Pressed - Sharp ER-A460 Service Manual

[10] Display test-2
1 Key operation
116 → TL
Functional description
2
The display CGs in CKDC6 are checked. The 256 CGs are
grouped into 32 blocks and each 8 characters is displayed on the
dot display.
The check start with CG code 00H - 07H, and the following blocks
are sequentially displayed when any key is pressed.
ABCDEFGH
DOT DISPLAY:
1 2 3 4 5 6 7 8 9 0
7-SEGMENT DISPLAY:
è : CG display position
3 Check the following items.
1. Check that the display is normal.
2. Check that there is no blur, defects, and unevenness.
4 Test termination
To terminate the test, set the mode key to any mode other than
SRV mode.
Test termination print
[11] I/R interface test
For I/R communication test, A460 or A470 is used as the checker.
Machine to be tested
ASK communication
ASK reception wait
ASK reception
IRDA transmission
IRDA reception wait
IRDA reception
1 Key operation
Perform key operation of 117 → TL to set the checker side to
the reception wait state.
On the machine to be tested, perform the following key operation.
118 → TL
S R V
116
Checker
ASK reception wait
ASK data
ASK reception
ASK transmission
ASK data
IRDA reception wait
IRDA data
IRDA reception
IRDA transmission
IRDA data
2 Details of test
1) Machine to be tested
The following data are transmitted in the ASK format.
Transmission data (9600BPS)
DOT DISPLAY:
7-SEGMENT DISPLAY:
1') Checker
DOT DISPLAY:
7-SEGMENT DISPLAY:
After receiving the data, they are transmitted in the ASK for-
mat.
DOT DISPLAY:
7-SEGMENT DISPLAY:
2) Machine to be tested
DOT DISPLAY:
7-SEGMENT DISPLAY:
If received data are the same as the transmitted data, it is
normal.
Normal reception print
Abnormal reception print
After completion of printing, the following data are sent in the
IRDA format.
Transmission data (9600BPS)
DOT DISPLAY:
7-SEGMENT DISPLAY:
2') Checker
DOT DISPLAY:
7-SEGMENT DISPLAY:
After receiving the data, they are sent in the IRDA format.
DOT DISPLAY:
7-SEGMENT DISPLAY:
3) Machine to be tested
DOT DISPLAY:
7-SEGMENT DISPLAY:
If received data are the same as the transmitted data, it is
normal.
Normal reception print
Abnormal reception print
3 Check item
Check the print contents (both ASK OK and IRDA OK).
4 Test end
The end print is made and the test is automatically terminated.
– 35 –
00,11,22,33,44,55,66,77,88,
99,AA,BB,CC,DD,EE,FF
I / R S E N D S R V
I / R R C E V S R V
I / R S E N D S R V
I / R R C E V S R V
ASK OK
ASK NG
00,11,22,33,44,55,66,77,88,
99,AA,BB,CC,DD,EE,FF
I / R S E N D S R V
I / R R C E V S R V
I / R S E N D S R V
I / R R C E V S R V
IRDA OK
IRDA NG