BBK LT2619SU Service Manual page 54

5
D
U1 U1 TUNER_IF TUNER_IF
L18 L18 BLM18PG181SN1 BLM18PG181SN1
+5VA
CA33 CA33 C140 C140
+ +
10UF/16V 10UF/16V
0.1uF 0.1uF
40V 33V
R237 R237
1K 1K D56 D56
R240 R240
C146 C146 C147 C147
C
0.1uF 0.1uF 0.1uF 0.1uF
100K 100K C33V1 C33V1
C149 C149
1
47nF 47nF
3
2
D57 D57
BAV99 BAV99 C150 C150
C191 C191 1nF 1nF
+ + C155 C155 C151 C151
2.2uF/50V 2.2uF/50V 100pF 100pF
820pF 820pF
+5V_all
+5VA
B
NC/BLM31PG121SN1 NC/BLM31PG121SN1
L30 L30
CA59 CA59
C197 C197
+ +
100uF/16V 100uF/16V 0.1uF 0.1uF
L25 L25
0 0
TV1-V
R256 R256
C163 C163 C164 C164 75 75
NC/330pF NC/330pF NC/330pF NC/330pF
A
5
4
C133 C133
IF_TV
0 0
AGND
R224 R224 R225 R225
NC/75 NC/75 NC/1.2K NC/1.2K
IF_TV
R233 R233 0 0 IF-AGC
R234 R234 10 10 SDA_EXT
SCL_EXT
R235 10 R235 10
C143 C143
C190 C190 C144 C144
+ + 22pF 22pF 22pF 22pF
2.2uF/50V 2.2uF/50V
L21 L21 +12V_all
L20 L20 BLM18PG181SN1 BLM18PG181SN1
100uH 100uH
V21 V21
R243 R243
100K 100K
1
2N7002 2N7002
+ +
C152 C152 CA37 CA37
C153 C153 47uF/16V 47uF/16V
NC NC 0.1uF 0.1uF
+12V_all
78M05_1 78M05_1
R294 R294 N18 N18
20/2W 20/2W +5VA
1 2
IN OUT
CA60 CA60
+ +
100uF/16V 100uF/16V
R252 R252
1K 1K
R255 R255
10 10
TV1-Vin+
TV1-Vin+
SIFPOUT C165 C165 10nF 10nF
R258 R258
47 47
TV1-Vin-
R259 R259
TV1-Vin-
1K 1K
4
3
U23 PIN2 connected to PIN1 B/G,DK,I,L
U23 PIN2 connected to GND L'
+5VA
R219 R219 R220 R220 R221 R221
4.7K 4.7K
4.7K 4.7K 4.7K 4.7K
D53 D53 1N4148 1N4148
V19 V19
R227 R227 10K 10K
1
C134 C134
3904 3904 R228 R228
R229 R229 10nF 10nF
NC NC
0 0
1N4148 1N4148
D54 D54 N16 N16
IN
1 OUT2 5
SAW SAW
C142 C142
D55 D55 1N4148 1N4148
2 4
ING OUT1
R238 R238 R239 R239
10nF 10nF
N9455 N9455
4.7K 4.7K NC NC
+5VA
R309 R309
R308 R308
N35 N35
C148 C148
10nF 10nF 6.8K/8.2K 6.8K/8.2K 2.2K/6.8K 2.2K/6.8K
IN
1 OUT2 5
SAW SAW
R242 R242 L22 L22
D63 D63
2 4
NC NC NC NC IN4148 IN4148 ING OUT1
N6274 N6274 C154 C154
V38 V38 R246 R246
R306 R306 100 100
1
R307 R307 5.6K 5.6K
R305 R305
3904 3904
C200 C200
10nF 10nF 4.7K 4.7K
NC NC
+5VA
TV R318 R318
L24 L24 +5VA
BLM18PG181SN1 BLM18PG181SN1
C162 C162
0.1uF 0.1uF
R253 R253
10 10
AGND
V23 V23
1
3904 3904 C166 C166
R257 R257 0 0 0.1uF 0.1uF
TV-SIFP
C167 C167 R260 R260
820 820
22pF 22pF
3
2
I2C ADDRESS(R263 NC):
READ is 0X87
+5VA
WRITE is 0X86
R222 R222
22K 22K
Z3 Z3
4MHz 4MHz
C136 C136
R230 R230 C135 C135 R232 R232
0.1uF 0.1uF 100K 100K
330 330 1.5nF 1.5nF
C138 C138 C139 C139 C141 C141 R231 R231
22K 22K
220nF 220nF 470nF 470nF 22pF 22pF
TV
R236 R236
1k 1k
V20 V20
1
3904 3904
N17 N17
TDA9885&6 TDA9885&6
C158 C158 C159 C159 R248 R248
C156 C156 C157 C157 R247 R247
10nF 10nF
10nF 10nF 470nF 470nF
NC(2K) NC(2K)
390pF 390pF 1nF 1nF 220 220
5V-OUT
Q22 Q22 C161 C161
1k 1k 0.1uF 0.1uF
1
TV R372 R372
AGND
3904 3904 R320 R320 SCART_VOUT
R319 R319 51 51
SCART_VOUT
510 510
AGND
Title Title Title
TUNER TUNER TUNER
Size Size Size Document Number Document Number Document Number
B B B MST9X88L MST9X88L MST9X88L
Date: Date: Date:
2
1
R223 R223
22K 22K
IF-AGC
CA32 CA32
C137 C137
+ +
0.1uF 0.1uF 47UF/16V 47UF/16V
L19 L19
5V-OUT +5VA
BLM18PG181SN1 BLM18PG181SN1
CA34 CA34
+ +
47uF/16V 47uF/16V
AGND
TV1-V
R241 R241
75 75
R244 R244 100 100 SCL_EXT
SCL_EXT 2
R245 R245 100 100 SDA_EXT
SDA_EXT 2
TV1-L/R
SIFPOUT
C160 C160 TV-SIFM
TV-SIFM
R249 100 R249 100 0.1uF 0.1uF
5V-OUT
Q23 Q23 C211 C211
1k 1k 0.1uF 0.1uF
1
AGND
3904 3904 R373 R373 SCART2_VOUT
SCART2_VOUT
R374 R374 51 51
510 510
AGND
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Rev Rev Rev
Saturday, July 12, 2008 Saturday, July 12, 2008 Saturday, July 12, 2008 Sheet Sheet Sheet 7 7 7 of of of 19 19 19
1
D
C
B
A
01A 01A 01A