Hitachi ULTRAVISION L42S504, Service Manual

Page: 16 / 67

L42S504
16
Schematic Diagram
Main Board
756TQACBZK01502 `
3. Tuner
D3V3
IF_AGC
C219
22pF
C220
22pF
C269
1uF/16V
I2C1_SDA
I2C1_SCL
DEMOD_RSTN 8
IF_AINN
AF2
IF_AINP
AE2
SIF_AINN
AF4
IF_AGC
AF7
RF_AGC
AF8
DMOD_RST_N
AC8
MPEG_FAIL
AC7
PARAM0
AE7
SA_DATA
AC6
DEMOD_CLKO
AD8
SIF_AINP
AE4
IF_RBIAS
AD3
IF_VINBIAS
AD2
IF_VCM
AD1
IF_VREFN
AF1
IF_VREFP
AE1
IF_DVAL_GPIO
AA5
Demodulator
U401P
ZR39785HGCF
R210 NC/20K 1/10W 5%
C213 0.1uF 16V
C215 0.1uF 16V
R203
2K2 1/10W 5%
R204
2K2 1/10W 5%
R207 3K9 1/10W 1%
1 2 FB203 600 OHM
C217
10U 16V
C262 0.01uF
C206 NC
C268
22N 16V
D3V3
1 2 FB201 600 OHM
C203
0.1uF/16V
R211 2K2 1/10W 5%
C201
0.1uF/16V
11
13
C210
82pF
0402
21
3
16
17
4
7
5V :
BB=15mA(MAX)
+B=140mA(MAX)
VB=70mA(MAX)
1
18
ENV56S02D8F
8
12
0402
19
0402
15
5
20
6
9
10
0402
14
2
NC
1
BB
2
AGC
3
NC
5
BT Monitor
6
NC
8
NC
9
NC
10
NC
11
SCL
13
SDA
14
NC
15
IF AGC
16
+B
17
TH1
22
TH2
23
TH3
24
TH4
25
IFD-out1
19
IFD-out2
20
IF Monitor
21
TU201 TUNER
C207
10N 16V
C205 10N 16V
C221
1uF/16V
C218
0.1uF/16V
SIF_N
1
TP1
1
TP2
R288
100R 1/10W 1%
R209 4K7 1/10W 5%
R289
100R 1/10W 1%
IF_AINN
1 2
L201
0.22uH 5%
1 2
L203
0.22uH 5%
PARAM0
1
2
L202
0.15uH 5%
RF_AGC
C216 0.001uF
C209 0.001uF
OE2/GADR0_ALE
W22
STV1/GDAT0
Y22
OE1/GDAT1
Y23
CPV/GDAT2
Y24
STH2/GDAT3
Y25
STH1/GDAT4
Y26
TP/GDAT5
W25
CPV2/GDAT6
W24
RVS/GDAT7
W23
GOE_N
V23
GWE_N
V22
STV2/GCS_N0
V24
GPO/GADR1_CLE
U22
Guest Bus
U401H
ZR39785HGCF
IF_AGC
C202
1uF/16V
NC68
K22
No Connect Pins
U401L
ZR39785HGCF
IF_AINP
SIF_P
5VT
I2C1_SCL 5,7
R205 100R 1/10W 5%
R206 100R 1/10W 5%
I2C1_SDA 5,7
IF_AP
C211 0.1uF 16V
C212 0.1uF 16V
IF_AN
R208 33R 1/10W 5%