7bit Wicher CDTV Manuel utilisateur
Wicher CDTV
8MB SDRAM, IDE Controller
USER GUIDE
Version 1.1
Wicher CDTV
2
Overview
Wicher CDTV card has been designed for the Amiga CDTV line of computers. It should be installed in the original CPU
socket that is located on the Amiga’s motherboard.
Wicher CDTV provides 8 MB of additional SDRAM FAST RAM memory, and the IDE controller. In order to properly support
the IDE controller, Kickstart 2.05 (37.350) or newer is required. The other prerequisite is BootROM v2.30 or newer.
In the Box
The complete package contains:
Wicher CDTV expansion card in the protective antistatic bag (the CPU is not included),
Connection cables (2 pcs.)
Preparing Your Amiga
Any action regarding your Amiga’s case disassembly should be performed with the computer being powered down.
Before installing Wicher CDTV card one should remove Amiga CDTV’s case. Next the U51 chip (MC68000) should be
located and removed from its socket. The operation should be performed very carefully, using adequate tooling.
Microprocessor
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Installing the CPU in Your Wicher CDTV Card
Wicher CDTV card supports the following processor models:
MC68000, MC68HC000, and MC68010 in the DIL-64 packaging.
The CPU should be installed in the socket located on the card, in the position indicated in the following picture.
Correctly installed MC68000 chip
CAUTION!!!
Installation of the CPU should be performed in accordance with the markings visible on the socket and the chip itself.
Incorrect installation may result in damaging the CPU, the card or the computer.
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Wicher CDTV Card Installation
Installation of the card should always be performed with the Amiga being powered down.
Wicher CDTV card has been designed for installation inside the Amiga CDTV computer.
After removing the original MC68000 CPU, one can start the proper Wicher CDTV card installation. In order to carry it out,
the pins found at the bottom side of the card, should be carefully inserted into the U51 chip socket, and then the card
should be gently pressed, until it seats firmly.
As the next step, one should connect the two provided cables to the card’s SV1 port, following the instructions presented
below.
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The INT2 signal of the SV1 port should be connected to the 21st pin of the U9 (ODD CIA A) chip, whereas the OVR signal of
the SV1 port should be connected to the 29th pin of the U12 (Gary) chip. Both of the aforementioned U9 and U12 chips
should be easy to locate on Amiga’s motherboard.
Correctly connected signal cables
CAUTION!!!
Please take special care when installing the PCB board and connecting the signal cables. Incorrect installation may
result in damaging the computer or the turbo card.
When Wicher CDTV card is properly installed, you can finally put it through its paces.
SV1 port location
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X2 Jumper Settings
Position 0 –enable / disable RAM
Position 1 –enable / disable IDE controller
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IDE Device Installation
Wicher CDTV’s built-in IDE controller uses the IDE44 port that is compatible with devices such as hard drives and IDE-
CF/IDE-SD adapters. When installing any IDE device, please ensure the correct orientation of the pin no. 1 by following the
labeling on the Wicher CDTV card.
More information on Wicher CDTV and other 7-bit products can be found on our website, available at: https://7-bit.pl
IDE connector location
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