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IC DESCRIPTION
2. PIN DESCRIPTION
Pin Terminal Name Explanation Remarks
1 P11(0) KEY 1 IN Power, Ch up/down, Vol up/down
2 P7(7) AGC IN Connect this port to AGC of Tuner.
Default voltage :3.75V
Variable voltage : 3.25V, 3.5V, 3.75V
3 P7(6) OPTION H(5V) : Parental control
M(2.5V) : Child lock
L(0V) : None
4 P7(5) DRUM SELECT H(5V) : NTSC 4 head
L(0V) : NTSC 2 head
5 P7(4) PATH ADJUST Automatic PATH adjust
6 P7(3) VIDEO ENVELOPE IN Connect this port to 6 pin of IZ01.
Maximum point search DC ENVE input.
Auto tracking restart condition
(SP:2-5V, LP/SLP:1.5-5V)
7 P7(2) END SENSOR IN Tape END sensor detect input. H: Tape end.
8 P7(1) START SENSOR IN Tape START sensor detect input. H: Tape start.
9 P7(0) POWER SAFETY IN Connect this port to 26V of FBT.
FBT protect port.
Detect voltage: 3V under
Z
Hold down
10 P6(7) AFT IN DC voltage that comes from the 10 pin of
DCT814B
11 P6(6) CAPSTAN I LIMIT OUT Limit the current of CAPSTAN MOTOR
Set "L" during PAUSE/STILL
12 P6(5) Not used
13 P6(4) QV SYNC When special play, Quasi Vertical SYNC insert
V SYNC of C.V.S
Special play:
QUE,REV,
STILL,SLOW
14 P6(3) REMOCON INPUT Remote Controller pulse input
15 P6(2) COLOR ROTARY OUT When color MOD/DEMOD, phase shift pulse
16 P6(1) HEAD AMP SW PULSE 4 head option. When special play,
EP head switching pulse
17 P6(0) COMPARATOR ENV 4 head option.
18 P5(7) V HEAD SW PULSE Video head switching pulse(SP head).
19 P5(6) A HEAD SW PULSE 6 head option. Not used
20 P5(5) REC H When recording, set "H"
21 P5(4) TRICK H When special play, set "H"
22 P5(3) CASSETTE DOWN H When cassette insert, light up IR led.
23 P5(2) CAPSTAN F/R Switching forward(H) and reverse(L) of
CAPSTAN MOTOR
24 P5(1) CRT ON L When CRT off, set "H" during 1sec.
25 P5(0) SOUND MUTE H When stand by TV/VCR, set speaker sound mute.