Haier HL37B - 37" LCD TV, Service Manual

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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
MAIN3560_OUT_Y
VDAC_RBIAS
VDAC3_HSYNC
VDAC1_Y
VDAC2_PB
VDAC0_PR
A
A
A5.0V
A
A
A
A
A
A
A
VDAC_AVDD3P3 (14)
AUD-REF (9)
MAIN3560_OUT_Y (5)
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7 18 Tuesday, November 07, 2006
Title
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7 18 Tuesday, November 07, 2006
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7 18 Tuesday, November 07, 2006
VDAC_AVDD33 needs to be very clean. If you use
switching supplies, consider using a small linear
regulator for this supply. (250 mA worst case)
Place 75 ohm
terminations <1"
from BCM3560
Route VDAC_AVDD33 as a wide trace or fill area on
the top layer of the PCB all the way to the connector
MAIN_OUT
R289
NC R289
NC
R250
560
R250
560
R284
NC R284
NC
+
C423
33uF
+
C423
33uF
5
6
7
8
4
+
-
V+
V-
U35B
LM358M
SO8
+
-
V+
V-
U35B
LM358M
SO8
GPIO_40/HSYNC
B16
GPIO_41/VSYNC
A16
VDAC0_0
A14
VDAC0_1
C14
VDAC0_2
D14
VDAC0_3
B14
VDAC_RBIAS
B15
Analog Video
Outputs
U22O
BCM3551KPB5G
BGA676_35X35
Analog Video
Outputs
U22O
BCM3551KPB5G
BGA676_35X35
R592
NC R592
NC
C418
220pF
C418
220pF
1
2
4
3
5
6
7
8
MH3
4-40X3/4in-SCREW (DNI)
MH3
4-40X3/4in-SCREW (DNI)
3
2
1
8
4
+
-
V+
V-
U35A
LM358M
SO8
+
-
V+
V-
U35A
LM358M
SO8
R298
75 R298
75
L41 2.2uH L41 2.2uH
+
C173
100uF
10V
+
C173
100uF
10V
R573
2.2K R573
2.2K
C460
33pF
C460
33pF
C415
220pF
C415
220pF
R583
2.2K R583
2.2K
L118 MPZ2012S221A L118 MPZ2012S221A
R301
NC R301
NC
+ C139
47uF
10V
+ C139
47uF
10V
R283
0-NC R283
0-NC
C461
33pF
C461
33pF
R304
NC R304
NC
R290
75 R290
75