Service Manual
Page 95
... CPU INTERFACE 6 CIS control and image processing FO-4400U FO-CS1 The block has the following function. The block has the controller of SDRAM and the arbiter of a NOR flash memory. F Scanner motor control The block has the following functions. The One, the encoding from analogue to the code data... is used as Page memory. That is, converts the image data for decodes. That is, controls the PWM current control type stepping motor driver that are generated by main CPU (SH-3), and then wait control and access control to the peripheral devices. 2 NOR type flash memory interface...
... CPU INTERFACE 6 CIS control and image processing FO-4400U FO-CS1 The block has the following function. The block has the controller of SDRAM and the arbiter of a NOR flash memory. F Scanner motor control The block has the following functions. The One, the encoding from analogue to the code data... is used as Page memory. That is, converts the image data for decodes. That is, controls the PWM current control type stepping motor driver that are generated by main CPU (SH-3), and then wait control and access control to the peripheral devices. 2 NOR type flash memory interface...
Service Manual
Page 104
... 2) Mechanical control block The mechanical control block is mainly composed of MAIN ASIC to the motor driver (IC3). (b) Verification stamp and LED lamp control On/off of the end verification and LED ...composed of the remaining areas of the image data decoded by CODEC function in MAIN ASIC. FO-4400U FO-CS1 (4) Scanner control block 1) Image signal process block The CIS is driven by the ...pin-54, TSOP (64 Mbit SDRAM) The page memory block is composed of one page of IC5 and can be stored. ONE + SHOT ONE SHOT + - The ADC and buffer are contracted by CODEC function in MAIN...
... 2) Mechanical control block The mechanical control block is mainly composed of MAIN ASIC to the motor driver (IC3). (b) Verification stamp and LED lamp control On/off of the end verification and LED ...composed of the remaining areas of the image data decoded by CODEC function in MAIN ASIC. FO-4400U FO-CS1 (4) Scanner control block 1) Image signal process block The CIS is driven by the ...pin-54, TSOP (64 Mbit SDRAM) The page memory block is composed of one page of IC5 and can be stored. ONE + SHOT ONE SHOT + - The ADC and buffer are contracted by CODEC function in MAIN...
Service Manual
Page 108
FO-4400U FO-CS1 [5] Circuit description of operation panel PWB 1. Block diagram SENB PAGE PLATE SW KEY MATRIX SEN[7.0] LD[7.0] LEDEN1 LEDEN2 RS R/W E LD[3.0] LS145 LD[5.0] HC174 LD[5.0] ...~LD3 (4 bits) and ten key detection is controlled through LD0~LD5 (6 bits) to provide LED lighting information. 2) COG(LCD) (LMG2025-TPR) The COG uses the one-chip LCD driver IC to display 20 digits x 2 lines. The LCD display density is controlled with an external resistor. 2.
FO-4400U FO-CS1 [5] Circuit description of operation panel PWB 1. Block diagram SENB PAGE PLATE SW KEY MATRIX SEN[7.0] LD[7.0] LEDEN1 LEDEN2 RS R/W E LD[3.0] LS145 LD[5.0] HC174 LD[5.0] ...~LD3 (4 bits) and ten key detection is controlled through LD0~LD5 (6 bits) to provide LED lighting information. 2) COG(LCD) (LMG2025-TPR) The COG uses the one-chip LCD driver IC to display 20 digits x 2 lines. The LCD display density is controlled with an external resistor. 2.