III –
31
1
2
3
4
6
7
8
9
:
5
NCU PCB Circuit Diagram (U.S.A. versions)
1
Surge absorber
2
Line relay (CML relay)
3
Line transformer
4
Circuit related to the line transformer
5
High-impedance transformer circuit
6
Calling signal detector
7
Loop current detector
8
Dial pulse generator
9
Telephone circuit
:
Reference voltage generation circuit for the operational amplifier in
4
3.3
NCU PCB
The NCU PCB switches the communications line to telephone or built-in MODEM, under the
control of the main PCB.
FAX-170/190/510/HOME FAX
Содержание FAX-270MC
Страница 4: ...CHAPTER I GENERAL DESCRIPTION ...
Страница 11: ...CHAPTER II INSTALLATION ...
Страница 12: ...CHAPTER III THEORY OF OPERATION ...
Страница 49: ...CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 86: ...IV 36 4 Cutter unit Cutter unit A A A A ...
Страница 87: ...CHAPTER V MAINTENANCE MODE ...
Страница 140: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Страница 157: ...March 98 5X1S112 Printed in Japan ...
Страница 173: ...D POWER SUPPLY 100 120 V U S A CANADA ...
Страница 174: ...POWER SUPPLY 200 240 V EUROPE SOUTH AMERICA D ...
Страница 175: ...POWER SUPPLY 200 240 V GULF ASIA CHINA D ...
Страница 192: ...D POWER SUPPLY 100 120 V U S A CANADA ...
Страница 193: ...POWER SUPPLY 200 240 V EUROPE SOUTH AMERICA D ...
Страница 194: ...POWER SUPPLY 200 240 V GULF ASIA CHINA D ...
Страница 195: ...FACSIMILE EQUIPMENT PARTS REFERENCE LIST MODEL FAX170 190 190 Plus 195 ...
Страница 198: ......
Страница 203: ......
Страница 206: ...Remarks 8 8 8 8 8 8 9 9 8 8 8 8 8 8 0 1 0 1 Brother Technical Information FAX98250 4 ...
Страница 208: ... 8 01 8 01 8 8 8 8 0 1 0 1 8 8 8 8 Brother Technical Information FAX99102 6 ...
Страница 220: ......