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| SHOCKER SFT PARTS - LOWER CIRCUIT BOARD |
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Tech index -> Shocker SFT -> Parts of a Shocker -> Lower circuit board
The lower circuit board accomplishes many tasks. Firstly and most importantly, it houses the main part of the marker's electroincs, encompassing the microcontroller and all related components. This means it's the circuit that is "programmed" to operate the marker. The lower board connects to the battery by a standard 9v battery connector.
Please note that there is no reverse voltage protection on the stock board. If the battery is plugged in backwards (negative to positive), the board may become damaged and need replacing (expensive).
The lower board also has an integrated lever-actuated microswitch, which is used to fire the marker by the trigger. The stock switch weight on the board is 25-g (this is the lowest available return weight).
The lower board is held in place by the two roll pins that hold the trigger microswitch (above) in place. The board is removeable by removing the two roll pins, using a hammer with metal punch, nail, another roll pin, or whatever other tool you can find. Personally, I use a pair of needlenose pliers to remove the pins.
Be wary of scratches to the frame, since this spot is only slightly covered by the grip panels.
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Here is a video to demonstrate board pin removal. Push out the board pins, pull them out the other side, remove the board and wiring harness.
(right click, save as)
Care must be taken when reassembling the body with the frame. The wire harness connecting each board must remain out of the way of any parts. Please refer to the Powerswitch & Wire Harness page in the Related Links section.
Board Adjustment:
One of the other most important features of the lower board is that it is the platform by which the marker's electronic settings (dwell, ROF, etc) are adjusted. For instructions on how to adjust the board's settings, follow the link at the bottom of the page to the adjusting and maintaining section of the site.
Aftermarket Boards:
The following lists all of the useable drop-in boards for the Shocker, and a list of their features. For a complete list you can consult the manuals & documentation page for manuals on the board function. A drop-in board is one that replaces only the stock vertical board, so all you have to do is unplug the stock and plug in the new. No soldering or other modifications are required.
So...which board is best? The answer is none of them. As you can see, most of the boards have relatively the same programming features and other characteristics. They all improve the reflective eye performance. They all fire faster than the stock. None of them are "faster" than any others. Take a look at the features for each board, how they are adjusted, and make your choice from there.
Board Type: |
stock |
Predator |
Virtue |
Reloaded |
Blackheart |
Unleashed |
|
| Current version: | Nerve | rev-b; M5 | rev-c; AFA 5.0 | v2.0 | Unleashed | ||
| Adjustable debounce? | no | yes | yes | yes | yes | yes | yes |
| Adjustable ramp activation speed? |
yes | yes | yes | yes | yes | yes | yes |
| Adjustable ramp shot count? |
no | no | yes | no | no | yes | no |
| Adjustable eye holdoff? | no | yes | yes | yes | no | yes | yes |
| Adjustable ABS dwell? | no | yes | yes | yes | yes | yes | yes |
| ABS time: | n/a | 10 sec | 5, 10, 15 sec | unknown | unknown | unknown | 20 sec |
| Adjustable AMB: | no | yes | no | yes | no | no | yes |
| Delayed eye mode? | no | yes | no | no | no | no | yes |
| Adjustable CPF? | no | yes | no | no | no | no | no |
| Adjustable ramp percentage? |
no | no | no | yes | no | no | yes |
| Tournament lock? | yes | yes | yes | yes | yes | yes | yes |
| Adjustable reflective eye sensitivity? |
no | no | yes | no | no | no | no |
| Beam-break compatible? |
no | no | yes | no | no | no | yes (NXT) |
| Battery indicator? | yes (sortof) | yes | no | no | no | no | yes |
| Auto shutdown: | no | 15 min | 10 min | no | no | no | adjustable |
| Adjustable alarm/timer? | no | no | no | no | yes | no | no |
| Price: | $100 | $140 | $140 | $160 | $140 | $100 | $140 |
Smart Parts stock Vision (Nerve) board: Upgraded board that also includes the Vision anti-chop eye and components. Includes Nerve programming which has rebound modes.
· Semiauto capped at 24-bps eyes on (18-bps eyes off).
· Rebound capped at 20-bps eyes on and off.
· Programmable via push-button switches on the surface of the board.
· Firing modes: semiauto, rebound (PSP ramp)
· Price: approx. $100 for just the board, $165 for the Vision upgrade kit. Vision kit available from most SP retailers.
Tadao Shocker board (aka. Dynasty Board): The first Shocker drop-in board, now featuring Tadao M6 programming. Tadaotechnologies.com
· Programmable by holding the trigger while turning the marker on.
· Push-button switch on the surface of the board toggles between locked and unlocked (tournament lock).
· Adjustable cycle percentage filter (CPF) controls the length of time for the shot buffer in response to the firing cycle (used to control bounce).
· Multicolor LED pixel for programming.
· Firing modes: semiauto, PSP ramp, PSP 2 shot burst, NXL fullyauto
· Price: $140 from Dynasty's store as well as punisherspb.com.
TAG/KM2 Predator SFT board: Drop-in board featuring the same programming as the custom-installed Predator controller. TAGsportz.com.com
· Programmable by holding the trigger while turning the marker on.
· Tournament lock DIP switch on the surface of the board (tournament lock).
· Numerically programmed using LED blinks.
