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FUTABA 9Z
V
2.
Connect both 0 Pins (Shields) of DIN-A and DIN-B together.
3.
Connect both 1 Pins (+V) of DIN-A and DIN-B together.
4.
Connect Pin 3 of DIN-A to Pin 2 of DIN-B.
5.
Connect Pin 2 of DIN-A to Pin 3 of DIN-B.
Note: This will give you a fully reversible Trainer Cable with power being transferred
from master to slave. If you do not wish power to be transferred, do not connect Pins 1
together on DIN-A and DIN-B.
4.11. Futaba 10Z upgrade - Adding a 10
Note: This has only been tested on a 9Z WC, but will probably hold true for the WC2
and earlier 9Z model.
The 9Z WC transmits a hidden 10th channel by default. Channel 10 is non-proportional
(just like Channel 9) and is permanently assigned to switch-D. The signal for channel 10
is produced by the PCM decoder chip (FR6302B) and is available inside a PCM 9
channel receiver from one of the pins on the chip (see Figure 51). As a result you will not
be able to access the 10
PCM 9 Channel receivers it can be accessible externally with an easy and inexpensive
modification. Once you have access to this channel you can reassign the switch for
Channel 9 and you have a Futaba 10Z!
To make the modification you will need to purchase a 470 Ohm resistor, a 470pF
capacitor and a servo socket. The electronic components are widely available and
extremely cheap (25p) but if you have issues try Digikey, RS Components or Farnell.
Next you need to construct the circuit shown in Figure 51. Finally, connect the circuit to
the pin inside the PCM receiver indicated in Figure 51. This circuit provides the signal
line to the servo (white wire); you will also need to connect the power (red wire) and
negative (black wires) of the servo connector lead to the appropriate connections inside
the receiver. Alternatively simply connect the red and black wires to an existing red or
black servo wire outside the receiver using a servo splitter cable (although this is not
very attractive or practical!).
Figure 51 Adding a 10th Channel to the 9Z
WARNING: THE INFORMATION IN THIS MANUAL IS FOR INFORMATION PURPOSES ONLY AND MAY BE INCORRECT, CAUSE DAMAGE
TO YOUR RADIO OR INJURY TO YOURSELF AND OTHERS. IF YOU USE THIS MANUAL YOU DO SO SOLEY AT YOUR OWN RISK.
THE UNOFFICIAL WORKSHOP MANUAL
th
Channel on PPM or 2.4GHz receivers. However, on Futaba
Page 56 of 84
th
Channel to the 9Z
Copyright 2012 jamesandtracy.co.uk
www.jamesandtracy.co.uk
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