Panasonic CQ-C1113NW, Service Manual

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IC601 : LC7237849D08
Ref.
No. Part
No.
Part Name & Description I/O(V) FM(V
)
AM(V
)
CD(V
)
1 XIN 4. 5 MHz X’tal and
Connection
I 2.52 2.53 2.52
2 TEST2 GND connection I 0 0 0
3 VREG Bypass condenser
connected. O 2.9 2.9 2.93
4 VSSCPU GND connection - 0 0 0
5 CDC_DAT
A CD changer data I 0 0 0
6 N.C. None O 0 0 0
7 CDC_CLK CD changer clock I 0 0 0
8 CDC_REM
_OUT CD changer Remote out O 0 0 0
9 LCD_DO LCD data output I 5,22 5,22 5.18
10 LCD_DI LCD data input O 0 0 0
11 LCD_CLK LCD clock O 5.17 5.19 5.15
12 LCD_CE LCD chip enable output O 0.1 0.14 0.12
13 CD_DO CD data output I 5.34 5.35 5.12
14 CD_DI CD data input O 0 0 5.2
15 CD_CLK CD clock O 5.19 5.21 5.17
16 CD_CE CD chip enable O 0 0 0.25
17 CD_LM+ CD eject O 0 0 0
18 CD_LM- CD loading O 0 0 0
19 CD_S/L CD 24PIN connection O 0 0 5.21
20 CD_WRQ CD WRQ connection I 5.34 5.35 4.26
21 CD_INSW
1 CD insert SW input I 0.1 0 0.1
22 CD_SW2 CD MECHA SW2 I 5.17 5.21 0.1
23 CD_LIMI
T_SW CD limit SW I 0 0 5.18
24 CD_DRF CD DRF I 0 0 5.33
25 CD_RST CD reset O 5.19 5.22 5.21
26 CD_MUTE CD mute O 0 0 5.2
27 N.C. None - - - -
28 N.C. None - - - -
29 PANEL Panel detect I 5.2 5.23 5.2
30 N.C. GND connection I 0 0 0
31 N.C. GND connection I 0 0 0
32 N.C. GND connection I 0 0 0
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 - 5.19 5.22 5.21
40 VSSPORT GND of PORT - 0 0 0
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 O 5.12 5.2 5.19
50 AMP_CNT Amp stand-by O 5.12 5.2 5.19
51 AMP_MUT
E Amp mute O 5.19 5.21 5.21
52 N.C. None - - - -
53 SSC Tuner search sensitivity
change
O 0 0 0
54 N.C.(AF
_MUTE) None - - - -
55 I2C_DAT
A Electronic VOL data O 5.2 5.21 5.21
56 I2C_CLK Electronic VOL clock O 5.2 5.21 5.21
57 ANT_CNT Motor antena control O 5.19 5.21 0
58 POWER_L
ED Power LED O 0.15 0.15 0.12
Ref.
No. Part
No.
Part Name & Description I/O(V) FM(V
)
AM(V
)
CD(V
)
59 N.C. None - - - -
60 N.C. (
BZ_OUT
)
None - - - -
61 N.C. None - - - -
62 N.C. None - - - -
63 N.C. None - - - -
64 N.C. None - - - -
65 N.C. None - - - -
66 TEL_MUT
E External MUTE input I 5.36 5.35 5.33
67 BATT Battery detection I 5.36 5.35 5.33
68 MODE_B ROTARY B input I 5.17 5.18 0
69 RDS_CLK RDS clock I 0 0 0
70 REM_IN Remocon data input I 0 0 0
71 MODE_A ROTARY A input I 5.17 5.13 5.16
72 CDC_STB CD changer strobe input I 0 0 0
73 NC None - - - -
74 MONO Compulsion MONO ON O 0 0 0
75 AM_MODE AM change O 8.21 0.13 8.23
76 FM_MODE FM change O 0.13 8.2 8.23
77 N.C. GND connection I 0 0 0
78 INIT_C Initial value C I 0 0 0
79 INIT_B Initial value B I 5.16 5.19 5.19
80 INIT_A Initial value A I 0 0 0
81 VSS GND connection - 0 0 0
82 RDS_DAT
A RDS data I 0 0 0
83 ST FM stereo input I 5.34 5.2 5.4
84 SD_FM/A
M Signal detection I 3.12 3.43 0
85 N.C. GND connection I 0 0 0
86 RESET Reset Input I 5.2(
PWR
OFF) 6.4(
PWR
OFF) 5.2(
EJEC
T)
87 ACC Power supply I 5.42 5.42 5.42
88 N.C. GND connection I 0 0 0
89 N.C. GND connection I 0 0 0
90 FM/AM_I
FC FM/AM IF input I 1.42 1.42 0
91 N.C. GND connection I 0 0 0
92 SUBPD None O 2 2.02 0
93 VDDPLL Power supply of PLL - 5.23 5.22 5.2
94 N.C. GND connection I 0 0 0
95 OSC_FM/
AM FM/AM osc input I 1.39 1.26 0
96 VSSPLL GND connection - 0 0 0
97 N.C. None - - - -
98 EO1 PLL phase comparison
error output
O 2 2.02 0
99 TEST1 GND connection I 0 0 0
100 XOUT 4. 5 MHz X’tal and
Connection
O 2.62 2.63 2.62
Note 1 :
Voltage measuerments are with respect to ground, with a
voltmeter (internal resistance : 10M ohms).
10.2. Display Block
IC901 : YEAMLC75854W
Pin No. Port Descriptions I/O
(V) (V)
1-4 NC No connection - -
5-39 SEG5-39 LCD segment O 2.5
40-43 COM1-4 LCD common O 2.5
44-49 KS1-6 Key data output O 0.9
50-54 KI1-5 Key data input I 0
10 TERMINALS DESCRIPTION
10.1. Main Block
6
CQ-C1113NW