Keyboard - Siemens A55 Repair Documentation

Level 2.5e
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10 Keyboard

The keyboard is connected via the lines KB0 – KB9 with the EGOLD+.
KB 7 is used for the ON/OFF switch. The lines KB0 – KB5 are used as output signals.
In the matrix KB6, KB8 and KB9 are used as input signals for the EGOLD+.
V1.20
Page 48 of 48
ICM MP CCQ GRM
A55/C55_Hitachi
Company Confidential © Copyright Siemens AG
04/03

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