Olivetti d-Copia 600, Service Manual

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2-3-14
YC6 A7 LCD LOAD O 0/5 V DC LCD LOAD signal
Connected
to the opera-
tion PWB A8 LCD CP O 0/5 V DC
(pulse) LCD CP signal
A9 LCD VSS1 - - Signal ground
A10 LCD VDD O 5 V DC 5 V DC power output
A11 LCD VSS2 - - Signal ground
A12 LCD DISP OFF O 0/5 V DC LCD display: On/off
A13 LCD D0 O 0/5 V DC
(pulse) LCD data signal
A14 LCD D1 O 0/5 V DC
(pulse) LCD data signal
A15 LCD D2 O 0/5 V DC
(pulse) LCD data signal
A16 LCD D3 O 0/5 V DC
(pulse) LCD data signal
A17 VEE_OFF O 0/5 V DC LCD power supply control signal
A18 N.C - - Not used
A19 TP_REM - - Not used
A20 N.C - - Not used
B1 PH_KEY I 0/5 V DC Energy saver key: On/off
B2 PH_LED O 0/5 V DC Energy saver key LED display: On/off
B3 SGND - - Signal ground
B4 PGND - - Power ground
B5 24V O 24 V DC 24 V DC power output
B6 LAMP OFF O 0/5 V DC LCD back light signal
B7 SGND - - Signal ground
B8 5V O 5 V DC 5 V DC power output
B9 DIG LED_8 O 0/5 V DC
(pulse) DIG LED_8 signal
B10 DIG LED_7 O 0/5 V DC
(pulse) DIG LED_7 signal
B11 SCAN_8 O 0/5 V DC
(pulse) SCAN_8 signal
B12 SCAN_7 O 0/5 V DC
(pulse) SCAN_7 signal
B13 SCAN_6 O 0/5 V DC
(pulse) SCAN_6 signal
B14 SCAN_5 O 0/5 V DC
(pulse) SCAN_5 signal
B15 DIG KEY_9 I 0/5 V DC
(pulse) DIG KEY_9 signal
B16 DIG KEY_8 I 0/5 V DC
(pulse) DIG KEY_8 signal
B17 DIG KEY_7 I 0/5 V DC
(pulse) DIG KEY_7 signal
B18 DIG KEY_6 I 0/5 V DC
(pulse) DIG KEY_6 signal
B19 DIG KEY_5 I 0/5 V DC
(pulse) DIG KEY_5 signal
B20 DIG KEY_4 I 0/5 V DC
(pulse) DIG KEY_4 signal
YC7
1 DIG LED_6 O 0/5 V DC
(pulse) DIG LED_6 signal
Connected
to the opera-
tion PWB 2 DIG LED_5 O 0/5 V DC
(pulse) DIG LED_5 signal
3 DIG LED_4 O 0/5 V DC
(pulse) DIG LED_4 signal
Connector Pin No. Signal I/O Voltage Description
Service Manual Y104350-7