Emerson EWR20V4 Service Manual page 74

Dvd recorder & video cassette recorder
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Pin
IN/
Signal
No.
OUT
Name
OUTPUT-
Output Select
46 OUT
SELECT
(DVD="L"/VCR="H")
Drum PG/FG Input
47
IN D-PFG
Signal
48
-
N.U.
Not Used
Capstan Motor
49
IN C-FG
Rotation Detection
Pulse
50
-
AFG
GND
Servo Standard
51 OUT VRO
Voltage Output
Servo Standard
52
IN VRI
Voltage Input
53
-
AVss
AVSS (GND)
54
IN CTLA
CTL Amp. AC GND
55
-
AVDD
AVDD (AL+5V)
IN/
Playback/Record
56
CTL (+)
Control Signal (+)
OUT
IN/
Playback/Record
57
CTL (-)
Control Signal (-)
OUT
Amp. Output Control
58 OUT CTL
Signal for Test Point
HiFi/
Audio Mode Input
59
IN
NOR-IN
HiFi="L"/ Normal="H"
IN POWER-
P-ON+5V Power
60
SAF
Detection Input Signal
61
-
N.U.
Not Used
Tape End Position
62
IN END-S
Detect Signal
63
-
N.U.
Not Used
Video Envelope
64
IN V-ENV
Comparator Signal
Video Head Switching
PG-
65
IN
Pulse Signal Adjusted
DELAY
Voltage
66
IN KEY-2
A/D Key Data Signal 2
67
IN KEY-1
A/D Key Data Signal 1
Deck Mode Position
68
IN LD-SW
Detector Signal
Tape Start Position
69
IN ST-S
Detector Signal
VCR Mode LED
70 OUT VCR-IND
Signal Output
DVD Mode LED
71 OUT DVD-IND
Signal Output
72
-
N.U.
Not Used
POWER-
Power LED Signal
73 OUT
IND
Output
Active
Function
Level
H/L
PULSE
-
PULSE
-
-
-
-
-
-
-
-
-
A/D
A/D
-
A/D
-
A/D
A/D
A/D
A/D
A/D
A/D
H
H
-
H
1-15-2
Pin
IN/
Signal
No.
OUT
Name
74
-
N.U.
Not Used
N.U.
Not Used
75
-
76
-
N.U.
Not Used
N.U.
Not Used
77
-
Color Phase Rotary
78 OUT C-ROTA
Changeover Signal
Video Head Amp
79 OUT H-A-SW
Switching Pulse
H-A-
Head Amp
80
IN
COMP
Comparator Signal
Notes:
Abbreviation for Active Level:
PWM -----Pulse Wide Modulation
A/D--------Analog - Digital Converter
IC200 ( SUB MICRO CONTROLLER )
Pin
IN/
Signal
No.
OUT
Name
DVD-KEY-
1
IN
1
DVD-KEY-
2
IN
2
3
-
N.U.
4
IN
REMOTE
5
-
N.U.
6
-
N.U.
7
-
N.U.
8
OUT FL-STB
9
OUT FL-CLK
10
OUT FL-SDA
11
-
N.U.
12
OUT RW-BUSY For Flash Memory Writing
13
IN
RW-SCLK For Flash Memory Writing
14
-
N.U.
IN/
15
RW-SDA
OUT
16
IN
P-DOWN
17
-
N.U.
18
IN
RW-VPP
19
IN
RESET
Active
Function
Level
-
-
-
-
H/L
H/L
H/L
Name Function
DVD Key Data Input 1
DVD Key Data Input 2
Not Used
Remote Signal Input
Not Used
Not Used
Not Used
Serial Interface Strobe
Serial Clock
Serial Data
Not Used
Not Used
For Flash Memory Writing
Power Voltage Down
Detector Signal
Not Used
For Flash Memory Writing
Micro Controller Reset
Signal
E9400PIN

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