Daewoo DV-K841DY, Service Manual

Page: 35 / 43

35
µ-COM PORT DESCRIPTION
NO NAME PORT I/O ASSIGNMENT ACTIVE CN
1 CAP I LIM P110/AN8 O
THIS PORT IS USUALLY OPEN BUT
OUTPUTS THE CAPSTAN STOP STATE
OF FRAME ADVANCE
L DECK(CAPSTAN)
2 SHUTTLE DATA1 P77/AN7 I SHUTTLE DATA INPUT A/D SHUTTLE ASS’Y
3
PWR FAIL/
P76/AN6 I
WHEN POWER IS DISCONNECTED THIS
PORT DETECTS POWER FAILURE AND
THEN GOES INTO POWER
COMPENSATION MODE
L
TIME CHEK
THIS PORT DETECTS THE CHARGED
VOLTAGE ON C503 AND COMPENSATES
THE TIME
A/D
4 SHUTTLE DATA 2 P75/AN5 I SHUTTLE DATA INPUT A/D SHUTTLE ASS’Y
5 AGC P74/AN4 I
AGC ANALOG DATA INPUT FOR AUTO
CH SETTING
A/D PIF
6 END SENSOR P73/AN3 I TAPE END SENSOR DATA INPUT H END SENSOR
7 PATH ADJUST P72/AN2 I USE FOR PATH ADJUST A/D PATH JIG
8 AFT P71/AN1 I
AFT ANALOG DATA INPUT FOR AUTO
FINE TUNING
A/D PIF
9 VIDEO DC ENVE P70/AN0 I VIDEO DC ENVE DATA INPUT A/D VIDEO
10 Hi-Fi DC ENVE P67/AN10 I Hi-Fi DC ENVE DATA INPUT A/D Hi-Fi
11 KEY 2 P66/RTP11 I KEY/OPTION DATA INPUT PULSE
12 KEY 1 P65/RTP10 I KEY/OPTION DATA INPUT H
13 Q V SYNC P64/RTP03 O
PINOUT THIS SIGNAL DURING TRICK
MODE
PULSE VIDEO
14 REMOCON IN P63/RTP02 I REMOCON DATA INPUT PULSE
REMOCON
RECEIVER
15 C.ROTARY P62 O
2HD : SW PULSE
4HD : EXCLUSIVE OR OUTPUT OF HEAD
AMP SW & V.SW PULSE
P VIDEO
16 HEAD AMP SW P61 O
TO SELECT SP H’D OR LP H’D
SP H’D:L LP H’D:H
• 2HD :L
• 4HD
P VIDEO
17 ENVE COMP P60 I
COMPARE SP ENVE WITH SP ENVE
SP : L LP : H
P VIDEO
18 VIDEO H/SW
P57/RTP01
(HASW)
O TO SELECT SP H'D / LP H'D ( VIDEO ) PULSE VIDEO
19 AUDIO H/SW
P56/RTP00
(AHSW)
O TO SELECT Hi-Fi H'D ( Hi-Fi ) PULSE Hi-Fi