Hitachi L32A403 - 31.51" LCD TV, Service Manual, Page: 31 / 79

L32A403
31
D3V3
A24V
Q605
NC
C641 0.22uF C643
NC/1uF
R672
0R05 1/10W 5%
C660
NC
0
R665
NC
C642 33NF50V
R648
100K 1/10W 5%
D602 LL4148
R-
+
C638
1000UF35V
R657
0 OHM 1/3W
GAIN0
L-
AUD_AMP_MUTE 8
U603
NC/AS431AN-E1
P12V
L
R644
100K 1/10W 5%
O=1.8mm
A24V
R667 NC
R632
NC
C636
0.1uF 50V
A24V P12V
C640
1uF
L+
AMP_LIN 11,13
R659
NC
P24V
GAIN0
AMP_BYPASS
R639
680R 1/10W 5%
A24V
R660
10K 1/10W 5%
GAIN1
R661
2K OHM 1/4W
C649 0.22uF
C648
1uF
0
R645
1K 1/10W 5%
GAIN0
Q602
MMBT3904
C630
1uF
AMP_LIN
+
C652
1000UF35V
R664
NC/0R05 1/10W 5%
D604
NC/LL4148
PD_MUTE
C654
0.22uF
GAIN1
16.2mm
U602
TPA3121D2PWPR
1
2
3
5
6
4
7
8
9
10
11
12
24
23
22
21
20
19
18
16
17
15
14
13
25
PVCCL
SD
PVCCL
LIN
RIN
MUTE
BYPASS
AGND
AGND
PVCCR
VCLAMP
PVCCR
PGNDL
PGNDL
LOUT
BSL
AVCC
AVCC
GAIN0
BSR
GAIN1
ROUT
PGNDR
PGNDR
TH
1
20
C659
NC
+5VSB
R643 NC
R638
NC
U601
AS431AN-E1
C657
0.1uF 50V
R673
NC
R+
26 6.2mm
A24V
D3V3
+ C634
470UF35V
VCC5D
A24V R651
10K 1/10W 5%
R
1
0
AUD_SHDN 8
R654
10K 1/10W 5%
R658
560R 1/10W 5%
AMP_SD
L602
22uH +-25%
R641
NC
C653
NC/1uF
R674
NC
R666 NC
R653
NC
R655
560R 1/10W 5%
R640
20K 1/10W 5%
AMP_BYPASS
L603
22uH +-25%
32
R670
NC
AMP_SD
GAIN1
R634
10K 1/10W 5%
D601
RB160M-60TE25
1 2
R647
NC
C644
0.22uF
CN606
CONN
1
2
3
4
+ C656
470UF35V
C650
1uF
Q604
MMBT3904
1
HEAT SINK
Q90G6119
5
L601 NC/33 OHM
FB610
NC/600 OHM
1 2
A_MUTE
AMP_RIN
R663
NC/0R05 1/10W 5%
R652
0 OHM 1/3W
For TPA3123
Q603
MMBT3904
R650
NC
A24V
C655
0.001uF
R637
NC
3mm
AMP_RIN 11,13
R671
0R05 1/10W 5%
FB609
NC/600 OHM
1 2
C658 NC 0
G
Custom
12 15 Thursday , February 12, 2009
715G3269
< 称爹 >
12-Audio Amplifier
OEM MODEL Size
Rev
Date
Sheet of
TPV MODEL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
A24V
4P S/T 2.5mm
33G3278 4D
R669
NC
R668 NC
36
D3V3
AUD_AMP_MUTE
+ C629
470UF35V
1
R646 10K 1/10W 5%
R636
100K 1/10W 5%
C651 1uF
A24V
R662 NC
PD_MUTE
AMP_SD
C646 33NF50V
AUD_SHDN
25mm
A24V
C633
1uF
C632
NC
GAIN(dB)
C631
0.1uF 50V
L606 NC/33 OHM
C645
0.001uF
C635
1uF
1
PD_MUTE 13
C637
0.1uF 50V
D603 LL4148
R656
2K OHM 1/4W
R642
10K 1/10W 5%
R649 0.5 OHM 2W
R635
51K 1/10W 5%