III –
18
3.2
Main PCB
The main PCB, which is the nucleus controlling the entire operation of the equipment, con-
sists of a FAX engine (ASIC), memories, MODEM, motor drive circuitry, sensor detection cir-
cuitry, and analog circuits for scanning, recording, and power transmission shifting.
E
2
PROM:
Electrically Erasable Programmable Read-only Memory
PSRAM:
Pseudo Static Random Access Memory
ROM
E
2
PROM
PSRAM
FAX
engine
(ASIC)
Motor
driver
Sensors
Automatic
cutter
Speaker
Power
supply
NCU
Recording head
Control panel
Motor
CIS
Block Diagram of Main PCB
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: ......