SECTION 4
SELF DIAGNOSIS FUNCTION
If no acknowledgement is returned from a device which is turned "ON", the device has a problem.
In this case, one of the LED's responding to the problem device will flicker a defined number of times.
Flickering is operated by lighting the LED's for 60ms each time.
The flickering frequency responding to each failed device is shown below.
Board name | A Board | A Board |
|
|
|
Ref. No. | IC003 | IC300 |
|
|
|
| NONVOLATILE | Y/C JUNGLE |
Device | MEMORY | (TDA8374A) |
| (ST24C04FB6) |
|
|
|
|
Flickering Frequency | 1 | 3 |
|
|
|
All the devices are checked one after another from the left of the table.
If an error is found, the responding LED will start flickering.
So, if more than 1 device have failed, only the one on the left side will flicker.
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