Aaeon PCM-6890B Installing

In an m400

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TB147 (Rev1) - Installing An Aaeon PCM-6890B In An M400

Overview

This document describes the procedure for installing the Aaeon PCM-6890B motherboard in an M400

console. This motherboard is a replacement in systems that have an Acrosser motherboard and an NEC 10.4"

LCD screen. Below you will find a list of all the components that you should have received with the Aaeon

motherboard.

1. Aaeon PCM-6890B Motherboard, complete with CPU and memory

2. Heat sink, fan w/ mounting bracket and 2 sets of 3/4" and 1/4" standoffs

3. LCD descrambler card LCD_DES 020703, 50 Pin

4. 50 pin LCD cable

5. ATX Power Supply

6. Aaeon Hard Drive cable

7. Aaeon Keyboard and mouse cables

8. Ethernet Cable

9. Misc. power extension cables

Also you will need to retain the following parts from the M400 for use with the Aaeon motherboard:

1. Floppy Drive cable

2. LPT1 cable

3. Serial cable

4. ATX power supply, if fitted

Installation

The first step in the installation process is to remove all of the old components. You must remove the old

motherboard assembly, complete with CPU, memory and heatsink. You must also remove the old LCD

descrambler card and LCD cable. You will no longer need the existing Ethernet cable, mouse cable, keyboard

cable or hard drive cable. If the power supply is not of the ATX type, then you will also need to remove it. This

document contains the recommended installation procedure. Follow it exactly to avoid any problems. If there

is any confusion over any of the instructions, please refer to picture 1 of an Aaeon (pic. 1, shows each of the

cables, their labels as well as the connection of pin 1.). Picture 2, shows proper installation of fan and bracket,

and picture 3 shows an Aaeon installed in M400 console.

1. Install the Aaeon motherboard in the M400, on the existing motherboard standoffs

2. Attach the new 50-pin LCD descrambler card to the LCD screen using the existing screws and standoffs. It

is important that you use the new LCD descrambler card, failure to do so will damage both the motherboard

and LCD

3. Install the LCD cable; one end connects to the descrambler card, and the other to CN10 on the

motherboard. It is vital that the red stripe on the cable is attached to Pin 1 at each end. On the motherboard

Page 1 Follow it exactly to avoid any problems. If there is any confusion over any of the instructions, please refer to picture 1 of an Aaeon (pic. 1, shows each of the cables, their labels as well as the connection of pin 1.). Picture 2, shows proper installation of fan and bracket, and picture 3 shows an Aaeon installed in M400 console.
Page 2 3. Extra care must be taken with the ATX power connector so that is does not interfere with the bottom of the CPU7 card. A picture of an Aaeon installed in an M400, with the cables routed as suggested can be seen in picture 3.
Page 3 Picture 2: Correct installation of fan and bracket on the motherboard: Picture 3: Aaeon motherboard installed in an M400: Notes: 1. Ensure that the LCD Descrambler card and cable are correctly inserted, shown in picture 4. 2. Check that the CPU7 has enough clearance above all the cables on the motherboard, especially the ATX power cable.
Page 4 Picture 4: Aaeon motherboard LCD Descrambler card:...
Page 5 Document History Rev1 Created on 2002-08-08...