Magnavox 19MDTR20 - Dvd-video Player, Руководство по обслуживанию

Страница: 248 / 399

1-15-1 T0102PIN
IC PIN FUNCTION DESCRIPTIONS
IC1201 (TV/VCR Micro Controller IC)
“H”
≥
4.5 V, “L”
≤
1.0 V
Pin
No. IN/
OUT
Signal
Name
Function
1 IN LD-SW Loading Switch Input
2 OUT DVD-LED DVD-LED Output
3 IN
P-SAFETY
2 Power Supply Failure
Detection 2
4 IN ST/SAP-IN
Tuner Stereo/Sap Detector
Signal Input
5 IN KEY0 Key 0 Input
6 IN KEY1 Key 1 Input
7 IN END-SENS End-Sensor
8 IN AFT AFT Input
9 IN ST-SENS Start-Sensor
10 IN V-ENV Video Envelope Input
11 OUT VOLUME Volume Adjustment Output
12 OUT SP-MUTE Speaker Mute Output
13 OUT DV-SYNC Artificial V-Sync Output
14 IN REMOTE Remote Signal Input
15 OUT ROTA
Color Phase Rotary
Changeover Signal
16 OUT V-H-SW
Video Head Amp Switching
Pulse
17 IN ENV-DET Envelope Comparator Signal
18 OUT RF-SW Video Head Switching Pulse
19 OUT Hi-Fi-H-SW
HiFi Audio Head Switching
Pulse
20 OUT D-PB-L Output in Playback
21 OUT REC-LED
Recording LED Control
Signal
22 IN
NORMAL-
H
Audio Mode Input Signal
23 OUT ACL-CONT ACL Control Signal
24 - NU Not Used
25 -
DVD-
REMOTE Remote Control Signal to
DVD
26 OUT
TV/VCR-
LED TV/VCR Mode LED Control
Signal
27 - NU Not Used
28 - NU Not Used
29 OUT D-REC-H Delayed Record Signal
30 - NU Not Used
31 OUT P-ON-H Power On Signal at High
32 - NU Not Used
33 IN
REC-
SAFETY Record Protection Tab
Detection
34 IN RESET
System Reset Signal (Reset
= “L”)
35 IN XC-IN Sub Clock 32 kHz
36 OUT XC-OUT Sub Clock 32 kHz
37 - TIMER+5V Vcc
38 IN X-IN Main Clock Input
39 OUT X-OUT Main Clock Output
40 - GND GND
41 OUT SPOT-KILL Counter-measure for Spot
42 IN
DVD-MAIN-
POWER Power On Signal to High for
DVD
43 IN CLKSEL Clock Select (GND)
44 OUT D-REC-H Delayed Record Signal
45 IN I2C-OPEN
White Balance Adjust Mode
Judgment
46 - GND GND
47 IN
DVD-
AUDIO-
MUTE
DVD Audio Mute Signal
48 OUT DVD-H DVD at High
49 - GND OSD GND
50 IN CS DVD Interface Chip Select
51 IN SCLK
DVD Interface
Communication Clock
52 IN SDATA DVD Interface Serial Data
53 - P-ON+5V OSD Vcc
54 - HLF HLF
55 IN V-HOLD VHOLD
56 IN CV-IN Video Signal Input
57 - GND GND
58 IN H-SYNC H-SYNC Input
59 IN V-SYNC V-SYNC Input
60 OUT OSD-BLK Output for Picture Cut off
61 - NU Not Used
62 OUT OSD-B Blue Output
63 OUT OSD-G Green Output
64 OUT OSD-R Red Output
65 OUT
AUDIO-
MUTE
Audio Mute Output
66 OUT C-F/R
Capstan Motor FWD/REV
Control Signal
67 OUT
D-REC-L/
PLAY-H
Recording/Playback Output
68 OUT YCA-SDA YCA IC Control Data
69 OUT YCA-CS YCA IC Control Chip Select
70 OUT YCA-SCL YCA IC Control Clock
Pin
No. IN/
OUT
Signal
Name
Function