Circuit Diagram (Top Left) - Philips LX3000D Service Manual

CIRCUIT DIAGRAM ( Top Left )
C401 A1 C416 A2 C431 D1 C446 D1 C461 D2
C402 A1 C471 A2 C432 D1 C447 C2 C462 D2
C403 A1 C418 A2 C433 D1 C448 C2 C463 D2
C404 A1 C419 A2 C434 D1 C449 C2 C464 D3
C405 A1 C420 C1 C435 D1 C450 B2 C465 D3
C406 A1 C421 C1 C436 D1 C451 B2 C466 D3
C407 B1 C422 C1 C437 C2 C452 C2 C467 D2
C408 A1 C423 C1 C438 C2 C453 C2 C468 D2
C409 A2 C424 C1 C439 C2 C454 C2 C469 D3
C410 A1 C425 C1 C440 D2 C455 C2 C470 D3
C411 A2 C426 C1 C441 D2 C456 C2 C471 C3
C412 A2 C427 D1 C442 D2 C457 C3 C472 B3
C413 A2 C428 D1 C443 D2 C458 C3 C473 B3
C414 A2 C429 D1 C444 D2 C459 D2 C474 B3
C415 A2 C430 D1 C445 D2 C460 D2 C475 B3
1
R4110 100
1
C499
104 R4111 100 R4111 R4111 R4111
R4112
2
+5V
100
3 C498
100U F F F F
R4113
GPIF32T I I I
10K
R4115 R4115 R4115 R4115 2SC 945
Q404
200 200
200 200
D401
1N4148
AUX R401 47K
A
C401
101
C402
R402 47K
101
TV TV
TV TV R403 47K
C403 C403 C403 C403
101 101 101 101
C404 C404 C404 C404
R404 47K
R404 R404 R404
101 101 101 101
R406 R406 R406 R406 10K 10K 10K 10K
R405 R405 470 470
R405 R405 470 470
C405 C405
C405 C405
LO LO LO LO
101 101 101 101
C406 C406 C406 C406
RO RO RO RO
101 101 101 101
R407 470 R407 470
R407 R407 470 470
R408 10K R408 R408 R408 10K 10K 10K
R4001 R4001 R4001 47K R4001
47K 47K 47K
C-P RE C-P RE C-P RE C-P RE
R4002 R4002 R4002 R4002 2K 2K 2K 2K
C4001 C4001 C4001 C4001
101 101 101 101
C407 C407 C407 C407
R409 2K 2K 2K 2K
R409 R409 R409
104 104 104 104
SUB-PRE - - -
R410 47K
DL-LINE
RB104
0V
1 DR-LINE
0V BUS 01
2
0V
3
DL 0.15V
4
DR 0.15V
5
0V
6
0.15V
DSL
B
7
DSR
0.15V
8
0V
9
DC 0.15V
10
D-SUB 0.15V
11
12 -12V
13 +12V
0V
14
0V
16
0V
15
14 -12V
13 +12V
0V
12
4.9V
11
0V P-SL
10
V-IN 5V
9
MAIN-MUTE MAIN-MUTE
MAIN-MUTE MAIN-MUTE 0V
8
P-SR 0V
7
P C
8-2
C476 C3 C491 D3 C508 D4 C524 C4 C922 B5
C477 C3 C492 D3 C509 D4 C525 C4 C923 A5
C901 D5
C478 C3 C493 D3 C510 D4 C924 B5
C902 D4
C479 C3 C494 D3 C511 D4 C925 B5
C903 D5
C480 C3 C495 D3 C512 C4 C926 B5
C904 D4
C481 C3 C496 D3 C513 C4 C927 B5
C905 D4
C482 C3 C498 A1 C514 C4 C928 B4
C906 D4
C483 C3 C499 A1 C515 C5 C929 B4
C907 D5
C484 C3 C501 C4 C516 C5 C930 B4
C910 B5
C485 C3 C502 C4 C517 C5 C931 A4
