
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
SY1
SY0
S C1
S C0
CVBS0
CVBS1
CVBS2
CVBS3
MPX1
MPX2
S C1
SY0
S C0
AVSC1
AVSY0
AVSC0
AVSY1
AVY1P
AVPB1N
Y1+
Y 1-
PB1+
PB1-
PR1+
PR1-
SO Y1
MPX2
PR1+
SO Y1
Y1+
PB1+
PR1-
Y 1-
PB1-
PR0-
SO Y0
PB0+
Y0+
PR0+
Y 0-
PB0-
VFE_GND1
AVSOY0
TU_AF
T U_SIF
AVCVBS1
CVBS2
CVBS1
AVCVBS2
AVSY1
AVY1P
AVPB1N
I R
VBLON
AD J_INV
SCART2-R
S C1_IN_R
SC1_IN_L
AV1-R
YPBPR1-L
YPBPR1-R
SCART2-L
SCART1-L
AV1-L
YPBPR1-R
GPIO7
GPIO8
S C1_IN_R
FRONT_A_L_IN
FRONT_A_R_IN
A UINR
AU INL
VGA-R
HDMI-R
HDMI-L
VGA-L
GPIO9
GPIO10
AVPR1P
AVPB1P
GPIO11
GPIO10
GPIO9
GPIO8
GPIO7
A UINR
AU INL
PHONE_A_D_O
PHONE_A_L_O
PHONE_A_R_O
SPK_R_OUT-
SP
SPK_L_OUT-
SP
8202UP3_1
+12V
S CL
SDA
8202UP3_4
8202UP3_4
8202UP3_5
GPIO19
GPIO15
GPIO16
GPIO13
GPIO14
GPIO15
GPIO16
GPIO19
8202UP3_1
8202UP3_5
LED_O
LED_G
GPIO13
GPIO20
GPIO29
LT DC_CLK
GPIO23
LTDC_ADDR
GPIO23
GPIO24
GPIO25
GPIO26
AOUT-L
AOUT-R
CVBS_OUT
VFE_GND1
SPDIF-OPTICAL
AVY 1N
SY1
PR0+
SO Y0
PB0-
Y0+
PR0-
Y 0-
PB0+
GPIO29
LTDC_DATA
PHONE_A_L_O
AVY 0N
SP
SPK_L_OUT-
I R
LTDC_INT
VBLON
AVPR0P
FRONT_A_L_IN
AD J_INV
SP
AVCVBS2
PHONE_A_R_O
AVPB0P
FRONT_A_R_IN
SPK_R_OUT-
PHONE_A_D_O
KPD-POWER
KPD-VOL-DOWN
AV_SY0
VCC
YPBPR1-L
SCART2-L
AVCVBS1
HDMI-L
CVBS_OUT
SCART1-L
AVPB0N
AVY 0N
AV1-L
AVPB0P
AVY 1N
VGA-L
HDMI-R
AVPR1P
SCART1-R
AVSC0
SW12V
AVPB0N
AVY0P
AVPR0N
AVPR1N
VGA-R
AVPR0N
AV1-R
AVPB1P
AVPR0P
SCART2-R
TU_SCL
TU_SDA
S CL
DV33B
T U_SIF
MPX1
TU_SDA
TU_SCL
SCART1-R
SC1_IN_L
CVBS3
GPIO24
AV_SY1
AVSC1
SCART_FB
SCARTSEL
SCT1_FS
SCL0
SCART_FB
SCT2_FS
SCARTSEL
GPIO26
GPIO25
GPIO31
SCT1_FS
GPIO32
SCT2_FS
GPIO11
AVPR1N
AOUT-L
AOUT-R
AVCVBS0
AVSC1
GPIO20
K PD-CH-DOWN
KPD-MENU
5V-T
CVBS0
AVCVBS0
SWSY0
SCARTSEL
AVSOY0
SWSY1
KPD-VOL-UP
KPD-CH-UP
KPD-SOURCE
SB5V
GPIO14
SCT_A_L
SCT_A_R
TU_AV1
TU_AF
TU_AV1
SDA
GPIO31
GPIO32
SCT_A_L
SCT_A_R
SWSY0
AVSY0
VEF_GND1
VEF_GND1
AVSY1
SWSY1
VEF_GND1
VEF_GND1
AVY0P
AV_SY1
AV_SY0
SW12V
+12V
SW12V
+12V
SB5V
DV33B
SB5V
VCC
AVV33
-5V1
VCC
DV33B
TU_VCC
DV33B
-5V2
VCC
VCC
-5V1
-5V2
5V-T
AVV50
5V-T
AVV50
SB5V
TU_VCC
-5V1
TU_VCC
AVV50
AVV50
AVV50
AVV50
AVV50
SB5V
AVV33
SB33
AVV50
AVV50
SY1
3
SY0
3
SC1
3
SC0
3
CVBS0
3
CVBS1
3
CVBS2
3
CVBS3
3
MPX2
3
MPX1
3
SOY1
3
Y1+
3
PB1-
3
PR1+
3
PB1+
3
Y1-
3
PR1-
3
PB0-
3
PB0+
3
Y0+
3
PR0-
3
Y0-
3
PR0+
3
SOY0
3
VFE_GND1
