Panasonic CQ-C7703N - Page 10

10.2. Main Block [CQ-C7303N]
IC601 : C2CBKG000037
Pin
No.
Port Description I/O (V)
FM AM CD
1 PANEL
OPEN
Panel open
detection
I 0 5.2 5.2
2 PANEL
CLOSE
Panel close
detection
I 0 0 5.2
3 SUBM CNT 3.3V power control
for Display
O 5.0 - -
4 BATT Battery power
check
I 4.8 5.0 5.0
5 ACC Acc. power check I 4.8 5.0 5.0
6 SDA Serial data for
electronic volume
I/O 4.9 4.9 4.9
7 SCLK Serial clock for
electronic volume
O 4.9 4.9 4.9
8 CD MUTE Signal mute from
CD deck
I 5.0 5.0 5.0
9 Vss GND - 0 0 0
10 ST FM stereo detection I 5.1 5.2 5.2
11 PLL DI Serial data to PLL O 0.6 0 0
12 PLL DO Serial data from PLL I 5.2 5.2 5.2
13 PLL CLK Serial clock for PLL O 4.9 4.9 4.9
14 PLL CE Chip enable for PLL O 0 0 0
15 CD RESET Reset for CD deck O 4.9 4.9 4.9
16 SUB SI Serial data to
Display CPU
O 0.6 0.6 0.8
17 CD IN Disc-in detection I 5.0 5.0 5.0
18 SUB SO Serial data from
Display CPU
I 4.4 4.4 4.4
19 UP SO XM SO/UP SO Serial
data from Changer
I 1.6 1.6 1.6
20 UP CLK Serial clock for
Changer or Flash
writer
I 4.9 4.9 4.9
21 Vdd +5V power supply - 4.9 4.9 4.9
22 XM SI (MO)
/ UP SI
Serial data to
Satellite or Flash
writer
O 0 0 0
23 CD SI Serial data to CD
deck
O 0 0 0
24 CD SCLK Serial clock for CD
deck
I/O 0 0.4 0
25
CONDENSOR
Capacitor
connection for
power
- 3.3 3.3 3.3
10