Terminals Description - Panasonic CQC1103U - AUTO RADIO/CD DECK Service Manual

CQ-C1103U

10 TERMINALS DESCRIPTION

10.1. Main Block
IC601 : LC7237819D07
Ref. Part Part Name & Description I/O(V) FM(V
No. No.
1 XIN 4. 5
Connection
2 TEST2 GND connection
3 VREG Bypass condenser
connected.
4 VSSCPU GND connection
5 CDC_DAT CD changer data
A
6 N.C. None
7 CDC_CLK CD changer clock
8 CDC_REM CD changer Remote out
_OUT
9 LCD_DO LCD data output
10 LCD_DI LCD data input
11 LCD_CLK LCD clock
12 LCD_CE LCD chip enable output
13 CD_DO CD data output
14 CD_DI CD data input
15 CD_CLK CD clock
16 CD_CE CD chip enable
17 CD_LM+ CD eject
18 CD_LM- CD loading
19 CD_S/L CD 24PIN connection
20 CD_WRQ CD WRQ connection
21 CD_INSW CD insert SW input
1
22 CD_SW2 CD MECHA SW2
23 CD_LIMI CD limit SW
T_SW
24 CD_DRF CD DRF
25 CD_RST CD reset
26 CD_MUTE CD mute
27 N.C. None
28 N.C. None
29 PANEL Panel detect
30 N.C. GND connection
31 N.C. GND connection
32 N.C. GND connection
33 N.C. None
34 N.C. None
35 N.C. None
36 N.C. None
37 N.C. None
38 N.C. None
39 VDDPORT Power supply of PORT
40 VSSPORT GND of PORT
41 N.C. None
42 N.C. None
43 N.C. None
44 N.C. None
45 N.C. None
46 N.C. None
47 N.C. None
48 N.C. None
49 PWR_CNT Power control
50 AMP_CNT Amp stand-by
51 AMP_MUT Amp mute
E
52 N.C. None
53 SSC Tuner search sensitivity
change
54 AF_MUTE AF mute
55 I2C_DAT Electronic VOL data
A
56 I2C_CLK Electronic VOL clock
57 ANT_CNT Motor antena control
58 POWER_L Power LED
ED
59 N.C. None
)
MHz X'tal and I 2.52 2.53 2.52
I 0
O 2.9
- 0
I 0
- -
I 0
O 0
I 5,22 5,22 5.18
O 0
O 5.17 5.19 5.15
O 0.1
I 5.34 5.35 5.12
O 0
O 5.19 5.21 5.17
O 0
O 0
O 0
O 0
I 5.34 5.35 4.26
I 0.1
I 5.17 5.21 0.1
I 0
I 0
O 5.19 5.22 5.21
O 0
- -
- -
I 5.2
I 0
I 0
I 0
- -
- -
- -
- -
- -
- -
- 5.19 5.22 5.21
- 0
- -
- -
- -
- -
- -
- -
- -
- -
O 5.12 5.2
O 5.12 5.2
O 5.19 5.21 5.21
- -
O 0
O 5.19 5.21 5.21
O 5.2
O 5.2
O 5.19 5.21 0
O 0.15 0.15 0.12
- -
Ref. Part
No. No.
AM(V CD(V
60 N.C. (
) )
BZ_OUT
)
61 N.C.
0 0
62 N.C.
2.9 2.93
63 N.C.
64 N.C.
0 0
65 N.C.
0 0
66 TEL_MUT
E
- -
67 BATT
0 0
68 MODE_B
0 0
69 N.C.(RD
S_CLK)
70 REM_IN
0 0
71 MODE_A
72 CDC_STB CD changer strobe input
0.14 0.12
73 NC
74 MONO
0 5.2
75 AM_MODE AM change
76 FM_MODE FM change
0 0.25
77 N.C.
0 0
78 INIT_C
0 0
79 INIT_B
0 5.21
80 INIT_A
81 VSS
0 0.1
82 N.C.(RD
S_DATA)
83 ST
0 5.18
84 SD_FM/A
M
0 5.33
85 N.C.
86 RESET
0 5.2
- -
- -
87 ACC
5.23 5.2
88 N.C.
0 0
89 N.C.
0 0
90 FM/AM_I
FC
0 0
91 N.C.
- -
- - 92 SUBPD
93 VDDPLL
- -
94 N.C.
- -
95 OSC_FM/
- -
AM
- -
96 VSSPLL
97 N.C.
0 0
98 EO1
- -
- -
99 TEST1
- -
100 XOUT
- -
- -
- -
Note 1 :
- -
Voltage measuerments are with respect to ground, with a
- -
voltmeter (internal resistance : 10M ohms).
5.19
5.19
10.2. Display Block
- -
0 0
IC901 : YEAMLC75853NW
Pin No. Port
5.21 5.21
1-4 NC
5.21 5.21
5-31 SEG5-31
32-40 NC
41-43 COM1-3
44-49 KS1-6
- -
6
Part Name & Description I/O(V) FM(V
None -
None -
None -
None -
None -
None -
External MUTE input I
Battery detection I
ROTARY B input I
None -
Remocon data input I
ROTARY A input I
I
None -
Compulsion MONO ON O
O
O
GND connection I
Initial value C I
Initial value B I
Initial value A I
GND connection -
None -
FM stereo input I
Signal detection I
GND connection I
Reset Input I
Power supply I
GND connection I
GND connection I
FM/AM IF input I
GND connection I
None O
Power supply of PLL -
GND connection I
FM/AM osc input I
GND connection -
None -
PLL phase comparison O
error output
GND connection I
4. 5 MHz X'tal and O
Connection
Descriptions
No connection
LCD segment
No connection
LCD common
Key data output
AM(V CD(V
) ) )
- - -
- - -
- - -
- - -
- - -
- - -
5.36 5.35 5.33
5.36 5.35 5.33
5.17 5.18 0
- - -
0 0 0
5.17 5.13 5.16
0 0 0
- - -
0 0 0
8.21 0.13 8.23
0.13 8.2 8.23
0 0 0
0 0 0
5.16 5.19 5.19
0 0 0
0 0 0
- - -
5.34 5.2 5.4
3.12 3.43 0
0 0 0
5.2( 6.4( 5.2(
PWR PWR EJEC
OFF) OFF) T)
5.42 5.42 5.42
0 0 0
0 0 0
1.42 1.42 0
0 0 0
2 2.02 0
5.23 5.22 5.2
0 0 0
1.39 1.26 0
0 0 0
- - -
2 2.02 0
0 0 0
2.62 2.63 2.62
I/O (V)
(V)
- -
O 2.5
- -
O 2.5
O 0.9