EPSON Stylus Photo
Rev. A
2-24
2.2.2.4 Timer Circuit
The Timer IC mounted on the C209 main board counts how long the printer is not used.
The lithium-battery (BAT1) is mounted on the board and performs power supply to the Timer IC when the
power is off.
The followings explain about operation of this circuit.
When the printer is on, power is supplied to the Timer IC by ap5V through
the D4.
This power is also used to oscillate the outer CR1. The oscillation signal is
input to XIN terminal.
When the printer is turned on, the Timer IC outputs power off time as serial data to the gate
array.
Once the printer is turned off, 3VDC of BAT1(lithium battery) is supplied as power source for
the Timer IC through D1.
While the printer is on, +5V supplied through D4 is higher than +3V of the lithium battery,
therefore, the power is not being consumed from the lithium battery.
TCE
TIO
TCLK
TDATA
/SCK
SIO
1
6
7
VDD
XOUT
XIN
CR3
+5V
E05B43YA
(IC2)
S-3510ANFJ
(IC10)
8
2
3
4
125
124
123
126
5
CS
TPOUT
+5V
VSS
D4
D1
R3
BAT1
CR2032
Figure 2-24.Timer Circuit Block Diagram
Содержание Stylus Color
Страница 1: ...EPSON COLOR INK JET PRINTER EPSON Stylus Photo SERVICE MANUAL SEIKO EPSON CORPORATION 4007542 ...
Страница 5: ...v REVISION SHEET Revision Issued Data Contents Rev A March 26 1997 First issue ...
Страница 125: ...Chapter 6 Maintenance 6 1 OVERVIEW 6 1 6 1 1 Cleaning 6 1 6 1 2 Service Maintenance 6 1 6 1 3 Lubrication 6 2 ...
Страница 130: ...Chapter 6 Maintenance Rev A 6 5 No 3 No 11 GEAR 34 No 1 No 2 10mm 2mm 2mm ...
Страница 131: ...EPSON Stylus Photo Rev A 6 6 No 5 No 4 No 4 No 4 GEAR 23 2 GEAR 16 40 8 GEAR 67 2 COMBINATION GEAR 8 14 4 No 6 No 7 ...
Страница 132: ...Chapter 6 Maintenance Rev A 6 7 No 9 No 10 HOPPER ASSEMBLY FRAME ASF No 8 HOLDER PULLEY DRIVEN ...
Страница 141: ...Appendix Rev A A 8 A 4 Circuit Board Component Layouts Figure A 2 C209 Component Layout ...
Страница 142: ...EPSON Stylus Photo Rev A A 9 Figure A 3 C206PSB Component Layout ...
Страница 143: ...Appendix Rev A A 10 Figure A 4 C206PSE Board Component Layout ...
Страница 144: ...EPSON Stylus Photo Rev A A 11 Figure A 5 C209 PNL Component Layout ...
Страница 145: ...Appendix Rev A A 12 A 5 Exploded Diagrams Figure A 6 EPSON Stylus Photo Exploded Diagram 1 ...
Страница 146: ...EPSON Stylus Photo Rev A A 13 Figure A 7 EPSON Stylus Photo Exploded Diagram 2 ...
Страница 147: ...Appendix Rev A A 14 Figure A 8 EPSON Stylus Photo Exploded Diagram 3 ...
Страница 148: ...EPSON Stylus Photo Rev A A 15 A 6 Circuit Diagrams Figure A 9 C206PSB Board Circuit Diagram ...
Страница 149: ...Appendix Rev A A 16 Figure A 10 C206PSE Board Circuit Diagram ...
Страница 151: ...EPSON SEIKO EPSON CORPORATION ...