JAW Assembly
From SaturnWiki
This is mostly just copied from the documentation that comes with the JAW-DEPLOY package.
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Package Contents
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Table 1: JAW 1.03 Components List – Summary
| Component | Quantity |
|---|---|
| 0.1uf Electrolytic Capacitor | 1 |
| 1uf Electrolytic Capacitor | 10 |
| 100uf Electrolytic Capacitor | 2 |
| 62 ohm Resistor %1 | 1 |
| 2k/2.2k ohm Resistor %5 | 4 |
| 5k/4.7k ohm Resistor %1 | 2 |
| 10k ohm Resistor %1 | 4 |
| 1n4746a Zener Diode | 1 |
| 10uh Inductor | 1 |
| Atmega88 Microcontroller | 1 |
| Max232 IC | 1 |
| LM324 Quad Op Amp | 1 |
| LM7805 voltage regulator | 1 |
| LM317t voltage regulator | 1 |
| Heatsink for LM317t | 1 |
| Screw for Heatsink | 1 |
| RS232 Female Connector | 1 |
| Screw Terminal | 1 |
| 16 Pin IDC Connector | 1 |
| Female Spade Connectors | 8 |
| JAW PCB Board | 1 |
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Table 2: JAW 1.03 Component List- Detailed
| Name on PCB | Name | Value |
|---|---|---|
| R1 | Resistor | 10k |
| R2 | Resistor | 5k/4.7k |
| R3 | Resistor | 10k |
| R4 | Resistor | 5k/4.7k |
| R5 | Resistor | 2k/2.2k |
| R6 | Resistor | 2k/2.2k |
| R7 | Resistor | 10k |
| R8 | Resistor | 10k |
| R9 | Resistor | 2k/2.2k |
| R10 | Resistor | 2k/2.2k |
| R11 | Resistor | 62 |
| C1 | Electrolytic Capacitor | 100uf |
| C2 | Electrolytic Capacitor | 100uf |
| C3 | Electrolytic Capacitor | 0.1uf |
| C4 | Electrolytic Capacitor | 1uf |
| C5 | Electrolytic Capacitor | 1uf |
| C6 | Electrolytic Capacitor | 1uf |
| C7 | Electrolytic Capacitor | 1uf |
| C8 | Electrolytic Capacitor | 1uf |
| C9 | Electrolytic Capacitor | 1uf |
| C10 | Electrolytic Capacitor | 1uf |
| C11 | Electrolytic Capacitor | 1uf |
| C12 | Electrolytic Capacitor | 1uf |
| C13 | Electrolytic Capacitor | 1uf |
| D1 | Diode | 1N4746a |
| L1 | Inductor | 10uh |
| CONN1 | Screw Terminal | |
| CONN2 | RS232 Port-Female | |
| JP1 | 16 Pin IDC Connector | |
| LM324 | LM324 | |
| Atmega | Atmega88 | |
| Max232 | Max232 | |
| LM7805 | LM7805 | |
| LM317 | LM317t | |
| HEATSINK | Heatsink for LM317t | |
| Screw | Screw for mounting Heatsink to LM317t | |
| Female Spade Connectors |
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Soldering JAW
The strategy for completing the kit quickly is to solder the shortest components first, this makes the components flush with the board when you flip it over to solder.
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Resistors
5k resistors maybe substituted with 4.7k resistors and 2k resistors maybe substituted with 2.2k resistors. R4 which has not value labeled on the PCB is 5k or 4.7k.
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Inductor and Diode
The diode should be mounted so that the stripe end points downward. The inductor looks like a fat green resistor.
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LM317, Atmega88, Max232
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Screw Terminal and 16 Pin IDC Connector
The IDC connector is labeled as “JP1” on the JAW PCB board, it is just beneath the Serial Port. On the IDC connector there is a small triangle symbol, this symbol indicates pin 1.
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Capacitors and Serial Port
The long lead of the capacitor is the positive, and the short lead is negative, the negative lead is also marked as “-“ on the capacitor itself. The positive lead goes into the hole marked “+”, left hole. The negative lead goes into the right hole.
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LM7805
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LM317
Using the supplied screw, mount the Heatsink to the LM317t, if you have heatsink compound it would be a good idea to use some. Solder the LM317 to the PCB.
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Completed unit
Image of a completed unit.
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JAW Display assembly
If you have ordered the DIY Display unit, proceed to the next section.
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LED Display-Package Contents
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Soldering the Display
This is easy enough, so I will not go into detail. R12 is 2k or 2.2k ohms. Just remember that he triangle symbol on the IDC connector indicates pin 1.
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