LZX Industries BitVision Operating Instructions Download Page 2

Diodes

D1, 

D9 

   1N4730A

D2 

   1N4148

D10 

   1N4001

D3*, D4*, D5*, D6*  

 

SMV1255

D7, 

D8 

   3MM 

LED

Resistors

R14 

   330 

ohm

R21 

   360 

ohm

R10, R11, R12, R13, R27   

470 ohm

R16 

   820 

ohm

R24 

   953 

ohm

R33, 

R34   1K

R20, 

R29   1.15K

R7, R15, R23, R26, R30, R35 

5.1K

R3, R4, R5, R6, R8, R9, R18,  

10K

R19, R22, R25, R28, R31 

R32 

   27K

Ceramic Capacitors

C14, C15 

 

 

22pF (220)

C12 

   27pF 

(270)

C13** 

   NO 

PART

C1, C2, C3, C5, C6, C8,    

0.1uF (104)

C16, C18, C19 

Electrolytic Capacitors

C7 

   2.2uF

C17 

   100uF

Crystal

Q1 

   14.1818MHz 

Crystal

Integrated Circuits (ICs)

IC1 

   TLC074

IC2 

   74HC14

IC3 

   74HC4053

IC4 

   Atmega328

IC5 

   7805

Jacks, Headers, Potentiometers & Switches

VR1, VR2, VR3, VR4 

 

100K Potentiometer

S1, S2, S3 

 

 

12MM Tactile Switch

J1 

   1/8” 

Audio 

Jack

J2 

   RCA 

Video 

Jack

J3 

 

 

 

2X3 Pin ISP Header

J4 

   DC 

Power 

Jack

Other Hardware

(4) 1/2” Aluminum Standoff

(4) 4-40 1/4” Machine Screw

* Pre-soldered surface-mount components

** Optional capacitor, makes edges more sloped/fuzzy

 

Try different values!

ReSISTOR IDENTIFICATION

Kit ASSEMBLY INSTRUCTIONS

BILL OF MATERIALS (V1.2)

This DIY kit assembly guide assumes that the builder is 

familiar with basic thru-hole soldering techniques and has 

the ability to identify and mount the electronic components 

included.  A resistor color-code and capacitor code cheat-

sheet has been included for ease of reference.  A complete 

 bill of materials are included on the opposite column

If you’re new to DIY electronics kits or find anything 

confusing about these directions, please visit 

www.lzxindustries.net/products/bitvision

 for links to 

helpful resources and videos about soldering and compo-

nent identification.

1) Mount D1, D2, D9 and D10 diodes, ensure that the black 

band on the diode matches the orientation of the white band 

shown on the PCB layout. Solder and clip leads.

2) Mount all resistors, solder and clip leads. We recommend 

doing a few at a time.  

3) Next mount IC1, IC2, IC3 and IC4.  Ensure that the notch 

on the top of each chip matches the orientation of the notch 

shown on the PCB silkscreen.  Solder and clip leads.  Take 

care to not overheat IC pins while soldering, and to not 

disturb the pre-soldered surface-mount diodes near IC2’s 

pins.

4) Mount Q1. Solder and clip leads.

5) Mount IC5, bending pins so that the protruding metal 

portion of the TO220 package is flat against the circuit 

board.  Solder and clip leads.

6) Mount D7 & D8 LEDs, taking care that the shorter of the 

two leads (the cathode) is oriented towards the left side of 

the PCB (while oriented as shown on the previous column.)  

Solder and clip leads.

7) Mount all ceramic capacitors, solder and clip leads.  We 

recommend doing a few at a time.

8) Mount both electrolytic capacitors, ensuring that the long 

lead (positive side) is placed thru the square solder pad with 

the + sign next to it.  Solder and clip leads.

9) One at a time, mount jacks, headers, potentiometers and 

switches and solder in place.  We recommend to solder only 

one pin first, then check to make sure the part is resting 

flush against the PCB.  If not, the joint can be reflowed and 

the part repositioned before soldering in the remaining pins 

and mounting tabs.

10) Install a resistor lead clipping as a wire bridge across 

the pins shown under the resistor diagram to the right.  

You’re done!

STEP BY STEP

Wire bridge (see step 10):

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