C911 B5
C486 C3 C503 C4 C518 C5 C932 A4
C912 B4
C487 C3 C504 C4 C519 C5 C933 A4
C913 B4
C488 C3 C505 C4 C520 C5 C937 B4
C914 B4
C489 D3 C506 C4 C521 C5 C938 A4
C915 B4
C490 D3 C507 C4 C523 C5 C940 A5
C921 A5
IC401 IC401 IC401 IC401 4052 4052 4052 4052
12
0V
X0
14 13 0V
0V
X1 X
0V 15
C412
X2
TU-L TU-L
TU-L TU-L 0V 11
X3
4.7UF
0V 1
Y0
0V 5 3 0V
Y1 Y
0V 2
Y2
TU-R TU-R TU-R TU-R
0V 4
Y3
16 0V R417
VDD
100K
0V 10
A
4.8V 9
B
4.8V 6 7
INH VEE
0V 8 -7.2V
GND
C416
4.7U F 4.7U F 4.7U F 4.7U F
C408 C409
47UF F F F 104
R423
100K
C410 C411 C411 C411 C411
47UF 104 104 104 104
IC413A IC413A IC413A IC413A
4558
4558
R4003 2.2K R4003 R4003 R4003 2.2K 2.2K 2.2K C4004 C4004 C4004 C4004
1
4.7UF
0
DL DL DL DL
DR DR DR DR
STR STR STR STR
STL STL
STL STL
62446/ 1035- C LK 62446/ 1035- C LK 62446/ 1035- C LK 62446/ 1035- C LK
62446/ 1035- D A 62446/ 1035- D A
62446/ 1035- D A 62446/ 1035- D A
C451 C451 C451 C451
C941 A4 C4015 A3 R407 A1 R421 A2 R436 D1
C942 A4 C4016 A3 R408 B1 R422 A2 R437 D1
C943 A5 C4021 C2 R409 B1 R423 A2 R438 D1
C4001 B1 C4022 C2 R410 B1 R424 A2 R439 C2
C4004 B2 C4023 C2 R411 A1 R425 A2 R440 C2
C4005 B2 C4024 C2 R412 A1 R426 A2 R441 C2
C4006 B2 C4030 C2 R413 A1 R427 A2 R442 C2
C4007 B2 C4031 C2 R414 A1 R428 A2 R443 C2
C4008 B2 C4032 C3 R415 A1 R429 C1 R444 C2
C4009 B2 R401 A1 R416 A1 R430 C1 R445 C2
C4010 B2 R402 A1 R417 A2 R431 C1 R446 C2
C4011 A3 R403 A1 R419 A2 R432 C1 R447 C2
C4012 A3 R404 A1 R418 A2 R433 C1 R448 C2
C4013 A3 R405 A1 R419 A2 R434 C1 R449 C2
C4014 A3 R406 A1 R420 A2 R435 D1 R450 C2
2
C415 104 C415 C415 C415 104 104 104 IC402 VCC
IC402B IC402B IC402B IC402B
R418 R418 10K R418 R418
0V 4558 4558
5 4558 4558
C414 C414 C414 C414
R422 4.7K R422
R422 R422
7
0V 6 0V
4.7U F 4.7U F 4.7U F 4.7U F
R421 12K
C413 47P
C419 104
IC402 VEE
I I I IC402A
R424 10K
0V 3 4558
C418
R428 4.7K
1
2
0V 0V
4.7UF
R427 12K
C417 47P
C4005 C4005
C4005 C4005
104 104 104 104
-12V
R4005 R4005 100 R4005 R4005 100 100 100
C4008 C4008 4.7U F C4008 C4008 4.7U F 4.7U F 4.7U F
4558
4558 0V 3
R4007 R4007 R4007 R4007
0V 2
0V
R4010 R4010 100 R4010 R4010
R4008 R4008
R4008 R4008
+12V
1.5K 1.5K 100K 100K 100K 100K
1.5K 1.5K
C4009 C4009 C4009 C4009
104 104 104 104
