Read Sony TC-TX313 / TC-TX515 Service Manual online
– 31 –
6-8. IC PIN DESCRIPTION
• IC04
• IC04
µ
PD75108GF-N14-3BE (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
RVS REC RELAY
O
RVS REC relay control output (Not used in this set.)
2
FWD REC RELAY
O
FWD REC relay control output (Not used in this set.)
3
RVS PLAY RELAY
O
RVS PLAY relay control output (Not used in this set.)
4
FWD PLAY RELAY
O
FWD PLAY relay control output (Not used in this set.)
5
POWER OUT
O
Power output (Not used in this set.)
6
AMS OUT
O
AMS gain control output (Not used in this set.)
7
RESET
I
Reset input (L : Reset)
8
XTAL
—
Oscillator circuit (4.19 MHz)
9
XTAL
—
Oscillator circuit (4.19 MHz)
10
NR OUT
O
Noise reduction signal output (Not used in this set.)
11
REC/PB
O
REC/PB select output (H : REC, L : PB)
12
F/R
O
RVS/FWD select output (H : RVS, L : FWD) (Not used in this set.)
13
BIAS
O
Bias oscillation control output (H : ON, L : OFF)
14
LINE MUTE
O
Line mute control output (H : OFF, L : ON)
15
PB.MUTE
O
PB mute control output (H : OFF, L : ON)
16
REC.MUTE
O
REC mute control output (H : OFF, L : ON)
17
TAPE 4
O
REC equalizer select output (H : METAL) (Not used in this set.)
18
TAPE 2
O
REC equalizer select output (H : CrO
2
)
19
TAPE 1
O
REC equalizer select output (H : NORMAL)
20
M.FWD
O
Reel motor forward direction rotation output
21
M.REV
O
Reel motor reverse direction rotation output
22
H.SPEED
O
Tape speed control output
23
L+
O
Loading motor forward direction rotation output
24
L-
O
Loading motor reverse direction rotation output
25
AU BUS OUT
O
AU BUS signal output
26
VSS
—
Ground
27
F.REC
I
Mechanism deck FWD REC PROOF claw detection signal input (H : REC inhibit)
28
R.REC
I
Mechanism deck RVS REC PROOF claw detection signal input (H : REC inhibit)
29
PACK IN
I
Loading detection signal input
30
AU BUS IN
I
AU BUS signal input
31
AMS IN
I
AMS signal input
32
KEY 1
I
Key switch input 1
33
KEY 0
I
Key switch input 0
34
S.PLAY MODE
I
Mechanism deck tape position detection signal input
35
F.REEL
I
Mechanism deck FWD reel sensor detection signal input
36
R.REEL
I
Mechanism deck RVS reel sensor detection signal input
37
MODE SEL
I
Connect to Ground in this set.
38
CrO2
I
Mechanism deck CrO
2
switch input
39
TAPE IN
I
Mechanism deck HALF switch input
40
TEST PIN
I
Input for test mode. (L : Test mode)
41
NC
I
Connect to Ground in this set.
42, 43
NC
O
Not used in this set.
44
POWER DOWN IN
I
Power detection input
45
NR.LED
O
NR LED output (Not used in this set.)
46
PB.LED
O
PLAYBACK LED output (Not used in this set.)
47
TAPE.LED
O
Tape indicator LED output
48
CD SYC.LED
O
CD SYNC LED output
49
REC.LED
O
REC LED output
50
>>.LED
O
) LED output
51
<<.LED
O
0 LED output
52
PAUSE.LED
O
PAUSE LED output
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