Itona TC75yyd
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: TC75yyd/SM-20-14
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. E. Nose pliers
F. Isopropyl Alcohol ((CH
3
)
2
CHOH)
G. Hot Glue Gun with Rod
Removing the Thin Client Bracket 3
2 Removing the Thin Client Bracket
1. Turn off the power supply to the client.
2. Remove all the cables connected to the client.
3. Unscrew the thumbscrews provided at the bottom and top of the bracket.
4. Pull the thin client out of the bracket as shown in Figure 2-1.
5. For reassembly, follow the above instructions in the reverse order.
Figure 2-1: Thin Client Bracket
Removing the Side Cover 4
3 Removing the Side Cover
1. Using the Hex screwdriver, unscrew the two screws as shown in
Figure 3-1.
Figure 3-1: Removing Side Cover Screws
Note: Retain the screws for reassembly.
Figure 3-2: Removing Side Cover
2. Slide and remove the side cover as shown in Figure 3-2.
3. For reassembly, follow the above instructions in the reverse order.
Replacing RAM 5
4 Replacing RAM
1. Remove the power cord and side cover as described on page 4.
2. Apply isopropyl alcohol on the glue holding the DDR3 RAM, pull the glue out using nose
pliers.
Figure 4-1: RAM Socket Clips
3. Remove the existing RAM from the SO-DIMM slot by unlocking the holders and pulling it
outward.
Figure 4-2: 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.
Replacing RAM 6
5. Slide the RAM into place until the clip snap-fits at each end of the SO-DIMM socket.
Note: You will hear a distinctive click sound, indicating that the DDR3 RAM is correctly
locked into position.
6. Apply hot glue on the DDR3 RAM holder using Hot Glue Gun to hold the RAM in place.
7. Replace the side cover as described on page 4 and connect the external cables.
Replacing the Flash 7
5 Replacing the Flash
1. Remove the power cord and side cover as described on page 4.
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 5-1.
Figure 5-1: 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 side cover as described on page 4 and connect the external cables.
Replacing the Motherboard 8
6 Replacing the Motherboard
1. Remove the power cord and side cover as described on page 4.
2. Unplug the cables and connectors as shown in Figure 6-1.
Note:
While replacing the motherboard, ensure that you connect the cables into the same
ports from which you removed them.
COM 3 port is concealed using glue. COM 1 and COM 2 are brought out through
the rear I/O panel.
Figure 6-1: Cables and Connectors
COM 3
Concealed
COM 2
COM 1
Replacing the Motherboard 10
Figure 6-3: Removing Motherboard
5. Replace the existing motherboard with a new motherboard.
6. Using the star screwdriver fix the motherboard using the four available screws.
7. Connect the cables into their respective slots.
8. Using the Hot Glue Gun, apply glue to all the connectors.
9. Replace the side cover as described on page 4 and connect the external cables.
Removing the Power Supply Unit 11
7 Removing the Power Supply Unit
1. Remove the power cord and side cover as described on page 4.
2. Press the clip and disconnect the power supply cable from the motherboard.
3. Press the clip and disconnect the power cable from the AC power socket.
4. Using the star screwdriver, unscrew the three screws holding the power supply unit as
shown in Figure 7-5.
Figure 7-1: Removing the Power Cable
from the Motherboard
Figure 7-2: Power Cable Connected to
the Motherboard
Figure 7-4: Power Cable Connected to
the AC Power Socket
Figure 7-3: Removing the Power Cable
from the AC Power Socket
Removing the Power Supply Unit 12
Figure 7-5: AC Power Unit Screws
5. Remove the power supply unit as shown in Figure 7-6.
Figure 7-6: Removing the Power Supply Unit
6. Replace a new power supply.
7. Connect the motherboard and the power supply cables.
Note: Ensure that the new Power Supply Unit has the same specifications.
8. Replace the side cover as described on page 4 and connect the external cables.
Replacing the Speaker 13
8 Replacing the Speaker
1. Disconnect the speaker cable from the motherboard as shown in
2. Using the star screwdriver, unscrew the two screws holding the speaker as shown in Figure
8-3.
Figure 8-3: Removing the Speaker
3. Replace the old speaker with a new one.
4. Using the star screw driver, fix the new speaker in its place.
5. Connect the speaker cable into the speaker port.
6. Replace the side cover as described on page 4 and connect the external cables.
Figure 8-2: Removing the Speaker
Cable
Figure 8-1: Speaker Cable Connected
to the motherboard
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