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3 7 63 1515 0
Description of major ICs
UPD178018AGC594(IC701) : System controller micon
1.Terminal Layout
24 – 1
25
40
41 – 64
2.Description
Pin
Symbol
I/O
No.
1
KEY0
2
KEY1
3
KEY2
4
LEVEL
5
SM
6
SQ
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
TE
L 13942296513
13
BUSSO
O J-BUS data output
14
BUSSCK
O J-BUS clock output
15 - 20
NC
21
GNDPORT
22
VDDPORT
23
NC
24
AFCK
O AF check output L:AF check
25
MONO
O Monaural ON/OFF output H:Monaural ON
26
FM
O Output for FM power supply H:FM Mode
27
SEEK/STOP
O Auto seek/Stop output H:Aut seek L:Stop
28
NC
29
IFC
30
VDDPLL
31
OSC
32
NC
33
GNDPLL
34
AMEO
O AM error out output
35
FMEO
O FM error out output
36
IC
37
SD/ST
38
STAGE
39
NC
www
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
.
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80
65
Function
I
Key input 0
I
Key input 1
I
Key input 2
I
Level meter input
I
Signal meter input
I
Signal quality input
I
J-BUS data input
-
Non connect
-
GND for port
-
VDD for port
-
Non connect
I
Non connect
I
FM middle frequency counter input
-
VDD for PLL
I
FM/AM oscillation input
-
Non connect
-
GND for PLL
-
Connect to Ground
I
Seek/Stop port H:SD input
Seek/Stop port L:Stereo input
I
H:It is CD mode and there is REPEAT
L:Does not exist
-
Non connect
x
ao
y
i
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8
Pin
Symbol
No.
43
DOLBY
44
MS IN
45
I2CSCK
46
I2CDAO
47
I2CDAI
48
REEL
49
SUBMO-
50
SUBMO+
51
MODE
Q Q
52
TAPEIN
3
6 7
1 3
53
STBY
54-59
NC
60
MUTE 2
61
POWER
62
TEL-MUTE
63, 64
NC
65
ENC1
66
ENC2
67
ON
68
ST OP
RDSCK
69
70
RDSDA
71
REMOCON
72
DETACH
73
JBUS INT
74
REGCPU
75
GND
76
X2
77
X1
78
REGOSC
79
VDD
u163
80
NC
.
2 9
9 4
2 8
I/O
Function
O Dolby NR output H:Dolby NR ON
I
Between tunes signal input
H:Between tunes
I/O E-VOL IC control clock I/O
O E-VOL IC control data output
I
E-VOL IC control data input
I
Reel rotation detect signal input
O Sub motor output -
O Sub motor output +
I
Mode position detection input H:Non-mode
L:Mode position
I
Cassette in detect input H:IN L:OUT
1 5
0 5
8
2 9
9 4
I
Standby detect input H:Eject side
L:Operation side
-
Non connect
O L:Mute ON H:Mute OFF
O Power supply output H:power ON
I
TEL-MUTE input
-
Non connect
I
Encoder signal input
I
Encoder signal input
I
H:Operation mode L:Power save mode
I
Stop mode input
I
RDS clock input
I
RDS data input
I
Remocon signal input (Not used)
I
Detach input It is "L" of 200ms or more and
an operation mode H:power save mode
I
J-BUS Interruption input
-
Connects GND through the capacitor
of 0.1 F
-
To ground
-
Crystal oscillator connection for system
-
clock oscillation
-
Connects GND through the capacitor
m
of 0.1 F
-
Power supply
co
-
Non connect
KS-F525
9 9
2 8
9 9
1-15
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