1-10
1.7 SYSCON CIRCUIT
1.7.1
Syscon CPU pin function (IC3001)
PIN NO.
LABEL
IN/OUT
FUNCTION
1
SP_FG
IN
DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
2
TU_FG
IN
DETECTION SIGNAL FOR TAKE-UP REEL ROTATION/TAPE REMAIN
3
PAUSE/COMPU_IN
IN
REMOTE PAUSE INPUT/NC
4
BS_ANT_ON(H)
-
NC
5
RC
IN
REMOTE CONTROL DATA INPUT
6
OPE_SW
-
NC
7
TU_CLK
OUT
CLOCK FOR DATA TRANSFER TO THE TUNER UNIT
8
TU_DATA
OUT
TUNING DATA
9
TU_CE
OUT
CHIP ENABLE OF THE TUNER UNIT
10
LMC1
OUT
LOADING MOTOR DRIVE (1)
11
LMC2
OUT
LOADING MOTOR DRIVE (2)
12
EP(H)
-
NC
13
RMO/R-Y_REV/PAL_ET_REC/JUST(L)
OUT
REMOTE CONTROL OUTPUT FOR CABLE BOX/NC/NC/NC
14
BIL_SEL
-
NC
15
CONV_CTL(H)
OUT
R/F CONVERTER ON/OFF (ON:H, OFF:L)
16
CTL_GAIN
OUT
CONTROL AMP OUT FREQUENCY RESPONSE SWITCHING
17
I2C_DATA_A/V
IN/OUT
I/O DATA
18
I2C_CLK_A/V
OUT
SERIAL DATA TRANSFER CLOCK
19
SP_SHORT(H)/FLY_ON(H)
OUT
MODE SELECT/REC TIMING CONTROL (FLY ERASE ON:H) [HR-S4800U/U(C)]
20
EP_SHORT(H)/FLY_REC_ST(H)
OUT
MODE SELECT/FLY REC START:H [HR-S4800U/U(C)]
21
SB_GAIN
OUT
VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
22
CAP_REV(L)
OUT
CAPSTAN MOTOR REVERSE CONTROL (FWD:H/REV:L)
23
D.FF
OUT
ROTATION DETECTION SIGNAL FOR DRUM MOTOR/TIMING CONTROL SIGNAL FOR REC
24
V.PULSE
OUT
V.PULSE ADDITION TIMING CONTROL
25
RESET
-
RESET TERMINAL (RESET ON:L)
26
A.FF
OUT
AUDIO FF OUTPUT
27
N.REC_ST(H)
OUT
NORMAL AUDIO SOUND RECORDING START
28
S.CASSETTE
IN
DETECTION SIGNAL FOR SVHS CASSETTE (SVHS:H)
29
SLOW_PULSE
OUT
RECEIVING TIMING OUTPUT OF SPECIAL PLAYBACK PICTURE
30
H.REC_ST(H)
OUT
HIFI AUDIO SOUND RECORDING START
31
TU_MUTE(H)
OUT
TUNER AUDIO MUTE CONTROL (MUTE:H)
32
CNR(H)/VPCTL
-
NC
33
CAP_CTL_V
OUT
CAPSTAN MOTOR CONTROL
34
DRUM_CTL_V
OUT
DRUM MOTOR CONTROL
35
A.MUTE(H)
OUT
AUDIO MUTE CONTROL (MUTE:H)
36
VDD
-
SYSTEM POWER
37
X OUT
-
MAIN SYSTEM CLOCK (14.32MHz)
38
X IN
-
MAIN SYSTEM CLOCK (14.32MHz)
39
VSS
-
GND
40
XC IN
-
TIMER CLOCK (32.768kHz)
41
XC OUT
-
TIMER CLOCK (32.768kHz)
42
CLK SEL
IN
SELECT FOR BACKUP METHOD (LITHIUM OR E.CAP):H
43
P.MUTE(L)
OUT
PICTURE MUTE CONTROL (MUTE:L)
44
V_UP(H)
-
NC
45
V.REF
-
NC
46
P.CTL(H)
OUT
CONTROL SIGNAL FOR SWITCHING POWER SUPPLY
47
VIDEO_OUT
OUT
COMPOSITE VIDEO SIGNAL OUTPUT
48
VSS2
-
GND
49
CVIN
IN
COMPOSITE VIDEO SIGNAL INPUT
50
SYN_IN
IN
COMPOSITE SYNCHRONIZING SIGNAL FOR SERVO, VERTICAL SYNCHRONIZING SIGNAL FOR OSD
