Section 6. Μ-Com Port - Daewoo DV-K882SY-AN Service Manual

µ-COM PORT
SECTION 6.
NO. NAME
1 Vcc
2 REMOCON
3 GND
4 S/REEL
5 T/REEL
6 TAPE START
7 C. SYNC
8 SYNC DET (L)
9 C+ (L)
10 Vss
11 A/V DATA
12 A/V CLOCK
13 PIF ON
14 CAP I LIM
15 CAP. F/R
16 H.A SW
17 C. ROTARY
18 N.C
19 V.SW
20 Q-Vsync
PORT IN/OUT
Vcc
P87/GEN 1 INPUT
P86/GEN 0
P85/INT 1 INPUT
P84/INT 0 INPUT
P83/TB3 IN INPUT
P82/TB2 IN INPUT
P81/TB1 IN INPUT
P80/TB0 IN INPUT
Vss
P77/RTP23/ED23 OUTPUT
P76/RTP22/ED2 OUTPUT
P75/RTP21/ED1 OUTPUT
P74/RTP20/EDO OUTPUT
P83/RTP19 OUTPUT
P72/RTP18/EX01 OUTPUT
P71/RTP17/EX00 OUTPUT
P70/RTP16/EX00
P67/RTP15 OUTPUT
P66/RTP14 OUTPUT
ASSIGNMENT
• Normal operating mode: 5V±10%
• Low speed mode: 2.7V min-5.5V max
REMOCON DATE INPUT PORT
SUPPLY REEL PULSE INPUT
TAKE-UP REEL PULSE INPUT
TAPE START SENSOR DATE INPUT
If there is CANAL broadcast, input signal
from A/V SWITCHING circuit is 'LOW'.
GND
A/V DATA
A/V CLOCK
If PIN ON=HIGH, and then Select the RF
mode, otherwise to select LINE mode.
CAPSTAN I. CONTROL:
** In case of SLOW mode
3.2V
0V
** Others: DC 3.2V
CAPSTAN FWD/RVS
To select HEAD-AMP:
** SP HEAD: LOW
** LP/EP HEAD: HIGH
When CUE/REV/STILL/SLOW, used for the
PB-colour signal processing.
** Used only for 4HD
To select R/L CHANNEL. (Video Head)
Quasi-Vsync
D 4H
** D: Variable Value
51
ACTION
PULSE
PULSE
PULSE
HIGH
LOW
LOW
SERIAL
SERIAL
HIGH
LOW/HIGH
PULSE
HIGH
/LOW
PULSE
PULSE
5V
0V