3,4
IR
3
VBLON
10
ADJ_INV
10
GPIO11
3
GPIO10
3
GPIO9
3
GPIO8
3
GPIO7
3
AUINR
11
AUINL
11
PHONE_A_L_O 11
PHONE_A_R_O 11
PHONE_A_D_O 12
SP
12
SPK_R_OUT-
12
SP
12
SPK_L_OUT-
12
8202UP3_1
3
SDA
3,8,10
SCL
3,8,10
8202UP3_4
3
8202UP3_5
3
GPIO13
3
GPIO14
3
GPIO15
3
GPIO16
3
GPIO19
3
GPIO20
3
GPIO23
3
GPIO24
3
GPIO25
3
GPIO26
3
AOUT-L
11
AOUT-R
11
CVBS_OUT
11
SPDIF-OPTICAL 8
GPIO29
3
SCL0
3,10
SCART_FB
3
GPIO31
3
GPIO32
3
SCT_A_L
11
SCT_A_R
11
Title
Size
Document Number
R e v
Date:
Sheet
o f
GF271-XP
C
AUDIO / VIDEO IN CIRCUIT
C
9
13
Thursday, August 10, 2006
TO MT8202
FROM Tuner
AV2
S-Video
OR AV3
AV4 YPbPr
AV5 YPbPr
Video1 IN Connector Audio IN Connector Audio OUT Connector
THIS PAGE NEARLY IC
AV1
TV
AV3
TU_VCC FOR TUNER POWER USE
N-MOSFET
N-MOSFET
ANLAOG TUNER
0801
0809
0801
A
B
A
B
U22
U23
1
1
AV
SCAET1
SCART2
YPbPr
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
VGA
DVI
FRONT
AUDIO OUT
X
X
X
X
X
X
HI---->SWSY1
LOW--->SWSY0
R426
4K7
J5
HEADER 9X2-2.0
2
4
6
8
10
12
14
16
18
1
3
5
7
9
11
13
15
17
R167
0R
+
EC30
33uF/16V
C292
330pF
C285
0.1uF
R181
NC/0
C326 10nF
R259
100R
U23
74HCT4052-SOP16
X0
12
X1
14
X2
15
X3
11
Y0
1
Y1
5
Y2
2
Y3
4
INH
6
A
10
B
9
X
13
Y
3
VDD
16
VSS
8
VEE
7
R202
2K4
R571
0R
R201
NC/0
R550
NC/75R
R191
2K4
C299 10nF
R542
NC/75R
R428
0R
C268 NC/10nF
L75
120-0805
+
CE2
NC/22uF/25V
C446
NC/330pF
+
EC34
47uF/25V
C278 2.2uF
R260
100R
C265 2.2uF
C252 2.2uF
U22
74HCT4052-SOP16
X0
12
X1
14
X2
15
X3
11
Y0
1
Y1
5
Y2
2
Y3
4
INH
6
A
10
B
9
X
13
Y
3
VDD
16
VSS
8
VEE
7
R238
0R
C401
NC/10uF/10V
R160
0R
C403
10uF/10V
R427
4K7
C319 47nF
R193
2K4
R187
NC/0
C306 10nF
R548
NC/75R
C318 47nF
R182
NC/0
C307 10nF
+
CE1
NC/22uF/25V
R204
0R
R224
0R
R239
56R
R244
68R
Q30
NC/MMBT3904
B
E
C
R421
4K7
C266 2.2uF
C259 2.2uF
L46
2.2uH
L0805
R246
0R
C444
NC/330pF
R556
NC/3K3
C263
15pF
R544
NC/75R
L70
120-0805
L53
2.2uH
L0805
R192
0R
C402
10uF/10V
R200
NC/0
R209
2K4
R194
2K4
R422
4K7
R256
0R
C447
NC/15pF
C290 47nF
+
EC31
47uF/25V
JP7
200PHD-10LT
1
2
3
4
5
6
7
8
9
10
JP5
HEADER 10X2-2.0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R206
39K
R253
100R
C309 10nF
L51
NC-0805
R543
NC/56R
R552
NC/75R
+
EC79
47uF/25V
C445
NC/15pF
J4
HEADER 7X2-2.0
2
4
6
8
10
12
14
1
3
5
7
9
11
13
C269 2.2uF
C260 2.2uF
R431
NC/0
C298 10nF
Q31
NC/MMBT3904
B
E
C