C4007 C4007 C4007 C4007 560P 560P 560P 560P
R4006 0 OHM
MAIN-MUTE MAIN-MUTE MAIN-MUTE MAIN-MUTE
R4004 R4004 22K R4004 R4004 22K 22K 22K
-12V
R4012 56k R4012 R4012 R4012 56k 56k 56k
R4011 R4011 10k R4011 R4011
JW401 JW401 JW401 JW4010 OHM 0 OHM 0 OHM 0 OHM
C450 C450 C450 C450
8-2
R453 C2 R468 C3 R483 C3 R498 D3
R514 D4
R454 C2 R469 C3 R484 C3 R499 D3
R515 D4
R455 C2 R470 B3 R485 C3 R501 C4
R516 C5
R456 D2 R471 B3 R486 C3 R502 C4
R517 C4
R457 D2 R472 C3 R487 C3 R503 C4
R518 C4
R458 D2 R473 B3 R488 C3 R504 C4
R519 C5
R459 D2 R474 C3 R489 C3 R505 C4
R520 C5
R460 D2 R475 C3 R490 C3 R506 C4
R522 C5
R461 C2 R476 C3 R491 C3 R507 C4
R523 C5
R462 C2 R477 C3 R492 D3 R508 C4
R524 C5
R463 C2 R478 C3 R493 D3 R509 C4
R525 C5
R464 C2 R479 C3 R494 D3 R510 C4
R526 C5
R465 C3 R480 C3 R495 D3 R511 D4
R527 C5
R466 D2 R481 C3 R496 D3 R512 D4
R528 C4
R467 D2 R482 C3 R497 D3 R513 D4
R529 C4
RB102 RB102 RB102 RB102
TO/FROM MPEG DEC TO/FROM MPEG DEC TO/FROM MPEG DECOD BOARD TO/FROM MPEG DEC
D5V
D513 D513 D513 D513
1N4148 1N4148
1N4148 1N4148
10k 10k 10k
R468 1K R468
R468 R468
R530 C4 R913 A5 R4005 B2
R531 C5 R914 A5 R4006 B2
R532 C5 R915 A5 R4007 B2
R901 B5 R916 A4 R4008 B2
R902 B5 R917 A4 R4009 B2
R903 B5 R918 A4 R4010 B2
R904 B5 R919 A4 R4011 B2
R905 A5 R920 D5 R4012 B2
R906 B5 R925 A1 R4015 A1
R907 A5 R926 A1 R4016 A1
R908 B5 R927 A1 R4017 A1
R909 A5 R4001 A1 R4018 A1
R910 A5 R4002 A1 R4021 B2
R911 A5 R4003 B2 R4022 C2
R912 A5 R4004 B2 R4023 B2
3
C C C CN101
TO/FROM TUNER BOARD FROM TO/ TO/ TO/ TO/
TU5V
TU12V
C4014 C4013 C4013 C4013 C4013
22PF 22PF 22PF 22PF
22PF 22PF 22PF 22PF
C4012 C4012 C4012 C4012
C4015 C4015 C4015 C4015
22PF 22PF 22PF 22PF 22PF 22PF 22PF 22PF
C4016 C4016 C4016 C4016 C4011 C4011 C4011 C4011
22PF 22PF 22PF 22PF
22PF 22PF 22PF 22PF
D512 D512 D512 D512
1N4148 1N4148 1N4148 1N4148
MAIN-MUTE MAIN-MUTE MAIN-MUTE MAIN-MUTE
C472 C472 C472 C472 561 561 561 561
R470 R470 R470 R470
R471 R471 R471 R471
1.5K 1.5K 1.5K 1.5K 2.7K 2.7K 2.7K 2.7K
6
0V
C473 C473
C473 C473
R4 R4 R4 R4
0V 7
1K
1K 1K
5 0V IC409B IC409B IC409B IC409B
1 1 1 1
4.7U F 4.7U F 4.7U F 4.7U F
4558 4558
4558 4558
+12V
R469 R469 R469 R469
R4105 R4105
C474 C474 104 104 R4105 R4105
C474 C474 104 104