Read Sharp MX-PEX2 (serv.man2) Service Manual online
10
Checking connections
Checking connections
The most common causes of problems are faulty and loose connections. Before you
conclude that any internal component has failed, remove, inspect, and reseat all
appropriate connections, and then verify that the problem still occurs.
conclude that any internal component has failed, remove, inspect, and reseat all
appropriate connections, and then verify that the problem still occurs.
Before you touch any parts inside the Fiery X3eTY2, attach a grounding wrist strap.
Touching the metal pan also discharges static electricity.
Touching the metal pan also discharges static electricity.
T
O
CHECK
CABLE
CONNECTIONS
1.
Access and open the Fiery X3eTY2 (see page 8).
2.
Place the Fiery X3eTY2 on a flat surface so that internal components are facing up.
3.
Verify that the battery is properly installed (see page 18).
4.
Inspect the HDD data cable to make sure it is intact.
Faulty data cables are easily overlooked. Check the contact point between the cable and
the connector to ensure that they have not separated. If a data cable is suspect, substitute
it with a tested cable.
the connector to ensure that they have not separated. If a data cable is suspect, substitute
it with a tested cable.
5.
Check the cables of the exhaust fan and the CPU fan.
Make sure that the cables are intact.
6.
Check the service board cable.
Make sure that the cable is intact and properly connected to the service board and the
motherboard. For more information, see page 23.
motherboard. For more information, see page 23.
7.
Verify that the internal power cables are intact and properly connected to the power
supply, HDD, motherboard, and Fiery X3eTY2 power switch.
supply, HDD, motherboard, and Fiery X3eTY2 power switch.
Make sure that the black and white wires are properly connected to the correct leads on
the Fiery X3eTY2 power switch. For more information, see Figure S on page 35.
the Fiery X3eTY2 power switch. For more information, see Figure S on page 35.
The following diagram illustrates the internal cable connections between hardware
components.
components.
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