Ic Pin Function Descriptions - Sharp LC-15AV1U Service Manual

IC PIN FUNCTION DESCRIPTIONS

IC11 (VIF/SIF)
Pin Signal
No. Name
1 Video out
2 Video in
3 Vcc
4 Video det out
5 APC
6 VCO_F/B
7 SIF in
8 SIF out
9 Audio out
Audio Level
10
Cont.
11 Ref Signal
12 Logic Vcc
13 AFT
14 RF AGC
15 GND
16 VIF in 1
17 VIF in 2
18 IF AGC1
19 IF AGC2
20 EQ AMP F/B
IC502 (VOLTAGE REGULATOR)
Pin Signal
No. Name
1 Vin
2 Vo
3 GND
4 O
IC503/IC504 (VOLTAGE REGULATOR)
Pin Signal
No. Name
1 Vin
2 Vo
3 GND
4 Vadj
Function
Video Output
Video det Input
Power Supply
Video det Output
APC Filter
VCO Feedback
SIF Input
SIF Output
Audio Output
AF Bypass
Standard Frequency Input
Power Supply
AFT Output
RF AGC Output
GND
IF Input
IF Input
IF AGC Filter
IF AGC Filter
Equalizer Feedback
Function
Input Power Supply
Output Power Supply
GND
Control ON/OFF
Function
Input Power Supply
Output Power Supply
GND
Control Output Voltage
IC505 (PST600L)
Pin Signal
No. Name
1 Vcc
2 GND
3 Vout
IC506 (NJM78L09A)
Pin Signal
No. Name
1 COMMON
2 INPUT
3 OUTPUT
IC601 (PHOTOCOUPLER )
Pin Signal
No. Name
1 Anode
2 Cathode
3 Emitter
4 Collector
IC603/IC604 (VOLTAGE REGULATOR)
Pin Signal
No. Name
1 INPUT
2 COMMON(GND) GND
3 OUTPUT
IC781 [TC4053BF(EL.N)]
Pin Signal
No. Name
1 1Y
2 0Y
3 1Z
4 Z-COM
5 0Z
6 INH
7 Vee
8 Vss
9 C
11-1
Function
Input Power Supply
GND
Output Power Supply
Function
GND
Input Power Supply
Output Power Supply
Function
Input Pulse
Input Monitor
Input Power Supply
Output Power Supply
Function
Input Power Supply
Output Power Supply
Function
Video Signal Input
Video Signal Input
Video Signal Input
Video Signal Output
Video Signal Input
GND
GND
GND
Switching Control
L0270PIN