Sanyo VPC-J1 Service Manual

Also see for Xacti VPC-J1: Instruction manual

Contents

– 7 –Fig. 5-1 Internal Bus Communication SystemTable 5-2. Key Operation2. Internal Communication BusThe SYA block carries out overall control of camera operation by detecting the input from the keyboard and the condition of thecamera circuits. The 8-bit microprocessor reads the signals from each sensor element as input data and outputs this data to thecamera circuits (ASIC) or to the LCD display device as operation mode setting data. Fig. 5-1 shows the internal communicationbetween the 8-bit microprocessor, ASIC and SPARC lite circuits.3. Key OperaitonFor details of the key operation, refer to the instruction manual.Table 5-1. 8-bit Microprocessor Port Specification6364ZTEST/ASIC RESETOOASIC reset signal L : RESETCPU reset singal L : RESET616251I-52 NOT USED -USB connector detection L : USB detecion57PLLEN O PLL reset signal L : RESET/USBCLKSEL 1 O CPU clock swtich control5960/CARD I SD card insertion detection L : InsertionBR CLOSE O Lens barrier close control H : CloseCLKSEL 0 O CPU clock ON/OFF control H : ON49 AV JACK I AV jack connection detection H : AV jack detection50 OPEN I Lens barrier open detection switch input53 LCD ON2 O LCD power ON/OFF control 254 /SCAN_IN 4 I Key scan input 455 /SCAN_IN 5 I Key scan input 556 /BACKUP_CNT O Backup battery charge control L : Charge ON58 BR_OPEN O Lens barrier open control H : Open120 1 2 3SCANOUTSCANIN← LEFTRECFLASHPC CAM→ RIGHTSETPLAY↓ DOWNREC (VF)4WIDE1st SHUTTER↑ UPMENUMODEOPTION5TELE2nd SHUTTERCOM6TESTPOWER OFF08-bitMicroprocessor ASICS. REQASIC SOASIC SIASIC SCKASIC RESETPLLENCLKSEL0CLKSEL1ZTEST48 BOOT I/O Compulsion boot control L : DC JACK detection