Work in progress picture of A-12742 WPC89 board with data+address lines.
Keep an eye on this thread for a more complete version soon. (jan.2017)

sneak pv.jpg

edit 2017jan13: --deleted-- Bigger Picture. Need to check all data but quite happy with it already.

edit 2017jan20: --deleted-- pdf test:

edit 2017jan21: (previous versions deleted) FINAL version:

edit 2021nov30: R39->R99 ( thanks lays526 )

only with PDF it will stay as an uncompressed bitmap so PDF it is.

WPC89 CPU compnt nov2021.pdf

Picture with colored resistors.
Handy for rebuild after leaking batteries damaged the lower part of the CPU-board.

scalable pdf:
cpu89 resistor.pdf

Yeas, I did also WPC-s and WPC95 layout but not as detailed as WPC'89. Not sure when/if I'm gonna finish them.

The mirrored version of WPC'89 (view from solder side) is also almost ready and will be placed here as well. (and likely on pinwiki).
There will be empty spaces in that picture to keep it more clear and only relevant to measure connections to ASIC and other data/address lines.

U9 flipped.jpg

Flipped version of the CPU-board. ASIC is easier to measure from this side.
pict:
WPC89 CPU solder-side ZAZA-1a.pdf

Final version ASIC : 2017/01/30
ASIC WPC pinwiki --final--.jpg

tiny pic cpu-board:
WPC89 CPU small.PNG

L.E.D. function (from manual):
diag flash.gif

Voltage on switch inputs:
wpc89-switch cqt voltage open-closed.gif

switch matrix test with jumper wire:

(1) GND to ROW1-8 ___ (2) COLUMN1 to ROW1-8 ___ (3) ROW1 to COLUMN1-8
SW MX test with wire.gif

Correct,

in the '89 manual, sw-dir and sw-row are wrong assigned.
The ASIC in post#7 has the correct pinout for all switch related pins in 'yellow'

The manual has also an inconsistentcy in sol#1-sol#4. On the page with WPC-CPU, the sol-enables are mixed up with the next pages of the PowerDriverBoard.
Therefor the ASIC picture in post #7, sol#1-#4 are accompanied with the actual solenoid group.
e.g. sol#1 = 25-28

And don't forget about the supply on pin 3 + 12 joined together. That will get messy

U18 3+12 short.png

Better use the full picture in post #1 when troubleshooting the switches, it is verified over and over again.
When I'm doing repairs on this CPU-board, all I need is that picture.

that would be me as I made it only visible for Pinsiders this way.
With settings 'auto hide' one level higher, you can see all hidden pictures without having to click them open.

ah, remember the time when we had a paper manual in our toolkit. Nowadays it's all digital
page3 part.jpg

thanks NPO,
don't worry, I won't leave this site.

Not me. Sometimes I make notes / corrections in the schematics with a marker or pencil like picture in post#21 or here below.

you mean U1 and U5
audio sngl Ux.jpg

Did you notice the 'vcc' at U5-8 and u1-5 ? Better not connect them together because U1-5 is the +25V power for the amplifier.

Yes, verifying is time consuming with drwaing schematics and pictures.
That makes me think that the errors are not made deliberately in the manuals but caused by time frame limit.

Made a beginning, the switch circuits on the CPU'89-board. Number of corrections made... a lot:
switches schematic.jpg

Same here, reading glasses all over the place.

well done ! congrats and respect

Yes, can't even imagine what to do with only the paper manuals these days.
The digital schematics/manuals are so easy to acces.

After many weeks of verifing data and removing all errors , finally got the WPC95 version ready for download:

WPC 95 4-1-21 (resized).png