For installation in an A3000T, A1000 and A600, additional parts are required that are not
included in the normal Indivision ECS package. If you want to install the flickerfixer in one
of these computers, please download the respective manual from our website
www.icomp.de. Please understand that we cannot cover these extremely rare Amiga
models in this short manual.
Step 2: remove obstacles
Indivision ECS is already trying to avoid as many obstacles as possible in as many Amiga
models as possible. However, a fully universal shape is impossible due to the diversity in
design of Amiga revisions, so a few motherboard revisions require modifications to
accommodate Indivision ECS.
We are not aware of any Amiga 500 or CDTV version that requires modifications. In this
case, you can skip to step 3 of this manual.
In A3000 desktop computers, the rechargeable battery must be removed to make space
for Indivision ECS. This has already been done on many computers, because the batteries
are already years beyond their lifecycle. Leaking batteries are a danger to the whole
computer, so any NiCad cell should be removed from all Amiga computers. We
recommend to use high-quality 3V cells as a replacement.
Removing the battery should be done by an expert (such as a radio- and television
engineer). Breaking away the contacts of the battery could lead to serious damage of the
mainboard and is not recommended.
On A2000 versions 4.1 and 4.3, the electrolytic cap C225 (near the Paula chip) must either
be replaced by a physically smaller type (max. 8.5mm height), or moved to a different
place by using short wires (max. 2 inches). We recommend using a new radial type with
470µF and 16V. Since low-profile capacitors are extremely hard to find, we recommend
using an 8mm diameter type that can be mounted flat (for example Digi-Key part number
P5141-ND). This job should only be done by an expert, for example a radio- and television
engineer. Please take the time to completely remove the board from the case. Removing
the capacitor by force from the top side may damage the mainboard and is not
recommended.
Step 3: installation of Indivision ECS
Carefully remove the Denise chip from it's socket, for example by using a flat screwdriver
as a lever. Ensure to only gently lever one side a few millimeters at a time. The Denise
chip is extremely delicate, and pins easily bend or break away. If a pin is broken off, it
normally cannot be fixed, so you should be extremely careful with this step.
Now insert the chip into the socket of Indivision ECS. The correct orientation is indicated
by the notch in the socket, which must face into the same orientation as the chip's notch.
Carefully insert the flickerfixer into the empty socket of the mainboard. Once again, the
notch indicates the correct orientation. The notch orientation is printed on the mainboard,
but it's mostly covered by the socket itself, so it may not be visible on all board revisions.
The following pictures should provide all necessary information.
It is important to ensure that you do not displace the flickerfixer when you insert it into the
socket. Displacing the unit by one pin can cause maximum damage to both the computer
and the flickerfixer. There is no protection a ainst this possible fault. It's your
responsibility to ensure proper connection between the motherboard and the
flickerfixer before switchin the computer back on.