Panasonic CQ-C1001W1, Service Manual

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IC601 : LC7237819C89
Pin
No. Port Description I/O(V) FM(V) AM(V) CD(V)
1 XIN 4. 5 MHz X’tal and
Connection I 2.4 2.49 2.48
2 TEST2 GND connection I 0 0 0
3 VREG Bypass condenser
connected.
O 2.9 2.99 2.99
4 VSSCPU GND connection - 0 0 0
5 CDC_DAT
A CD changer data I 0.01 0.01 0.01
6 N.C. None O 0.01 0.01 0
7 CDC_CLK CD changer clock I 0 0.01 0.01
8 CDC_REM
_OUT CD changer Remote
out
O 0.01 0.01 0.01
9 LCD_DO LCD data output I 5.1 5.17 5.17
10 LCD_DI LCD data input O 4.95 5.01 4.92
11 LCD_CLK LCD clock O 5 5.14 5.12
12 LCD_CE LCD chip enable
output
O 0.1 0.18 0.23
13 CD_DO CD data output I 5.3 5.27 4.92
14 CD_DI CD data input O 0.01 0.01 5.12
15 CD_CLK CD clock O 5 5.17 5.1
16 CD_CE CD chip enable O 0.01 0.01 0.4
17 CD_EM CD eject O 0.02 0.02 0.02
18 CD_LM CD loading O 0.01 0.01 5.15
19 CD_S/L CD 24PIN
connection
O 0.01 0 0
20 CD_WRQ CD WRQ connection I 5.3 5.29 0.1
21 CD_INSW
1 CD insert SW input I 0.1 0.1 0.1
22 CD_SW2 CD MECHA SW2 I 5 5.14 5.13
23 CD_LIMI
T_SW CD limit SW I 0 0 5.26
24 CD_DRF CD DRF I 0 0 5.15
25 CD_RST CD reset O 5 5.17 5.14
26 CD_DMUT
E CD mute O 0 0 0
27 N.C. None O 0 0 0
28 N.C. None O 0 0 5.18
29 PANEL Panel detect I 5.18 5.18 0
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 O 0 0 0
34 N.C. None O 0 0 0
35 N.C. None O 0 0 0
36 N.C. None O 0 0 0
37 N.C. None O 0 0 0
38 N.C. None O 0 0 5.14
39 VDDPORT Power supply of
PORT
- 5 5.17 0
40 VSSPORT GND of PORT - 0 0 0
41 N.C. None O 0 0 0
42 N.C. None O 0 0 0
43 N.C. None O 0 0 0
44 N.C. None O 0 0 0
45 N.C. None O 0 0 0
46 N.C. None O 0 0 0
47 N.C. None O 0 0.02 0.02
48 N.C. None O 0 0 0
49 PWR_CNT Power control O 5 5.15 5.14
50 AMP_CNT Amp stand-by O 5 5.15 5.13
51 AMP_MUT
E Amp mute O 5 5.15 5.15
52 N.C. None O 0.03 0.02 0.02
53 SSC Tuner search
sensitivity change
O 0.06 0.06 0.06
54 AF_MUTE AF mute O 5 5.17 5.15
55 I2C_DAT
A Electronic VOL
data
O 5 5.17 5.16
Pin
No. Port Description I/O(V) FM(V) AM(V) CD(V)
56 I2C_CLK Electronic VOL
clock
O 5 5.17 5.16
57 ANT_CNT Motor antena
control
O 5 5.17 5.17
58 POWER_L
ED Power LED O 0.1 0.17 0.17
59 N.C. None O 0.03 0.02 0
60 N.C. (
BZ_OUT
)
None O 0.03 0.02 0
61 N.C. None O 0.03 0.02 0
62 N.C. None O 0.03 0.02 0
63 N.C. None O 0.03 0.02 0
64 N.C. None O 0.03 0.02 0
65 N.C. None O 0.03 0.02 0
66 TEL_MUT
E External MUTE
input
I 5.2 5.33 5.33
67 BATT Battery detection I 5.2 5.33 5.33
68 MODE_B ROTARY B input I 0.54 0.62 0.02
69 RDS_CLK RDS clock I 2.65 2.64 2.63
70 REM_IN Remocon data input I 5 5.12 5.11
71 MODE_A ROTARY A input I 0.6 0.59 0.06
72 CDC_STB CD changer strobe
input
I 0 0.62 0.06
73 NC None O 0.03 0.03 0
74 MONO Compulsion MONO ON O 0.03 0.03 0.03
75 AM_MODE AM change O 8 0.06 8.06
76 FM_MODE FM change O 0.08 8.06 0.08
77 N.C. GND connection I 0.1 0 0
78 INIT_C Initial value C I 0 0 0
79 INIT_B Initial value B I 2.5 5.15 5.14
80 INIT_A Initial value A I 3.23 3.25 3.24
81 VSSADC GND connection - 0 0 0
82 RDS_DAT
A RDS data I 0.3 0.01 2.56
83 ST FM stereo input I 5.3 5.25 0.34
84 SD_FM/A
M Signal detection I 3.2 3.51 0.32
85 N.C. GND connection I 0 0 0
86 RESET Reset Input I OFF OFF OFF
87 ACC Power supply I 5.3 5.37 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 1.4 1.45 1.45
91 N.C. GND connection I 0.1 0 0
92 SUBPD None O 2 2.09 1.39
93 VDDPLL Power supply of
PLL
- 5 5.16 OFF
94 N.C. None I 0 0 0
95 OSC_FM/
AM FM/AM osc input I 1.4 1.36 1.43
96 VSSPLL None - 0 0 0
97 N.C. None O 0.3 0.17 0.21
98 EO1 PLL phase
comparison error
output
O 2 2.08 1.38
99 TEST1 GND connection I 0 0 0
100 XOUT 4. 5 MHz X’tal and
Connection O 2.5 2.56 2.56
Note 1 :
Voltage measuerments are with respect to ground, with a
voltmeter (internal resistance : 10M ohms).
10 TERMINALS DESCRIPTION
10.1. Main Block
6
CQ-C1001W1