C257
330pF
L45
120-0805
R540
NC/93R
R557
NC/10K
C254
330pF
C400
NC/10uF/10V
C308 10nF
R242
0R
R541
NC/93R
R197
2K4
R225
0R
R245
0R
R211
2K4
C317 10nF
C293
330pF
R254
100R
R551
NC/75R
R174
0R
R143
0R
C442
0.1uF
R170
0R
R144
0R
R554
NC/3K3
R216
2K4
C275 2.2uF
C271
10nF
C261 2.2uF
R235
0R
R546
NC/10R
R425
4K7
C294 47nF
R257
68R
R549
NC/75R
R198
2K4
Q29
NC/MMBT3904
B
E
C
R189
10K
L76
120-0805
R210
0R
R214
2K4
R163
0R
C300 47nF
R572
0R
R185
NC/0
C291
330pF
R190
10K
C321 10nF
C316 10nF
C258
0.1uF
U44
IDTQS3VH257-SOP16
A0
2
A1
5
A2
11
A3
14
B0
3
B1
6
B2
10
B3
13
Y0
4
Y1
7
Y2
9
Y3
12
VCC
16
GND
8
S
1
E#
15
R430
0R
U35
NCP1729SN35T1
OUT
1
Vin
2
C-
3
GND
4
SD
5
C+
6
C270 2.2uF
C276 2.2uF
R247
100R
R258
68R
R237
18R
R166
0R
R196
2K4
C301 47nF
QF3
N-MOS 2N7002
1
3
2
L47
2.2uH
L0805
TP52
R153
0R
R147
0R
R218
2K4
R545
NC/56R
R555
NC/10K
QF4
N-MOS 2N7002
1
3
2
C274
NC/1.8pF
Q28
NC/MMBT3904
B
E
C
R573
0R
R186
NC/0
+
EC33
100uF/25V
R243
68R
C327 10nF
R240
0R
C398
10uF/10V
R215
0R
R199
2K4
R195
0R
U34
NC/NCP1729SN35T1
OUT
1
Vin
2
C-
3
GND
4
SD
5
C+
6
R429
NC/0
R424
4K7
R241
0R
C277 2.2uF
C264
15pF
R538
NC/10R
C253 2.2uF
R213
NC/0R
C311 47nF
R252
0R
R248
100R
C310 47nF
R219
2K4
C295 4700pF
C320 10nF
J3
D-SUB 37P MALE
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
C255
330pF
R249
68R
R553
NC/75R
R180
NC/0
C250 2.2uF
R570
0R
R503
0R
C397
NC/10uF/10V
R423
4K7
+
EC78
47uF/25V
R165
0R
R205
39K
R507
0R
R220
2K4
C262 2.2uF
R250
68R
C256
330pF
C296 4700pF
R188
NC/0
C443
0.1uF
R203
0R
R255
0R
R251
0R
R539
NC/10R
R221
2K4
C251 2.2uF
R547
NC/10R
Summary of Contents for LT3709S
Page 2: ...1 Service Manual LT3709S ...
Page 11: ...10 3 Front Panel Function Control Description Operation Adjust and Programming ...
Page 12: ...11 ...
Page 13: ...12 ...
Page 14: ...13 ...
Page 23: ...22 6 Exploded Diagram and Spare Parts List JL321 ...
Page 24: ...23 JL371 ...
Page 25: ...24 JL401 ...
Page 26: ...25 7 Block and Schematic Diagrams ...
Page 45: ...44 8 PCB Layout Diagram Main Board Component Side Top ...
Page 46: ...45 Main Board Component Side Bottom IO Board L1 component side ...
Page 48: ...47 IR LED Board Component Side Bottom AUX AV Board Component Side Top ...
Page 49: ...48 AUX AV Board Component Side Bottom D SUB 37 Pin Board Component Side Top ...