Toshiba DP120F Service Manual page 634

1.5.5 SRAM TEST
This test conducts a read/write test on all the areas of the SRAM.
Use the [ ↑ ] or [ ↓ ] key to select the "05. SRAM TEST", and then press the [ENTER] key.
(1)
SRAM TEST
TESTING
<Remarks>
SRAM TEST
NG
ADDRESS=
<Remarks>
(2) When you complete the test, press the [STOP] key to return to the standby mode screen.
(3) Depending on the result of the test, replace the Main PBA referring to "Chapter 8: Re-
moval/Replacement/Adjustment" on page 8-46.
DP120F/DP125F Troubleshooting
On completing all the
addresses normally
If a memory error occurs, the address where the error occurred is dis-
played and the procedure is suspended. The test will resume upon press-
ing the [START] key.
YYYYYYH
The address assigned to each memory is as in the table below.
When an error occurs, refer to this table.
Address (H)
F00000 to F7FFFF
[MENU], [9], [4], [05]
SRAM TEST
OK
→
If no further errors are
found after resuming
→
IC No.
IC30, IC31
11-22
SRAM TEST
NG
COMPLETED
Installed PBA
Main PBA
March 2000 © TOSHIBA TEC