Sanyo VPC-HD700 Service Manual page 9

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.
Signal
Pin
1 SCK
#CARD
2
#BACKUP CTL
3
4
CHG_CNT
5 HOT LINE
6 RED_LED
HSCON
7
NOT USED
8
9 VDD2
10
VSS2
ST_CHG_ON
11
12 IR_ON
13
PON2
14 P ON
15
BL ON
16 PLLEN
17 #USB_DET
18 MAIN RESET
19 GREEN_LED
20 UTX
21 PANEL_OPEN
22 DC IN1
23 KEY Ist
24 KEY 2nd
25 #TH_ON
26 BATCHGERR
27 #CHG DONE
28
BATCHGCNT
29 SW3.2ON
30~33 SCAN IN5~2
34 DC_IN2
35, 36 SCAN IN1, 0
37 VSS3
38 VDD3
39
RDSEL
40 (DBGP1/CLK)
41 (DBGP0/DATA0)
42 DC_IN
43~46 SCAN OUT3~0
47 ZBOOT
48 ZUSB_TRIG
49
AV_JACK
I/O
O Serial data clock output
SD card detection (L= card)
I
O Backup battery charge control
O Camera battery charge permission
Hot line request from ASIC
I
O Switch unit LED (red) (H= lighting)
Gyro high speed charge
O
-
-
Power Power
-
GND
O
Strobo condensor charge control (H= charge)
O Remote control module power ON/OFF control
O D/D converter (1.0 V) ON/OFF control (H= ON)
O D/D converter (1.8 V/3.3 V) ON/OFF control (H= ON)
O
LCD backlight power start-up signal
ASIC PLLEN start-up
O
USB power detection terminal (L= detection)
I
System reset output
O
Switch unit LED (green) (H= lighting)
O
System reservation terminal (on-tip debugger)
I
Panel open detection (MR sensor)
I
Cradle feed ON
O
I S1 key input
S2 key input
I
O Battery T terminal measurement power ON/OFF control
I Battery charge error input
Main condensor charge voltage detection
I
BAT CHG permission signal
O
O SW 3.2 V power (L= ON)
I Keyscan input 5~2
Camera jack power detection
I
Keyscan input 1, 0
I
GND
-
Power
Power
I System reservation terminal (on-tip debugger select terminal)
I System reservation terminal (on-tip debugger)
System reservation terminal (on-tip debugger)
I
I Cradle power detection
Keyscan output 3~0
O
ZBOOT output
O
USB triger from cradle (ternary detection)
I
AV jack insertion detection (AD) (H= open/ M=composite/ L=D4 or component)
I
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