Philips 20PFL4122/93 Service Manual page 29

Scaler Board Schemtic Daigram-ITV I/F
1 2
Power for I-BOARD (Level 2)
A
CN7402
1
+12V_ITV
2
3
C7402
470uF 25V(NC)
63172 3P 2.5mm(NC)
B
Control I/F for I-BOARD (Level 2)
+5V_ITV
3,7 I2C_SCL
3,7 I2C_SDA
C
2nd Control I/F
D +5V_ITV
I2C_SCL
I2C_SDA
E
PORT for Level 1
R7410 100R
7 RXD1
R7411 100R
7 TXD1
F
G
H
1 2
3 4
S-10
Video I/F for I-BOARD (Level 2)
CN7401
FB7401
1
1 2 2
+5V_ITV
120R(NC)
3
4
C7401 C7403 5
0.1uF(NC) 0.1uF(NC)
63385 5P 2.0mm(NC)
+5V_ITV 1
600R(NC)
7 CVBSOut
CN7403
1
2
3
4
63384 4P 2.0MM(NC)
CVBS Sync Slicer (Level 2)
C7407
CN7404 100P(NC)
1
2
3
4
63384 4P 2.0MM(NC) CVBS_HSYNC
CVBS_VSYNC
+5V_STBY
TH7401
PTCR
CN7405
4
3
2
1
61264 4P 2.5mm
3 4
7.Circuit Diagrams and PWB Layouts
5 6 7
CVBS_TERR_OUT
R7402 100R(NC) CVBS_VSYNC
R7403 100R(NC) CVBS_HSYNC
R7404
75R(NC)
BC858CG(NC)
1
Q7401
FB7402
R7406 470R(NC)
2
R7405
75R(NC)
C7404 C7405 R7407
0.1uF(NC) 10K(NC)
10U 10V(NC)
2 Q7402
BC847C(NC)
R7408
R7401 0R(NC) 75R(NC)
C7406 10uF(NC) R7409
10K(NC)
+5V_ITV +5V_ITV
C7412
470N(NC)
R7417 470K(NC) R7416 10K(NC)
R7412 C7413
C7414 470N(NC)
120K 1%(NC)
2N2(NC)
+5V_ITV
C7410
47uF 25V(NC)
R7413 U7401
10K(NC) BA7046F(NC)
1 8
H. Osc. Res. Phase O/P
2 7 C7408
Hd O/P VCC
3 6 R7415 330R(NC)
SYNC O/P Video I/P
R7414 470K(NC)
4 5
Vd O/P GND
C7409
1uF(NC) 1N(NC)
5 6 7
8 9 10
CN7401 A5
CN7402 A1
CN7403 C2
CN7404 D2
CN7405 F3
C7401 A2
C7402 A2
C7403 A3
C7404 B5
C7405 B5
C7406 C5
C7407 D5
C7408 D7
C7409 E7
C7410 D7
C7411 D8
C7412 D7
C7413 D7
C7414 D6
FB7401 A2
FB7402 B5
FB7403 D7
Q7401 B7
Q7402 B6
R7401 B5
R7402 A5
R7403 A5
R7404 A7
R7405 B7
R7406 B6
R7407 B6
R7408 B7
R7409 C6
R7410 F2
R7411 F2
R7412 D5
R7413 D5
R7414 E6
R7415 D7
R7416 D6
R7417 D6
FB7403
TH7401 E3
120R(NC)
U7401 D5
ZD7401 F2
ZD7402 F2
ZD7403 F3
C7411
22N(NC)
CVBS_TERR_OUT
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL AS2 20PFL4122 MAIN BOARD
T2474-1-20PFL4122-0702 25 TPV MODEL E207C2NOCWPHNS
Key Component 10:ITV I/F PCB NAME 715T2474-1
Date Monday, February 26, 2007 Sheet 10 of 13
8 9 10
TPS 1.0A LA 29
11
A
B
C
D
E
F
G
H
Size C
Rev 1
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