Knauer BlueShadow V16, Руководство по обслуживанию, Страница: 25 / 30

26 Replacing EEPROM or motherboard
Replacing EEPROM or motherboard
EEPROM The EEPROM chip stores the serial numbers, operating hours
and error messages from the device. Various solutions are availa-
ble for transmitting the EEPROM data:

Insert the EEPROM from the previous motherboard onto the
new motherboard

Read the data from the previous EEPROM using the service
software.
Prerequisite During each service procedure, save or read the EEPROM data!
Procedure

If the motherboard appears to be defective, replace the
EEPROM first. In 90% of all cases, the functionality can be res-
tored in this manner.

Make a digital photo of cabled motherboard

Remove all cables from the motherboard

Carefully remove the EEPROM using a special tool

Insert the EEPROM with the correct orientation into the
motherboard.

Connect the cable with the correct orientation

Check the adjustment of valve position 1

Test the basic functionality of the valve using an injection

For plugs without mechanical protection, this must be secu-
red using silicone as transportation protection.
Tools

Tweezers

Allen screwdriver, size 3

EEPROM tool, alternatively small screwdriver
Duration 15 minutes
Level of difficulty Level 4 (level 1 very easy, level 7 very difficult)
Overview of motherboard
Firmware The firmware version is indicated by a sticker on the micropro-
cessor.
Legend
EEPROM (A)
Microprocessor (B)
Rear side of device (C)
Fig. 26 Motherboard with EEPROM and microprocessor
C
A B