Grizzly PSJ-M3 GEN2 User manual

1.
Basic information
PSJ-
M3 brings revolution to gearbox III
are kept -
completely contactless switching by magnets combined with powerfull M SFET cooled by
whole gearbox, active break fully functional in any mode set, programmable burst. Plus you will
f
ind new fire modes, correct instalation indication and many more new functions. So it corresponds
with second generation of GRIZZLY processor units.
This unit is suitable for all AEG replicas with gearbox version I
following manufacturers*:
AimTop, APS, ASG Ultimate, Cyma, DBoys, Guarder, RetroArms, SHS, SRC
*Every manufacturer inovates their products in time, so there is possibility, that our tested gearbox is different from yours
However this only means, that your installation might require some minor adjustments of unit or gearbox, see
2.
Function
2.1. Fire modes
• 6 preset fire modes
•
allows you to set burst mode from 1 up to 255 shots on one trigger
works in all modes containing burst
•
automatically switches from burst to full auto without any delay
•
modes are fully programmable by trigger itself (see
2.2. Rate of fire
•
allows you to set delay between two following shots
•
programmable by trigger (see
2.3. Special functions
•
reset to default settings
(see figure 5.2.)
• manual mode - if your
PSJ indicates damage and you are sure it is not mechan
replica is able to shoot, you can access manual mode, in which malfunction is ignored and
you can fire on full auto mode only (WARNING! By poor judgement, you can cause more
damage to your replica!)
2.4. Mos-fet
•
no mechanical switch, everythi
• faster trigger response
•
increases rate of fire as well as battery life
•
maximum current up to 202A constant and 808A in peek
Content:
1) Basic information
2) Function overview
3) Technical parameters
4) PSJ-M3 installation
5) Fire modes and setting
6) Troubleshooting
7) Package content
Basic information
M3 brings revolution to gearbox III
replicas. All the great function of first generation of PSJ
completely contactless switching by magnets combined with powerfull M SFET cooled by
whole gearbox, active break fully functional in any mode set, programmable burst. Plus you will
ind new fire modes, correct instalation indication and many more new functions. So it corresponds
with second generation of GRIZZLY processor units.
This unit is suitable for all AEG replicas with gearbox version I
I
I. It was tested in gearboxes of
AimTop, APS, ASG Ultimate, Cyma, DBoys, Guarder, RetroArms, SHS, SRC
*Every manufacturer inovates their products in time, so there is possibility, that our tested gearbox is different from yours
However this only means, that your installation might require some minor adjustments of unit or gearbox, see
Function
s overview
allows you to set burst mode from 1 up to 255 shots on one trigger
press, this setting
works in all modes containing burst
automatically switches from burst to full auto without any delay
modes are fully programmable by trigger itself (see
figure 5.2.)
allows you to set delay between two following shots
programmable by trigger (see
figure 5.2.)
reset to default settings
-
you can simply reset all settings to their default values by trigger
PSJ indicates damage and you are sure it is not mechan
replica is able to shoot, you can access manual mode, in which malfunction is ignored and
you can fire on full auto mode only (WARNING! By poor judgement, you can cause more
damage to your replica!)
no mechanical switch, everythi
ng is contactless
increases rate of fire as well as battery life
maximum current up to 202A constant and 808A in peek
replicas. All the great function of first generation of PSJ
-M2
completely contactless switching by magnets combined with powerfull M SFET cooled by
whole gearbox, active break fully functional in any mode set, programmable burst. Plus you will
ind new fire modes, correct instalation indication and many more new functions. So it corresponds
I. It was tested in gearboxes of
*Every manufacturer inovates their products in time, so there is possibility, that our tested gearbox is different from yours
.
However this only means, that your installation might require some minor adjustments of unit or gearbox, see
figure 4.2.
press, this setting
you can simply reset all settings to their default values by trigger
PSJ indicates damage and you are sure it is not mechan
ical and your
replica is able to shoot, you can access manual mode, in which malfunction is ignored and
you can fire on full auto mode only (WARNING! By poor judgement, you can cause more

