AR-203 (serv.man5). AR203 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 112

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AR-203E/5420/M200/M201  SIMULATION, TROUBLE CODES  10 - 39
66
33
Signal detection check 
(Executable only when the 
FAX is installed.)
[Function]
Use to check the signal detection.
[Operation]
34
Communication time 
measurement (Executable 
only when the FAX is 
installed.)
[Function]
Use to measurement the communication time.
[Operation]
37
Speaker sound volume 
setting (Executable only 
when the FAX is installed.)
[Function]
Use to set the speaker sound volume.
1: NO SOUND
2: LOW
3: MID
4: HIGH
[Operation]
Main 
code
Sub 
code
Contents
Details of function/operation
1) Initial display
When a signal is detected, the display is changed from NONE to the following.
CI/CNG/CED/BT/DT/Flag/SDT/DTMF
∗ [Clear] key: FAX control is terminated.
CHECKING        NONE
PRESS CLEAR TO STOP
1) Initial display
"xx:xx:xx:xxx" indicates o'clock, minute, second, millisecond.
∗ [Clear] key: FAX control is terminated.
COMM. TIME
xx:xx:xx:xxx msec
1) Initial display
2) [
] [
] key or after 2sec
Every time when [
] key is pressed, the second line is changed in the sequence of 1 
→ 2
→ 3 → 4 → 1.
When [
] key is pressed, the sequence is reversed.
∗ [Clear] key: FAX control is terminated.
3) [OK]/[ENTER] key
xxx: Set content
After 2sec, FAX control is terminated.
SELECT SPEEKER VOL.
PRESS 
←, →
SELECT (1-4)
1:NO SOUND
SELECT (1-4)
2:LOW
.....
STORED
xxx
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