Service manual

EPSON Color Copy Station 8200 Revision A
Adjustment Adjustment 62
o
B UNIT Check
This function checks interruption from bill recognition unit (BILL) and
memory and RGB input.
Based on the test result, the display indicates "OK" if it performs
right and indicates ’NG’ if it does not.
Press “STOP” to go back to the maintenance board.
5.1.1.4 Flash ROM Sum Check
This hardware check sum check function checks the firmware check
sum housed by Flash ROM on the ECP board.
On the maintenance mood main display, press “4” of ten key, and the
Flash ROM sum check screen appears as shown below.
Based on the check result, the display indicates "OK" if it performs right
and indicates ’NG’ if it does not. Also, the display indicates the sum
value.
Press “STOP” to go back to the maintenance mood main menu.
5.1.1.5 H/W All Check Printing
On the maintenance mood main view, press “5” of ten key. After the
hardware all check done inside, the check result will be printed out.
It takes about one minute to check all. The checking items are shown
below.
After all the process finished and the result printed out, the display goes
back to the maintenance mood main view. The “STOP” button also let
you go back to the maintenance mood main view.
[3.2] B UNIT
a. ROM OK
b. RAM OK
c. INTERRUPT OK
d. RGB1 OK
e. RGB2 OK
[4] FLASH_SUM_CHECK
SUM CHECK OK
SUM 65539
1. RGB CONTROL CHECK
1) Memory
a. TET
b. MOIRE
c. SHARPNESS
d. CMM
e. SRAM
1) Interrupt
a. DMA
2) RGB Data Pass
a. PCI TET
b. TET MOIRE
c. MOIRE SHARP
d. SHARP CMN DMA
2. B UNIT CHECK
a. ROM
b. RAM
c. INTERRUPT
d. RGB1
e. RGB2
3. ISA CHECK
a. DISPLAY RAM
b. EEPROM
4. FLASH ROM SUM CHECK
a. SUM CHECK
b. SUM