Mitsubishi Electric CQ-JB0160A, Service Manual

Page: 7 / 31

7.1. Main Block
IC601 : C2BBGF000256
Pin
No. Port Descriptions I/O Vol.
(V)
1 SUBVOLCLK (Ground pull-down) - 0
2 DIV SW Diversity switch I 5.1
3 SET S2 System function setting O 0
4 AVSS Ground - 0
5 SET S0 System function setting O 0
6 SET S1 System function setting O 0
7 AVREF +5V power supply - 5.1
8 SET R0 System function setting I 0
9 SET R1 System function setting I 0
10 SET R2 System function setting I 0
11 CD DI CD data output O 2.4
12 CD DO CD data input I 1.4
13 CD CLK Shift clock for CD data O 4.9
14 PLL DI PLL data input I 5.0
15 MBUSY OUT M-BUS busy O 0
16 MBUSY IN M-BUS busy I 0
17 MDATA M-BUS data I/O 4.9
18 MCLK M-BUS clock O 4.9
19 PLLDO PLL data output O 0
20 PLLSTB PLL strobe O 0
21 PLLCLK PLL clock O 0
22 MUTE A Mute signal O 0
23 VOL STB Electric volume strobe O 0
24 VOL CLK Electric volume clock O 0
25 VOL DATA Electric volume data O 0
26 AMP CONT Power amp. stand-by O 4.9
27 CD PON CD power control O 4.9
28 CD ON CD control LSI enable O 4.9
29 SW1 CD disc-in SW I 0
30 SW3 CD disc-out SW I 4.8
31 TUNEA Tuner switch signal I 4.7
32 TUNEB Tuner switch signal I 0.5
33 GND Ground - 0
34 VOLINA Volume switch signal I 0
35 VOLINB Volume switch signal I 0
36 CD RESET CD controller reset O 0
37 MAIN Main antenna selection O 4.9
38 SUB Sub. antenna selection O 8.3
39 BIBIRI CNT Rattle noise check control O 5.0
40 SECDI Security data input I 0
41 SECDO Security data output O 0
42 SECCLK Security data read / write
clock
O 0
43 SECCS Security ROM select O 0
44 FreqOUT Tone/Burst frequency O 0
45 TONE/TRG Tone/Triger control O 0
46 S.PULSE Speed pulse input I 0
47 Ga INPUT GALA signal input I 5.0
48 ST FM stereo detection I 0.3
49 LCD CONT LCD back ligth on/off O 4.8
50 BUZZER Buzzer output O 0
51 NC No connection - -
52 KS0 Key strobe O 0
53 KS1 Key strobe O 0
54 KS2 Key strobe O 0
55 KS3 Not used - -
56 KR0 Key data I 0
57 KR1 Key data I 1.6
58 KR2 (Groung pull-down) - 0
59 KR3 (Groung pull-down) - 0
60 RESET Reset input I 4.8
61 M-DATA IN M-BUS data I 4.9
62 CD EJECT CD eject SW I 4.8
63 BATTDET Battery level detection I 5.0
64 ACCDET ACC level detection I 0
65 MUTE_P Power amp. mute O 0
66 ANT Motor antenna power on/off O 0
Pin
No. Port Descriptions I/O Vol.
(V)
67 GND Ground - 0
68 VDD +5V power supply - 4.9
69 X2 Crystal oscillator - 0
70 X1 Crystal oscillator - 2.6
71 GND Ground - 0
72 XT2 Crystal oscillator - 2.7
73 XT1 Crystal oscillator - 2.5
74 AVDD +5V power supply - 4.9
75 AV REF0 +5V power supply - 5.0
76 VAM/FM AM/FM vcont I 0
77 REMOTE_A (+5V pull-up) - 5.0
78 BIBIRI.A (Ground pull-down) - 0
79 CLIPCONT Not used - -
80 REMOTE_D (Ground pull-down) - 0
Note 1 : Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10M ohms).
7.2. Display Block
IC901 : YEAMSM6786
Pin
No. Port Descriptions I/O Vol.
(V)
1- 6 SEG1 - 6 LCD segment data O 2.3
7 SEG7 No connection - -
8-20 SEG8-20 LCD segment data O 2.3
21 VDD +5V power supply - 5.0
22-29 SEG21 - 28 LCD segment data O 2.3
30 - No connection - -
31-34 KR0 - 3 Key data input I 4.4
35,36 - No connection - -
37-40 KS1 - 4 Key scanning O 3.5
41 KS5 Not used - -
42 LOAD LCD LSI chip enable I 0
43 CLK LCD clock I 0
44 DATA I/O LCD/Key dat I/O 0
45 INT LCD interrupt O 3.8
46 /RESET Reset I 4.0
47 LED Not used - -
48 3/4 SEL (Connecting to ground) - 0
49 VDD +5V power supply - 5.0
50 OSC CR oscillator - 2.2
51 VSS Ground - 0
52 TEST (Connecting to ground) - 0
53-56 COM4 - 1 LCD common O 2.3
7 TERMINALS DESCRIPTION
7
MITSUBISHI / CQ-JB3160A / CQ-JB0160A