Sony DPP-MS300E Service Manual page 55

IC1901 STA506A
1
2
SWITCH
3
4
SWITCH
5
6
SWITCH
7
8
SWITCH
9
10
– SW-40 Board –
IC1700 RTC-4543SBB-L2
NC
1
2
NC
CONTROL CIRCUIT
3
NC
VOLTAGE
DETECT
NC 4
FOE 5
CLOCK AND CALENDER
6
WR
DEVIDER
7
FSEL
OSC
CE 8
9
GND
IC1902 LM339NS-E20
1 OUT
2 OUT
VCC
2 IN–
2 IN+
1 IN–
1 IN+
18
NC
17 NC
I/O CONTROLLER
16
NC
15
NC
14 VCC
SHIFT REGISTER
13 NC
12 CLK
11
DATA
OUT PUT
10 FOUT
CONTROLLER
32.768kHz
5-58
1
2
3
4
5
6
7
14
3 OUT
13 4 OUT
2
GND
11
4 IN+
10 4 IN–
9 3 IN+
8 3 IN–