DTC-100 Easiest Fix (no cutting required!)

[Oldie]

To prevent updates to the DTC-100 we must prevent the transistor from sending the voltage to pin 15 of each chip. Two ways to do this at the transistor...

1) Clip the center pin and ground the trace on the board, damaging the unit (physically that is - not operationally).

2) Short the two outside pins of the transistor using a small gague wire. You can even get some small clips, wire them together, attach them to the outside pins. When you want to take the upgrade in the future, remove the short. Unit is back to new.

I did the short and upgrade failed this AM at 5:00. Works great.

Oldie

[SYN MASTER]

What do you mean damaging the unit, physically?

The easiest way I found was to unsolder the center pin on the transistor and then solder a wire into the hole that the pin came out of. Then run that wire to ground.

Easy reversable. But I am unaware of any damge done to the unit when theis mod is done.

SYN

[Electron]

Be careful tying the emitter and base together the transistor is driven by one of the microprocessors it is very likley to cause damage to the processor during an attempted update, It may not kill it the first time but
it likley will eventually.

Electron