Sanyo VPC-CG11EXG, Service Manual

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1-5. SYA CIRCUIT DESCRIPTION
1. Configuration and Functions
For 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 control
Pin Signal
ASIC_SCK
PON2
VBDET
PWR_TEST
NOT USED
TEST
TH_POWER
GREEN_LED
VDD2
ST_CHG
ZCHGDONE
ONENAND_RESET
ZBAUPCTL
KEY_PLAY
GREEN_LED
MRST
UTX
NOT_USED
KEY_VREC
KEY_POWER
ZCARD
KEY_WIDE
KEY_TELE
HDMI_HPD
VSS3
VDD3
RDSEL
CLK (SFW)
DATA0 (SFW)
PON
I/O Outline
Serial data clock output
Test mode terminal (L= starting up test mode)
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Test mode terminal (L= starting up test mode)
Power supply for thermistor pull-up resistor
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Strobe charge control (H= charge)
Strobe condensor charge completion detection (H L : charge completion)
OneNAND flash reset (L= reset)
Backup battery charge control (L=charge)
Key input PLAY (L= input)
System reset (MRST)
Debugger terminal
Key input VREC (L= input)
Key input POWER (L= input)
SD card detection (L=detection)
Key input WIDE (L= input)
Key input TELE (L= input)
HDMI_HPD detection (L=detection)
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Debugger terminal
Debugger terminal
Debugger terminal
D/D converter 1.2 V/3.3 V ON/OFF signal (H= ON)
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VSS2 -
MR LCD panel open/close detection (H= panel open)
KEY_MENU Key input MENU (L= input)
Green LED (L= lighting)
KEY_1ST Key input 1st SHUTTER (L= input)
KEY_SET Key input SET (L= input)
KEY_UP Key input UP (L= input)
KEY_DOWN Key input DOWN (L= input)
KEY_LEFT Key input LEFT (L= input)
KEY_RIGHT Key input RIGHT (L= input)
SDDET L output to ASIC by the ZCARD detection
SW3.2 SW 3.2 power (H= ON)
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D/D converter 1.8 V ON/OFF signal (H= ON)
H output to ASIC by the ZUSBDET detection
Green LED (L= lighting)
RED_LED Red LED (L= lighting)