Sanyo VPC-CG10BK Service Manual

Contents

- 8 -See next page1-5. SYA CIRCUIT DESCRIPTION1. Configuration and FunctionsFor the overall configuration of the SYA block, refer to the block diagram. The SYA block 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 controlPin SignalASIC_SCKPON2NOT USEDPOW_TESTHOT LINETESTNOT USEDLCDPWMVDD2ST_CHGZCHGDONEONENAND RESETZBACKUPCTLKEY_PLAYGREEN_LEDMRSTUTXNOT_USEDKEY_VRECKEY_POWERZBOOT_COMREQKEY_WIDEKEY_TELNOT USEDVSS3VDD3RDSELCLK (SFW)DATA0 (SFW)P ONI/O OutlineSerial data clock outputPower test mode (L= starting up test mode)Hot line request from ASICTest mode terminal (L= starting up test mode)--Strobe charge control (H= charge)Main condensor charge voltage detectionOneNAND flash reset (L= reset)Backup circuit (L=ON)Key detection PLAY (L= detection)ASIC reset (L=reset)Debugger CNKey detection VREC (L= detection)Key detection POWER (L= detection)ZBOOT output and COMREQ input (L=BOOT)Key detection WIDE (L= detection)Key detection TEL (L= detection)---Debugger terminalDebugger terminalDebugger terminalD/D converter 1.2 V/3 V ON/OFF signal (H= ON)-VSS2 -MR Panel open/close detection (H= panel open)KEY_MENU Key detection MENU (L= detection)LCD backlight brightness controlKEY_1st Key detection 1st SHUTTER (L= detection)KEY_SET Key detection SET (L= detection)KEY_UP Key detection UP (L= detection)KEY_DOWN Key detection DOWN (L= detection)KEY_LEFT Key detection LEFT (L= detection)KEY_RIGHT Key detection RIGHT (L= detection)NOT USED -SW3.2ON SW 3.2 power ON/OFF signal (L= ON)OO-III-O--OIOOIOOIO-IIIIII/OIIIIIII------O-O123456789101112131415161718192021222324252627282930313233343536373839404142D/D converter 1.8 V ON/OFF signal (H= ON)-Green LED (H= lighting)RED_LED Red LED (H= lighting)