JVC KS-FX621 - Page 24

KS-FX621
1-24 (No.49825)
4.4 LC72366-9B41 (IC701) : Micon
• Pin layout
• Pin function
1 ~ 24
64 ~ 41
40 ~ 25 65 ~ 80
Pin No. Symbol I/O Function
1 XIN I 4.5MHz crystal oscillation
2 TEST2 - Connect to ground
3 J-BUS SI I J-BUS signal data input (to 74HC126)
4 J-BUS SO O J-BUS signal data output (to 74HC126)
5 J-BUS SCK O J-BUS output clock signal (to 74HC126)
6 J-BUS I/O I/O J-BUS I/O control ie. "H" = "O", "L" = "I" (to 74HC126)
7NC-No use
8 LCD SO O LCD driver data output (to LC75823E pin 64)
9 LCD SCK O LCD driver clock signal (to LC75823E pin 63)
10 LCD CE O LCD driver chip enable port (to LC75823E pin 62)
11 NC - No use
12 SDA O E. volume data output (to TEA6320T pin 1)
13 SCL O E. volume clock output (to TEA6320T pin 32)
14 NC - No use
15 TUNER_ILL O Connect to LED (of TUNER button)
16 TAPE_ILL O Connect to LED (of TAPE button)
17 CD_ILL O Connect to LED (of CD button)
18 DIMMER O Connect to display lamp supply
19~24 NC - No use
25 KS1 O Output for initial setting diode matrix
26 KS0 O Output for initial setting diode matrix
27 K3 I Input for initial setting diode matrix
28 K2 I Input for initial setting diode matrix
29 K1 I Input for initial setting diode matrix
30 K0 I Input for initial setting diode matrix
31 Vdd - 5V supply
32 TEST I Change key input to test mode
33 FF/REW O Change MS IC input sensitivity (L at FF/REW)
34 SEEK/STOP O IF count REQ and output [H] at seek.and scan
35 MONO O Output [H] at FM forced monoral mode
36 R/T O Output of mode radio / tape (Radio:H.Tape:L)
37 NC - No use
38 POWER ON - Output [H] at power on
39 ACC O Output [H] during [ACC DET] is [H]
40 IFC CONT O IF count control output (To tuner cct)
41 MOTER O Main motor output (Drive:H Stop:L)
42 SUB MOTER+ O Sub motor output (sub motor loading )
43 SUB MOTER- O Sub motor output (sub motor eject)
44 BEEP O Beep on (output f :2.25KHz)