2. . Active break
•
stops motor immediately with piston in default position and sping loose
• increases lifetime of
piston, sping and many other parts
•
always finishes whole rotation of gear wheels
•
fully functional in all fire modes
2.6. Malfunction detection
•
detects mechanical damage and blocks trigger from causing any more damage
•
warns user by vibrating (see
2.7. Li-Pol/Li-Ion/Li-
Fe battery check
•
when lithium battery is discharged, warns user by vibrating (see
•
setting battery type by trigger
•
can be switched off for Ni
2.8.
Realistic trigger operation
•
trigger sensitivity can be set during installation to best fit your demands (see
2.9. Anti-reversal latch
•
not needed if your motor is powerful enough (it is recommended to keep it)
•
solves problem with double shot on semi
2.10. Everything is se
t inside your gearbox
•
whole unit is inside your gearbox, replacing trigger contacts
•
only two power wires comes from gearbox
•
for easier installation, unit equipped with indication of correct installation
3.
Technical parameters
• nly high quality
silicone wiring is used. 1mm2 in cut and ampacity up to 42A constant.
•
M SFET with maximum current up to 202A constant and 808A in peek allows use without
any restrictions.
•
M SFET is efectively cooled by whole gearbox.
•
Whole unit is covered in varnish for m
•
Current consumption of unit is 30mA tops.
•
Dimensions only 22x21x11mm.
4. PSJ
-
! PSJ-M3
gen.2 should be installed by specialists only !
Advanced knowledge of AEG replicas is crucial. Also
skills are needed. Never use soldering gun! Manufacturer takes no responsibility for
damaged caused by unprofessional installation!
stops motor immediately with piston in default position and sping loose
piston, sping and many other parts
always finishes whole rotation of gear wheels
fully functional in all fire modes
detects mechanical damage and blocks trigger from causing any more damage
warns user by vibrating (see
figure 5.3.)
Fe battery check
when lithium battery is discharged, warns user by vibrating (see
figure 5.2.
setting battery type by trigger
can be switched off for Ni
-MH, Ni-Cd batteries
Realistic trigger operation
trigger sensitivity can be set during installation to best fit your demands (see
not needed if your motor is powerful enough (it is recommended to keep it)
solves problem with double shot on semi
t inside your gearbox
whole unit is inside your gearbox, replacing trigger contacts
only two power wires comes from gearbox
for easier installation, unit equipped with indication of correct installation
Technical parameters
silicone wiring is used. 1mm2 in cut and ampacity up to 42A constant.
M SFET with maximum current up to 202A constant and 808A in peek allows use without
M SFET is efectively cooled by whole gearbox.
Whole unit is covered in varnish for m
aximum lifetime even in challenging conditions.
Current consumption of unit is 30mA tops.
Dimensions only 22x21x11mm.
-
M3 installation
gen.2 should be installed by specialists only !
Advanced knowledge of AEG replicas is crucial. Also
basics in electronics and soldering
skills are needed. Never use soldering gun! Manufacturer takes no responsibility for
damaged caused by unprofessional installation!
stops motor immediately with piston in default position and sping loose
detects mechanical damage and blocks trigger from causing any more damage
figure 5.2.
)
trigger sensitivity can be set during installation to best fit your demands (see
figure 4.5.)
not needed if your motor is powerful enough (it is recommended to keep it)
for easier installation, unit equipped with indication of correct installation
silicone wiring is used. 1mm2 in cut and ampacity up to 42A constant.
M SFET with maximum current up to 202A constant and 808A in peek allows use without
aximum lifetime even in challenging conditions.
gen.2 should be installed by specialists only !
basics in electronics and soldering
skills are needed. Never use soldering gun! Manufacturer takes no responsibility for

4.1. Preparation
For PSJ-M3 installation, take gearbox out of your replica, open it and remove all of its content
(pict.1).
Pict.1: Gearbox with all of its content removed
4.2. PSJ-M3 mounting
Insert your unit into gearbox, wires first (pict.2). If it does not fit properly, you can adjust it by
rasping. After your unit is placed, check for any conductive contacts with gearbox. If there are any,
you need to insulate them! You can rasp the unit or your gearbox or you can use some insulation
material. Bottom side of unit is insulated by pre-installed insulation foil.
Pict.2: Installed PSJ-M3 gen.2

4.3. Selector plate
Insert prepared selector plate into position of your gearbox (pict.3). Check if the magnet is right
above the probe, when selector is set on semi. If not, adjust magnet on selector plate. If you wish
to modify your own selector plate, you need to remove part of plate where it meets cut-off lever.
Finally, stick the magnet on selector, so it is above the probe when selector is set on semi (pict.3).
Be careful about magnet polarity. For better placing, we recommend to mill a slot for the magnet.
Pict.3: Selector plate in position and its adjustments
4.4. Cut-off lever installation
Place the magnet on your cut-off lever, so in its default position, magnet almost touches the probe
(pict.4). Magnet needs to be turned by the black side to the probe, silver side to cut-of lever. It is
enough to use superglue. For correct installation, there is LED indicator on the unit (pict.5). For
that to work, connect your battery and insert the piston gear. By rotating it, cut-off lever should lift
and return and LED indicator should react by turning off and on again.
Pict.4: Cut-off lever inserted into gearbox (magnet almost touching the probe), magnet polarity

