Hitachi 32LD4550U Service Manual page 85

32"LCD TV
OSDA0
19 OSDA0
OSCL0
19 OSCL0
15 OSDA1
15 OSCL1
21 BL_DIM
20 OPWM1
13,20 OPWM2
20 MTK_IC_RESET
OXTALO
OXTALI
AVCC_SRV
AVDD33_XTAL
KEY 2 R441 0 OHM 1/10W
6 SCART2_FS_IN
KEY 1
6 SCART_FS_IN
PWRDET
AVDD33_REG
C_XREG
ORESET#
21 POWER_ON/OFF
+3V3SB
FB401
AVCC_SRV
BEAD
C463
1uF/16V
+3V3SB FB408
AVDD33_XTAL
BEAD
C467
1uF/16V
U403B
204
OSDA0
205 207
CI_PDD3 20
OSCL0 GPIO_3
63 208
CI_PDD4 20
OSDA1 GPIO_4
62 209
OSCL1 GPIO_5 CI_PDD5 20
191 59
CI_PDD6 20
OPWM0 GPIO_6
202 60
CI_PDD7 20
OPWM1 GPIO_7
203 210
OPWM2 GPIO_8 CI_POWE# 20
146 211
VCXO GPIO_9 CI_OEB 20
143 212
CI_ALE 20
XTALO GPIO_10
144 214
CI_CLE 20
XTALI GPIO_11
147 215
AVDD33_SRV GPIO_12 MT5133_RESET 19
145 216 R440
AVDD33_XTAL GPIO_13 SV-DECT
0 OHM 1/10W
152
ADIN4
151
ADIN3
150
ADIN2
149 92 STANDBY
ADIN1 OPCTRL0
148 91
LVDSVDD_EN 8
ADIN0 OPCTRL1
76
OPCTRL2 CI_INT
88 75
AMP_MUTE
AVDD33_REG OPCTRL3
87 90
BL_ON/OFF
C_XREG OPCTRL4
71 89 EDID_PRT
ORESET_ OPCTRL5
72
OPWRSB
+3V3SB
R443
MT5380GKU 4.7K OHM 1/10W
DV33
R447
10K OHM 1/10W
U401
R449 8
VCC
33 OHM 1/10W 7
WC
OSCL0 6
SCL
EDID_PRT R450 10K OHM 1/10W Q405 OSDA0 5
SDA
MMBT3904
M24C16
R452
10K OHM 1/10W
R469
NC\3K OHM 1/10W
DV33
C464
0.1UF16V
+3V3SB
FB409
AVDD33_REG
BEAD
C468 C469 C470
0.1UF16V
1uF/16V 0.1UF16V
DV10 DV33
+
R480 R437
1K OHM 1/10W
R438
PWRDET NC/220 OHM 1/10W
R439
D401 NC/47K OHM 1/10W
NC/LL4148
5
C_XREG R442 1 OHM +-5% 1/10W
20
C460
17
4.7uF/10V
21
+5VSB
R472
820 OHM 1% 1/10W
R473
U406
1.8K OHM 1% 1/10W
ORESET# 2
RESET
MAX809STRG
DV33
1 C461
NC
2 STANDBY R464
NC 0.22uF
3
NC
4
VSS
3.9K OHM 1/10W
T P V ( Top
絬 隔 瓜 絪 腹
Key Component
Date
84
+3V3SB
R435
R436
C401 NC/1K OHM 1/10W
NC/220uF/10V
ORESET# OXTALI 2
Q401
NC/MMBT3904
C457
10pF
R461 47K OHM 1/10W
+5V
+5VSB +5VSB
R476
R478
120 OHM 1/10W
10K OHM 1/10W
Q408
R477 10K OHM 1/10W
MMBT3906
Q407
47K OHM 1/10W
MMBT3904
+3V3SB
13 OIRI
C462
4.7uF/10V +3V3SB
C474
+3V3SB 100pF
R451 R455
3.9K OHM 1/10W
KEY 1 R456
0 OHM 1/10W
KEY 2 R457
0 OHM 1/10W
C465 C466
1000pF 1000pF
R458 R459
Victory Electronics Co . , Ltd. ) OEM MODEL
TPV MODEL
MT5335 Control/IR/LED/Key PCB NAME
715T3009
Friday , June 20, 2008 Sheet 10 of 21
Hitachi 32LD4550U
NC
X401
TXC
1 OXTALO
60MHz
C458 L401
10pF 0.82UH
C459
1000pF
+5VSB
R462
1K OHM 1/10W
Q406
MMBT3906
CN401
1
2
3
4
5
6
7
8
9
10
11
CONN
ZD403 ZD404
Size A3
Rev H
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