Service Manual
Page 33
o I Main PCB Circuit Diagram 1/5 C) FAX engine (ASIC) which integrates a CPU, digital portion of MODEM and gate array for managing the I > • • T.. • 1 • T::.. •1.s •• 1.415.1 ; tions. ® ...; Connector for the modular PCB Co Connector for the hook switch PCB C) Backup circuit for the MODEM. ® Reset IC which turns on at the powering-on sequence and at any of the reset opera- ACIMIt2. a fe$, I /Os, memories, and drivers. ® XTI, oscillator for the CPU. ® XT3, oscillator for the...
o I Main PCB Circuit Diagram 1/5 C) FAX engine (ASIC) which integrates a CPU, digital portion of MODEM and gate array for managing the I > • • T.. • 1 • T::.. •1.s •• 1.415.1 ; tions. ® ...; Connector for the modular PCB Co Connector for the hook switch PCB C) Backup circuit for the MODEM. ® Reset IC which turns on at the powering-on sequence and at any of the reset opera- ACIMIt2. a fe$, I /Os, memories, and drivers. ® XTI, oscillator for the CPU. ® XT3, oscillator for the...
Service Manual
Page 41
Main PCB i Control Panel PCB FAX Engine SIDN SDOUT PCLK +5V RESET > Backup Circuit }Serial > Communications > Ports Gate Array I/O Ports +5V POWER LCD ',.. > Panel FPC i- (Key Matrix) Reset Circuit RESET -. > LEDs (Not provided on the FAX1170/1270/1010/1020/MFC1770), which integrates the key matrix having rubber keytops. The panel FPC... The control panel PCB and the main PCB communicate with each other by the gate array according to commands issued from the FAX engine on the main PCB. The control panel unit consists of a gate array, an LCD and LEDs (not provided on the FAX1170...
Main PCB i Control Panel PCB FAX Engine SIDN SDOUT PCLK +5V RESET > Backup Circuit }Serial > Communications > Ports Gate Array I/O Ports +5V POWER LCD ',.. > Panel FPC i- (Key Matrix) Reset Circuit RESET -. > LEDs (Not provided on the FAX1170/1270/1010/1020/MFC1770), which integrates the key matrix having rubber keytops. The panel FPC... The control panel PCB and the main PCB communicate with each other by the gate array according to commands issued from the FAX engine on the main PCB. The control panel unit consists of a gate array, an LCD and LEDs (not provided on the FAX1170...
Service Manual
Page 174
3 J 0 25V R V T .T 0 0.99 2TO 0 s5v -2 CCIO• OROV as 12E .11.O 12E '' 2201252 < 304 1 OND *2803052 os 'Eve toe AVI D 12E 010 KRCIO7O ROV 11103 1K 23K1399 RSV *2803062 0.99 22K RSV ICI,. 'SD 0.100 2.2K OPUISA 150 0.,01 1OK ROV 0130 -1- 00104 ROI/ (Mounted on the FAX1170/1270/ I MFC1770/1870MC) Mounted on the FAX1570MCMFC1O70MC) 0 D 1 Electronic devices marked with an asterisk (*) are not mounted. 2 1 •SV 120 ' ,DEN
3 J 0 25V R V T .T 0 0.99 2TO 0 s5v -2 CCIO• OROV as 12E .11.O 12E '' 2201252 < 304 1 OND *2803052 os 'Eve toe AVI D 12E 010 KRCIO7O ROV 11103 1K 23K1399 RSV *2803062 0.99 22K RSV ICI,. 'SD 0.100 2.2K OPUISA 150 0.,01 1OK ROV 0130 -1- 00104 ROI/ (Mounted on the FAX1170/1270/ I MFC1770/1870MC) Mounted on the FAX1570MCMFC1O70MC) 0 D 1 Electronic devices marked with an asterisk (*) are not mounted. 2 1 •SV 120 ' ,DEN