The Salvage: Composite to RF Converter

This is one the first in the series of The Salvage. How to salvage old electronic equipment for valuable parts and IC's. Today we will look at an old, locally made Composite video to RF converter. I bought this to connect my Playstation 2 with an old TV at home.

DETAILS (as on device):

Pooja Audio-Video To RF
Video C.D. Converter
Model V-CD 250
Made in India

How this works is you connect your composite video (yellow) to the black connector at the back and one audio (no stereo) to the red and the RF output to your TV RF input (old televisions had this, if you are from that era). Set at appropriate channel and fine tune with the pots at the back and see the magic happen.

Now this little device is useless, most of the television sets that come these days are equipped with composite connector (Yellow, Red, White), even those are near extinction, being replaced by HIdef protocols like HDMI. So, I did what any sensible hobbyist would do, salvage the parts.

Observation:

1. Pretty good number of useful parts like 2 pots, 1 Fuse holder etc

2. Came to know which IC was used to convert composite video to RF. TOSHIBA (Jap) TA8637BP

Parts Obtained:

2 Composite(RCA) female sockets: They were extremely useful for some of my projects.

1 RF male socket.

2 potentiometers with nice black knobs: unknown resistance range, can be checked.

1 Fuse holder: Never had one of these, can be useful.

1 Composite to RF converter IC: TOSHIBA (Jap) TA8637BP: This was the only IC on the board. I think this IC can be used to broadcast a signal by antenna with a Compostie video input. Have to try it out. Click here for TA8637BP datasheet.

Parts discarded:

There were a few parts that I did not take from the Converter, it is ultimately your choice.

1 Transformer: Unknown I/O voltage, but measurable.

1 Power capacitor.

<several> Resistors and inductors.

<several> wires.

1 Switch: Can be useful.

1 KIA 7812p: Generic 12 Volt Regulator by KIA, can be useful.

That is all for now, keep an eye on The Salvage series for interesting salvages from old devices.
Happy Tinkering!