39
CIRCUIT OPERATIONS
1. TIMER/SERVO/SYSCON CIRCUIT
NO
NAME
PORT
IN/OUT
ASSIGNMENT
ACTIVE
1
IIC CLK
P80/PBCTLmom
OUTPUT
HIFI, EEPROM IC CLOCK SERIAL
2
LMref(H)
P77
3
CAP PWM
P76/PWM1
OUTPUT
CAPSTAN CONTROL PWM OUTPUT
PULSE
4
DRUM PWM
P75/PWMO
OUTPUT
DRUM CONTROL PWM OUTPUT
PULSE
5
S/REEL
P74/INT1
INPUT
SUPLY REEL PULSE INPUT
PULSE
6
T/REEL
P73/INT0
INPUT
TAKE-UP REEL PULSE INPUT
PULSE
7
SP (H)
P72/TB3IN
OUTPUT
IN SP MODE, HIGH OUTPUT
HIGH
8
L P (H)
P71/TB1IN
OUTPUT
IN SLP MODE, HIGH OUTPUT
HIGH
9
SLP (H)
P70/TB0IN
OUTPUT
IN SLP MODE, HIGH OUTPUT
HIGH
10
SAP (L)
P67/RTP15P/P-Hsy
INPUT
SAP DATA INPUT
LOW
11
REMOCON IN
P66/RTP14/GEN
INPUT
REMOCON DATA INPUT PORT
PULSE
12
CAP. I. LIM
P65/RTP13
OUTPUT
CAPSTAN I. CONTROL
LOW
13
CAP F/R
P65/RTP12
OUTPUT
CAPSTAN MOTOR FWD/RVS
L/H
14
SLOW STEP CTL
P63/RTP11
OUTPUT
15
C. ROTARY
P62/RTP10/EXOR1
OUTPUT
COLOR ROTARY
PULSE
16
H/A/AMP
P61/RTP9/EXOR0
OUTPUT
HEAD AMP SWITCHING
PULSE
17
ENVE COMP
P60/RTP8/EXORin
INPUT
ENVELOPE COMPARE DETECT INPUT
PULSE
18
V. SWP
P57/RTP7
OUTPUT
VIDEO SWITCHING
PULSE
19
Q-Vsync
P56/RTP6
OUTPUT
Q-Vsync OUTPUT
PULSE
20
A. SWP
P55/RTP5
OUTPUT
AUDIO SWITCHING
PULSE
21
RECORD CTL
P54/RTP4/TB2in
OUTPUT
PULSE
22
CAP FG
P53/RTP3/CPFGin
INPUT
CAPSTAN FG INPUT
HIGH
23
DRUM PG
P52/RTP2/DRPGin
INPUT
DRUM PG INPUT
HIGH
24
DRUM FG
P51/RTP1/DRFGin
INPUT
DRUM FG INPUT
HIGH
25
PB CTL
P50/RTP0/CTLin
OUTPUT
HIGH
26
Vcc
Vcc
Vcc
27
CAM D
P47
INPUT
CAM DATA INPUT
LOW
28
CAM C
P46
INPUT
LOW
29
CAM B
P45
INPUT
LOW
30
CAM A
P44
INPUT
PULSE
31
LM FWD
P43
OUTPUT
LOADING MOTOR FWD
PULSE
32
LM RVS
P42
OUTPUT
LOADING MOTOR RVS
PULSE
33
PB (L)
P41
OUTPUT
IN PLAYBACK MODE LOW OUTPUT
L/H
34
REC (H)
P40
OUTPUT
IN REC MODE, HIGH OUTPUT
L/H
35
GND
NUMA
GND
36
GND
NUMB
GND
37
RESET
RESET
INPUT
RESET INPUT PORT
LOW
38
Xin
Xin
INPUT
14.31MHZ OSC IN
LOW
39
Xout
Xout
OUTPUT
14.31MHZ OSC OUT
40
CLK/SEL
CLKSEL
INPUT
GND
LOW
41
Vss
Vss
GND
42
Xcin
P140/Xcin
INPUT
32.768KHZ OSC IN
43
Xcout
Xcout
OUTPUT
32.768KHZ OSC OUTPUT
44
EE (L)
P32
OUTPUT
IN EE MODE LOW OUTPUT
LOW
45
TRICK (H)
P31
OUTPUT
IN TRICK PLAY MODE, HIGH OUTPUT
HIGH
46
A MUTE (H)
P30
OUTPUT
AUDIO MUTE HIGH OUTPUT
HIGH
47
STEREO (L)
P21
INPUT
STEREO DATA INPUT
LOW
48
DRUM SELECT
P20
INPUT
SYSTEM DRUM SELECT
H/L
1) PIN NAME & FUNCTION OF I-CHIP MICOM
Summary of Contents for DV- K504N-SJ
Page 35: ...34 AC001 K584NZ SJ M K584NZ SG M only...
Page 36: ...35...
Page 37: ...36...
Page 38: ...37...
Page 39: ...38...
Page 60: ...59 ELECTRICAL ADJUSTMENTS Fig 1 Circuit Board Location...
Page 92: ...91 INTERCONNECT WIRING DIAGRAM K584N K484N K384N K284N...
Page 93: ...92 POWER SUPPLY SCHEMATIC DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 95: ...94 2HD HEAD AMP SCHEMATIC DIAGRAM K384N K284N K304N...
Page 96: ...95 4HD HEAD AMP SCHEMATIC DIAGRAM K584N K484N K504N...
Page 97: ...96 VIDEO AUDIO SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 98: ...97 PIF INPUT SELECTOR SCHEMATIC DIAGRAM 9V USE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 100: ...99 TIMER SYSCON SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 101: ...100 POWER SUPPLY BLOCK DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 103: ...102 2HD HEAD AMP BLOCK DIAGRAM K384N K284N K304N...
Page 104: ...103 4HD HEAD AMP BLOCK DIAGRAM K584N K484N K504N...
Page 105: ...104 VIDEO AUDIO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 106: ...105 PIF INPUT SELECTOR BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 109: ...108 MAIN PCB 2HEAD 4HEAD...
