Sanyo VPC-C4EX Service Manual

Also see for Xacti VPC-C4: Instruction manual

Contents

– 7 –41~44 SCAN OUT3~0 OSee next page →1-5. SY1 CIRCUIT DESCRIPTION1. Configuration and FunctionsFor the overall configuration of the SY1 circuit, refer to the block diagram. The SY1 circuit centers around a 8-bit microprocessor(IC301), and controls camera system condition (mode).The 8-bit microprocessor handles the following functions.1. Operation key input, 2. Clock control and backup, 3. Power ON/OFF, 4. Storobe charge control, 5. Signal input and output forzoom and lens control.Pin Signal123456789111213141516171819202426272829303132333435363739453840AVREFAVSSICVDDREGCVSSXINXOUTRESETXCOUTCLKSEL0BAT_OFFIR_INUSB_DETUSB_TRIGSREQBACKUP_CTLCHG_CNTFLMD1NCPRG SIPRG SCKMAIN RESETDETCTVF. LED (R)VF. LED (G)VssEVDDP ONPA ONSCKSISOCHG ONFLMD0BOOT_COMREQI/OI-----I-IOOIIIII/OOO-I/OIOOIOO--OOOIOOOI/OOutlineAnalog standard voltage input terminalGNDPower for program writingVDDRegulator output stability capacity connectionGNDMain clock oscillation terminal (4MHz)Reset inputClock oscillation terminalARM system clock ON/OFFBattery off detection signal inputInfrared remote control reception data (asynchronous)USB power detection terminal (↓detection)Cradle TRIG sw (↑detection)Transmission clock for communication (SY-ASIC)Backup battery charge control (L=charge)Cradle charge permission signal (H=permission)Hot line 2Flash for serial data inputFlash for serial clock outputSystem reset (MRST)Low can be detected constantly.VF. LED (RED) (L=lighting)VF. LED (GREEN) (L=lighting)GNDVDDD/D converter (digital system) ON/OFF signalD/D converter (analog system) ON/OFF signalSerial clock outputSerial data inputSerial data outputStrobo charge controlFlash writing control 0Key matrix outputBOOT/command requestFlash writing control 110 XCIN I Clock oscillation terminal (32.768 kHz)21 SCAN IN6 I Keyscan input 622 LCD ON O D/D converter (LCD system) ON/OFF signal 123 BLON O LCD backlight ON signal (H=lighting)Main clock oscillation terminal25 PRG SO O Flash for serial data output