UP-X200 (serv.man9). Service Manual - Sharp EPOS Service Manual (repair manual). Page 24

UP-X200

Diag PROGram

– 22 –

Press the [4] key to bring up the screen [Screen 2-18-1] DRAM Test
Screen while the [Screen 2-4-2] Menu Screen 2 is displayed.
In this test, the unit displays the on-the-fly address and writing data, the
buzzer sounds when all tests are passed, and the [CL] key is ready to
enter. Press the [CL] key to return to the [Screen 2-4-2] Menu Screen 2.
If the unit encounters an error, it comes to a stop immediately, the
address where the error occurs, the address data and intended data are
shown on the screen, and the buzzer sounds. Press the [CL] key to
return to [Screen 2-4-2] Menu Screen 2.

In this test, clear Address of DRAM which is not used in the diag soft-
ware.
with 00000000h, a after verifying 00000000h, write 55555555h a after
verifying 55555555h, write FFFFFFFFh a verify FFFFFFFFh.

Press the [5] key to bring up the screen [Screen 2-19-1] Flash Test
Screen while the [Screen 2-4-2] Menu Screen 2 is displayed, and exe-
cute the FLASH ROM test.

In this test, check the manufacturer code BOh and device code EDh as
the flash ROM ID, and next erase, write, verify and erase the address
from 0c0000h to 0EFFFFh.
Write the address with the addition of the eight bits to the left from the
first bit of the address in 16-bit blocks.
When all tests are passed the buzzer sounds and the [CL] key is ready to
enter, then press the [CL] key to return to [Screen 2-4-2] Menu Screen 2.
If the unit encounters an error, it comes to a stop immediately, the
address where the error occurs, the address data and intended data are
shown on the screen, and the buzzer sounds. Press the [CL] key to
return to [Screen 2-4-2] Menu Screen 2.

Press the [8] key to bring up the screen [Screen 2-20-1] CF Card Test
Screen while the [Screen 2-4-2] Menu Screen 2 is displayed.

After the test is executed, the SYCARD executes the tests and displays
the results on the screen..

First, insert SYCARD for the test into a CF slot after the message

"Please Insert Card ..". is shown.
A list will be shown as follows and tests start at the top of the list and are

executed.

Insert the SYCARD for the test into the CF slot within 5 seconds, or else
an error will result.
When all tests are completed properly, the buzzer sounds and the [CL]
key is ready to entry, then press the [CL] key to return to [Screen 2-4-2]
Menu Screen 2.
Even if there is an error in testing, the tests will be executed until all of
the tests are completed, and then the unit comes to a stop and displays
an error message on the screen.
Press the [CL] key to return to [Screen 2-4-2] Menu Screen 2.

Press the [9] key to bring up the screen [Screen 2-21-1] MMC Card Test
Screen while the [Screen 2-4-2] Menu Screen 2 is displayed.

In this test, the MMC card test is executed.

Insert the MMC card into its slot and wait until CID and CSD data from
MMC card are displayed on the screen and the MMC card is extracted

from the slot automatically. When the MMC card is extracted from the

slot, the unit returns to [Screen 2-4-2] Menu Screen 2.
If you press the [CL] key while you wait for the unit to move to the ready

state to insert the MMC card, the unit will return to [Screen 2-4-2]

Menu Screen 2 automatically.
If you press the [CL] key while you wait for the unit to move to the ready state

to extract the MMC card, the unit will return to [Screen 2-4-2] Menu Screen 2.

DIAG Menu 1.00U   (2/3)

2-4. DRAM

write > 00000000 

DIAG Menu 1.00U   (2/3)

2-5. Flash ROM

ID = MFC : 00B0, DEV : 00ED
Erase > 0c 

> CD#1, CD#2

> D15-D8, REG#, WE#, RD#

> D7-D0, CE1#, IOWR#, IORD#, WAIT#

> A10-A0, CE1#, CE2#, OE#

> Vcc, BVD1, BVD2, WP, RDY

> VS1, VS2

DIAG Menu 1.00U   (2/3)

 2-8. CF  

DIAG Menu 1.00U   (2/3)

 2-9. MMC
Wait for MMC CARD

                       CL: Exit