Grizzly PSJ-VZ58 gen3 OEM User manual

Content:
1. GEN.3 updates overview
2. General information
3. Functions overview
4. Technical parameters
5. PSJ installation
6. Fire modes and programming
7. Troubleshooting
8. Package contents
OEM version
Products with OEM indicate is determined for experts. The lower price is compensated by absence of packaging,
extensive manual and some universal accessories. If you are buying an OEM version we assume that you are
expert of AEG and in case of complaint will be detailed examined damage by faulty installation.
1. GEN.3 news overview
•simplified unit installation
•simplified magnet installation – polarity doesn’t affect functionality
•lower energy consumption, as low as 3.9mA
•can be used with spring up to M200 with rate of fire 99rpm
•longer wires, suitable for all replica types
•adjustable rate of fire
•adjustable active brake with possibility to be completely disabled
•compatible with batteries up to 4S / 16.8V
•a screw added to accessories to attach the unit into the gearbox
•new, thicker insulation foil preventing short circuit
•possible usage of dual sector gears
•layered varnish coating preventing short circuit
•new service connector
2. Basic information
New generation of PSJ processor unit brings many new functions and easier installation. All the great function of
previous generations are kept - contactless magnetic switching, powerful MOSFET cooled via the whole gearbox,
active brake fully functional in any mode, programmable burst and so on.
On top of that the active brake is now adjustable up to completely disabled, we’ve added advanced rate of fire
settings, energy consumption is now as low as 3.9mA and there are many more new features and updates.
Generation 3 units are suitable for AEG replicas according to the version of gearbox each unit is designed for.
Units have been tested in gearboxes of following manufacturers*:
AimTop, APS, ARES, ASG Ultimate, Cyma, DBoys, Guarder, RetroArms, SHS, SRC
3. Functions overview
3.1. Fire modes
•6 pre-set fire modes
•configurable burst mode - from 1 up to 255 BBs shot on one quick trigger pull, this setting works in all
modes containing burst
•automatically switches from burst to full auto when trigger pulled for longer time, without any delay
•modes are fully programmable by the trigger (see figure 6.2.)

3.2. Rate of fire
•allows you to set delay between the two following shots
•allows smooth rate of fire setting
•programmable by trigger (see figure 6.2.)
3.3. Special functions
•default settings reset: You can simply reset all settings to their default values by trigger (see figure 6.2.)
•manual mode: If your PSJ indicates damage and you are sure it is not mechanical and your replica is able to
shoot, you can access manual mode in which malfunction is ignored. You can then fire on full auto mode
only (see figure 6.4).
•WARNING! By poor judgement, you can cause more damage to your replica and the unit!
3.4. MOS-FET
•no mechanical switch, switching is contactless
•faster trigger response
•increased rate of fire and battery life
•maximum current up to 202A constant and 808A in peek
3.5. Active brake
•stops motor immediately with piston in default position and spring loose (when 100% set)
•increases lifetime of piston, spring and many other parts
•always finishes whole rotation of gear wheels
•fully functional in all fire modes
•adjustable by steps of 10%
•possibility to completely disable active brake (set 0%)
3.6. Malfunction detection
•unit detects mechanical damage and disables shooting to prevent any other damage
•user is warned by motor vibrations (see figure 6.3.)
3.7. Li-Pol/Li-Ion/Li-Fe battery check
•when lithium battery is discharged, unit warns user by motor vibrations (see figure 6.3.)
•battery type needs to be set – easily done using trigger itself (see figure 6.2.)
•warning is off for Ni-MH, Ni-Cd batteries
3.8. Realistic trigger operation
•trigger sensitivity can be set during installation to best fit your demands
3.9. Anti-reversal latch
•solves problem with double shot on semi
•anti-reversal latch may not be needed if the motor is powerful enough (not recommended)
3.10. All this hidden inside your gearbox
•the whole unit is installed inside your gearbox, replacing trigger contacts
•only two power wires come from gearbox
•unit is equipped with LED indication of correct installation for easier installation
4. Technical parameters
•Top quality silicone wiring. 1mm2in cut capable of transmitting up to 47A constant.
•Powerful MOSFET with maximum current up to 202A constant and 808A in peak allows use almost without
any restrictions.
•MOSFET is effectively cooled by the whole gearbox.
•The whole unit is coated in multiple layers of varnish for maximum durability even in poor conditions.
•Replica‘s rate of fire is limited by gearbox components and technical specifications. PSJ unit itself is able to
do up to 500 000 cycles (shots) per second. Unit is tested for 99 cycles (shots) per second.
•Current consumption of unit in standby mode is as low as 3.9mA.

