JVC KD-LH3105, Руководство по обслуживанию

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1-52 (No.49839)
4.24 UPD784217AGC205 (IC701) : CPU
• Pin Layout
• Pin function
1 25
75 51
100 26
76 50
Pin No Symbol I/O Function
1 to 7 NC - Not use
8 ANT CONT - Antenna remote control
9 VDD - Power supply
10 X2 -
11 X1 -
12 VSS - Ground
13 XT2 -
14 XT1 -
15 RESET I System reset
16 REMOCON I Remocon input
17 BUS-INT I J-BUS INT
18 PS2 I Power save2, H means STOP mode
19 CD-REQ I CD REQ INPUT
20 RDS-SCK I Not use
21 STEERING REMOCON I Steering remocon input
22 KEY DATA I KEY DATA
23 AVDD - A/D converter power supply
24 AVREF0 - A/D reference voltage
25 VOL1 I Volume encoder pulse input 1
26 VOL2 I Volume encoder pulse input 2
27 to 29 NC - Not use
30 MRC I MRC input
31 SQ I Not use, pull down
32 SM I S.METER input
33 AVSS - Ground
34 NC - Not use
35 STAGE3 I Feature selection, pull up
36 AVREF -
37 BUS-SI I J-BUS data input
38 BUS-SO O J-BUS data output
39 BUS-SCK I/O J-BUS clock input/output
40 BUS-I/O O J-BUS I/O selection output:H, input:L
41 DISP DA O DISPLAY DATA output
42 DISP SCK O DISPLAY SCK
43 DISP CE O DISPLAY CE
44 BUZZER O Buzzer output
45 E2PROM-DI I I2C data input
46 E2PROM-DO O I2C data output
47 E2PROM-CLK O I2C clock output
48 OPEN I DOOR OPEN SW