Kippzonen Brewer MkIII Manual de usuario descargar pdf (Pagina 13)

MKIII SERVICE MANUAL

6. Line Driver

If the reset of the motors is heard and seen, but there is no message sent to the PC, then there

may be a problem with the line driver on the Main Electronics board. Ensure that power is turned

off and remove the Main Electronics cover plate and replace IC U11, (on a socket 2 inches up and

2 inches to the left of the LED). Make sure to use proper grounding precautions before touching

the electronics board. Leave the cover plate off and turn on the instrument. The motors should be

observed to reset and if the computer was left in the serial communications program, the Brewer

reset message will be displayed on the screen. Exit the communications program and launch the

Brewer operating program. Normal Brewer commands can be used for checking correct operation.

7. Check Mode of Microprocessor

If there is still no operation, there may be a firmware problem, or a problem on the Main Electronics

Board, so the functionality of this board should be tested.

There is a Red status LED located near the bottom left hand side of the board - it should be

flashing slowly in ‘Cosmac mode’ as per the following table. If the Brewer is in some other mode

change back to the Cosmac mode (step 10).

LED Mode indication

¼sec

Cosmac mode normal

operation

Off

Cosmac mode with

configuration missing

Off

Loadmode waiting for code

to be downloaded

Off

Loadmode with bad flash

memory

Off

Loadmode with good flash

memory

Off

Opmode with configuration

present

Off

Opmode without

configuration present

Off

Checking Flash memory

Off

Changing from load to

cosmac or load mode

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 130 131

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Kippzonen Brewer MkIII Manual de usuario Pagina 13

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