5. PSJ-VZ58 installation
! PSJ-VZ58 gen.2 should be installed by specialists only !
Advanced knowledge of AEG replicas is. Also basics in electronics and soldering skills are needed.
Never use soldering gun! Manufacturer takes no responsibility for damaged caused by unprofessional
installation!
5.1. Preparation of PSJ for installation
Pict.1: Self-contained unit – OEM version
5.2. Soldering of wiring diagram
Wiring diagram of self-contained processor unit. During the soldering wires be extremely careful. If you change
polarity you can destroy unit after connecting to power source.
Pict.2: Wiring diagram pro unit with OEM version

5.3. Recommended soldering wiring
Pict.3: Example of soldering for OEM version.
5.4. Preparation
For PSJ-VZ58 installation take gearbox out of your replica and remove original processor unit. To remove the unit
must be removed also the selector plate.
Pict.4: Removed gearbox from the replica without original processor unit

5.5. Heat-conductive foil
On both transistors stick enclosed heat-conducting foils. Foils are self-adhesive, is necessary to remove protective
foil from them - from both sides.
Pict. 5: Removing the protective foils from the heat-conducting foils and their placing, gearbox check
5.6. PSJ-VZ58 installation
Insert your unit to original position on gearbox. If unit doesn’t fit on gearbox you can adjust it by rasping. After
your unit is placed you must check for any conductive contacts with gearbox. If there are some conductive
contacts you have to remove them, for example by rasping the unit or your gearbox,or you can use an insulating
material. Bottom side of unit is insulated by pre-installed insulation foil.
Pict. 6: Installing new processor unit on gearbox

5.7. Fixation of new processor unit
Fix new processor unit by original screws. Make last check if everything fits how it should be before full screws
tighten.
Pict. 7: Fixed new processor unit
5.8. Checking the cut-of lever
After you correctly install the processor unit check if magnet is inserted in gear wheels and is directly over the
probe. Everything was tested on more guns but may happen that the ARES manufacturer changes gearbox or
dimensions of plate without notice. This situation will be necessary to deal with the GRIZZLY manufacturer.
Pict. 8: Checking the settings of magnets for „cut-of lever“ and hall probe

5.9. Inserting the selector plate
After correct installation of new processor unit reinsert the selector plate to its original position. Check if magnet is
directly over the hall probe when selector plate is in position „auto“. Everything was tested on more guns but may
happen that that the ARES manufacturer changes gearbox or dimensions of plate without notice. This situation will
be necessary to deal with the GRIZZLY manufacturer.
Pict. 9: Checking the settings of selector plate’s magnet with the probe hall
5.10.1 Magnet installation on the trigger
Set the trigger to position, where you want your replica to fire. Put the magnet on trigger as close as possible to
the sensor. If you want sensitive trigger put the magnet as closest to the probe when your trigger isn’t pressed
(just before the LEDs light up). LED has never lights in the basic position.
Now stick the magnet. Magnet’s polarity doesn’t matter.
If needed, you can very gently bend the probe to be very close to magnet when you press trigger, but not to
touch it.
Pict.10: Installation magnet onto the trigger

5.10.2 Magnet installation on the trigger
The checking is very simple: LED must flash when you push the trigger
Exact notification of trigger:
Free trigger - LED doesn’t light
Pushed trigger (firing) - LED lights
Pict. 11: Notifications of the trigger by using LED
5.11. Replica completion
Assemble the rest of your gearbox in standard way and insert it in your replica. You can now test
your PSJ-M3 and set your prefered fire modes.
WARNING: Be careful on wires when you put the gearbox into the body of your replica.

6. Fire modes and programming
6.1. Preset modes
Selector on semi:
Selector on auto:
1.
Semi
Burst / Auto
2.
Semi
Auto
3.
Semi
Semi
4.
Semi
Burst only
5.
Burst only
Auto
6.
Burst only
Burst / Auto
6.2. Unit programming
a) For programming, connect a battery and within 5 seconds pull and hold the trigger for another 5 seconds.
Entering is confirmed by the motor vibrating twice.
b) Next, choose category from menu by pulling the trigger as many times as the category number you wish to
select indicates. To confirm selection, pull and hold the trigger for 5 seconds. Your choice is confirmed by
motor vibrating as many times as the selected number is and you are now in the submenu.
c) When changing fire mode (submenu 3), every trigger pull is followed by motor vibrating as many times as
the number of currently selected fire mode indicates. Submenu goes in circle, so number 6 is followed by
number 1. For submenu values, refer to the table below.
d) When you are done with setting value, pull and hold the trigger for 5 seconds to save your settings. Double
vibration confirms successful saving and exiting programming function. Now you’re ready to go. Your
settings stay saved even after disconnecting the battery.
Category
(selection is confirmed by moto
r
vibrations, number of vibrati
ons
= number of menu selected)
Values
(after you select value, confirm it by holding the trigger pulled for 5s)
1) Burst setting
Number of trigger pulls = number of shots in burst
(default = 3 shots)
2) Battery check setting
1) Li-Pol, Li-Ion (default)
2) Li-Fe
3) Off (recommended for Ni-MH, Ni-CD)
3) Fire mode setting
1) Semi - Burst/Auto (default)
2) Semi - Auto
3) Semi - Semi
4) Semi - Burst only
5) Burst only - Auto
6) Burst only - Burst/Auto
(every trigger pull is followed by motor vibrating as many times as the number
of currently selected of fire mode is)
4) Shooting delay setting
Each trigger pull = +20ms
(every time you set the delay, you start from the default value
0ms, for default value, just hold the trigger pulled for 5s)
5) Reset to default values
(returns all settings to their
default values)
Hold the trigger pulled for 5s to confirm restart. If you do not wish to reset your
settings, disconnect your battery.
6) Rate of fire setting
Each trigger pull = - 10% (range 100% - 10%)
(every time you set the rate, you start from the default value 100%, for default
value, just hold the trigger pulled for 5s)
7) Active brake setting
Each trigger pull = - 10% (range 100% - 0%)
(every time you set the braking effect, you start from the default value 100%,
for default value, just hold the trigger pulled for 5s)
Example of programming: First, connect the battery and pull and hold the trigger for 5 seconds. Double vibration will sound.
Then pull the trigger 3 times and then pull and hold for 5s – you‘re entering Fire mode setting. Entering is confirmed by three
vibrations. Now pull the trigger - after each pull, vibrations will tell you which mode you‘re on. If you pulled the trigger 5 times,
you chose number 5 (mode Burst only - Auto). Five vibrations will confirm this selection. To save it, pull and hold the trigger for
5s. Now double vibration sounds, which means the setting is saved and the programming mode has been shut. Your replica is
now ready with selected setting.