Pict.5: Cut-off lever movement, LED indication of proper function
4. . Trigger prepartion
Insert trigger into your gearbox and check if it goes smoothly. If not, adjust your trigger. Set the
trigger to position, where you want your replica to fire and mark the center of the probe. If you
wish your trigger to be more sensitive, use rectangular magnet and place it the way, that it is in
contact with probe until trigger fully (pict.7). If not, use round magnet. Now stick the magnet onto
the trigger, be careful about magnet polarity – black side is turned towards probe (pict.6). If
needed, you can very gently bend the probe to be very close to magnet, but not to touch it.
Pict.6: Placing magnet onto the trigger, polarity marking, using different magnets

4.6. Placing heat-
conductive foil
Remove protective foils from both sides of heat
(pict.7). After that, close your gearbox
you can remove heat-
conductive foils and leave unit without t
Pict.7:
Removing protective foils from
4.7. Replica completion
Assemble the rest of your gearbox in standard way and insert it into your replica. You can now test
your PSJ-M3
and set your prefered fire mode.
.
Fire modes
.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
.2. Unit programming
a)
For programming, connect battery and within 5 seconds press and hold trigger for another
5 seconds. Entering is confirmed by motor vibrating twice.
b)
Next, choose category from menu by pressing trigger as many times as is the number you
wish to select.
c)
After that, press and hold trigger for 5 second to enter submenu. Your choise is confirmed
by motor vibrating as many times as is selected number.
d)
When changing fire mode (menu 3), every trigger press is followed by motor vibrating as
many times as
is selected number of fire mode. Submenu goes in cycle, after number 6
follows number 1.
e)
When you are done with setting value, press and hold trigger for 5 seconds to save your
settings. Double vibration confirms successful saving and exiting programming
conductive foil
Remove protective foils from both sides of heat
-
conductive foil. Place one on each transistor
(pict.7). After that, close your gearbox
and check, if it can be closed without any problem. If not,
conductive foils and leave unit without t
hem.
Removing protective foils from
heat-conductive foils and
their placing
Assemble the rest of your gearbox in standard way and insert it into your replica. You can now test
and set your prefered fire mode.
Fire modes
and
programming
Selector on auto:
Burst / Auto
Burst only
Burst / Auto
For programming, connect battery and within 5 seconds press and hold trigger for another
5 seconds. Entering is confirmed by motor vibrating twice.
Next, choose category from menu by pressing trigger as many times as is the number you
After that, press and hold trigger for 5 second to enter submenu. Your choise is confirmed
by motor vibrating as many times as is selected number.
When changing fire mode (menu 3), every trigger press is followed by motor vibrating as
is selected number of fire mode. Submenu goes in cycle, after number 6
When you are done with setting value, press and hold trigger for 5 seconds to save your
settings. Double vibration confirms successful saving and exiting programming
conductive foil. Place one on each transistor
and check, if it can be closed without any problem. If not,
their placing
, gearbox check
Assemble the rest of your gearbox in standard way and insert it into your replica. You can now test
programming
For programming, connect battery and within 5 seconds press and hold trigger for another
Next, choose category from menu by pressing trigger as many times as is the number you
After that, press and hold trigger for 5 second to enter submenu. Your choise is confirmed
When changing fire mode (menu 3), every trigger press is followed by motor vibrating as
is selected number of fire mode. Submenu goes in cycle, after number 6
When you are done with setting value, press and hold trigger for 5 seconds to save your
settings. Double vibration confirms successful saving and exiting programming
function.

Category
(choice confirmed by vibrating in
count of selected number)
Value
(after you select value, confirm it by holding trigger for 5s)
1) Burst setting Number of trigger presses = number of shots on burst
(default = 3 shots)
2) Battery check setting 1) Li-pol, Li-on (default)
2) Li-Fe
3) ff (recommended for NiMH, NiCD)
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
(selection in this submenu is confirmed by vibrating in count of
selected number)
4) Shooting delay setting Every trigger press = +20ms
(everytime you set delay, you start from default value - for
default value, just hold trigger for 5s)
5) Reset to default values
(returns all settings to their
default values)
Hold trigger for 5s to confirm restart. If you do not wish to
restart your settings, disconnect your battery.
Example of programming: First, I connect battery and press and hold trigger for 5 seconds. Double
vibration sounds. I press trigger 3 times and then press and hold for 5s - I'm entering Fire mode
setting. I press trigger, after every press vibrations tell me which mode I'm on. I pressed trigger 5
times, which means I choose number 5 (mode Burst only - Auto). Five vibrations sound, so I press
and hold trigger for 5s. Now double vibration sounds, which means my setting is saved and I exited
programming. My replica is ready with selected setting.
.3. Motor vibrations meaning
• 1x vibration: each time you connect battery - states, that unit is ready
• 2x vibration: entering setting mode, saving and exiting setting mode
• 3x vibration: malfunction or damage detected
• 4x vibration: low battery detected
• 6x vibration: entering manual mode
.4. 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 this mode, malfunction is ignored and you can fire on full
auto, regardless of selected fire mode.
WARNING! By poor judgement, you can cause more damage to your replica!! This mode is not
recommended for users without advanced knowledge of AEG replicas principles!
To enter manual mode after your replica indicates malfunction, just press and holt trigger for 10
seconds. Entering is confirmed by 6 vibrations.

