Toshiba DP120F, Service Manual

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March 2000 © TOSHIBA TEC 7-39 DP120F/DP125F Circuit Description
3.6.4 Restoration from Super Power Save Mode
Restoration from the Super Power Save Mode is achieved by any of the following:
• Key depression PWRSVKEY signal (Key input detect signal) = LOW
• Placement of document DDET signal (Document detect signal) = LOW
• Off-hook HOOK1 signal (Hook detect signal) = LOW
• CI detection CI1 signal, CI2 signal (CI1, CI2 detect signal) = LOW
• Line current detection REVA1 signal, REVA2 signal, REVB1 signal, REVB2 signal
(Line current detect signals) = LOW
• Detection of an interrupt signal from the PC
2WININT signal (PC interrupt signal) = LOW
• Detection of an interrupt signal from the GF-1010 (NIC)
AU1NINIT signal (NIC interrupt signal) = LOW
When CI is detected, the Sub-CPU causes the CIREQ signal to go LOW and outputs it to the I/
OP-2 GA.
The power save LED lights (When in Auto Power Save Mode) or goes out (When in Manual
Power Save Mode) after restoration from the super power save state is achieved.
Signal Name Type Active Description Destination
PWSV O H Power Save Control Signal LVPS
PWRSVACK I H Power Save Acknowledge Signal Sub-CPU
PWRSVNACK I H Power Save Non-acknowledge Signal Sub-CPU
PWRSVDI O L Port Enable Signal IC18,19
LEDBLK I L Power Save Reserve Signal I/OP-2 GA
PWRSVLED O L Power Save LED Lighting Signal Operation
panel PBA
CIREQ O L CI Request Signal I/OP-2 GA
PWRSVREQ O L Power Save Request Signal I/OP-2 GA
PWRSVKEY I L Key Input Detect Signal Operation
panel PBA