7.1. Main Block
IC601 : C2BBGF000090
Pin
No.
Port Descriptions I/O FM
(V)
AM
(V)
CD
(V)
TP
(V)
1 STBY Power Control IC
Standby Control
O 4.9 4.8 4.9 4.8
2 LATCH Power Control IC Latch
Control
O 4.9 4.9 4.9 4.9
3 CD SOM CD Serial Data Input I 0 0 1.5 0
4 CD SIM CD Serial Data Output O 0 0 0 0
5 CD SCKM CD Serial Data Clock O 0 0 4.9 0
6 MUTE H: Mute ON, L: Mute OFF O 0 0 0 0
7 DATA Power Control IC Data O 0 0 0 0
8 CLK Power Control IC Cloock O 0 0 0 0
9 EQ Metal tape Detection I 4.8 4.8 4.8 0
10 BIT3 Tape Rotary Switch 3 I 4.8 4.8 4.8 0
11 BIT2 Tape Rotary Switch 2 I 4.8 4.8 4.8 4.8
12 BIT1 Tape Rotary Switch 1 I 0 0 0 4.8
13 VOL CK Electronic Volume Clock O 0 0 0 0
14 VOL DATA Electronic Volume Data O 0 0 0 0
15 RIN Tape Control O 0 0 0 0
16 FIN Tape Control O 0 0 0 0
17 RADIIO
MUTE
- - 0 0 0 0
18 IFZ IF Noise Control I 4.8 4.8 4.8 4.8
19 DX/LOC - - 0 0 0 0
20 ST H: Stereo, L: Monoral i 0 1.8 0 0
21 SSC Search Stop Clear O 0 0 0 0
22 SD Radio Signal Detect I 0 0 0 0
23 REO IN Reostat Signal Input I 0 0 0 0
24 ACC DET ACC Votage Detect I 1.9 1.9 1.9 1.9
25 +B DET BATT Voltage Detect I 0 1.8 1.8 1.8
26 ILL DET Illumi. Detection I 2.3 2.3 2.4 2.3
27 VDD +5V Power supply - 4.9 4.9 4.9 4.9
28 VSM (Connecting to Ground) - 0 0 0 0
29 MAIN VOL (Connecting to Ground) - 0 0 0 0
30 GND (Connecting to Ground) - 0 0 0 0
31 GND (Connecting to Ground) - 0 0 0 0
32 GND Ground - 0 0 0 0
33 REG CPU CPU Regulator Terminal - 3.4 3.4 3.4 3.4
34 VDD0 +5V Power Supply - 4.9 4.9 4.9 4.9
35 REG OSC Oscillate Terminal - 4.9 4.9 4.9 4.9
36 X2 Main System X-tal I 1.9 1.9 1.9 1.9
37 X1 Main System X-tal O 2.1 2.1 2.1 2.1
38 GND 0 Ground - 0 0 0 0
39 NC - - - - - -
40 GND 2 Ground - 0 0 0 0
41 AM IF AM IF Counter I 0 2.0 0 0
42 FM IF FM IF Counter I 2.0 0 0 0
43 VDD PLL +5V Power supply - 4.8 4.8 4.8 4.8
44 FM OSC FM Oscillator Input I 2.5 0 0 0
45 AM OSC AM Oscillator Input I 0 1.8 0 0
46 GND PLL Ground (for PLL) - 0 0 0 0
47 EO 0 Phase Detecter Output O 1.4 1.4 0 1.4
48 (NC) - - - - - -
49 IC (VPP) IC VPP Terminal I 0 0 0 0
50 RESET Reset Control Input I 4.8 4.8 4.8 4.8
51 VOL B Rotary Encoder I 4.8 4.8 0 4.8
52 VOL A Rotary Encoder I 0 0 0 4.8
53 RESMONI 4.5V Detect Monitor O 4.9 4.9 4.9 4.9
54 LCD DO LCD Driver Data Input I 4.8 4.8 4.9 4.8
55 LCD DI LCD Driver Data Output O 0 0 0 0
56 LCD CE LCD Driver Chip Enable O 0 0 0 0
57 LCD CLK LCD Driver Clock O 0 0 0 0
58 POWER POWER Switch Signal I 4.8 4.8 4.8 4.8
59 BEEP Beep Sound Output O 0 0 0 0
60 (NC) - - 0 0 0 0
61 PWM ILL Illumi. Power Control O 7.6 7.6 7.6 7.6
62 PWM LCD LCD Power Control O 7.6 7.6 7.6 7.6
63 M2F Tape Motor Control O 0 0 0 0.5
64 (NC) - - - - - -
Pin
No.