6.
Troubleshooting
Your PSJ-M3
is not working correctly? Check, where the problem could be:
6.1. Replica not working at
all.
•
Check if the battery is connected and charged properly. Also check that all wires are
connected properly to all elements
6.2.
Replica vibrates when battery is connected, but after that it does nothing.
•
Problem in trigger setting.
almost touch the probe when trigger is pressed. Adjust if needed. Also check the polarity of
magnet.
6.3.
Selector is on „semi“, but acts like „auto“ is selected.
•
Bad selector plate installation.
when selector is set on semi. Adjust if needed. Also check the polarity of magnet.
6.4.
Replica shoots one or few shots and then vibrates 3 times.
• Cut-
off lever not working properly. Check if the
indication will help you (see pict.5). Adjust if needed. Also check the polarity of magnet.
6. .
Replica not shooting, just vibrates 3 times.
•
Mechanical malfunction of your replica. Check if motor and gears are not
working properly. If you are sure it is ok, you can access manual mode
6.6.
Replica vibrates 4 times repeatedly.
•
Your battery is discharged. Change your battery, do not forget to charge the discharged
one. If your battery
is charged properly, your battery setting may be wrong
according to figure 5.2.
7.
Package content
• processor unit PSJ-M3
• complete universal
silicone wiring
• pre-
installed insulation foil
• heat conducting foil –
2pcs
• two different
magnets for trigger
• modified selector plate
with magnet
• Dean-T plug -
male (can be changed, please leave a note if you need other type of plug)
• gold-
plated motor plugs
• heat schrink tubings
•
user and instalation manual
WARNING: PSJ-M3
should be installed by qualified AEG professionals only. Manufacturer is
not liable for any damage on the gun caused by unprofessional installation. Do not use soldering
gun!
Troubleshooting
is not working correctly? Check, where the problem could be:
all.
Check if the battery is connected and charged properly. Also check that all wires are
connected properly to all elements
– motor, battery.
Replica vibrates when battery is connected, but after that it does nothing.
Problem in trigger setting.
Check if your trigger is installed properly –
magnet should
almost touch the probe when trigger is pressed. Adjust if needed. Also check the polarity of
Selector is on „semi“, but acts like „auto“ is selected.
Bad selector plate installation.
Check, that magnet on selector is directly above the probe
when selector is set on semi. Adjust if needed. Also check the polarity of magnet.
Replica shoots one or few shots and then vibrates 3 times.
off lever not working properly. Check if the
magnet is close enough to the probe. LED
indication will help you (see pict.5). Adjust if needed. Also check the polarity of magnet.
Replica not shooting, just vibrates 3 times.
Mechanical malfunction of your replica. Check if motor and gears are not
working properly. If you are sure it is ok, you can access manual mode
Replica vibrates 4 times repeatedly.
Your battery is discharged. Change your battery, do not forget to charge the discharged
is charged properly, your battery setting may be wrong
Package content
silicone wiring
installed insulation foil
2pcs
magnets for trigger
, one for cut-off lever
with magnet
male (can be changed, please leave a note if you need other type of plug)
plated motor plugs
- 2pcs
user and instalation manual
should be installed by qualified AEG professionals only. Manufacturer is
not liable for any damage on the gun caused by unprofessional installation. Do not use soldering
Check if the battery is connected and charged properly. Also check that all wires are
Replica vibrates when battery is connected, but after that it does nothing.
magnet should
almost touch the probe when trigger is pressed. Adjust if needed. Also check the polarity of
Check, that magnet on selector is directly above the probe
when selector is set on semi. Adjust if needed. Also check the polarity of magnet.
magnet is close enough to the probe. LED
indication will help you (see pict.5). Adjust if needed. Also check the polarity of magnet.
Mechanical malfunction of your replica. Check if motor and gears are not
blocked and are
working properly. If you are sure it is ok, you can access manual mode
– see figure 5.4.
Your battery is discharged. Change your battery, do not forget to charge the discharged
is charged properly, your battery setting may be wrong
– change it
male (can be changed, please leave a note if you need other type of plug)
should be installed by qualified AEG professionals only. Manufacturer is
not liable for any damage on the gun caused by unprofessional installation. Do not use soldering