6.3. Motor vibrations meaning (outside programming mode)
•1x vibration - after the battery has been connected, unit performs a self-check and confirms functionality
•2x vibration - entering programming mode, saving and exiting programming mode
•3x vibration - malfunction or damage detected
•4x vibration - low battery detected
•6x vibration - entering manual mode
6.4. Manual mode
If your PSJ indicates damage and you are sure it is not mechanical malfunction and your replica is able to shoot,
you can access manual mode. In this mode, malfunction is ignored and you are allowed to fire on full auto mode,
regardless of selected fire mode or selector setting.
WARNING! By poor judgement, you can cause more damage to your replica and PSJ unit!! This mode is not
recommended for users without advanced knowledge of AEG replicas principles!
To enter manual mode after your replica indicates malfunction, just pull and hold the trigger for 10 seconds.
Entering is confirmed by 6 vibrations.
7. Troubleshooting
Is your PSJ not working correctly? Check, where the problem could be:
7.1. Replica is not reacting at all.
•Check if the battery is connected and charged properly. Also check that all wires are connected properly to
all elements – motor, battery.
•If the replica is equipped with safety fuse, check if the fuse hasn’t been blown.
7.2. Replica vibrates when battery is connected, but after that it does not react.
•Problem in trigger setting. Check if your trigger is installed properly – magnet should almost touch the
sensor when the trigger is pulled. Adjust if needed.
7.3. Selector is set on “semi”, but acts like “auto” is selected.
•Poor selector plate installation. Check, whether the magnet on the selector is directly above the sensor when
selector is set on semi. Adjust if needed.
7.4. Selector is set on “auto”, but acts like “semi” is selected.
•Poor selector plate installation. Check, whether the magnet on the selector is away from sensor when
selector is set on auto. Adjust if needed.
•Check if the fire selector is properly moving the selector plate when switched.
•Check if the selector plate is running smoothly in the gearbox. I fit gets jammed, adjust the selector plate or
the gearbox to allow smooth movement.
7.5. Replica shoots one or more shots and then vibrates 3 times.
•Cut-off lever not working properly. Check if the magnet is close enough to the sensor, LED indication will
help you. Adjust if necessary.
•Check if the selector plate spring is strong enough to return the cut-off lever to its base position. If not, the
magnet might be too far from the sensor. The cut-off lever needs to return to its base position in all fire
modes. Using stronger spring is recommended.
•Check if the cut-off lever is installed properly. Improper installation can result in lateral movement of cut-off
lever during shooting, pushing it out of range of the sensor.
7.6. Replica does not shoot, just vibrates 3 times and the vibrates with each trigger pull.
•Mechanical malfunction of your replica has been detected. Check if the motor and the gears are not jammed
and are working properly. If you are sure the replica is mechanically ok, you can access manual mode – see
figure 6.4.
•Check if the selector plate is not lifting up the cut-off lever and preventing the cycle to be finished. If so, it‘s
necessary to enlarge the area cut off of the selector plate in order not to lift the cut-off lever.
7.7. Replica vibrates 4 times repeatedly.
•Your battery is discharged. Change your battery and do not forget to charge the discharged one.
•If your battery is charged properly, your battery setting may be wrong – see figure 6.2 to adjust the setting.
7.8. If your installation is unsuccessful.
•If your installation is unsuccessful, you can opt to send your replica to our installation and repair center.
Please notify us by email to [e-mail]
Address to ship your replica to: Grizzly Airsoft, Zizkova 84/7, 682 01 Vyskov, Czech Republic

8. Package content
•processor unit PSJ gen.3
•pre-installed insulation foil
•heat conducting foil
•magnets
WARNING: PSJ should be installed by qualified AEG professionals only! Manufacturer is not liable for any
damage on the replica caused by unprofessional installation. Do not use soldering gun!