Toyota CQ-LS8180, Service Manual

Page: 6 / 26

6.1. Main Block
IC601 : C2CBHG000067
Pin
No.
Port Description I/O (V)
1 BEEP Buzzer output O 0
2 BIT3 Tape mode SW I 4.8
3 BIT2 Tape mode SW I 4.8
4 BIT1 Tape mode SW I 0
5 FIN Tape motor control O 0
6 RIN Tape motor control O 0
7 MUTE System mute O 0
8 NC No connection - -
9 NC No connection - -
10 NC No connection - -
11 RESET Reset input I 4.8
12 X2 Crystal oscillator terminal - 1.8
13 X1 Crystal oscillator terminal - 1.3
14 GND Ground - 0
15 X2 Crystal oscillator terminal - 1.7
16 X1 Crystal oscillator terminal - 1.4
17 REGOFF (Connecting to ground) - 0
18 REGCPU Not used - -
19 VDD0 +5V power supply - 5.0
20 FCONT2 Frequency control O 4.9
21 FCONT1 Frequency control O 0
22 SD B/S detection I 0
23 ST FM stereo detection I 0
24 PLL-DO PLL data input I 4.8
25 PLL-CLK Shift clock for PLL data O 0
26 PLL-DI PLL data output O 0
27 PLL-CE PLL chip enable O 0
28 NK ON/OFF Not used - -
29 NC No connection - -
30 NC No connection - -
31 VOL-DATA Electronic volume data O 0
32 VOL-CLK Data shift clock O 0
33 LCD-CLK Data shift clock O 0
34 LCD-DO LCD data input I 4.8
35 NC No connection - -
36 LCD-CE LCD chip enable O 0
37 LCD-DI LCD data output O 0
38 VOLA Volume SW contact A I 4.8
39 VOLB Volume SW contact B I 4.8
40 GND Ground - 0
41 VDD +5V power supply - 5.0
42 NC No connection - -
43 MODEA Mode SW contact A I 0
44 MODEB Mode SW contact B I 0
45 NC No connection - -
46 NC No connection - -
47 NC No connection - -
48 NC No connection - -
49 NC No connection - -
50 NC No connection - -
51 SW/9Pro (Connecting to ground) - 0
52 9K/5K Radio tuning step selection I 0
53 NC No connection - -
54 NC No connection - -
55 NC No connection - -
56 CLK Power control IC clock O 0
57 STBY Power control IC stand-by O 5.0
58 LATCH Power control IC data latch O 5.0
59 DATA Power control IC data O 0
60 NC No connection - -
61 NC No connection - -
62 NC No connection - -
63 NC No connection - -
64 MSOUT TPS detection O 4.8
65 NC No connection - -
66 NC No connection - -
67 NC No connection - -
68 MS-PL/FF MS mode selection O 0
69 T.LOAD Tape loading detection I 0
70 DOLBY Dolby NR on/off O 5.0
71 NC No connection - -
72 NC No connection - -
73 TEST (GND pull-down) - 0
74 NC No connection - -
75 NC No connection - -
76 NC No connection - -
77 A/B Tape forward-reverse SW I 0
78 MTL Metal tape mode on/off O 0
79 CAM A/B Tape side detection I 0
80 MSM MS gain control O 4.9
81 NK-IN Not used - -
82 VDD +5V power supply - 5.0
83 AVDD +5V power supply - 4.8
84 GND Ground - 0
85 LANIN LAN data input I 0
86 LANOUT LAN data output O 0
87 GND Ground - 0
88 NC No connection - -
89 ILL-DET ILL detection I 0
90 EQ Metal tape detection I 4.8
91 +B-DET Battery level detection I 4.9
92 ACC-DET ACC level detection I 4.9
93 TAPE-EJ Tape eject SW I 4.9
94 T.IN Tape detection I 0
95 END-B Tape end detection I 0
96 END-A Tape end detection I 0
97 NC No connection - -
98 NC No connection - -
99 NC No connection - -
100 NC No connection - -
Note 1 : Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10M ohms).
6.2. Display Block
IC601 : YEAMLC75853W
Pin
No.
Port Description I/O (V)
1-33 SEG1-20 LCD segment data O 2.6
34-40 - Not used - -
41-43 COM1-3 LCD common output O 2.6
44 S41 Not used - -
45-49 KS1-6 Key scan signal O 5.2
50 KI1 Not used - 0
51-54 KI2-5 Key data input I 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5.2
57 VDD1 Ground through capacitor - 3.5
58 VDD2 Ground through capacitor - 1.8
59 VSS Ground - 0
60 OSC CR oscillator - 4.1
61 DO key data output O 5.2
62 CE Chip enable I 0
63 CLK LCD clock I 0
64 DI LCD data input I 0
6 TERMINALS DESCRIPTION
6
CQ-LS8180A / CQ-LS8181A