Toshiba 23HLV87 Circuit Diagrams - Page 16

Tuner Schematic Diagram

Get Toshiba 23HLV87 - 23inch LCD TV PDF manuals and user guides
UPC - 022265000397
View all Toshiba 23HLV87 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 16 highlights

A B C D E F G H TUNER SCHEMATIC DIAGRAM 8 (MAIN PCB) 8 U38 5V-IF POWER FOR TUNER 7 6 22 23 24 25 26 27 28 29 GND GND GND GND GND GND GND GND NC NC NC NC NC NC RF_AGC NC VT IF(+) IF(-) IF_AGC IF_TP SCL SDA GND TU 5V NC AFT SIF OUT CVBS OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 R363 1K 100n C352 R366 499 R365 R364 1K 1K RF_AGC IF+ C279 10n R367 220 IF- C280 10n R368 220 T_IF_AGC R369 1k T_SCL0 T_SDA0 C281 100n RF_AGC Tuner_+30V IFA #IFA IF_AGC IFA #IFA IF_AGC 5V_TU AFT SIF C284 10n R370 47R C285 0.1uF SIFP 1n C354 2 1 + C353 22uF/10V 5V8_DE/TU L62 10uH 5V_TU DD28 BA05 + EC1 47uF/10V C124 0.1uF C127 10UF 1 2 3 OUT GND IN 5V-IF + EC2 100uF/10V C275 C126 0.1uF 10UF 5V_AGC 5V-IF L64 10uH 5V_TU 1 C282 C286 470p 0.1U + C283 22uF/10V 2 7 6 R371 C287 DTVS205CH201 NC 2.2K 5V-IF R372 47R C288 0.1uF SIFM Layout Warning ! DA1 Q24 1 BAV99 LA1 LA2 12VA 3 MMBT3904 100uH 100uH C L65 L66 L67 Tuner_+30V Tuner_+40V 3 CA49 100nF/50V 5 SOT 23 2.2uH 3.3uH 2.2uH R373 47R C289 47nF TUNER-CVBS ATV-Vin+ RA1 1K 2 5 CA50 + CA51 B E R375 C290 47nF ATV-Vin- 47R LA3 1uF 10uF/16V 1 2 C291 C292 R374 + CA52 D15 100uH QA1 2N7002 R376 330p 330p 75 CA53 100nF/50V Zener/15V RA2 10uF/50V CA57 680K 1K CA55 CA56 DA3 100nF/50V 1uF/50V 10nF CA58 10nF UDZS30B D16 CA59 DA4 Zener/15V CA60 10nF MLL5232B/Zener/5.1V AFT R379 SAR2 T_AFT 4 100K 10nF 4 R382 100K C293 0.1uF T_SDA0 T_SCL0 T_SDA T_SCL 3 3 2 2 1 1 A B C D E F G H H-15 H-16

