Read Panasonic CQ-C5305W Service Manual online
5
4 Technical Descriptions
4.1.
Terminals Description
4.1.1.
Main Block
IC601 : YESAM397
Pin
No
Port
Description
I/O
Vol [V]
FM
AM
CD
1
DBGP0
Not connected
-
-
-
-
2
DBGP1
Not connected
-
-
-
-
3
DBGP2
Not connected
-
-
-
-
4
RDS CLK
Not connected
-
-
-
-
5
RM DATA
Remote control data
I
4.7
4.7
4.7
6
CDC STB/
SYSID4
SYSID4
CD changer Strobe; or
Hub connection device
identification 4
Hub connection device
identification 4
I
0
0
0
7
EVENT
Hub event detection
I
0
0
0
8
RESET
System reset
I
4.7
4.7
4.7
9
XT1
Crystal oscillator 1
(32.768kHz)
(32.768kHz)
I
1
1
1
10 XT2
Crystal oscillator 2
(32.768kHz)
(32.768kHz)
O
1.4
1.4
1.4
11 VSS
Ground
-
0
0
0
12 CF1
Ceramic oscillator 1
(13.5MHz)
(13.5MHz)
I
1.4
1.4
1.4
13 CF2
Ceramic oscillator 2
(13.5MHz)
(13.5MHz)
O
1.3
1.3
1.3
14 VDD
+5V power supply
-
4.8
4.8
4.8
15 INT A
Pulled up for CQ-C5405U;
Pulled down for CQ-
C5305U
Pulled down for CQ-
C5305U
I
4.8
4.8
4.8
16 VSM
Signal meter intensity
(Tuner)
(Tuner)
I
0.2
0
0.2
17 INT B
Pulled down to GND
-
0
0
0
18 LEVEL
Not connected
-
-
-
-
19 N.C.
Not connected
-
-
-
-
20 ACC
ACC level detection
I
4.9
4.9
4.9
21 SYSID1
Hub connection device
identification 1
identification 1
I
4.8
4.8
4.8
22 SYSID2
Hub connection device
identification 2
identification 2
I
4.8
4.8
4.8
23 N.C.
Not connected
-
-
-
-
24 CDC
DATA
Serial data from CD
changer
changer
I
0
0
0
25 CDC CLK/
SYSID3
Serial clock for CD
changer; or Hub connec-
tion device identification 3
changer; or Hub connec-
tion device identification 3
I
0
0
0
26 CD DI (CD
SI)
Serial data from CD
I
0
0
0
27 CD DO (CD
SO)
Serial data to CD
O
0
0
0.6
28 CD CLK
Serial clock for CD
O
4.4
4.4
4.4
29 CD CE (FS) CD chip enable
O
4.6
4.6
3.2
30 CD MUTE
CD mute
I
3.2
3.2
0
31 CD RST
CD reset
O
4.8
4.8
4.8
32 POWER
CNT
System power supply con-
trol
trol
O
4.8
4.8
4.8
33 N.C.
Not connected
-
-
-
-
34 N.C.
Not connected
-
-
-
-
35 CD SW1
CD detection switch 1
I
0
0
0
36 CD SW2
CD detection switch 2
I
0
0
0
37 N.C.
Not connected
-
-
-
-
38 N.C.
Not connected
-
-
-
-
39 VSS
Ground
-
0
0
0
40 VDD
+5V power supply
-
4.8
4.8
4.8
41 N.C.
Not connected
-
-
-
-
42 N.C.
Not connected
-
-
-
-
43 N.C.
Not connected
-
-
-
-
44 N.C.
Not connected
-
-
-
-
45 HUB ACC
CNT
Power supply control for
Hub (CD changer)
Hub (CD changer)
O
0
0
0
46 HUB
CNT
Hub connection check
request
request
O
4.8
4.8
4.8
47 INV CNT
Not connected
-
-
-
-
48 N.C.
Not connected
-
-
-
-
49 LCD DI
Serial data to LCD
O
4.7
4.7
4.7
50 LCD DO
Serial data from LCD
I
4.6
4.6
4.6
51 LCD CLK
Serial clock for LCD
O
4.8
4.8
4.8
52 LCD CE
Chip enable for LCD CPU
O
0
0
0
53 E-VOL I2C
DATA
Serial data for Audio signal
processor (volume)
processor (volume)
O
4.8
4.8
4.8
54 E-VOL I2C
CLK
Serial data for Audio signal
processor
processor
O
4.8
4.8
4.8
55 VDD
+5V power supply
-
4.8
4.8
4.8
56 VSS
Ground
-
0
0
0
57 E-VOL LV
CLK
Serial clock to Audio signal
processor (Audio level)
processor (Audio level)
O
0
0
0
58 E-VOL LV
DATA
Serial data from Audio sig-
nal processor (Audio level)
nal processor (Audio level)
I
0
0
0
59 STBY
Standby mode for Power
amplifier
amplifier
O
4.8
4.8
4.8
60 SRS MODE
1
Not connected
-
-
-
-
61 SRS MODE
2
Not connected
-
-
-
-
62 SRS MODE
3
Not connected
-
-
-
-
63 SRS
FOCUS
ELVL
ELVL
Not connected
-
-
-
-
64 EJ
ILL
Ejection key illumination
control
control
O
4.8
4.8
4.8
65 PANEL IN
Front panel detection
I
0
0
0
66 LCD 5V CNT +5V power supply control
for LCD circuit
O
0
0
0
67 N.C.
Not connected
-
-
-
-
68 EJECT
Ejection switch
I
4.8
4.8
4.8
69 BATT
Battery level detection
I
4.8
4.8
4.8
70 EXT MUTE
Telephone mute
I
4.8
4.8
4.8
71 OP/CL
Open/Close detection for
Front panel
Front panel
I
4.6
4.6
4.6
72 MODE B
(ROTARY 2)
Rotary encoder detection
B for volume
B for volume
I
4.8
4.8
4.8
73 MODE A
(ROTARY 1)
Rotary encoder detection
A for volume
A for volume
I
4.8
4.8
4.8
74 CDC REM
OUT
Remote control for CD
changer
changer
O
0
0
0
75 HUB-TX
Transmission data to Hub
O
0
0
0
76 HUB-RX
Reception data from Hub
I
0
0
0
77 N.C.
Not connected
-
-
-
-
78 N.C.
Not connected
-
-
-
-
79 FM MODE
Power supply control for
FM mode
FM mode
O
4.8
0
4.8
80 AM MODE
Power supply control for
AM mode
AM mode
O
0
4.8
0
81 MONO
Not connected
-
-
-
-
82 ST
FM stereo indication
I
4.8
4.8
4.8
83 EE-PROM
DI/DO
Not connected
-
-
-
-
84 EE-PROM
CS
Not connected
-
-
-
-
85 EE-PROM
SK
Not connected
-
-
-
-
86 ANT CNT
Motor antenna driver con-
trol
trol
-
4.8
4.8
4.8
87 VREG
Connected to capacitor
-
3
3
3
Pin
No
Port
Description
I/O
Vol [V]
FM
AM
CD
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