DP2 - Da Pimp 2 Assembly Instructions

by sklarm in Circuits > Tools

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DP2 - Da Pimp 2 Assembly Instructions

DP2 is a extremely portable battery tester / desulfator / charger. These are the instructions for assembling a DP2 kit. Kits or fully assembled units are available for sale through the Holy Scrap Store. More up to date information is available on the DP2 Page.

Open the Enclosure

Cut Open the Components Bag

Empty Bag Contents

Place and Solder 28 Pin DIP Socket [U1]

Note:The small impression must be near the right edge of the circuit board.

Attach the Fuse Holders to the Fuse

Place and Solder the Fuse [F1]

Cover the 2-pin Jumper Headers With Their White Covers

Place and Solder the Jumpers [J2, J3]

Place and Solder 7 Segement Display [D1]

Place and Solder DC Barrel Jack [CONN1]

Place and Solder AC Power Cord Receptacle [CONN2]

Place and Solder Decoupling Capacitors [C4, C5]

Note:Orient the minus sign on capacitors to the bottom of the circuit board

Place and Solder the Bridge Rectifier [U3]

Note:Orient the + sign towards the top of the circuit board

Place and Solder 300 Ohm Resistors [R1, R2, R3]

Place and Solder 25k Ohm Resistor [R4]

Place and Solder 470 Ohm Resistor [R5]

Squeeze Your Microcontroller Leads to Fit the IC Socket [U1]

Note: I like to hold the chip at a slight angle and gently press the leads in

This Is the Amount of Curve You Are Looking for on the Leads.

Place the Microcontroller Into the DIP 28 Socket [U1]

Note:The small divot in the chip should be facing the right side of the board

Place and Solder the 7805 5v Regulator [U2]

Note:Orient the text side towards the lower circuit board

Step 21: Place and Solder the 9v Protection Diode [D2]

Note:Orient the black line on the diode to match the silkscreen (left side)

Place and Solder the Slide Switch [S1]

Place and Solder Large Charge Capacitors [C1, C2, C3]

Place and Solder Large Black Rocker Switch [S2]

Note:Match the 0 / 1 orientation on the silkscreen.

Clip Battery Lead to 2" in Length. Twist and Tin the Leads.

Solder 9v Battery Cap

Note:Left is negative (black), Right is positive (red) as the silkscreen indicates.

Nsert Assembled PCB Into Enclosure

Note:Align cable plug holes then press hard on opposite side of PCB for secure fit. It will be a little uneven as the retailer I've been buying enclosures from has changed models

Connect 9v Battery