Port Descriptions I/O FM
(V)
AM
(V)
CD
(V)
TP
(V)
65 (NC) - - - - - -
66 (NC) - - - - - -
67 DIV MAIN - - 0 0 0 0
68 DIV SUB - - 0 0 0 0
69 SO (NC) - - 0 0 0 0
70 SI (NC) - - 0 0 0 0
71 LCD ON - - 0 0 0 0
72 ILL ON - - 0 0 0 0
73 DIN AVC LAN Data Output O 0 0 0 0
74 D OUT AVC LAN data Input I 0 0 0 0
75 (NC) - - 0 0 0 0
76 MODE B Rotary Encoder(MODE SW) I 0 0 0 0
77 MODE A Rotary Encode (MODE SW) I 0 0 0 0
78 TAPE EJ TAPE EJECT Key I 4.8 4.8 4.8 4.8
79 CD EJ CD EJECT Key I 4.8 4.8 4.8 4.8
80 INTERS 4.5V Detect Interrupt I 4.9 4.9 4.9 4.9
81 SETUP 2 - - - - - -
82 GND1 Ground - 0 0 0 0
83 SW1 Disc Detect Switch 1 I 0 0 3.9 0
84 SW3 Disc Detect Switch 3 I 0 0 4.2 0
85 CD ON CD CPU Stundby O 0 0 4.9 0
86 CD RESET CD CPU Reset O 4.9 4.9 4.9 4.9
87 MS PL/FF Tape Mode Control O 0 0 0 0
88 F/R Tape A/B Side Signal O 0 0 0 0
89 MTL Tape Metal Control O 0 0 0 4.8
90 DOLBY Tape Dolby Control O 0 0 0 4.9
91 MS OUT Tape Music Sensor
Detection
I 4.8 4.8 4.8 0
92 MSM Tape blank Signal
Detect Sensitivity
O 0 0 0 4.8
93 AMP ON AMP Power Control O 4.8 4.8 4.8 4.8
94 TIN Tape In Detect I 4.8 4.8 4.8 0
95 T LOAD Tape Position Detect I 4.8 4.8 4.8 0
96 A/B Tape A/B Side Signal I 0 0 0 0
97 END A Tape End Detect A I 0 0 0 0
98 END B Tape End Detect B I 4.7 4.7 4.7 0
99 VDD +5V Power supply - 4.9 4.9 4.9 4.9
100 GND Ground - 0 0 0 0
Note 1 : Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10M ohms).
7.2. Display Block
IC901 : C0HBA0000016
Pin
No.
Port Descriptions I/O Vol.
(V)
1-38 SEG1-38 LCD segment data O 2.4
39,40 SEG39,40 Not used - -
41-43 COM1-3 LCD common O 2.4
44 KS1/S41 Not used - -
45 KS2/S42 Not used - -
46-49 KS2-9 Key scan O 4.8
50 KI1 Not used - -
51-54 KI2-5 Key data I 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 4.8
57 VDD1 Ground through capacitor terminal - 3.2
58 VDD2 Ground through capacitor terminal - 1.6
56 Vss Ground - 0
60 OSC CR oscillator terminal - 3.8
61 DO LCD data O 4.8
62 CE LCD driver chip enable I 0
63 CL Clock for LCD I 0
64 DI LCD data I 0
7 TERMINALS DESCRIPTION
7
CQ-JT1010X / CQ-JS6910X
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