Magnavox CT202MW8, Service Manual, Page: 74 / 89

1-15-1 P7752PIN
IC PIN FUNCTION DESCRIPTIONS
IC1201 (TV/VCR Micro Controller IC)
Pin
No.
Signal Name Function
1 LD-SW Loading Switch Input
2 DVD-LED DVD LED Control Output
3 P-SAFETY 2
Power Supply Failure
Detection 2
4 ST/SAP-IN
Tuner Stereo/Sap Detector
Signal Input
5 KEY-0 Key Input 0
6 KEY-1 Key Input 1
7 END-SENS End-Sensor
8 AFT AFT Voltage Input
9 ST-SENS Start-Sensor
10 V-ENV Video Envelope Input
11 VOLUME Volume Control Signal Output
12 SP-MUTE Speaker Mute Signal Output
13 DV-SYNC Artificial Vertical Sync Output
14 REMOTE Remote Control Signal Input
15 ROTA
Color Phase Rotary
Changeover Signal
16 V-H-SW
Video Head Amp Switching
Pulse
17 ENV-DET Envelope Comparator Signal
18 RF-SW Video Head Switching Pulse
19 Hi-Fi-H-SW
HiFi Audio Head Switching
Pulse
20
D-REC
/PB-H Delayed Record/Playback
Control Signal
21 REC-LED REC LED Control Signal
22 NORMAL-H Audio Mode Input Signal
23 NU Not Used
24 AUDIO-MUTE Audio Mute Signal Output
25 DVD-REMOTE
Remote Control Signal Output
to DVD
26 TV/VCR-LED TV/VCR LED Control Signal
27 NU Not Used
28 DTV-ON-H2 DTV On Signal 2 at High
29
D-REC
/PB-L Delayed Record/Playback
Control Signal
30 DTV-ON-H DTV On Signal at High
31 P-ON-H Power On Signal at High
32 BUS-CONT Bus Control
33 REC-SAFETY
Record Protection Tab
Detection
34 RESET
System Reset Signal (Reset =
“L”)
35 XC-IN Sub Clock (32kHz)
36 XC-OUT Sub Clock (32kHz)
37 TIMER+5V VCC
38 X-IN Main Clock (10.6MHz)
39 X-OUT Main Clock (10.6MHz)
40 GND GND
41 SPOT-KILL Counter Measure for Spot
42
DVD-MAIN-
POWER Power On Signal at High for
DVD
43 CLKSEL Clock Select (GND)
44 D-REC-H Delayed Record Control Signal
45 I2C-OPEN Chip Select
46 GND GND
47
DVD-AUDIO-
MUTE
DVD Audio Mute Signal
48 DVD-H DVD On Signal at High
49 GND GND
50 DVD-CS DVD Interface Chip Select
51 DVD-SCLK DVD Interface Serial Clock
52 DVD-SDATA DVD Interface Serial Data
53 P-ON+5V OSD VCC
54 HLF Horizontal Filter
55 V-HOLD Vertical Hold
56 CV-IN Composite Video Signal Input
57 GND GND
58 H-SYNC Horizontal Sync Input
59 V-SYNC Vertical Sync Input
60 OSD-BLK Output for Picture Cut off
61 NU Not Used
62 OSD-B Blue Signal Output
63 OSD-G Green Signal Output
64 OSD-R Red Signal Output
65 DTV-S-SOUT DTV Serial Data Output
66 DTV-S-SIN DTV Serial Data Input
67 DTV-S-SCLK DTV Serial Clock
68 YCA-SDA YCA Serial Data
69 YCA-CS YCA Chip Select
Pin
No.
Signal Name Function