Haier HT-3718 Service Manual page 19

11.
Circuit Diagram
1 2
S O C K E T - 21 L ?
V I D E O i n
V I D E O out R i n
R 412 82
R 412 82
R 418
+5V C 404 68
22nF
R 417
10
D R 401 82
C 403
22nF
C 420
10uF
N 401
H E F4053
AV-IN
V2
C 499
C 411
22nF C 412
22nF 22nF
R2
C 498
22nF
L2
R 406 R 499
47K 47K C 401
470uF
SV H S- Y SV H S- C
SV H S- C
A V 1
X 105
S- V H S
R 415 R 416
82 82
D Z 203
U P C 574 R 206
10K / 3W
+110V
R 205 +8V
C 205
12k
10uF/ 50V
R 101 A G C R 441
U2 0 1
4K 7
TDQ C 101
A G C 6. 8K
4. 7uF C 103 C 201
R 102 R 202 R 201 V 403
100nF 100nF
C T uni ng C 1815
T U C 102 4K 7 10K 10K
0. 01uF V i deo O ut
2S C 1815
V 103
L A N
R 199 B and1
C 105
U /V 10K
10uF
R 198 B and2
C 106
H /L 10K L 101
10uF
10uH 0. 01uF +8V
R 112
C 115
+5V
10
B M
C 109 R 108 R 110 L 102 R 119 R 117
C 108
0. 01u C 199 4. 7K 180 4K 7 2. 2K
1uH
16V /100u
0. 01uF C 112
Z 201
C 110 0. 01uF
V 101
2S C 2216
IF
0. 01uF
V D 101
B A T 81 38M
R 107 R 111 R 118
2. 2K 22 3. 3K
K 7266
R 116 V 102
2S C 1815
56K
R 115
82K
V OL + S W 007
R 256
220
2S C 1815
R 008
V 252
V OL - S W 006
1. 8K R 268
1. 5K
R 007
C H+
S W 005
1. 2K
R 260
39 R 259
R 006 2. 2K
C H- S W 004
1k
R 009
V 255
+3. 3V
R 005 3. 3K 2S C 1815
R 261
M E N U S W 003
620 R 000
100
L 01 180 R 258
Ð ³ ² ¨ Ò Ö Ö Æ Æ ÷
4K 7
R 002
T V / A V S W 002
470 V D 001
B
S L P -177B
T P1 N 602
D B - 1. 3- 08 7805 +5V
220V
I n O ut
Gnd
C 600 C 602
5 0V 470uF
1 6V 100uF
!
E M01Z
V D 605
V D 60 1 V D 604 220V
+5V
220V
1N 4148
R 604
10K
V 602
R L P1
2SC 536 L K 1aF- 12V
R 603
V 601
ST A N D B Y 2SC 536
10K
V D 5 0 3 ~ V D 5 0 6
R M1 1 C
R T 5 0 1 !
X S 5 0 2 L 5 0 2
X P 5 0 2 MZ 7 3 -1 8
* 1
3 2
R 500B
N 501
R 5 0 5 470K
L F -U 1 6 -0 0 1
1 L 504
4
5 W 2 7 0 V FB
1 1 F/ B
R 500A
C 5 0 8 ~ C 5 1 1
! 2
470K
1 K V 1 0 0 0 P L 01 V C C SY N C
R 5 0 2
3 5
7 W 1 . 5
C 5 0 7
Ð ³ ² ¨ Ò Ö Ö Æ Æ ÷
A C 400V
! C 5 0 2 2 2 0 u / 4 0 0 V
0 .1 u / 2 5 0 V A C
A
R 578
R 515A
L 5 0 1 C 598 470 V D 596
33K I N 4148
392 R 517
D ? 7 3 5 5 0 4 C
600
R 511A
V D 520A V D 520
! C 5 0 1
D I O D E 33K B 1206 E R B 4304
0 .1 u / 2 5 0 V A C
473
S 5 0 1 C 514 C 513
47u
! K D C -A 0 4 -S
X P 5 0 1
!
!
R 5 0 1
F 5 0 1
0 .5 W 2 2 0 K
V D 5 0 1
4 A / 2 5 0 V
!
