Sharp UX-4000M Service Manual - Page 92

UX-4000MU FO-2950MU/C FM214 (IC8) Terminal description PIN I/O Signal Function 108 OB IRQ1# Interrupt request 109 OC GPO2 General purpose output 110 OC GPO1 General purpose output 111 OC GPO0 GPO0 (IA reset) 112 PWR VDD5 3.3V DSP Digital Power 113 PWR VGG 5V DSP Digital 114 GND DGND5 DSP Digital Ground 115 IB RESET# External reset 116 I XTALI Crystal in 117 O XTALO Crystal out 118 MI RESERVED Modem Interconnect 119 OB XCLK X clock output 120 IA GPI1 General purpose input 121 OA IRQ2# Interrupt request 122 MI SR3IN Modem Interconnect 123 MI RESERVED Modem Interconnect 124 MI RESERVED Modem Interconnect 125 GND DGND6 DSP Digital Ground 126 PWR DVAA 3.3V DSP analog power 127 GND AGND5 DSP Analog Ground 128 MI RESERVED Modem Interconnect Note: I/O: MI = Modem interconnect IA, IB = Digital input OA, OB, OC = Digital output I = Analog input O = Analog output -P signal: Primary IA _S signal: Secondary IA Reserved = Not connect o. Adjustment of voice/ringer volume The voice/ringer volume can be adjusted by using the panel buttons "UP" and "DOWN". • The ringer volume can be adjusted in the Stand-by mode by pressing the UP/DOWN button. • The reception level can be adjusted by pressing the UP/DOWN button when the handset is located in the off-hook state. • The speaker volume can be adjusted by using the speaker key. m. Image signal process block CIS VIDEO SIGNAL CLOCK VREF+ VREF- LC82103 (IC6) Fig. 22 LOCAL BUS ASIC The CIS is driven by the LSI (LC82103), and the output video signal from the CIS in input into the LC82103. The ADC and buffer are provided in the LC82103, and the digital image processing is performed. n. Speaker amplifier The speaker amplifier monitors the line under the on-hook mode, outputs the buzzer sound generated from the SH7041, ringer sound, DTMF generated from the modem, and line sound. 5 - 20 manuals4you.com