Read Sharp LC-46XD1E (serv.man7) Service Manual online
LC-46/52XD1E-RU
7 – 17
11. IC301/302: VHITDA8931T-1
SOUND AMP
12. IC705: VHIRM4020++-1
Switching Regurator
13. IC704: VHIRM4040++-1
Switching Regurator
14. IC701: VHIFA5501AN-1Y
POWER FACTOR CONTROL
Pin No.
Pin Name
I/O
Pin Function
1
VSSD
-
negative digital supply voltage; heat spreader
2
VSSA
-
Negative analogue supply voltage.
3
INN
I
inverting input.
4
INP
I
non inverting input.
5
VDDA
-
positive analog supply voltage.
6
POWERUP
I
power-up input.
7
ENABLE
I
enable input.
8
DIAG
O
diagnostic output.
9
CGND
-
control ground; reference ground for pins POWERUP, ENABLE and DIAG.
10
VSSD
-
negative digital supply voltage; heat spreader.
11
VSSD
-
negative digital supply voltage; heat spreader.
12
OVP
I
overvoltage protection reference input.
13
HVP
O
half supply voltage output for charging SE capacitor.
14
STABI
I
decoupling of internal stabilizer.
15
VSSP
-
negative power supply voltage.
16
OUT
O
PWM output.
17
BOOT
I
bootstrap capacitor connection.
18
VDDP
-
positive power supply voltage.
19
HVPI
I
half supply voltage output for reference voltage of input circuitry.
20
VSSD
-
negative digital supply voltage; heat spreader.
Pin No.
Pin Name
I/O
Pin Function
1
Z/C
I
Zero Current Detection Terminal.
2
F/B
I
Feed Back Terminal.
3
GND
-
Ground Terminal.
4
VCC
-
VCC Terminal.
5
Emitter/OCL
O
Emitter/OCL Terminal.
7
VIN
I
VIN Terminal.
8
Collector
I
Collector Terminal.
Pin No.
Pin Name
I/O
Pin Function
1
Z/C
I
Zero Current Detection Terminal.
2
F/B
I
Feed Back Terminal.
3
GND
-
Ground Terminal.
4
VCC
-
VCC Terminal.
5
Emitter/OCL
O
Emitter/OCL Terminal.
7
VIN
I
VIN Terminal.
8
Collector
I
Collector Terminal.
Pin No.
Pin Name
I/O
Pin Function
1
FB
I
Input terminal of converter out put valtage.
2
COMP
O
Output terminal of error margin amplifier.
3
MUL
I
Input termianl of sine wave AC power wave form.
4
IS
I
Input terminal to detect current of MOSFET.
5
ZCD
I
Input termial to detect current of inductor returning to 0.
6
GND
-
Power supply ground terminal.
7
OUT
O
Output terminal to drive MOS FET directry.
8
VCC
-
Power supply input terminal to operate IC.
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