IC DESCRIPTION
2. PIN DESCRIPTION
PinTerminalNameExplanationRemarks
1P11(0)KEY 1 INPower, Ch up/down, Vol up/down
2P7(7)AGC INConnect this port to AGC of Tuner.
Default voltage :3.75V
Variable voltage : 3.25V, 3.5V, 3.75V
3P7(6)OPTIONH(5V) : Parental control
M(2.5V) : Child lock
L(0V) : None
4P7(5)DRUM SELECTH(5V) : NTSC 4 head
L(0V) : NTSC 2 head
5P7(4)PATH ADJUSTAutomatic PATH adjust
6P7(3)VIDEO ENVELOPE INConnect 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)
7P7(2)END SENSOR INTape END sensor detect input. H: Tape end.
8P7(1)START SENSOR INTape START sensor detect input. H: Tape start.
9P7(0)POWER SAFETY INConnect this port to 26V of FBT.
FBT protect port.
Detect voltage: 3V under Z Hold down
10P6(7)AFT INDC voltage that comes from the 10 pin of
DCT814B
11P6(6)CAPSTAN I LIMIT OUT Limit the current of CAPSTAN MOTOR
Set "L" during PAUSE/STILL
12P6(5)Not used
13P6(4)QV SYNCWhen special play, Quasi Vertical SYNC insertSpecial play:
V SYNC of C.V.S QUE,REV,
STILL,SLOW
14P6(3)REMOCON INPUTRemote Controller pulse input
15P6(2)COLOR ROTARY OUT When color MOD/DEMOD, phase shift pulse
16P6(1)HEAD AMP SW PULSE 4 head option. When special play,
EP head switching pulse
17P6(0)COMPARATOR ENV4 head option.
18P5(7)V HEAD SW PULSEVideo head switching pulse(SP head).
19P5(6)A HEAD SW PULSE6 head option. Not used
20P5(5)REC HWhen recording, set "H"
21P5(4)TRICK HWhen special play, set "H"
22P5(3)CASSETTE DOWN HWhen cassette insert, light up IR led.
23P5(2)CAPSTAN F/RSwitching forward(H) and reverse(L) of
CAPSTAN MOTOR
24P5(1)CRT ON LWhen CRT off, set "H" during 1sec.
25P5(0)SOUND MUTE HWhen stand by TV/VCR, set speaker sound mute.
10 |
ACEC
