Panasonic CQ5302U - CAR AUDIO, Service Manual

Page: 6 / 25

IC601 : C2BBYY000199
Ref.
No.
Part
No.
Part Name &
Description I/O(V
)
FM AM WB CD
1 CH_STB CD Changer
Comunication Strobe
I 0 0 0 0
2 ROTARY2 Rotary encoder
Signal Input2(VOL
UP)
I 4.9 4.9 4.9 4.9
3 ROTARY1 Rotary encoder
Signal Input2(VOL
DOWN)
I 0 0 0 0
4 NC None I 0 0 0 0
5 NC None I 0 0 0 0
6 NC None I 0 0 0 0
7 NC None I 0 0 0 0
8 NC None I 0 0 0 0
9 ILL_PWR Illumination Power O 5.21 5.21 5.21 5.2
1
10 RFSET System Reset I 5.17 5.17 5.17 5.1
7
11 XT2 SubSystem Clock _ 2.7 2.7 2.7 2.7
12 XT1 SubSystem Clock _ 2.4 2.4 2.4 2.4
13 FLMDO Flash memory
programming mode
_ 0 0 0 0
14 X2 Main System Clock _ 2.6 2.6 2.6 2.6
15 X1 Main System Clock _ 2.58 2.58 2.58 2.5
8
16 REGC Regulator _ 2.54 2.54 2.54 2.5
4
17 VSS GND _ 0 0 0 0
18 EVSS Port GND _ 0 0 0 0
19 VDD Power source _ 5.24 5.24 5.24 5.2
4
20 EVDD Port + _ 5.24 5.24 5.24 5.2
4
21 12C_SCL 12C Bus Clock O 5.09 5.09 5.09 5.0
9
22 12C_SDA 12C Bus Data I/O 5.09 5.09 5.09 5.0
9
23 NC NC I 5.07 5.07 5.07 5.0
7
24 SYS_PWR System Power Driver
Signal Output
O 0.03 0.03 0.03 0.0
3
25 ACC_DET Main Power IC
Detect Signal Input
I 5.33 5.33 5.33 5.3
3
26 AMP_STB
Y Standby Signal
Output
O 5.25 5.25 5.25 5.2
5
27 AMP_MUT
E Mute Signal Output O 5.25 5.25 5.25 5.2
5
28 MAIN_PW
R Driver Signal
Output
O 5.24 5.24 5.24 5.2
4
29 NC NC I 0 0 0 0
30 NC NC I 0 0 0 0
31 NC NC I 0 0 0 0
32 NC NC I 0 0 0 0
33 NC NC I 0 0 0 0
34 NC NC I 0 0 0 0
35 NC NC I 0 0 0 0
36 NC NC I 0 0 0 0
37 NC NC I 0 0 0 0
38 NC NC I 0 0 0 0
39 NC NC I 0 0 0 0
40 ACC_SEN
S Accessories Power
source detect
Signal Input
I 5.19 5.19 5.19 5.1
9
41 BATT_SE
NS Battery detect
Signal Input
I 5.18 5.18 5.19 5.1
9
42 PLL_DAT
A Radio PLL
Communication data
Rx
I 5.07 5.05 5.09 5.0
7
43 PLL_CLK Radio PLL
Communication clock
Tx
O 5.23 5.23 5.24 5.2
4
Ref.
No.
Part
No.
Part Name &
Description I/O(V
)
FM AM WB CD
44 PLL_COM Radio PLL
Communication clock
Tx
O 0 0 0 0
45 PLL_CE Radio PLL
Communication
CippEnable Tx
O 0 0 0 0
46 NC NC I 0 0 0 0
47 NC NC I 0 0 0 0
48 CD_MUTE CD Deck Mute Signal
Input
I 0.01 0.01 0.01 5.0
9
49 NC NC I 0 0 0 0
50 SAX_RX SAT(XM/Sirius)Commu
nication
UART Data
Rx
I 4.93 4.93 4.95 4.9
5
51 SAX_TX SAT(XM/Sirius)Commu
nication
UART Data
Tx
O 0 0 0 0.0
6
52 CD_COM CD Deck
Communication Data
Output
O 0.13 0.13 0.13 0.1
3
53 CD_DATA CD Deck
Communication Data
Output
I 2.2 2.2 2.2 1.5
54 CD_SCK CD Deck
Communication Clock
Output
O 5.18 5.19 5.19 5.1
9
55 CD_RESE
T CD Deck
Communication Clock
Output
O 5.19 5.2 5.2 5.2
56 CD_STB CD Deck
Communication
Strobe Output
O 3.5 3.5 3.5 3.5
57 CD_SW2 CD Deck Disc In
Detect Signal Input
I 0.01 0.01 0.01 5.0
7
58 CD_SW1 CD Deck Detect
Signal Input
I 5.06 5.05 5.07 5.0
7
59 AVREF A/D Converter _ 5.09 5.08 5.1 5.1
60 AVSS A/D Converter _ 0 0 0 0
61 SAT_DET SAT(XM/Sirius)Commu
nication Detect
Input
I 2.72 2.71 2.73 2.7
62 VSM Radio Strong Signal
Input
I 3.3 3.1 0 0.5
63 ST Radio Stereo Signal
Input
I 5.04 5.04 0.68 4
64 WB_SD I 0 0 5.04 0
65 WRC_COM Wired remote
control
communication
Data
Rx
O 4.78 4.78 4.79 4.7
8
66 WRC_DAT
A Wired remote
control
communication
Data
Tx
I 5.05 5.02 5.06 5.0
5
67 WRC_CLK Wired remote
control
communication
Data
Rx
O 4.91 4.9 4.9 4.9
1
68 WRC_CE Wired remote
control
communication
CippEnable Tx
O 0.3 0.3 0.32 0.3
69 LCD_CE LCD Driver
communication
CippEnable Rx
O 0.16 0.15 0.16 0.1
6
70 LCD_CLK LCD Driver
communication Clock
Tx
O 5.15 5.16 5.16 5.1
7
71 LCD_DAT
A LCD Driver
communication Data
Tx
I 5.09 5.08 5.1 5.0
9
72 LCD_COM LCD Driver
communication Data
Rx
O 5.24 5.25 5.25 5.2
4
73 CH_REMO CD Changer
Comunication Remote
Data Tx
O 0 0 0 0
10 TERMINALS DESCRIPTION
10.1. Main Block
6
CQ-5302U