Ic Pin Function Descriptions - Philips DVDR3545V/37 Service Manual

< VCR Section >
IC1501
(SYSTEM CONTROL MICROPROCESSOR)
Pin IN/ Signal
No. OUT Name
P-DOWN Power Voltage Down Detector
1 IN
-H Signal
Ready/Busy Communication
READY/
2 Control with Main Micro
IN
BUSY
Controller
3 IN T-REEL Take Up Reel Rotation Signal
4 - NU Not Used
IN REMOTE Remote Signal Input
5
DISPLAY- FL Display Driver IC Enable
6 OUT
ENA Control Output Signal
DISPLAY- FL Display Driver IC Data
7 OUT
DATA Control Output Signal
DISPLAY- FL Display Driver IC Clock
8 OUT
CLK Control Output Signal
9 - NU Not Used
10 - NU Not Used
Communication of Clock with
11 OUT S-CLK
VCR Micro Controller
S-DATA- Communication of Data to
12 IN
IN VCR Micro Controller
S-DATA- Communication of Data from
13 OUT
OUT VCR Micro Controller
14 - TCLK Not Used
15 TDO Not Used
-
TDI Not Used
16 -
IN/ IIC-BUS
IIC BUS Serial Data
17
OUT SDA
IIC-BUS
18 OUT IIC BUS Serial Clock
SCL
19 OUT YCA-SCL YCA IC Serial Clock
20 OUT YCA-SDA YCA IC Serial Data
21 OUT YCA-CS YCA IC Chip Select
Recording Safety SW Detect
REC-
(With Record tab = "L"/ With
22 IN
SAF-SW
out Record tab = "H")
23 OUT RF-SW Video Head Switching Pulse
D-V
Dummy V-sync Output
24 OUT
SYNC
IN RESET Micro Controller Reset Signal
25
LM-FWD/ Loading Motor FWD/ REV
26 OUT
REV Output
27 OUT P-ON-L Power On Signal to Low
NU Not Used
28 -

IC PIN FUNCTION DESCRIPTIONS

Function
Pin IN/ Signal
No. OUT Name
29 OUT D-REC
Hi-Fi-H-
30 OUT
SW
VCR-
31 OUT AUDIO-
MUTE
32 OUT C-F/R
33 OUT C-CONT
34 OUT D-CONT
35 - NU
VDD
36 -
37 OUT OSCO
IN OSCI
38
- Vss
39
40 IN XI
41 OUT XO
IN SXI
42
43 OUT PWR-SW
SYS-
44 IN
RESET
REG-
45 OUT
CONT2
REG-
46 OUT
CONT1
VIDEO-
47 OUT
OUT
- Vss
48
49 IN VIDEO-IN Composite Video Signal Input
C-SYNC-
50 IN
IN
51 - VDD2
52 IN AFCC
53 OUT AFCLPF
VIDEO-
54 OUT
MUTE
OUTPUT-
55 OUT
SELECT
56 - NU
VIDEO-
57 OUT
SW3
1-17-1
Function
Delayed Record Signal
Hi-Fi Audio Head Switching
Pulse
VCR Audio Mute Control
Signal
Capstan Motor FWD/REV
Control Signal (FWD="L"/
REV="H")
Capstan Motor Control Signal
Drum Motor Control Signal
Not Used
Power Supply
Main Clock Output
14.31818MHz
Main Clock Input
14.31818MHz
Ground
Main Clock Input
Main Clock Output
Operation Mode Selecting
Input Signal
DVD Power Supply Control
Signal
System Reset Signal
(Reset="L")
Power Regulator Control
Signal
Power Regulator Control
Signal
Composite Video Signal
Output
VSS (Ground)
Composite Synchronized
Pulse
Power Supply
Low Path Filter Input Signal
For AFC
Low Path Filter Output Signal
For AFC
Video Mute Control Signal
Output Select (DVD="L"/
VCR="H")
Not Used
Video Input Select Signal 3
E9H90PIN