Philips HTS3551, Service Manual

Page: 37 / 43

9 - 2 9 - 2
CIRCUIT DIAGRAM
CN701 A1 LD701 A1 Q701 A1 Q702 A2 R701 A1 R702 A1 R703 A1 R704 A2 R705 A2 R707 A2 R708 A2 R709 A1 R710 A1 R711 A1 TA701 A1 TA702 A1 TA703 A2 TA704 A2 TA705 A2 TA706 A2 TA707 A2
1.94V 2.20V
FFC 1.0/5PIN TO VFD BOAR
D
AD _K EY
KEY_ IN T
BK3.3V
STB_ LED
AD _K EY GN D
R 711
TA 702 TA 705 TA 701
Q702
TA 706 TA 707
R 701 R 702 R 703 R 704 R 705
TA 703 TA 704
R 707 R 708
R 710
LD 701
Q701
R 709
CN701
TP 1
TP 2
TP 3
TP 4
TP 5
TP 6
TP 7
TP 8 TP 9
TP 10 TP 11
TP 12
TP 13
TP 14
TP 15
TP 16
TP 17
TP 18
V_ (AD_ KE Y) =3.3/(1+4K 7/R701)
Press TA701
KEY BOARD SC H
0.35V 0.69V 0.99V 1.3V 1.63V
47K
VOL - STOP VOL +
2SA733
PLAY
MAW 060001-0010
560 680 750 1K 1K 5
SOURCE STBY
2K 2 2K 7
1K
KED 200003-0030
2SC1623
390
CCH-100270-0605
1
2
3
4
5
1 2
1 2
A A