1-22
KS-FX725R
Description of major ICs
UPD178018AGC584(IC701) : System controller micon
24 – 1
41 – 64
25
40
80
65
1.Terminal Layout
2.Description
–
–
1 KEY0 I Key input 0
2 KEY1 I Key input 1
3 KEY2 I Key input 2
4 LEVEL I Level meter input
5 SM I Signal meter input
6 SQ I Signal quality input
7 LCDCE O Chip enable output to LCD driver
8 LCDDA O Data output to LCD driver
9 LCDSCK O Clock output to LCD driver
10 BUSI/O O J-BUS I/O switch output
11 UNLOCK O PLL unlock output L:unlock H:lock
12 BUSSI I J-BUS data input
13 BUSSO O J-BUS data output
14 BUSSCK O J-BUS clock output
15 - 20 NC - Non connect
21 GNDPORT - GND for port
22 VDDPORT - VDD for port
23 NC - Non connect
24 AFCK O AF check output L:AF check
25 MONO O Monaural ON/OFF output H:Monaural ON
26 FM/AM O Output for FM power supply H:FM Mode
27 SEEK/STOP O Auto seek/Stop output H:Aut seek L:Stop
28 NC I Non connect
29 IFC I FM middle frequency counter input
30 VDDPLL - VDD for PLL
31 OSC I FM/AM oscillation input
32 NC - Non connect
33 GNDPLL - GND for PLL
34 EO0 O Error out output from change pump
35 EO1 O Error out output from change pump
36 IC - Connect to Ground
37 SD/ST I Seek/Stop port H:SD input
Seek/Stop port L:Stereo input
38 STAGE I H:It is CD mode and there is REPEAT
L:Does not exist
39 NC - Non connect
40 MOTOR O Main motor output H:At rotation
41 FF/REW O MS IC sensitivity switch output L:FF/REW
42 F/R O FWD/REV change input H:FWD L:REV
43 DOLBY O Dolby NR output H:Dolby NR ON
44 MS IN I Between tunes signal input
H:Between tunes
45 I2CSCK I/O E-VOL IC control clock I/O
46 I2CDAO O E-VOL IC control data output
47 I2CDAI I E-VOL IC control data input
48 REEL I Reel rotation detect signal input
49 SUBMO- O Sub motor output -
50 SUBMO+ O Sub motor output +
51 MODE I Mode position detection input H:Non-mode
L:Mode position
52 TAPEIN I Cassette in detect input H:IN L:OUT
53 STBY I Standby detect input H:Eject side
L:Operation side
53 T-END I Tape end detect input 200ms L:tape end
54-59 NC - Non connect
60 MUTE O L:Mute ON H:Mute OFF
61 POWER O Power supply output H:power ON
62 TEL-MUTE I TEL-MUTE input
63, 64 NC - Non connect
65 ENC1 I Encoder signal input
66 ENC2 I Encoder signal input
67 ON I H:Operation mode L:Power save mode
68 STOP I Stop mode input
69 RDSCK I RDS clock input
70 RDSDA I RDS data input
71 REMOCON I Remocon signal input (Not used)
72 DETACH I Detach input It is "L" of 200ms or more and
an operation mode H:power save mode
73 JBUS INT I J-BUS Interruption input
74 REGCPU - Connects GND through the capacitor
of 0.1 F
75 GND - To ground
76 X2 - Crystal oscillator connection for system
77 X1 - clock oscillation
78 REGOSC - Connects GND through the capacitor
of 0.1 F
79 VDD - Power supply
80 NC - Non connect