BenQ VL3735 Service Manual page 104

1.2 Graphic Port Input circuit
C525 0.047U K
3 COMP_B/PB
C526 0.047U K
3 COMP_G/Y
C528 1000P K
C530 0.047U K
3 COMP_R/PR
R424 0
8 SCL_CPU
R425 0
2,8,12 SDA_CPU
1. Mux (2 to 1) is a high bandwidth multiplexer (BA7657). The Mux can be selected DTV
(reserved) YCbCr or PC RGB signal by controlling PC_DTV_SEL signal. The output of Mux
will go to AD9883A and PW2300.
2. A/D-converter (AD9883A) is used for converter RGB or YPBPR analog signals to digital
signals (RGB 4:4:4) which provide 24 bit true color resolution.
3. HDMI PaneLink Receiver (SII9011) can be accepted DVI and HDMI signals. It supports
HDTV signals up to 720p/1080i/1080p resolutions.
4. The EDID/DDC EEPROMs (U2 & U7) are used to store the EDID/DDC data, included PC
and Video timings for HDMI/D-Sub input. The PC and HDMI video player will read the
EEPROM data via EDID link in the HDMI and D_sub connector.
A/D converter circuit
+3.3VPVDD_ADC
C522
PLL Loop Filter
82N K
R419 C523
2.7K
8200P K
R422 0
+3.3VD_ADC
C524
0.1U K
41
GND
42
VD
43
BAIN
44
GND
45
VD
46
VD
47
GND
48
GAIN
49
SOGIN
50 U59
GND
51 AD9883AKSTZ-140
VD
52
VD
53
GND
54
RAIN
55
A0
56
SCL
57
SDA
58
REF BY PASS
59
VD
60
GND
R427
6 GAFEOE
R428
ADVS
HDMI Input Circuit
R420 33
PC_VSO 3
R421 33
PC_HSO 3
IN0CST 6
R423 NC
IN0CMP 6
+3.3VDD_ADC
20 RN45 33
GND
19 ADBE0 5 4
B0
18 ADBE1 6 3
B1
ADBE2
17 7 2
B2
ADBE3
16 8 1
B3
ADBE4
15 5 4
B4
14 ADBE5 6 3
B5
13 ADBE6 7 2
B6
ADBE7
12 8 1
B7
11 RN46 33
VDD
10 RN47 33
GND
9 ADGE0 5 4
G0
8 ADGE1 6 3
G1
7 ADGE2 7 2
G2
ADGE3
6 8 1
G3
ADGE4
5 5 4
G4
ADGE5
4 6 3
G5
3 ADGE6 7 2
G6
ADGE7
2 8 1
G7
1
GND
RN48 33
RN49 33
ADRE0
5 4
ADRE1
6 3
ADRE2
7 2
ADRE3 8 1
ADRE4 5 4
ADRE5
6 3
ADRE6
7 2
ADRE7
8 1
RN50 33
+3.3VDD_ADC
U60
100 1 5
OE VCC
33 2
A
3 4
IN0SOG 2,6
GND Y
74LVC1G126GW
R429 (OPEN)
L165 Z80
IN0VS 2,6
104
IN0B[2..9]
IN0B[2..9] 2,6
IN0B2
IN0B3
IN0B4
IN0B5
IN0B6
IN0B7
IN0B8
IN0B9
IN0G[2..9]
IN0G[2..9] 2,6
IN0G2
IN0G3
IN0G4
IN0G5
IN0G6
IN0G7
IN0G8
IN0G9
IN0R[2..9]
IN0R[2..9] 2,6
IN0R2
IN0R3
IN0R4
IN0R5
IN0R6
IN0R7
IN0R8
IN0R9