· Adjustable entry shot count and ramp activation speed, however there are preset NXL and PSP modes as well.
· Adjustable eye fire holdoff; adjusts the delay between the bolt detecting the bolt move open.
· Lifetime software upgrades for the original owner.
· Firing modes: semiauto, PSP ramping, PSP 3 shot burst ramping, debounce ramping, NXL fullyauto, fullyauto, autoresponse, breakout mode hard ramping
· Multicolor LED on the board dims and pulsates through clear-toned grips.
· Compatible with custom beam-break installs. This is NOT currently compatible with the NXT series beam-break Shockers.
· Price: $140 from TAG retailers (TAG, punisherspb.com).
AdvantagePB Virtue Shocker board: Virtuepaintball.com
· Programmable by holding the trigger while turning the marker on.
· DIP switch on the surface of the board toggles locked and unlocked (tournament lock).
· Multicolor LED pixel for programming.
· DIP switch on the surface of the board toggles between 15-bps capped and adjustable cap.
· Firing modes: semiuato, PSP ramping, autoresponse, NXL fullyauto, fullyauto, ramping percentage ramp mode
· Adjustable ramp percentage, adjust the rate at which shots are added.
Note: The current board color is black. Previous boards were green.
Tonton Reloaded board: Used by team Tonton Flinguers.
· Programmable via push-button switch on the surface of the board (tournament lock).
· Bi-color LED for programming.
· Includes a built-in alarm timer, using a buzzer and vibrator.
· Compatible with an attachable LCD for making adjustments (sold separately). THE LCD CANNOT BE MOUNTED ON THE GUN (stop e-mailing me).
· Automatic eye deactivation if no ball loads.
· Firing modes: semiauto, PSP ramping, PSP burst, NXL fullyauto, breakout mode PSP ramp
Note: Boards have been produced in both red and black versions.
Smart Parts Blackheart board: Same hardware as a regular Shocker/nerve board except with a black soldermask. Includes some of the major "required" adjustments and added modes.
· Semiauto capped at 24-bps eyes on (18-bps eyes off).
· non-semiauto firing modes capped at 20-bps eyes on and off.
· Programmable via push-button switches on the surface of the board.
· Firing modes: semiauto, rebound (PSP ramp), NXL fullyauto, 3 shot burst
· Price: $100, includes a new eye ribbon.
NoX Unleashed Shocker/Nerve board: Bringing some new things to the table. buynox.com
· Programmable by holding the trigger while turning the marker on.
· push-button switch on the surface of the board toggles between locked and unlocked (tournament lock).
· Multicolor LED pixel for programming.
· Firing modes: semiauto capped/uncapped, PSP 3-shot burst, NXL fullyauto, PSP ramp, linear (adjustable) ramping, hard "step" ramping, fullayuto, autoresponse, 2-4 shot burst mode.
· Firing mode modifier options to add and combine certain mode aspects to others.
· Linear ramp adjustment multiplier.
· Semiauto training mode to help conserve paint useage.
· Adjustbale auto-shutdown timer
· Functions with both stock eye systems (2003-2006 reflective eyes, 2007+ NXT beam-break eyes)
· Low battery meter on startup and can be viewed at any time during gameplay.
· Speed check on any semiauto rapid firing string at any time during gameplay.
· Four eye modes including the option to disable eye validation.
· Adjustable idle LED color schemes.
· Price: $140.
PB Warehouse Nitro board: Info coming soon
APE Rampage Shocker/Nerve board: Info coming soon
Virtue RL board: Info coming soon
Hater Shocker/Nerve board: Info coming soon
Stock Board Technical Specifications: 
Here are some technical specifications for the stock Smart Parts lower board (Shocker/Nerve).
· The only part of the board that functions off 9-v is the powerswitch, which is carried to the upper board through the wire harness.
· Lower board regulates straight battery voltage to 7-v using a Linear Technology LT1962 voltage reg, which supplies 300-mA to the solenoid through the wire harness, and also to the rest of the lower board.
· Most of the board components run from 5-v, regulated through a National Semiconductors LP2981 voltage reg. This includes the input switches (pull-up type), board speaker, and microcontroller.
· The microcontroller is an Atmel ATmega8L AVR. The board programming is locked and the circuit is designed to prevent cold booting.
· Trigger microswitch is a 25 gram leverswitch, Omron part number D2F-FL.
· Power and programming switches are subminiature side-actuated tactile switches, ITT CANNON part number KSS321G (7mmx3.5mmx1.6mm).
· Wire harness connector is a 10-point, shrouded, side-entry type JST eSH series header, JST part number BM10B-SRSS-TB. Wire harness is 32 AWG wire connected between two protrousion-less housings, JST part number SHR-10V-S-B.
Lower board pictures:
· Reverse-engineered circuit schematic made by myself:
Specifications for the upper circuit board can be found on the upper board page in the Related Links section.
Overview:
· The lower board controls the main functions of the marker, and is the method by which the marker is electronically adjusted.
· Shocker runs off a standard 9v battery.
· The lower board is held in place using two small roll pins, placed through the trigger microswitch.
Related Links:
· Adjusting the electronics settings
· Upper circuit board
· Powerswitch actuator & wire harness
· Flipped microswitch mod
· Microswitch tensioner mod
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Tech index -> Shocker SFT -> Parts of a Shocker -> Lower circuit board