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5-1. IC PIN DESCRIPTION
• IC801 CXP82220-051Q (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Pin Description
1
A-PLAY
I
Play switch input (DECK A)
2
POWER IN (CED)
I
Power-in detection input
3
—
—
Connected to ground.
4
SIRCS
I
Sircs signal input
5
—
—
Connected to ground.
6
RECVOLOUT
O
Record level control output (PWM)
7
—
—
Not used in this set.
8
BUSIN
I
Control A signal input
9
POWER OUT
O
Power hold output
10
POWER IN (U)
I
Power-in detection input
11
A-SHUT
I
Capstan motor rotation detection input (DECK A)
12
A-SHUMIT
I
Capstan motor rotation detection input (DECK A)
13
CAPM (H/L)
O
Capstan motor high/normal select output “L”:ON
14
PITCH.CON
O
Pitch control ON/OFF output “L”:ON
15
—
—
Not used in this set.
16
BUSOUT
O
Control A signal output
17
LINE MUTE
O
Line mute ON/OFF control output “L”:Mute ON
18
LPF
O
Low pass filter on output
19
RECMUTE
O
Recording mute output “L”:Mute ON
20
B-BIAS
O
Bias ON/OFF output (DECK B) “H”:ON
21
NR SW
O
Dolby selector “H”:C, “Open”:B, “L”:Dolby off
22
B-IV
I
Metal detection input (DECK B)
23
PB SELECT (A/B)
I
Playback A/B selector input “L”:A, “H”:B
24
REC/PB
O
Record/playback dolby NR mode selector output “L”:Playback
25
PBEQ (HIGH/NORM)
O
PB EQ high/normal select output “L”:Normal
26
NR/MUTE/PASS
O
Audio selector “H”:Pass, “Open”:Mute, “L”:Dolby
27
AMSOFF/AMS/BS
O
AMS amp selector “H”:BS, “Open”:AMS, “L”:OFF
28
B-RELAY
O
Relay record/playback selector output (DECK B) “L”:Record
29
B-SHUT
I
Capstan motor rotation detection input (DECK B)
30
B-SHUMIT
I
Capstan motor rotation detection input (DECK B)
31
B-PLAY
I
Play switch input (DECK B)
32
B-HALF
I
Half switch input (DECK B)
33
METER (L)
I
Meter L-CH input (A/D converter)
34
METER (R)
I
Meter R-CH input (A/D converter)
35
KEY3
I
Key 3 input (A/D converter)
36
KEY1
I
Key 1 input (A/D converter)
37
KEY2
I
Key 2 input (A/D converter)
38
RESET
I
System reset input
39
XIN
I
System clock oscillator input (10 MHz)
40
XOUT
O
System clock oscillator output (10 MHz)
41
VSS
—
Ground
42
—
—
Connected to ground.
43
—
—
Connected to ground.
44
KEY4
I
Key 4 input (A/D converter)
45
RECVOL IN
I
Record volume input (A/D converter)
46
—
—
Connected to power supply.
47
—
—
Connected to ground.
48 – 50
—
—
Not used in this set.
51
ARL (LED)
O
AUTO LED driver “H”:ON
52
SYNC (LED)
O
SYNCHRO LED driver “L”:ON
53, 54
—
—
Not used in this set.
SECTION 5
DIAGRAMS
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