E R Z 1 4 V 4 7 1 K
1 2
3 4 5
C 406
X S3 0 6
1uF/ 16V 1 R
R 420 100K 2 L
V 401
C 1815
A L i n T ext A R i n C 405
C 407
10uF/ 16V
1uF/ 16V
R 421
G i n B i n A L out A R out 470
R 303
R 302
100
100
R 426
100K
R 410 82 R 411 82 R 408 R 409
47K 47K C 402 V 402
10uF/ 16V
C 1815
R 425
470
8V
R 419
+ C 415
10
22uF/ 16V
C 409
1uF/ 16V
R G B
SY S V I D E O / Y SY S
A G C
+5V
R 240
10K
R 236 R 241
100K 680
C 231
R 440
C 238
22nF
330pF
4K 7
C 237
C 239
1. 2nF
1. 0uF
C 236
C 235
C 232 R 239
10uF 6800pF
R 242 39K
100nF
3. 9K
+8V
R 265
47
C 250
47uF
L 250 R 250
8. 2uH 2S C 1815
C 246
V 250 1. 8K 22nF
R 252
C 240 R 266 R 247
R 245
Z 250 150 4. 7uF 100K 390
R 255 R 251 1. 8K C 247
X T 6. 5
100 180 100uF
C 242
Z 251 R 262
1. 0uF
X T 6. 0 +8V +8V
27K C 241
100nF
L 201
Z 252
L 252
C 229 10uH
X T 5. 5 6. 8uH
1nF
R 267
R 257 27K +8V
470 Z 255
X T 4. 5
R 253
V 256
2S C 1815
10K
V i deo O ut
!
V D 507
PC T 817C
R 571
R 591 127K
R 579
1. 5K C 571
R 577
R 572 104
39K V D 572 10K
1K
1N 4148 V 571
N 571
K A 431
K SC 815
R 573
V D 511 R 576
2. 49K
15K
B Y D 33D R 581
22K
+ R 521
C 522
2. 2K
1 00uF/ 35V
C 521
47 0pF/ 500V
!
V D 512
+24V
B Y D 33D
T 501
R 535
3 13
R 529
2.2/ 0. 33W
1. 5K
+
C 526
12
C 525 1 00uF/ 35V R 530
47 0pF/ 500V
10K
V 508 st andby
C 531 9
C 1815
222
14
7
R 536
V D 515
15
1/ 1W
B Y D 33D
1
10
C 536
+
47 0pF/ 500V C 537
R 5 9 8 4 70uF/ 35V
+ N 507
2 16 C 537
7805
4 70uF/ 25V
1 0 V 509
R 537 2SB 892
11 I n O ut
2. 2K
+ Gnd
C 547
1 00uF/ 16V
R 503 R 546
C 532
! 10K N 506
! 1. 5K
47 0pF/ 500V
R 5 2 8 R 5 2 9 V D 516
I n O ut
0 .5 W 8 . 2 M B Y V 95A
0 .5 W 8 . 2 M Gnd
V 508
7805
2SC 536
C 5 3 3 + C 535
A C 4 0 0 V 2 2 0 0 p
4 70uF/ 25V
!
3 4 5
6 7
C 331
R 331 4. 7k
C 330
R 329 4. 7k 10/16V
0. 01 R 324
4. 7k
C 326 0. 01 N3 0 1 LA4 28 5 /8 7 (R)
1 2 3 4 5 6 7 8 9 10 1 2 3
C 328
R 328
C 311 C 303
10k
10/16V 10/16V 0. 015
R 321 R 322 C 302
C 321
4. 7k 10k 0. 01
10/16V
R 320
680
R 304
4. 7k
R 312
+8V
+8V C 312 10k
V D 320 C 323
0. 01u
100/16V V D 321
C 324 1N 4148 V D 310
1N 4148
100/16V
C 329 C 325
1N 4148
2. 2/50V 0. 01
V 333
2S C 1815
V 332
R 311
2S C 1815 R 314
1k
10k
SW V O L 1 V O L 2
V D r v+ V D r v- V O L 2
B and2 B and1
+8V R 232
3. 3K
L 205
C 216
10uH
10uF
C 212
R 231 R 230
R 238 R 237
4. 7K 4. 7K
C 220
100 100
1uF 100uF
C 219 +8V
C 215
C 227 C 228
R 235 4. 7nF
1nF 1nF
15k
C 226 22nF
