CN: 4790
Rev: B
HARDWARE ENGINEERING ADVISORY CUSTOMER NOTIFICATION
SUBJECT: Voltage Out Of Range Errors
DATE: 27 Jan 2011
PRODUCT: AVP2.5, AVP3.0
MODEL: ALL
REASON FOR CN REVISION:
Revision A – 27 Jan 2011: Released to distribution contacts.
Revision B – 04 Aug 2011: Added parts for LXS Slant conversion machines (Table 1)
APPLICABLE AREAS:
All gaming jurisdictions.
SYMPTOMS:
1. The machine may enter a 3.3V OUT OF RANGE or 5V OUT OF RANGE error condition.
2. Unexplained machine resets may occur. If the machine is resetting unexpectedly, check the error log
for voltage out of range errors.
CAUSE:
A phenomenon called contact fretting may have occurred on the tin-plated contacts of the ATX power
cable. Fretting occurs when micro-vibrations cause the mating surfaces to move slightly, causing a thick
oxide layer to form over time, typically after 18 months. This oxide layer can cause extremely high
resistances, causing significant voltage sag at even nominal current draw.
SOLUTION:
Replace both the external power supply harness (machine-side) and the internal brain box power supply
harness on AVP 2.5 or AVP 3.0 machines experiencing 3.3V OUT OF RANGE or 5V OUT OF RANGE errors.
These harnesses must be replaced as a set because they use gold plated contacts to eliminate the fretting
issue.
As a temporary solution while waiting for new parts, disconnect and reconnect the brain box ATX power
connector several times with the machine power off. This will remove most of the oxide and provide shortterm relief.
SCOPE OF SOLUTION:
The solution applies to all machines with AVP2.5 and AVP3.0 brain boxes that use external ATX power
supplies. Affected brain boxes are P/N 50061400W, P/N 50062001W, P/N 50062100W, and P/N
50062102W.
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For additional information, contact your IGT representative. For Customer Notifications, PAR sheets and Program Summary Reports online, visit
the IGT Web site (www.IGT.com).
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PARTS REQUIRED:
For every machine to be retrofitted, a kit of two harnesses must be used. It is extremely important that
both harnesses are used in conjunction and never mixed with older (existing) stock. Use the following
table to determine which parts are needed based on cabinet and electronics:
Cabinet(s)
Electronics Machine-Side Harness P/N
Brain Box Harness P/N
G23 G20/GMLD, TrimLine, GL22, LXS
(new AVP2.5 build)
AVP2.5
60501400W
60500400W
G22
AVP2.5
60501300W
60500400W
SAVP/SMLD, G17
AVP2.5
60501100W
60500400W
G20BT
AVP2.5
60501200W
60500400W
LXS Conversion (Previous 2.0 Machine)
AVP2.5
62309004W
60500400W
G23 G20/GMLD, TrimLine, GL22, LXS
(previsous new AVP2.5 build – coverted
to 3.0)
AVP3.0
60500600W
60500500W
G22
AVP3.0
60500800W
60500500W
SAVP/SMLD, G17
AVP3.0
60500700W
60500500W
G20BT
AVP3.0
60500900W
60500500W
LXS Conversion (Previous 2.0 Machine)
AVP3.0
62309005W
60500500W
BC20, GL20
AVP3.0
60501500W
60500500W
Table 1
DATE PARTS AVAILABLE:
17 Jan 2011
TOOLS REQUIRED:
Flathead screwdriver
Small mallet (optional)
PROCEDURE:
NOTE: To prevent ESD damage, refer to CN3160 for proper machine access.
1. Open the main door and turn the machine power off.
2. Remove the brain box from the machine and set it aside for rework.
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For additional information, contact your IGT representative. For Customer Notifications, PAR sheets and Program Summary Reports online, visit
IGT's Web site (www.IGT.com).
CN4790
3. Locate the ATX harness in the machine or on the outside of the brain box. This would be the power
harness connected to the front of the brain box. Take note of its routing. Remove and environmentally
recycle this harness.
4. Install the proper machine-side harness as indicated in Table 1. Make sure the new harness has the
same routing as the harness that was removed in Step 3.
NOTE: For AVP3.0 machine-side harnesses, it is extremely important that the cable ends are
matched to the appropriate device. The end to be plugged into the brain box is labeled for this
reason. Make sure the end labeled BRAIN BOX is attached to the brain box and the other end is
attached to the ATX power supply. See Figure 1.
Connector to be
plugged into brain box
Brain box label
Figure 1
5. Locate the ATX harness installed inside the brain box. See Figure 2 for the AVP 2.5 brain box and
Figure 3 for the AVP3.0 brain box. In some cases, the bulkhead section of the harness is glued into
the enclosure. If the connector is glued, use a small mallet to hit the large connector toward the
inside of the brain box to remove it from the metal panel. Otherwise, squeeze the locking ears and
use a flat blade screwdriver to dislodge the connector.
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For additional information, contact your IGT representative. For Customer Notifications, PAR sheets and Program Summary Reports online, visit
IGT's Web site (www.IGT.com).
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ATX connector on AVP 2.5
brain box
Figure 2
ATX connector on AVP 3.0
brain box
Figure 3
6. Open the brain box and locate the other end(s) of the ATX power cable. Take note of the
connection location. Remove the old harness and environmentally recycle it.
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For additional information, contact your IGT representative. For Customer Notifications, PAR sheets and Program Summary Reports online, visit
IGT's Web site (www.IGT.com).
CN4790
7. Install the proper brain box harness, referenced in Table 1, in the same location/orientation as the
harness removed in Step 6.
8. Reinstall the brain box and connect all cables and harnesses.
9. Turn the machine power on.
10. Verify the machine is clear of any error conditions and ready to release for play.
Page 5 of 5
For additional information, contact your IGT representative. For Customer Notifications, PAR sheets and Program Summary Reports online, visit
IGT's Web site (www.IGT.com).