Circuit Diagram (Top Right) - Philips MRD200 Service Manual

CIRCUIT DIAGRAM ( Top Right )
R457 A4
R427 D4 R442 B3
R428 D4 R443 B3 R458 A4
R429 B1 R444 B4 R459 A4
R460 A4
R430 B1 R445 B4
R431 B1 R446 B4 R461 B5
R432 B1 R447 B3 R462 B5
R463 B5
R433 B1 R448 B3
R434 B2 R449 B4 R464 B5
R435 A1 R450 B4 R466 A5
R467 A5
R436 A1 R451 A4
R437 A1 R452 A4 R468 B6
R438 A1 R453 B3 R469 B6
R471 C7
R439 B4 R454 B3
R472 C7
R440 B4 R455 A4
R441 B3 R456 A4 R473 B7
6
RB102
CN101
TO/FROM MPEG DECOD BOARD TO/FROM TUNER BOARD
TU5V
TU12V
C4014
22PF
C4015
22PF
C4016
22PF
D513
1 1N4148
D512
1N4148
C472 561
R470
R471
1.5K 3.9K
6 0V
R468 1K
0V
5
8-3
R474 B6 R489 B7 R505 B8 R520 B10
R475 B6 R490 B7 R506 B8 R522 B11
R476 B6 R491 A7 R507 B8 R523 B10
R477 B7 R492 A6 R508 B8 R524 A10
R478 B7 R493 A6 R509 B8 R525 B10
R479 B7 R494 A6 R510 B8 R526 B10
R480 B6 R495 A7 R511 A8 R527 B10
R481 B6 R496 A7 R512 A8 R528 B10
R482 B6 R497 A7 R513 A8 R529 B10
R483 B7 R498 A6 R514 A8 R530 A9
R484 B7 R499 A6 R515 A8 R531 B10
R485 B7 R501 B8 R516 B10 R532 A11
R486 A6 R502 B8 R517 B10 R901 C10
R487 A6 R503 B8 R518 B10 R902 C10
R488 B6 R504 B8 R519 B10 R903 C11
7 8
CN201 CN301
TO/FROM VFD CONTROL BOARD TO/FROM PHONE BOARD
-12V +12V
D5V
C4013
22PF
C4012
22PF
C4011
22PF
MAIN-MUTE
IC501 TDA7269A
C473
R472
0V 7
IC409B
R904 C11 R919 A10 R4010 C4 R4046 D7
R905 D11 R920 A11 R4011 C5 R4100 A6
R906 C11 R925 D11 R4012 C4 R4101 A7
R907 D11 R926 D12 R4015 D2 R4102 A7
R908 C10 R927 D12 R4016 D2 R4103 A7
R909 D10 R928 A9 R4017 D2 R4104 A7
R910 D11 R4001 C1 R4018 D3 R4105 B7
R911 D11 R4002 C1 R4030 B5 R4106 B7
R912 D11 R4003 C3 R4031 B5 R4110 D1
R913 D11 R4004 C4 R4032 B5 R4111 D1
R914 D10 R4005 C4 R4041 D7 R4112 D2
R915 D10 R4006 C4 R4042 C7 R4113 D2
R916 A10 R4007 C4 R4043 D7 R4114 D1
R917 A10 R4008 C4 R4044 C7 R4115 D1
R918 A10 R4009 C5 R4045 D7 R4116 D1
9
TU5V
1.8V
0V
C941
220UF
!
5V
3 IC904 1 11.9V
D5V
7805
C931
C933 C932
0V
C942
220UF
220UF 104 220UF
A 5V 5V 3 IC903 1 11.9V
7805
!
C930 C929 C928
RB900 104 220UF 220U F
4.85V
1
0V
4.85V
2
0V
3
0V
4
A 9V
3V
5
0V
6
+12V
+12V 3 IC902 1 +19V
7812
!
1
2
3
C914 C912
4 104 220UF
CN906
0V
TO LOADER
SERVER BOARD
0V
C915 C913
!
104 220UF
IC901
3 2
7912 -19.5V
-12.1V
MAIN-MUTE
-12V
L501 20 uH
8-3
10 11
Q911
+5V TU12V +12V
Q912
0V 2SA719 12V
5V
R913
12V
2SC2001
22K
R915
10K
R910
12V 10K
C940
220UF Q910 0V
R914 C945
22K
R911
10K
! !
0V
TV-V
!
!
Q902
9.4V 10.5V
TIP42C
C923 D902
R907
223/100V
C921 223/100V
Q903
22K
!
1
9.9V
Q901
0V
C2001
TIP41C
DC12V
AC10.5V
6V
C922
C924
C937
223/ 1 00V
223/100V
0V R906
104
10K
!
R902 1 1/2W
+20V
FUSE RESISTOR
!
R904 270 2W
!
R901 1 1/2W
-20V
FUSE RESISTOR
R
10
12
D
CN904
!
1
2
1.5V
1.5V
3
4
5 23V
4
!
5
4 11V
3
2
15.5V
1 15.5V
CN903
C
1
2
0V
CN905