Ic Pin Function Descriptions - Sylvania 6427FF Service Manual

IC PIN FUNCTION DESCRIPTIONS

Comparison Chart of Models and Marks
Model
6427FF
EWF2705
IC111 (TV Micro Controller)
Pin
Mark Signal Name
No.
1 CNVSS
2 N.U.
3 N.U.
4 N.U.
5 GND
6 VCC
7 N.U.
8 FILT
9 HLF
10 VHOLD
11 CVIN
12 RESET
MCU RESET
13
OUT
14 Y-SW OUT
15 GND
16 3.58 X'TAL
17 C-APC
MCU 5.7REG
18
OUT
19 N.U.
20 CVBS IN 3
A V-IN
21
B N.U.
22 VCC
23 N.U.
24 CVBS IN2
A V-IN
25
B N.U.
26 CVBS IN1
A Y-IN
27
B N.U.
5.7V REG
28
OUT
Mark
A
B
Function
GND
Not Used
Not Used
Not Used
GND
ALL+5V
(GND)
FILT
Filter for CCD
VHOLD
Input for Video Signal
RESET
RESET Signal Output
Composite Signal Output
GND
3.58MHz Crystal
CHROMINANCE APC
Micro controller Control
Voltage Output
Not Used
Composite Signal Input 3
Cr Signal Input
Not Used
VCC
(GND)
Composite Signal Input 2
Cb Signal Input
Not Used
Composite Signal Input 1
Y Signal Input
Not Used
5.7V Output
Pin
Mark Signal Name
No.
29 C(Y/C) IN
30 Y(Y/C) IN
31 V REG VCC
32 FSC OUT
MONITOR
A
OUT
33
B N.U.
34 N.U.
35 N.U.
36 N.U.
37 V RAMP F/B
38 V RAMP OUT Vertical Output
39 V RAMP CAP V Ramp OSC Capacitor
8.7 VREG
40
OUT
41 N.U.
42 H VCO F/B
43 AFC FILT
44 GND
45 FBP IN
46 H-OUT
47 VCC
48 VCC
49 VCC
50 R OUT
51 G OUT
52 B OUT
53 ACL
54 N.U.
55 A-O-MUTE
56 SDA
57 A-MUTE
58 SCL
59 N.U.
60 N.U.
61 S-SW
62 VOLUME
63 INPUT0
11-1
Function
Chrominance Signal Input
Luminance Signal Input
DC 8.7V Input
Clock Output 3.58MHz
Monitor Out
Not Used
Not Used
Not Used
Not Used
V Ramp Feed Back
DC 8.7V Output
Not Used
H Vco Feed Back
Horizontal AFC Filter
GND
Flyback Pulse Input
H Pulse Output
Vcc
Vcc
Vcc
Red Output
Green Output
Blue Output
IB-Input
Not Used
Mute Signal of Audio
Output
I2C-BUS Controller
Interface (Data)
Audio Mute
I2C-BUS Controller
Interface (Clock)
(GND)
Not Used
Detecting S-VIDEO Jack
Connection
Volume
Input Select 0
L3800PIN