Sya Circuit Description - Olympus Camedia C-7070 Repair Manual

[5] SYA CIRCUIT DESCRIPTION

1. Configuration and Functions
For the overall configuration of the SYA block diagram, refer to the block diagram. The configuration of the SYA block
centers around a 8-bit microprocessor (IC301). The 8-bit microprocessor handles the following functions.
1. Operation key input, 2. Mode LCD display, 3. Clock control, 4. Power ON/OFF, 5. Storobe charge control
Signal
Pin
1 DC IN
PAF THERM
2
CHG VOL
3
4
BATTERY
5 AVREF
6 BAT OFF
JOG A
7
8 SREQ
9 IR IN
10 ZPULSE
11
EXSTB
12
SCAN IN 7
13
NOT USED
14
XCOUT
15
16 XCIN
17
VSS1
18 VDD
19 XOUT
20 XIN
21
RESET
22 USB CONNECT
23 LCD ON
24 CHG ON
25 BL ON
26, 27 CAPH, L
28~30 VLC 0~2
31~34 COM 0~3
35
SCOM0
36~54 S0~S18
55 S19/FLMD0
56~65
S20~S29
66 CARD SW
67 AV JACK
68 JOG B
69 FLMD0_SY
70
COMREQ
71
MAIN RESET
72~75
SCAN OUT 0~3
76 VSS0
77 VDD0
78
SELF_LED
H. DESCRIPTION OF MECHANISM
I/O
I
I
I
I
I
I
I
I
I
I
I
I
-
IC -
O
I
-
-
O
I
I
I
O
O
O
-
-
O
-
O
O
O
I
-
I
O
I
I
O
-
-
O
DC power detection terminal
Passive sensor temperature detection (analog input)
Strobe charge voltage input (analog input)
Battery voltage input (analog input)
A/D converter standard voltage input terminal
Battery off detection signal
JOG dial A detection signal
Serial communication requirement signal
Remote control detection signal
Zoom motor drive pulse count
External strobe communication detection signal
Keymatrix input
-
8-bit micro processor rewrite impressed voltage
Sub clock oscillation terminal (32.768 kHz)
Sub clock oscillation terminal
GND
Power supply terminal
Main clock oscillation terminal (4 MHz)
Main clock oscillation terminal
Reset input
USB cable connection detection signal
DC/DC converter (LCD system) ON/OFF signal
Strobe charge control
LCD backlight ON/OFF signal
LCD drive voltage step-up capacitor connection terminal
LCD drive voltage terminal (external capacitor connection)
LCD common ouput 1~4
-
LCD segment output 0~18
LCD segment output (combined with power for program writing)
LCD segment output 20~29
CARD lid switch detection
AV JACK insertion detection
Jog dial B detection signal
Microprocessor card rewriting port
ASIC serial communication requirement
System reset (MRST)
Key matrix output
GND
VDD
SELF LED
H-8
C-7070 Wide Zoom
Outline
L : Connection
L : Battery OFF
L : Lighting
L : Requirement
Ver. 1