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CT-R5
7. GENERAL INFORMATION
7.1 IC
7 PDC044A (IC401: MCON ASSY )
¶ System Micro-computer
¶
Pin Function
No.
Name
I/O
1
TC/XMD
O
Switching Signal
2
XT OUT
O
L: Loading mechanism OPEN (Nch O.D.)
3
XT IN
O
L: Loading mechanism CLOSE(Nch O.D.)
4
S. CLK
I
System bus CLOCK
5
XRESET
I
Reset
6
NC
–– Connected to V
7
NC
–– Not used
8
NC
––
Connected to V
9
V
–– Power supply (–) terminal V
SS
10
CF1
I
Connected to Ceramic oscillator
11
CF2
O
( 6 MHz)
12
V
–– Power supply (+) terminal
DD
13
KEY1
I
key data input (A/D)
14
KEY2
I
key data input (A/D)
15
XTEST
I
TEST MODE detection
16
MS
I
Audio signal detection for MS H: MS
17
PULSE
I
Cassette mechanism Pulse input
18
NC
–– Not used
19
XREC-F
I
FWD REC detection switch (L: ON ban)
20
XHALF
I
L: Tape detection switch ON
21
XREC-R
I
REV REC detection switch (L: ON ban)
22
XCr SW
I
L : CrO2 detection switch ON
23
XMODE
I
L: MODE detection switch ON
24
NC
–– Not used
25
MOTOR
O
Cassette mechanism motor ON
26
SOL
O
Loading mechanism Solenoid ON
30
Description
H :TC / L : MD
DD
DD
SS
L: TEST IN
¶ The information shown in the list is basic information and may not
correspond exactly to that shown in the schematic diagrams.
No.
Name
I/O
27
LED 8
O
H: FWD
28
LED 7
O
H: REV
29
NC
––
Not used
30
LED 6
O
H: POWER ON
31
LED 5
O
H: DOLBY
32
LED 4
O
H: REC
33
LED 3
O
H: REPEAT
H: A → B
34
LED 2
O
35
LED 1
O
H: ONEWAY
36
SO
O
System bus Data OUTPUT
37
SI
I
System bus Data INPUT
38
S.REQ
I/O System bus Request
39
XOPEN
I
L: Tray open explicit switch ON
40
XCLOSE
I
L: Tray close explicit switch ON
41
BIAS
O
H: BIAS oscillation ON
42
NC
––
Not used
43
XCrO
2
O
Switching tape type
44 XREC MUTE O
L: REC MUTE
45 XPB/REC
O
Switching
46
XDOLON
O
L: DOLBY NR
47 XPBMUTE
O
L: PB MUTE
48
NC
–– Not used
Description
H:NORMAL / L:CrO2
ON
L: PB / H: REC
ON
ON
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