Itona Md75
Service Manual
Copyright © 2004-2014 VXL Instruments Limited. All Rights Reserved
Information in this document is subject to change without notice and does not represent a
commitment on the part of the manufacturer. No part of this guide may be reproduced or
transmitted in any form or means, electronic or mechanical, including photocopying and
recording, for any purpose, without the express written permission of the manufacturer.
Every effort has been made to make this guide as complete and as accurate as possible, but
no warranty or fitness is implied. The authors and the publisher shall have neither
responsibility nor liability to any person or entity with respect to loss or damages arising from
the use of information contained in this guide. This disclaimer does not apply in countries
where such provisions are inconsistent with local law.
All Trademarks are acknowledged.
Last Updated: May, 2014.
Version: Md75/SM-21-14
VXL Instruments Ltd.,
House of Excellence,
No. 17, Electronics City,
Hosur Road,
Bangalore
– 560 100, INDIA
www.vxl.net
ii
Warning and Caution
Warning: It is best to wear an electrostatic discharge (ESD) cuff when handling electronic
components (Motherboard, RAM and Power Supply).
Warning: Please ensure that the power supply is switched off before unplugging the power supply
connector from the motherboard.
Caution: Memory modules have a foolproof insertion design. A memory module can be installed in
only one direction. If you are unable to insert the memory module, please reverse the direction and
insert
Tools Required 2
Table 1-1: Tools Required
E. Isopropyl Alcohol ((CH
3
)
2
CHOH)
F. Hot Glue Gun with Rod
Removing the Power Adapter 3
2 Removing the Power Adapter
1. Turn off the power supply to the client.
2. Remove the power cord from the power cord anchor.
Figure 2-1: Removing the Power Cord
3. Unfasten the captive screw holding the power adapter as shown in Figure 2-2.
Figure 2-2: Removing the Power Adapter
To replace the power adapter:
1. Use cable ties to route the new power adapter cable as shown in Figure 2-3.
Removing the Power Adapter 4
Note: Use cable ties of the following dimension:
Smaller cable tie used to route the power cable: 100 mm length.
Longer cable tie used to route the power cable and the adapter: 200 mm length.
Figure 2-3: Routing the New Power Adapter
2. Place the power adapter in the power adapter cradle.
3. Route the DC connector through the power cord anchor.
Dismantling the VESA Dock 5
3 Dismantling the VESA Dock
1. Turn off the power supply to the client.
2. Remove all the cables connected to the client.
3. Unfasten the captive screw holding the Stand Side dock as shown in Figure 3-1.
4. Slide out the Monitor Side dock as shown in Figure 3-1.
Figure 3-1: Removing the Monitor Side Dock
5. Using the Philips Screwdriver, unscrew the four screws holding the Client Side dock and
the power adapter cradle as shown in Figure 3-2.
Figure 3-2: Removing the Client Side Dock
6. Remove and retain the dock and the power adapter cradle.
Note: Retain the screws for reassembly.
7. For reassembly, follow the above instructions in the reverse order.
Removing the Top Cover 6
4 Removing the Top Cover
1. Using the Philips screwdriver, unscrew the screw on the top and bottom strip.
Figure 4-1: Unscrewing the Top and Bottom Strip Screws
2. Slide out and remove the top and bottom strip as shown in Figure 4-2
Figure 4-2: Removing the Top and Bottom Strip
Removing the Top Cover 7
3. Slide and remove the side mask as shown in Figure 4-3.
Figure 4-3: Removing the Side Mask
4. Using the Philips screwdriver, unscrew the six screws holding the aluminum top cover as
shown in Figure 4-4.
Figure 4-4: Unscrewing the Aluminum Top Cover Screws
Note: Retain the screws for reassembly
5. Remove the aluminum top cover.
6. For reassembly, follow the above instructions in the reverse order.
Replacing RAM 8
5 Replacing RAM
1. Remove the power cord and top cover as described on page 5.
2. Apply isopropyl alcohol on the glue holding the DDR3 RAM; pull the glue out using nose
pliers.
Figure 5-1: RAM Socket Clips
3. Remove the existing RAM from the SO-DIMM slot by unlocking the holders and pulling it
outward.
Figure 5-2: Removing the RAM Module
4. Place the new DDR3 RAM in the SO-DIMM slot.
Note: Ensure that the new RAM is of the same specification as the existing RAM.
5. Slide the RAM into place until the clip snap-fits at each end of the SO-DIMM socket.
Replacing the Flash 10
6 Replacing the Flash
1. Remove the power cord and top cover as described on page 5.
2. Using the star screwdriver, remove the two screws holding the Solid State Drive (SSD).
3. Gently pull the SSD from the socket, as shown in Figure 6-1.
Figure 6-1: Removing the SSD
4. Place the new SSD in the socket and press to snap-fit.
Note: Ensure that the new SSD is of the same specification and has the correct software
image installed on it.
5. Replace the top cover as described on page 5 and connect the external cables.
Replacing the Speaker 11
7 Replacing the Speaker
1. Disconnect the speaker cable from the motherboard as shown in Figure 7-1.
Figure 7-1: Removing the Speaker Cable
2. Using the star screwdriver, unscrew the two screws holding the speaker as shown in Figure
7-2.
Figure 7-2: Unscrewing the Speaker Screws
Note: Retain the screws for reassembly
Replacing the Speaker 12
3. Push the speaker out of its slot as shows in Figure 7-3.
Figure 7-3: Removing the Speaker
4. Replace the old speaker with a new one.
5. Using the star screw driver, fix the new speaker in its place.
6. Connect the speaker cable into the speaker port.
7. Replace the top cover as described on page 5 and connect the external cables.
Removing the Front Panel 13
8 Removing the Front Panel
1. Gently pull the bezel tabs outward on both the top and bottom strips simultaneously.
2. Push and remove the front bezel as shown in Figure 8-2.
3. Reverse the thin client to remove the side mask.
4. Unfasten the captive screw holding the Monitor Side VESA dock.
5. Slide and remove the Monitor Side VESA dock as shown in Figure 8-3.
Figure 8-1: Removing the Bezel Tabs
Figure 8-2: Removing the Front Bezel
Removing the Front Panel 14
Figure 8-3: Removing the Monitor Side VESA Dock
6. Using the Philips screwdriver, unscrew the retaining screws holding the Client Side VESA
dock.
Figure 8-4: Removing the Client Side VESA Dock
Removing the Front Panel 15
7. Remove the side mask as shown in Figure 8-5.
Figure 8-5: Removing the Side Mask
Note: Ensure that the position of the inlay card does not change when the client is
reassembled.
8. Apply isopropyl alcohol on the glue holding the cables; pull the glue out using nose pliers.
9. Unplug the cables.
10. Using the star screwdriver, unscrew the screw holding the Front Panel.
Figure 8-6: Unscrewing the Front Panel Screw
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