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VCR PCB OEC0131A (IC1001)
No.
PORT
72
P41/FTIA
73
P40/PWM14
74
FWE
75
X2
76
X1
77
/RESET
78
OSC1
79
VSS
80
OSC2
81
VCL
82
MD0
83
P34/PWM2
84
P33/PWM1
85
P32/PWM0
86
P31/SV2
87
P30/SV1
88
P70/PPG0
89
P71/PPG1
90
P72/PPG2
91
P73/PPG3
92
P74/PPG4/ RP8
93
P75/PPG5/RP9
94
P76/PPG6/RPA
95
P77/RPG7/RPB
96
P80/YCO
97
P81/EXCAP/ YB0
98
P82/EXCTL
99
P83/ C.ROTARY/R
100
P84/H.AMP/ SW/G
101
P85/COMP/B
102
P85/EZTTRG
103
P87/DPG
104
DFG
105
VIDEO_FF
106
AUDIO_FF
107
DRMPWM
108
CAPPWM
1-18
IC DESCRIPTIONS
PIN NAME
I/O
REM SEL1
IN
REM SEL2
IN
FWE
IN
X2
OUT
X1
IN
/RESET
IN
OSC1
IN
VSS
-
OSC2
OUT
VCL
IN
MD0
IN
AUTO CLOCK SEL
OUT
CAP_LIMIT
OUT
NC
OUT
VIDEO MUTE-H
OUT
TV/VCR
OUT
AUDIO OUT MUTE
OUT
RF SW
OUT
A MUTE-H
OUT
V-REC ST-H
OUT
NC
OUT
NC
OUT
NC
OUT
NC
OUT
Y/C CLK
OUT
Y/C DATA
OUT
Y/C CS
OUT
C.ROTARY
OUT
H.AMP_SW
OUT
COMP
IN
CAP_FULL
OUT
CYL SPEED UP
OUT
D FG/PG
IN
VIDEO H.SW
OUT
HI-FI H.SW
OUT
DRUM PWM
OUT
CAP PWM
OUT
DESCRIPTION
The initial settings of Remote control unit select.
FZTAT Write protect.
Subclock pulse(32.768KHz)
RESET will be done when the voltage goes to HIGH after the reset
signal.
Connect the main crystal(10MHz)
Ground.
Connect the main crystal(10MHz)
Connect the capacitor
FZTAT Write MODE.
The initial settings of AUTO CLOCK On/Off select.
Switch the maximum output current of the Capstan Motor.
Not used.
H for at AUTO_CLOCK in POWER OFF. L for except above case.
H for at RF modulator ON. L for except above case.
L for at AUDIO MUTE and POWER OFF. H for except above case.
Switching of a RF channel.
H for at AUDIO MUTE . L for except above case.
On control of A/V recording(Whole width erase) circuit.
Not used.
Not used.
Not used.
Not used.
Control terminal for Y/C. (CLOCK).
Control terminal for Y/C.(DATA).
Control terminal for Y/C. (CHIP SELECT).
Color Rotary Control output.
Switching output of Head Amp SW.
Comparison results input of Playback Envelope level on SP/LP
heads (4 heads).
Output the HIGH during the acceleration force of capstan motor.
Output terminal for correct cylinder during SLOW.
Input terminal for DRUM FG and DRUM PG signal detection.
Output terminal of Video Head SW.
Output terminal of HI-FI Head SW.
PWM output of Cylinder control.
PWM output of Capstan control.
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