User Manual

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Pin
Signal
1
2~3
4~7
9
10
11
12
20
21
22
23~25
27
28~30
31
32~51
52~56
73
74
75
76
77
78
79
80
CHG VOL
GND
SCAN IN 0~3
AVREF
TARRY LED
GND
VSS
NOT USED
AVREF ON
GND
CHG ON
COM1~COM3
NOT USED
BIAS
VLC0~VLC2
VSS
S1~S20
NOT USED
GND
SO
SCK
IC
XOUT
XIN
I/O
I
-
I
I
O
-
-
-
O
-
O
O
-
-
-
-
O
-
-
I
I
O
O
-
O
I
Outline
Strobe charge voltage input (analog input)
GND
A/D converter standard voltage input terminal
Remote control LED L : LED light
GND
GND
-
A/D standard voltage ON/OFF signal L : ON
GND
Flash charge ON/OFF signal H : ON
Mode LCD common signal output
-
LCD motor voltage supply terminal
LCD motor voltage terminal
GND
Mode LCD segment signal output
GND
Video output cable connection detection signal H : Connection
Serial communication data input (←ASIC)
Serial communication data output (→ASIC)
Serial communication clock output (→ASIC)
Connect to VSS
Main clock oscillation terminal (4 MHz)
Main clock oscillation terminal
-
3-6. SY1 CIRCUIT DESCRIPTION
1. Configuration and Functions
For the overall configuration of the SY1 circuit board, refer to the block diagram. The configuration of the SY1 circuit board
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
Key matrix input
SI
26
13~19
67 NOT USED - -
68 GND - GND
69 STROBE SW
I
Strobe pop up detection H : Pop up
8 AVDD
-
A/D converter analog power terminal
57~59
SCAN IN 4~6
I
Key matrix input
60 DC IN
I
DC adaptor insertion detection L : ON
61~63 NOT USED
-
-
64 WAKE UP
I Signal for detection of access condition to disc H : Rotation
65 NOT USED - -
66 MECHA SW
I
Detection of disc insertion & cover open/close L : Disc insertion and cover close
70 PA ON
O DC/DC converter (analog) ON/OFF signal H : ON
71 P ON
O DC/DC converter ON/OFF signal H : ON
72 MIC JACK
I
External microphone detection H : Insert microphone
See next page →
AV JACK
81
82
83
VDD
XCIN
-
I
O
Power supply terminal
Sub clock oscillation terminal (32.768 kHz)
Sub clock oscillation terminal
XCOUT