Technician Diagnostics - Sirona CEREC AC Manual Del Usuario

Sirona Dental Systems GmbH
Diagnostic Tool CEREC AC
Test Test description / Condition
Display Test Run Control command without test function
Test CPU-1 In the CPU test, the control, address, data
and flag registers of the system process
Test CPU-2
are checked.
Test NPU-1
During the test of the floating point unit
Test NPU-2
(NPU, numeric processing unit), the nume-
ric processor of the system and the inter-
face between the two functions are
checked.
Test Timer In this test, a number is loaded into the
three timer channels and it is then checked
whether the countdown is performed in the
three individual channels at the right speed
(not too slow and not too fast).
Test Keyboard In this test, the keyboard controller circuit
Controller is checked for proper functioning.
Test INT #1 The test tool checks the system interrupt
controller. These controllers contain inter-
Test INT #2
rupt mask registers, in-service registers,
interrupt request registers and all interrupt
request lines. All channels of the interrupt
controllers are checked for problematic,
wrong or missing interrupts.
Test DMA #1 All registers and status ports of both DMA
controllers are checked during this test.
Test DMA #2
The DMA controller is very important for
the operation of a system, since it has se-
parate channels on which I/O units can ac-
cess the system RAM directly. This
enables high data transmission rates wit-
hout having to use the microprocessor.
Test SM Bus This test is used to check the SM bus. This
bus is mainly used for storage battery and
sensor management in systems. The SM
bus is also used to access the SPD data
on the memory modules.
Test WDC___TYP A series of nondestructive tests are perfor-
med on the hard drives installed in a sy-
HDD___Short Self-
stem with these functions. Controller
Test
search and read tests are performed to
Test 3 Minute(s)
check the overall condition of a drive.
Drive #1 __Size
of HDD__RndRd
63 24 599 D3492
D3492.076.03.01.02 03.2011
5.4.2

Technician Diagnostics

Action in case of problems
N/A
➢ Replace the PC.
➢ Replace the PC.
➢ Replace the PC.
➢ Replace the PC.
➢ Replace the PC.
➢ Replace the PC.
1. Check the SATA cable of the hard drive.
2. Check the cable of the hard drive power supply.
3. Replace the hard drive including the hard drive
cable.
PC diagnostic tool
Troubleshooting
17