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
H-16
H-15
(MAIN PCB)
TUNER SCHEMATIC DIAGRAM
A
H
B
C
D
E
F
G
A
H
B
C
D
E
F
G
0
L
C
S
_
T
0
A
D
S
_
T
T
F
A
2
R
A
S
T
F
A
A
F
I
C
G
A
_
F
R
A
F
I
#
0
L
C
S
_
T
0
A
D
S
_
T
+
F
I
C
G
A
_
F
I
F
I
S
-
F
I
C
G
A
_
F
I
_
T
S
B
V
C
-
R
E
N
U
T
U
T
_
V
5
F
I
-
V
5
V
0
4
+
_
r
e
n
u
T
V
0
3
+
_
r
e
n
u
T
A
V
2
1
U
T
/
E
D
_
8
V
5
F
I
-
V
5
F
I
-
V
5
U
T
_
V
5
V
0
3
+
_
r
e
n
u
T
F
I
-
V
5
U
T
_
V
5
+
n
i
V
-
V
T
A
-
n
i
V
-
V
T
A
C
G
A
_
F
R
T
F
A
_
T
A
F
I
A
F
I
#
A
D
S
_
T
L
C
S
_
T
M
F
I
S
P
F
I
S
C
G
A
_
F
I
R
E
N
U
T
R
O
F
R
E
W
O
P
!
g
n
i
n
r
a
W
t
u
o
y
a
L
C
G
A
_
V
5
2
6
L
H
u
0
1
2
6
L
H
u
0
1
1
A
R
K
1
1
A
R
K
1
V
0
5
/
F
n
0
0
1
9
4
A
C
V
0
5
/
F
n
0
0
1
9
4
A
C
6
2
1
C
F
U
0
1
6
2
1
C
F
U
0
1
6
1
D
V
5
1
/
r
e
n
e
Z
6
1
D
V
5
1
/
r
e
n
e
Z
4
6
L
H
u
0
1
4
6
L
H
u
0
1
2
A
L
H
u
0
0
1
2
A
L
H
u
0
0
1
6
5
A
C
V
0
5
/
F
u
1
6
5
A
C
V
0
5
/
F
u
1
9
5
A
C
F
n
0
1
9
5
A
C
F
n
0
1
R366
499
R366
499
+
2
C
E
V
0
1
/
F
u
0
0
1
+
2
C
E
V
0
1
/
F
u
0
0
1
7
5
A
C
F
n
0
1
7
5
A
C
F
n
0
1
6
8
2
C
U
1
.
0
6
8
2
C
U
1
.
0
3
1
2
1
A
D
9
9
V
A
B
1
A
D
9
9
V
A
B
1
9
2
C
p
0
3
3
1
9
2
C
p
0
3
3
5
7
2
C
F
u
1
.
0
5
7
2
C
F
u
1
.
0
n
0
1
9
7
2
C
n
0
1
9
7
2
C
2
A
R
K
0
8
6
2
A
R
K
0
8
6
9
7
3
R
K
0
0
1
9
7
3
R
K
0
0
1
C
N
1
C
N
2
C
N
3
C
N
4
C
N
5
C
N
6
C
G
A
_
F
R
7
C
N
8
T
V
9
)
+
(
F
I
0
1
)
-
(
F
I
1
1
C
G
A
_
F
I
2
1
P
T
_
F
I
3
1
L
C
S
4
1
A
D
S
5
1
D
N
G
6
1
V
5
U
T
7
1
C
N
8
1
T
F
A
9
1
T
U
O
F
I
S
0
2
T
U
O
S
B
V
C
1
2
D
N
G
2
2
D
N
G
3
2
D
N
G
4
2
D
N
G
5
2
D
N
G
6
2
D
N
G
7
2
D
N
G
8
2
D
N
G
9
2
8
3
U
1
0
2
H
C
5
0
2
S
V
T
D
8
3
U
1
0
2
H
C
5
0
2
S
V
T
D
4
2
1
C
F
u
1
.
0
4
2
1
C
F
u
1
.
0
F
n
7
4
0
9
2
C
F
n
7
4
0
9
2
C
1
7
3
R
K
2
.
2
1
7
3
R
K
2
.
2
3
A
L
H
u
0
0
1
3
A
L
H
u
0
0
1
F
u
1
.
0
8
8
2
C
F
u
1
.
0
8
8
2
C
1
3
2
E
B
C
SOT
23
4
2
Q
4
0
9
3
T
B
M
M
E
B
C
SOT
23
4
2
Q
4
0
9
3
T
B
M
M
F
n
7
4
9
8
2
C
F
n
7
4
9
8
2
C
3
A
D
B
0
3
S
Z
D
U
3
A
D
B
0
3
S
Z
D
U
0
5
A
C
F
u
1
0
5
A
C
F
u
1
k
1
9
6
3
R
k
1
9
6
3
R
0
7
3
R
R
7
4
0
7
3
R
R
7
4
+
1
C
E
V
0
1
/
F
u
7
4
+
1
C
E
V
0
1
/
F
u
7
4
1
2
+
C353
22uF/10V
+
C353
22uF/10V
3
7
3
R
R
7
4
3
7
3
R
R
7
4
7
2
1
C
F
U
0
1
7
2
1
C
F
U
0
1
3
9
2
C
F
u
1
.
0
3
9
2
C
F
u
1
.
0
2
7
3
R
R
7
4
2
7
3
R
R
7
4
0
6
A
C
F
n
0
1
0
6
A
C
F
n
0
1
1
A
Q
2
0
0
7
N
2
1
A
Q
2
0
0
7
N
2
n
0
1
4
8
2
C
n
0
1
4
8
2
C
6
6
L
H
u
3
.
3
6
6
L
H
u
3
.
3
K
1
3
6
3
R
K
1
3
6
3
R
C354
1n
C354
1n
7
8
2
C
C
N
7
8
2
C
C
N
F
n
0
1
8
5
A
C
F
n
0
1
8
5
A
C
2
8
3
R
K
0
0
1
2
8
3
R
K
0
0
1
0
2
2
7
6
3
R
0
2
2
7
6
3
R
5
5
A
C
V
0
5
/
F
n
0
0
1
5
5
A
C
V
0
5
/
F
n
0
0
1
1
8
2
C
n
0
0
1
1
8
2
C
n
0
0
1
5
6
L
H
u
2
.
2
5
6
L
H
u
2
.
2
n
0
1
0
8
2
C
n
0
1
0
8
2
C
2
8
2
C
p
0
7
4
2
8
2
C
p
0
7
4
5
1
D
V
5
1
/
r
e
n
e
Z
5
1
D
V
5
1
/
r
e
n
e
Z
R364
1K
R364
1K
2
5
A
C
V
0
5
/
F
n
0
0
1
2
5
A
C
V
0
5
/
F
n
0
0
1
6
7
3
R
K
1
6
7
3
R
K
1
1
A
L
H
u
0
0
1
1
A
L
H
u
0
0
1
C352
100n
C352
100n
+
3
5
A
C
V
0
5
/
F
u
0
1
+
3
5
A
C
V
0
5
/
F
u
0
1
1
2
+
3
8
2
C
V
0
1
/
F
u
2
2
+
3
8
2
C
V
0
1
/
F
u
2
2
4
A
D
V
1
.
5
/
r
e
n
e
Z
/
B
2
3
2
5
L
L
M
4
A
D
V
1
.
5
/
r
e
n
e
Z
/
B
2
3
2
5
L
L
M
0
2
2
8
6
3
R
0
2
2
8
6
3
R
2
9
2
C
p
0
3
3
2
9
2
C
p
0
3
3
F
u
1
.
0
5
8
2
C
F
u
1
.
0
5
8
2
C
+
1
5
A
C
V
6
1
/
F
u
0
1
+
1
5
A
C
V
6
1
/
F
u
0
1
5
7
3
R
R
7
4
5
7
3
R
R
7
4
4
7
3
R
5
7
4
7
3
R
5
7
7
6
L
H
u
2
.
2
7
6
L
H
u
2
.
2
R365
1K
R365
1K
3
2
1
IN
GND
OUT
8
2
D
D
5
0
A
B
IN
GND
OUT
8
2
D
D
5
0
A
B