Sharp LC-20AV1U Service Manual page 61

Pin Signal
No. Name
7 Vee
8 Vss
9 B
10 A
11 3X
12 0X
13 X-COM
14 1X
15 2X
16 Vdd
IC401 (BD9766FV-E2)
Pin Signal
No. Name
1 DUTY
2 BRT
3 BCT
4 RDIS
5 RT
6 SRT
7 CT
8 GND
9 FB1
10 IS1
11 VS1
12 FB2
13 IS2
14 VS2
15 FAIL
16 STB
17 COMP1
18 COMP2
19 REG
20 SS
Function
Not Used
Not Used
Switching Control
Switching Control
Audio (L ch) Input
Audio (L ch) Input
Audio (L ch) Output
Audio (L ch) Input
Audio (L ch) Input
Power Supply
Function
Control Switching Mode
Connect Charge and
Discharge Current Setting
Resistor
Connect Oscillating
Frequency Setting Capacitor
Connect Discharge Current
Setting Resistor
Connect Charge Current
Setting Resistor
Connect Charge and
Discharge Current Setting
Resistor
Connect Oscillating
Frequency Setting Capacitor
GND
Error Amplifier Output
Error Amplifier Input
Error Amplifier Input
Error Amplifier Output
Error Amplifier Input
Error Amplifier Input
Protect Signal Output
Switch Standby
Detect Reduced Voltage or
Overvoltage
Detect Reduced Voltage or
Overvoltage
Inside Regulator Output
Connect Slow Start Setting
Capacitor
Pin Signal
No. Name
21 SCP1
22 SCP2
23 P2
24 N2
25 PGND
26 N1
27 P1
28 Vcc
IC402/IC403 (BA10324AF-E2)
Pin Signal
No. Name
1 OUT1
2 -IN1
3 +IN1
4 Vcc
5 +IN2
6 -IN2
7 OUT2
8 OUT3
9 -IN3
10 +IN3
11 Vee
12 +IN4
13 -IN4
14 OUT4
11-3
Function
Connect Timer Latch Setting
Capacitor
Connect Timer Latch Setting
Capacitor
Output FET Drive Circuit
Output FET Drive Circuit
GND
Output FET Drive Circuit
Output FET Drive Circuit
Power Supply
Function
Signal Output
Signal Input
Signal Input
GND
Signal Input
Signal Input
Signal Output
Signal Output
Signal Input
Signal Input
GND
Signal Input
Signal Input
Signal Output
L0370PIN