can change frequency above 10khz.  I expect once resonant range is found this set and never changed.

I have been using the OFFSET control to set voltage level.  Minimum is around 2V but you can raise voltage to around 11V using this control without changing format of signal.  I expect you can do the same using other external controls that I do have.  In that case the offset would be used to just set the minimum level to have an analog signal without clipping. (Extra741 interface on bottom left of VIC board).

ok great