Introduction

• Trimode Units - DP5-210,310,410. DP5-212,312,412. DPV5-212,322,422. DPV5-210,310,410.
• Baseband Units - DPBB-222,322,422. DPBB-212,312,412.

This fix is designed to permanently turn on either a working unit or one that has been shut down. Once the modification has been installed correctly, all channels will be received in the clear.

Several models of the Starcom 6 exist, and the same model number can even have differnet board layouts. Make sure you are working on a Starcom 6 and not a Starcom 5 or a Starcom 7 since some cable companies are using a combination of these. Two distinct version of the Starcom 6 are avalable (Baseband and Trimode) and are not compatable with each other. The most common type is the Trimode gated sync descrambler designated as DP5 or DPV5. The other type is the baseband descrambler designated as DPBB. The first number following the dash indicates its original channel output (i.e. DPV5-312 is a channel 3 output unit). Some Trimode units have volume control which is designated by a 'V' in the model number. All baseband units have volume control.

Instructions

• To open the unit you must remove the GI star screws. Either obtain a custom star driver bit or use a small pair of flush cutters placing the two blades into oppsite notches and turning.
• Place lid upside down to the front or the right side.
• Locate the tamper switch by one of the cover screws or by the display. Hold the metal part of the switch down and us a soldering iron to melt the plastic underneath to hold it closed.
• Program a 2764 EPROM or a 27C64 EPROM with this binary or Intel Hex file.
• Remove the 28 pin chip in a socket, it will normally be marked 2764 on the chip. Remove this chip an make sure to note the position of pin #1.
• Insert the newly programed 2764 in this empty socket.
• Next locate a 40 pin chip marked PIC 7040. It will normally be marked IC6 or U4 on the circuit board. Cut pin # 36 in the center (so it can be soldered back if you desire.)
• Attach or solder a wire to the chip side of this pin and connect it to Ground.
• Replace cover and power up.

Some units may reset the channel output. Try your TC on channels number 2, 3 and 4. If this does not work check the green wire towards the rear of unit. it should have +5v on it, if not apply +5 volts and video will return.