Toshiba 4560, Service Manual

Page: 80 / 369

4560/4570 OPTICAL 7 - 18 Nov. 1997 © TOSHIBA
[A4 series]
Main CPU (IC35) Port Input Level Gate array (IC21)
(APS-2) (APS-1) (APS-0) (APS-F) (APS-C) Original
PD3 PD2 PD1 IN30 IN31 size
H H H H H
No original
L L H H H ST
L H H H H ST-R
L L L H H LT
L L H H L LT-R
L L H L L LG
L L L L L LD
[LT series]
Main CPU (IC35) Port Input Level Gate array (IC21)
(APS-2) (APS-1) (APS-0) (APS-F) (APS-C) (APS-R) Original
PD3 PD2 PD1 IN30 IN31 IN32 size
H H H H H H
No original
L L H H H H A5
L L L H H H B5
L H H H H H A5-R
L L L H H L A4
L * H H L H B5-R
L L H L L H A4-R
L L L L L H B4
L L L L L L A3
Note:
H: Original detected
L: Original not detected
*: H and L whichever is sufficient
Port input level (Main CPU: IC35, Gate array: IC21)
= Output level of each sensor