2. 2uF R 225
27K
C 230
3. 3uF C 225
C 222 C 221 C 218
22nF 2. 2nF 220nF 220nF
C 267
22nF
R 272
R 930 R 270 100 R 275 R 276 L 270
C 268
1. 5K 2. 2K 100 100 10uH
C 245 C 248 R 248 C 260
C 924
1. 0uF 1000pF 5. 6K 0. 1uF
0. 22uF
100uF
C 266 V D 203 V D 202 V D 201
1000pF L 260
R 249
1. 2K A udi o 2 10uH
1N 4148 1N 4148 1N 4148
C 275
47uF
+3. 3V
X S001
V D 910
1N 4148
C 262
C 291
4. 7uF
4. 7uF
C 925 X S5
0. 22uF R 931
C b 3. 3K
C r Y
R 932
St andby V D r v+
120K
R 918 1K
V D 908
1N 4148
R 917 D Z 901
680
B Z X 79C 15V
R 901
D Z 900
R 926 3. 9K
110V B Z X 79C 8V 2 4. 7K
C 959
R 803
4. 7uF
C 802
2. 2K
C 905 2. 2nF
22 0pF/ 500V
12. 5V
R 538 +24V
56/ 2W
R 966
10
R 541
R 540
1K
1K
+ R 975
V 541 C 950
100K
C 1815 R 964 R 967
V 950 10uF/ 16V
470K 1K R 977
V 540 2PA 1015
G nd 220K
C 1815
C 952
R 972 R 959
1 00uF/ 16V
+3. 3V V 951 10K 2. 2K
C 1815
10uF/ 50V
R 968 1. 5K
C 955
D Z 506 0. 1uF
R 969 R 970 R 971
B Z X 79C 2V 7 R 999 R 978
39K 820 270 1. 5K C 953
39K
G nd 0. 22uF
+5V - 1
R 539
C 957
0. 1uF
430
D Z 595 + C 538
B Z X 79C 5V 1
1 00uF/ 16V
+5V
+24V
R 907 270
2 T 901
C 901 V 902
+ H - D R I V E R
C 534
47uF/ 50V B U 2508D X
1 00uF/ 16V 5n6/ 2K V
+8V
+
C 902
470 0pF/ 500V
R 902
R 910
100 82
R 908 2. 2K 0. 03 3uF/ 630V
+ C 515 +16V
1 00uF/ 16V
V 901 C 910
B F422L 100 0pF/ 500V
R 905
100
6 7
19
Circuit Diagram
8 9 10
MA IN B O A RD
20V
C 307
N3 0 2 LA4 2 85 /8 7 (L) 0. 01u
C 306
4 5 6 7 8 9 10
2 5V /1000u
C 313
8 W /8O H M
0. 015 C 310
R 317
25V /470u
R 310 C 317
22
0. 1u
680 C 321
8 W /8O H M
X S3 0 2
25V /470u
R 327
C N 703
C 327
22
0. 1u 1
V D 312 X S3 0 2
C 315 1N 4148
50V /2. 2u 2
V D 311
1N 4148
3
C 318
16V /100u
C 316 C 314 4
0. 01u 16V /100u
R 332 +12V
10k
5
V 331 R 330
1
2S A 1015
10k
2
3
C 319
V D 331
C N 702
16V /100u
1N 4148
+5A N2 0 2
V O L 1
SY S AT2 4 C04 /0 8
R 209
100
R 228 R 218 R 210 A 0 V C C SB
3. 3K 47 4K 7
C 206
C 210 T E S T
A 1
10uF 0. 01uF
R 207
100
A 2 S C L
R 227 R 226
R 208
5. 6K 5. 6K
100
G N D S D A
+5V
C 208 C 207
C 209 56PF
56PF
R 221 R 220
27K 3. 3K
0. 022uF
R 222 R 219 R 217 R 215 R 216 R 211
1. 2K 1. 2K 1K 3. 3K 3. 3K 3. 3K
SA
St andby
N 201
T D A 9361
C P101 I R
+5A
C 132
10nF
G nd
Z 202 C 271
R 282
47
12MH z 22nF
A V 1
C 269 C 270
C 272
33pF 33pF
10uF R 212 R 213
V D 298 V D 299
3. 3K 3. 3K
1N 4148 1N 4148
L 271 R 299
10uH 3. 3K
+5V R 297
