Composite Video Cable
Project: Cable for video output to monitor.
Target : C64, C128, SX64
Time : 20 min.
Cost : <10 US$
Use : Connect computer monitor to C-64 instead of TV, which
usually gives you a picture much better than a TV set.
If your monitor also has a chrominance and a luminance
input, you should rather build a chroma/luma cable
which improves the display quality even more.
Cable which connects to the C-64's audio/video jack and to the
composite video jack of your monitor. Additionally, it offers a
SID output and a SID input plug.
Most monitors have a jack for a composite signal. This signal
comprises the color information, the brightness information
and the synchronization signal. Since it is unmodulated (as is
necessary for operation on a TV with antenna jack), the display
quality is better than the quality of a picture which is first
modulated and sent to the TV where it gets demodulated again,
which implies information losses and distortions.
- ~1.5-2 m coax three-core cable, each core shielded
- 1 5-pin DIN connector (male)
- 2 cinch plugs (male)
- 1 cinch plug (female)
- Disassemble the DIN connector and the cinch plugs.
- Strip the wires at one end of the cable and solder one wire
to each of the pins 3, 4 and 5 of the DIN connector
(See step 4 for pin connection).
Solder the shield of each cable to pin 2 (read: solder the
shield of one cable to pin 2, then solder the shield of the
other wires to the shield connected to pin 2)
- Put the DIN connector's sleeve on the other end of the cable
and move it to the plug so that it is ready for assembly. Do
the same with the cinch plugs' sleeves.
- Now strip the wires at the other end of the cable and solder
each core/shield pair to a cinch plug (female plug to the
AUDIO IN cable). Mark the wires attached to the cinch plugs
with VIDEO OUT, AUDIO OUT, and AUDIO IN according to the
(Click here for ASCII version)
- Connect the cable to your monitor and to the C-64's AV jack.
Be VERY careful with the plug named 'AUDIO IN', the SID's
audio input is very susceptible to overvoltage (>1V), which
includes static electricity.
- Adjust your monitor's input select switch(es) to composite
video input, if necessary; on the 1084 this mode is called
- Switch your monitor and your C-64 on and see if it works
correctly. If it does, try the AUDIO OUT by connecting it to
your amplifier and running a program with music (game, demo).
If you can, try AUDIO IN, too.
- If your equipment has survived step 7, switch it off and pull off
the cable. Assemble the DIN and the cinch plugs.
- Monitor is in the wrong input mode, e.g. Chroma/Luma
- Mixed up cinch plugs
- Soldered wires to wrong pins on one or more of the connectors.
The figure above depicts the plugs from the SOLDER side.
Updated: September 23rd, 1997
Created: February 10th, 1997
Status : Verified
Site copyright © 1997 by Marc-Jano Knopp
This document is part of MJK's Commodore 64 & LCD Page
Brought back to life by Peter Schepers, Dec 10, 2005 because I really liked this site!