Test Mode (13) - Toshiba e-studio166 Service Handbook

2.2.9

Test Mode (13)

The operation of the following items can be checked in the test mode (13).
Code Item
01 SRAM test
02 DRAM test
03 Image processing
RAM test
04 CODEC test
05 ADF test
06 Button test
07 LED test
08 FROM test
<Key used in operation>
[1][3]
"Ch"
[Power ON]
© 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved
The read/write test is performed throughout the image memory. The test checks
the whole SRAM. When an error is found, the address of the erroneous portion
is displayed and the test is stopped.
The read/write test is performed on the DRAM. When an error is found, the
address of the erroneous portion is displayed and the test is stopped.
The read/write test is performed on the RAM used for the image processing.
The hardware test is performed on the CODEC block inside the SoC. The test
encodes data of 10 lines using the MH coding, decodes it and compares it with
the original data.
Paper feeding, transporting and exiting are performed for originals. The number
of the original sheets which exited is counted and displayed.
The buttons on the control panel are tested if they are operated properly.
All LEDs on the control panel are lit.
The FROM is tested to see if it functions correctly. The checksum of the program
data and function data stored in FROM is calculated and compared with the one
reported in advance.
Code
[Digital Key]
ON
2 - 61
07/11
Content
Code
[START]
(blinks)
Result [CLEAR/STOP]
ERROR CODE AND SELF-DIAGNOSTIC MODE
[Power]
OFF/ON
e-STUDIO163/166/203/206
2