Villa Rotograph EVO, Руководство по обслуживанию

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SERVICE MANUAL
Troubleshooting
Rotograph EVO (Rev. 1) 8-2
8.1.2. CPU board A5 LED
The following table shows the LED that are present on the CPU board A5,
their significance and the recommended corrective actions in case of
defects. To locate the LEDs, refer to the layout of the CPU board A5
illustrated in chapter 9 of this manual:
LED Function
Status of the LED
under normal
conditions
Corrective actions in case of defect
H2 "+5V" presence
generated inside the
CPU
ON Verify that motors cables and zero
position sensor cables are well inserted
and not in short-circuit to ground.
H3 "+3.3V" presence
generated inside the
CPU
ON Replace the CPU.
H4 "Laser power
supply" presence
ON Verify that lasers cables are well inserted
and not in short-circuit to ground.
H5 ÷÷÷÷ H6
"CAN-BUS" status Blinking Disconnect one-to-one CAN-BUS cables
(see actions for LEDs from H7 to H10)
and verify in which case the LEDs start
blinking; verify the relative cable.
Otherwise replace the Microprocessor
board A6.
H7 "Column
CAN-BUS" device
OFF If blinks, check the X11 cable on both
side. If it is OK, replace the column CPU
board A1.
H8 "Keyboard
CAN-BUS" device
OFF If blinks, check the X18 cable on both
side. If it is OK, replace the Keyboard
PCB A4.
H9 "CPU Generator
CAN-BUS" device
OFF If blinks, check the X20 cable on both
sides. If it is OK, check that the
Generator CPU board A9 is powered ON;
if it is OFF, verify the presence of 230V
on the filter L2 on Generator board A10
and verify the status of the LED H3 (see
paragraph 8.1.1). If all the previows
checks are positive, replace the
Generator CPU board A9.
H12 "Motor power
supply" presence
OFF Check fuse F1: if blown, replace with
new one respecting the value and types.
If it blows again, replace the CPU.
NOTE:
If all the LEDs are OFF, verify the column fuse F3; if it is OK, verify cable
X11 between column CPU board A1 and CPU board A5, on both sides.
Verify the column CPU board A1.
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