V D 297
10K 1N 4148
SW
V 299
2SC 1815
R 296
+8V
1K
R 925
5. 1K *
N 801 A B L
T D A 8357
R 802 2. 2K
R 804
C 801 680K
2. 2nF
Z D 802
C 807
B Z X 79C 12V
220nF
R 812 R 813
C 809
5. 6K 2. 7K R 811
C 808
1. 5 4 7nF/ 100V
C 805 C 803 C 880 0. 01uF
+
0. 01uF
2 20uF/ 25V
220nF R 809 R 810
3.3 0. 5W 270/ 2W
R 806
3 . 3 0. 5W
R 807
33/ 0. 5W
R 976
C 951 R 980 + C 806 2. 2/ 1W
6. 8K R 981
6. 8K
+ 6. 8K L 901
22uF/ 63V R 915
H - L I N E 1K 0. 5W
R P950
10K C 926
V 952 H . WI D T H 3 30n/ 500V
56K R 955 R 956
C 1815 R P951
2. 7K
47K 5. 6/ 1W
R 951
PI N C V 956 R 916
+
2PA 1015 100 2W
C 918
R 952
+ C 921
18K 3 90n/ 250V
R 979 1uF/ 160V
V 957
1K D 2012
R 950
5. 6K V D 950
C 956
1N 4148
47 0uF/ 6. 3V
L 905
6. 8mH
C 908
8n2/ 2K V
+110V
C 906
V D 912
B Y 228
L 902
C 913
600uH
C 958
0. 47uF
8 9 10
11 12
C 703
G T 701 1P
103
SC
G T 702 1P
FO
R 703
H V
1. 8K
R 701
1. 8K
C 707 C 708 C 709
R 702
391 391 391
1. 8K
N 701
!
TD A 6107Q
R 707 C R T
100
3. 0
1
R 708 R 704
100 3. 0 10M
2
R 709
100
3. 0
3
1
C 704
4 4. 7u
D Z 704 D Z 703 D Z 702
2
MT Z J9. 1B MT Z J9. 1B MT Z J9. 1B
6. 0
5 D Z 701
V D 701
MT Z J9. 1B
E R C 24- 06
178. 5
3
6
R 705 R 710
2. 4 100
111
PR O B E 3
7
R 726 R 712
68 100 116
8 PR O B E 2
R 711
C N 701 100
C 702 114
PR O B E 1
222
C 706 V D 702 V D 703 V D 704
E R B 4304 E R B 4304 E R B 4304
10u
R 727 33K
+
0. 1uF
R N 07
C N 06
10 C N 08
C N 07
R N 10
2. 2uF 22nF
390
R N 05 C N 05
0. 022uF
150K
N N 01
C N 03
V N 01
B F370
1nF Z N 01
k9261
R N 06
2. 7K
C N 09 2. 2uF
C N 15
R N 17 L N 02
8. 2pF
1. 8uH C N 11
2K
10uF
C N 12 R N 12
Z N 02 coi l
C N 10
6. 8
0. 022uF
C N 16
100pF
R N 16 R N 15 0. 022
22K 22K
R N 18
10
Z N 03
C N 22
24 . 576MH z C N 23 C N 19 0. 01uF
0. 47uF
0. 47uF
C N 18
C N 17
0. 01uF
L N 03
1uH 47uF
N N 02
T D A 9874A PS
C N 28
C N 26
1uF
0. 1uF L N 05
+
1uH
R N 19 R N 23
C N 31
100
8. 2K 0. 47uF
R N 22 C N 30
C N 29
R N 20 0. 47uF
100
0. 47uF
R N 25
100 3. 3
L 802
L 801
2uH 2uH
V
!
T 902 5
6 10
4
3
8
2 H
1
R 927
11
2. 2
5
X 902
R 806 43V
C O N 5
V D 905 G nd
B Y V 95B
14V 4
E H T
V D 906
B Y D 33G
3 12
Focus
+ +
R 801
C 916
33K
C 917 1 00uF/ 63V
9 13
G 2
2 20uF/ 25V
1
R 922
1K
7
2
V D 911
C 920 1N 4148
FB T 2 100nF
C O N 4 X 903
V D 907
B Y D 33J 4
7 3
R 912 R 911 + 2
R 920
6. 8 + 2 . 2/ 0. 5W 220K 1
C 909 C 915
1 0uF/ 160V 4.7uF/ 250V
C 912
47 0pF/ 500V
11 12
D
C
B
A