Panasonic CQ-RXBT490U Service Manual page 7

Pin No. Port
92 X16OUT 16.9344MHz oscillator connec-
tion.
93 X16IN 16.9344MHz oscillator connec-
tion.
94 XVDD2 Oscillator power supply.
95 LRVDD Audio LPF power supply.
96 LCHO Audio Lch data output.
97 LRREF Reference voltage for audio LPF.
98 RCHO Audio Rch data output.
99 LRVSS Audio LPF ground.
100 SLCO Slice Level control output.
Note 1 :
Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10MΩ).
4.1.2. Display Block
IC901:C0HBA0000324
Pin. PORT
No.
1 P1/S1 General-purpose output.
2 P2/S2 General-purpose output.
3 P3/S3 General-purpose output.
4 P4/S4 Not connected.
5 P5/S5 Segment outputs.
6 P6/S6 Segment outputs.
7 P7/S7 Segment outputs.
8 P8/S8 Segment outputs.
9 S9 Segment outputs.
10 S10 Segment outputs.
11 S11 Segment outputs.
12 S12 Segment outputs.
13 S13 Segment outputs.
14 S14 Segment outputs.
15 S15 Segment outputs.
16 S16 Segment outputs.
17 S17 Segment outputs.
18 S18 Segment outputs.
19 S19 Segment outputs.
20 S20 Segment outputs.
21 S21 Segment outputs.
22 S22 Segment outputs.
23 S23 Segment outputs.
24 S24 Segment outputs.
25 S25 Segment outputs.
26 S26 Segment outputs.
27 S27 Segment outputs.
28 S28 Segment outputs.
29 S29 Segment outputs.
30 S30 Segment outputs.
31 S31 Segment outputs.
32 S32 Segment outputs.
33 S33 Segment outputs.
34 S34 Segment outputs.
35 S35 Segment outputs.
36 S36 Segment outputs.
37 S37 Segment outputs.
38 S38 Segment outputs.
39 S39 Segment outputs.
40 S40 Segment outputs.
41 S41 Segment outputs.
42 S42 Segment outputs.
43 S43 Segment outputs.
44 S44 Segment outputs.
45 S45 Segment outputs.
46 S46 Segment outputs.
47 S47 Segment outputs.
48 S48 Segment outputs.
49 S49 Segment outputs.
50 S50 Segment outputs.
51 S51 Segment outputs.
52 S52 Segment outputs.
53 S53 Segment outputs.
Description I/O
O
O
-
-
AO
AO
AO
-
AO
Description I/O
O
O
O
-
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
CD(V) Pin. PORT
No.
1.46
54 S54
1.51 55 S55
56 S56
3.09
57 S57
3.09
58 S58
1.56
59 S59
1.56
60 S60
1.56
61 S61
0
62 S62
1.61
63 S63
64 S64
65 S65
66 S66
67 S67
68 S68
69 S69
70 S70
71 S71
72 S72
(V)
73 S73
74 COM4/S74
4.80
75 COM3
4.80
76 COM2
4.80
77 COM1
4.82
78 S75/KS1
2.42
79 S76/KS2
2.42
80 KS3
2.42
81 KS4
2.42
82 KS5
2.42
83 KS6
2.42
84 KI1
2.42
85 KI2
2.42
86 KI3
2.42
87 KI4
2.42
88 KI5
2.42
89 S77/P9
2.42
90 VDD
2.42
91 VDD1
2.42
2.42
92 VDD2
2.42
2.42
93 VSS
2.42
94 TEST
2.42
95 OSC
2.42
96 RES
2.42
97 DO
2.42
98 CE
2.42
99 CL
2.42
100 DI
2.42
2.42
4.1.3. BT/USB/AUX Block
2.42
IC100:YEAMNF230122
2.42
2.42
2.42
Pin. PORT
2.42
No.
2.42
1 UART_CTS
2.42
2 UART_RTS
2.42
3 UART_RX
2.42
4 UART_TX
2.42
5 VREGIN_L
2.42
2.42
2.42
6 VDD_MEM
2.42
7 VDD_PIO
2.42
8 GND
2.42
9 RESET#
2.42
2.42 10 PIO[10]
2.42 11 PIO[9]
2.42 12 PIO[15]
2.42 13 PIO[11]
2.42 14 PIO[12]
2.42 15 PIO[13]
7
Description
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Segment outputs.
Not connected.
Not connected.
Not connected.
Common driver outputs.
Common driver outputs.
Common driver outputs.
Common driver outputs.
Not connected.
Not connected.
Key scan outputs.
Key scan outputs.
Key scan outputs.
Key scan outputs.
Key scan inputs.
Key scan inputs.
Key scan inputs.
Key scan inputs.
Key scan inputs.
General-purpose output port.
Power supply connections.
LCD drive 2/3 biasvoltage supply
pin.
LCD drive 1/3 biasvoltage supply
pin.
Ground.
This pin must be connected to
ground.
Oscillator circuit port.
Reset signal input.
Output data.
Chip enable.
Synchronization clock.
Transfer data.
Description
UART clear to send active low.
UART request to send active low.
UART data input.
UART data output.
Input to internal low-voltage linear
regulator for non-audio core
circuity.(1.8V-2.7V)
VDD
VDD
Ground
CMOS input with weak internal pull-
up.
Programmable input/output line.
Programmable input/output line.
Programmable input/output line.
Programmable input/output line.
Programmable input/output line.
Programmable input/output line.
I/O (V)
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
O 2.42
2.42
-
2.42
-
2.42
-
O 2.42
O 2.42
O 2.42
O 2.42
4.82
-
4.82
-
O 4.82
O 4.82
O 4.82
O 4.82
I 0
I 0
I 0
I 0
I 0
O 0
- 4.82
- 3.22
- 1.63
- 0
- 0
I/O 3.53
I 4.82
O 4.76
I 0
I 4.60
I 4.55
I/O (V)
I 0
O 0
I 0
O 3.06
I 1.83
VDD 3.05
VDD 3.05
GND 0
I 3.58
O 0
O 0
O 0
O 0
O 0
O 0