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App. 4-10
WSW07
(Dial tone setting 1)
Selector
No.
Function
Setting and Specifications
1
2
Dial tone frequency band control
No. 1 2
0 0
: Narrows by 10 Hz
0 1
: Initial
value
1 X
: Widens by 10 Hz
3
Line current detection
0: No
1: Yes
4
|
6
2nd dial tone detection level
(Z = 600
Ω
)
No. 4 5 6
0
0 0 : -21
dBm
0
0 1 : -24
dBm
0
1 0 : -27
dBm
0
1 1 : -30
dBm
1
0 0 : -33
dBm
1
0 1 : -36
dBm
1
1 0 : -39
dBm
1
1 1 : -42
dBm
7
Allowable instantaneous interrupt
during reception of 1st dial tone
0: 30 ms
1: 50 ms
8
Not used.
NOTE:
Selectors 1, 2, 4 through 7 are not applicable in those countries where no dial tone or line
current detection is supported, e.g., U.S.A.
NOTE:
Selector 3 is not applicable to those models having no loop current detection function.
Selectors 1 and 2: Dial tone frequency band control
These selectors set the frequency band for the 1st dial tone and busy tone (before dialing) to be
detected.
This setting is effective only when selectors 1 through 3 of WSW05 are set to "1,1,1."
Selector 3:
Line current detection
This selector determines whether or not the equipment should detect a line current before starting
dialing.
Selectors 4 through 6: 2nd dial tone detection level
These selectors set the detection level of the 2nd dial tone.
Selector 7:
Allowable instantaneous interrupt during reception of 1st dial tone
This selector sets the allowable instantaneous interrupt period that should be ignored during
reception of the 1st dial tone.
Содержание MFC-4820C
Страница 1: ...FACSIMILE EQUIPMENT SERVICE MANUAL MODEL MFC4820C MFC4420C ...
Страница 6: ...CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 13: ...CHAPTER 2 SPECIFICATIONS ...
Страница 19: ...2 5 2 1 4 Environmental Conditions ...
Страница 26: ...CHAPTER 3 SETTING UP OF THE MACHINE ...
Страница 29: ...3 2 3 2 UNPACKING THE MACHINE The equipment consists of the following major components ...
Страница 40: ...CHAPTER 4 THEORY OF OPERATION ...
Страница 76: ...CHAPTER 5 ROUTINE MAINTENANCE ...
Страница 84: ...CHAPTER 6 DISASSEMBLY REASSEMBLY ...
Страница 114: ...6 29 6 1 11 Speaker 1 Pull the speaker and its spring out of the lower cover ...
Страница 136: ...CHAPTER 7 MAINTENANCE MODE ...
Страница 145: ...7 8 Scanning Compensation Data List ...
Страница 160: ...7 23 1st sheet 2nd sheet Vertical Alignment Check Patterns and Head Skew Check Pattern ...
Страница 162: ...7 25 Margin Check Patterns ...
Страница 170: ...CHAPTER 8 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 196: ...8 25 3 Pull up the jammed paper to remove it Jammped paper 4 Reinstall the paper tray Paper tray ...
Страница 197: ...MFC4820C MFC4420C Appendix 1 Serial No Descriptions ...
Страница 204: ...App 2 3 Select the folder where the Downloader driver is located then click OK Click Next Click Yes ...
Страница 205: ...App 2 4 Click Finish to return to Windows ...
Страница 209: ...MFC4820C MFC4420C Appendix 3 EEPROM Customizing Codes ...
Страница 212: ...MFC4820C MFC4420C Appendix 4 Firmware Switches WSW ...
Страница 252: ...App 4 40 WSW48 to WSW50 Selector No Function Setting and Specifications 1 8 Not used ...
Страница 253: ...MFC4820C MFC4420C Appendix 5 Re Packing Instructions ...
Страница 255: ...App 5 2 2 Place the machine in the original box with the original packaging material ...
Страница 256: ...MFC4820C MFC4420C Appendix 6 Wiring Diagram ...
Страница 259: ...A Main PCB 1 5 ...
Страница 260: ...A Main PCB 2 5 ...
Страница 261: ...A Main PCB 3 5 ...
Страница 262: ...A Main PCB 4 5 ...
Страница 263: ...A Main PCB 5 5 ...
Страница 264: ...B Driver PCB ...
Страница 265: ...C NCU PCB ...
Страница 266: ...D Control Panel PCB ...
Страница 267: ...E Power Supply PCB ...
Страница 268: ...Feb 03 SM FAX016 8CA602 Printed in Japan ...