Ic Pin Function - Sylvania SRT2232S Service Manual

IC333(TV Micro Computer)
Pin
Signal Name
No.
1 NU
2 NU
3 KEY-IN
4 AFT-IN
5 PROTECT 1
6 PROTECT 2
7 NU
8 RESET-IN
9 FILTER
10 NU
11 NU
12 RESET-OUT
13 V-CPU
14 VCC
15 NU
16 YNR-FILT
17 NU
18 ACL/ABL
19 +8V CTL
20 NU
21 VCC
22 R OUT
23 G OUT
24 B OUT
25 GND
26 V RAMP AGC
27 V OUT
28 V RAMP
29 H-VCC
30 AFC1
31 H OUT
32 NU
33 FBP-IN
34 H VCO REF
35 H-GND
IC PIN FUNCTIONS
Function
Not Used
Not Used
Key Input
AFT Input
Power Supply Protection
Power Supply Protection
Not Used
Reset Input
PLL Filter
Not Used
Not Used
Reset Output
5.6V
Standby VCC
Not Used
YNR Filter
Not Used
IB-Input
8.5V Vcc Output
Not Used
RGB VCC
Red Output
Green Output
Blue Output
Video/Chroma/Vertical GND
V Ramp Osc. Capacitor
Vertical Output
Ramp ALC Filter
Horizontal Vcc
Horizontal AFC Filter
Horizontal Output
Not Used
Flyback Pulse Input
H VCO lref
Horizontal GND
Pin
Signal Name
No.
36 NU
37 NU
38 NU
39 NU
40 FSC
41 BL-STRETCH
42 APC
43 3.58MHZ
44 VCC
45 NU
46 NU
47 +5V CTRL
48 C3
49 NU
50 V3
51 P-ON-H
52 NU
53 C-SYNC-OUT
54 NU
55 NU
56 DG-ON
57 1KHZ-CHK
58 S-SW CTRL
59 C-SYNC-IN
60 REMOCON
61 NU
62 VOLUME
63 NU
64 AGC
65 P-ON-H
66 NU
67 A-MUTE-H
68 INPUT-0
69 GND
70 SDA
71 SCL
10-1
Function
Not Used
Not Used
Not Used
Not Used
fsc(3.85MHz) Output
Black Stretch &
DC Rest Filter
Chroma APC Filter
3.58MHz Crystal
Video/Chroma/Vertical VCC
Not Used
Not Used
5.7V VCC Output
C-Chrpma Input (C3)
Not Used
Y-Chroma Input (y input, V3)
Power Output H
Not Used
Composite Sync Output
Not Used
Not Used
Degauss Output
Horizontal Output Check
S Control
Composit Sync Input
Remocon Signal Input
GND
Volume PWM Output
Not Used
AGC PWM Output
Power Output
Not Used
Audio Mute Output
Video Control
GND
Serial Data Line
Serial Clock Line 1
L6250PIN