Toshiba 4560, Руководство по обслуживанию

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Nov. 1997 © TOSHIBA 5 - 11 4560/4570 DISPLAY
6 msec 6 msec
Q3
ON
Q3
OFF
ON
ON ON
DSPON0
DSPON1
LEDAT
D7
LP7
LP8
Q2
OFF
Q2
ON
Transmission
LP Signal DSP-ON-0 IC7932 LP Signal DSP-ON-1 IC7932
order
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
For the DSP-ON-0 signal, LEDs and ICs on PWA-KEY1
For the DSP-ON-1 signal, LEDs and ICs on PWA-KEY2
• The signals of DSPON0 and DSPON1 be-
come “H” level by one turn every 6 msec.
• Q2 (or Q3) is turned ON when DSPON0 (or
DSPON1) is “L” level.
• LED ON/OFF signal from PNL is inputted
to the SIN (pin 26) terminal of IC1 through
LEDAT signal line. (Serial data)
• The LED ON/OFF signal is inputted to IC1
in serial is outputted to output terminals of
D1 – D16 in parallel.
(example)
(example)
IC1-6
IC1-7
IC1-9
1 P/3 Paper size IC1-10
2 P/2 Paper size IC1-11
3 P/1 Paper size IC1-12
4 P/0 Paper size IC1-14
5 P/USER Paper size (user adjustment) IC1-15
6 APS Automatic paper selection IC1-16
7 0/3 Original size IC1-17
8 0/2 Original size IC1-19
9 0/1 Original size IC1-20
10 0/0 Original size IC1-21
11 0/USER Original size (user adjustment) IC1-22
12 AMS Automatic magnification selection IC1-24
13 FC All clear IC1-25
(3) Condition of LED lighting
1 The transistor (Q2 or Q3) connected on the anode side of the LED is ON status.
2 Output connected on the cathode side of the LED is “L” level.
When the above conditions 1 and 2 are fulfilled, the LED lights.
Refer to the following LED names which are ON/OFF-controlled by DSPON0/DSPON1 signals.
IC1-6
IC1-7
1 INT Interruption IC1-9
2 P/S Energy saving IC1-10
3 TIMER Timer IC1-11
4 PHOTO Photo mode IC1-12
5 AUTO Automatic exposure IC1-14
6 EXPO1 Exposure display 1 (L MAX.) IC1-15
7 EXPO2 Exposure display 2 IC1-16
8 EXPO3 Exposure display 3 IC1-17
9 EXPO4 Exposure display 4 IC1-19
10 EXPO5 Exposure display 5 IC1-20
11 EXPO6 Exposure display 6 IC1-21
12 EXPO7 Exposure display 7 IC1-22
13 EXPO8 Exposure display 8 IC1-24
14 EXPO9 Exposure display 9 (D MAX.) IC1-25