LC-52X20E (serv.man5). Major IC Informations - Sharp TV Service Manual (repair manual). Page 5

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LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 5
2. Detailed ICs Information
2.1. IC402 (VHiBD9305AF-1Y)
2.1.1 Pin Connections and short description
2.2. IC506 (VHiMM3151XQ-1Q)
2.2.1 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
RT
Timing resistor external terminal
2
CT
Timing capacitor external terminal
3
ENB
I
Control input terminal
4
GD
O
Gate drive output terminal
5
VCC
Power terminal
6
GND
Ground terminal
7
COMP
O
Error amplifier output terminal
8
FB
I
Error amplifier inversion input terminal
Pin No.
Pin Name
I/O
Pin Function
69
C1
I
Chroma signal input
75
C2
I
1
C3
I
7
C4
I
70
S1
I
The terminal which detects the connection state of S-connector.
76
S2
I
2
S3
I
65
V1
I
Composite signal input.
71
V2
I
77
V3
I
3
V4
I
9
V5
I
15
V6
I
68
S2-1
I
The terminal which detects the aspect ratio information of S-connector.
74
S2-2
I
80
S2-3/ FS3
I
The terminal which detects the aspect ratio information of S-connector, or which detects 
the voltage of FS pin of a scart connector.
67
Y1
I
Luminance signal input.
73
Y2
I
79
Y3
I
5
Y4
I
14
ADR
I
Slave address select pin.
16
BIAS
I
BIAS
32
L13
I
The terminal which detects the number of scanning lines information on D-connector.
20
L11/ FS1
I
The terminal which detects the number of scanning lines information on D-connector, or 
which detects the voltage of FS pin of a scart connector.
26
L12/ FS2
I
21
CY1
I
Component Y-signal input.
27
CY2
I
33
CY3
I
22
L21
I
The terminal which detects the I/P information of D-connector.
28
L22
I
34
L23
I
24
L31
I
The terminal which detects the aspect ratio information of D-connector.
30
L32
I
36
L33
I
23
PB1
I
Colour difference PB-signal input.
29
PB2
I
35
PB3
I
25
PR1
I
Colour difference PR-signal input.
31
PR2
I
37
PR3
I
38
SW1
I
The terminal which detects the connection state of D-connector.
40
SW2
I
42
SW3
I
45
SDA
I/O
Data I/O of I2C bus
46
SCL
I
Clock input of I2C bus
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