Philips 32PFL4664/F7 Service Manual page 53

Digital Main 1 Schematic Diagram [TYPE A]
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL.
4
2.5A 250V
L601
F602
LINE
2.5A/250V
FILTER
AC601
CN601
AC CORD
C604 C614
B R601
SA601
0.22 0.22
1.2M
VARISTOR
W /275V /275V
/1/2W
3
R614
330K
R603
330K
R604
330K
BC601
BEAD
Q601
STD10N60M2
151.2 C608
(SWITCHING)
0.015
C606
100P 2.8
/2KV Q602
0
C607 KTC8050S-D-RTK/P
2200P
SWITCHING
CONTROL
2 2.8 R608
1.5K
0.4
D607
0
OPEN
Q621
KTC3875S
-Y-RTK/P
OVER
VOLTAGE
0.4
PROTECT
0
0
R623
10K
D609
RB520SM-30
R609
100
R605 D608 C609 R612
0.36/2W KDZVTR36B 0.068 3.9K
C671
10/16V
1
A
CAUTION ! :
2.5A 250V
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
C650
680P
R650
/630V 2.2
C603
1000P/250V
D650
RS2G
C1001
47/100V
C602
1000P/250V
D602 D603
1N5406BRV 1N5406BRV
D601 D604
1N5406BRV 1N5406BRV
C601
OPEN
D655
SS310
C605
330/200V
D653 C654
SS310 1000/16V
T601
POWER TRANS
C675 R694
OPEN OPEN
6 7
5 8
R651 D656
1 RS1BJTD
C656
4 9
1/50V
2 10
R606 R607
220 220
1 11
D605
MM5Z4V3B
D621
D610
1SS400ST
1SS400ST
R613
330
R621 D623
560 MM5Z36B
IC602
LTV-816S-TP-C
C623
4.7
ERROR
VOLTAGE DET R655 R654
220 220
C622 11.4 11.4
0.1
C610
R681
100P
1K
0.4 10.3
C674
1
C673
1
C666
1
C660 R658
1 270
10.3
2.5
D660
0 R661
AS431BNTR-E1 C669
10K
100P
HOT COLD
B C
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
DIGITAL MAIN CBA UNIT
D1009
C1002 C1003 C1005 D1019
MM5Z36B
47/100V 47/100V OPEN MM5Z20B
D1010
D1020
MM5Z36B
MM5Z20B
D1013 R1032
R1061 OPEN 0
10K
Q1009
KTC3875S
R1017
-Y-RTK/P
3.3 R1019 10K
(SWITCHING) 10K
0
0 C1012
1
C655 R663 D654 D1003
1000/16V OPEN PTZTE2518B 1SS400ST
C676
R653 OPEN
33K
1.0 Q650
D657 R652
KTC3875S
MM5Z8V2B 27K
-3.0
-Y-RTK/P
(RESET)
R693
R662
0
OPEN
12K
D662
1SS400ST
R675
24K
R676
2.2K
R667
22K
0
Q653
KTC3875S
-Y-RTK/P
0.6
R669
(SWITCHING) R668
0 10K
47K
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
C1022
1
R1018
10K Q1018
KTC3875S
R1036 R1035
-Y-RTK/P
10K 10K
(ERROR DETECT)
3.3 R1039 R1038
10K 100K
0
R1045 C1013
0
47K 4.7
0 R1037
1K
Q1017
KTC3875S 0.7
D1018
R1060
-Y-RTK/P 0 1SS400ST
10K
(ERROR DETECT)
D1017
1SS400ST
Q1003
3.4
AP18T10AGH-HF Q1016
5.6
D
KTC3875S
(SWITCHING)
-Y-RTK/P
G
(ERROR DETECT)
2.0
2.8
C1026
S
1.2 0.022
D1016
AZ431LBNTR-G1 2.0
Q1019
R1001 R1001A R1002A
KTC3875S-Y-RTK/P
OPEN OPEN 4.3/1W
LED BACKLIGHT 0
R1002
CONTROL SIGNAL
OPEN
DETECT
R1013
R1003 R1004 R1005 10
OPEN OPEN OPEN
R1010
2.2K
R1030 R1009
6.8K 6.8K
D1012
1SS400ST
0 2.8
Q1015 D1011 Q1005
1SS400ST
0.6 KTC3875S 0.2 KTC3875S
-Y-RTK/P -Y-RTK/P
LED BACKLIGHT LED BACKLIGHT
R1023 R1021 R1031
0 0
47K 10K CONTROL 47K DRIVE
0.3
Q1004
KTC3875S
0.5
-Y-RTK/P
LED BACKLIGHT
0
CONTROL
R1008
1K
0.5
R1020 Q1010
10K
0 KTC3875S
-Y-RTK/P
LED BACKLIGHT
0
CONTROL
E F
TO LCD PANEL
CN1001
ASSEMBLY
52.1
1 VLED
5.6
2 ILED
D1005
MM5Z8V2B
R1015
10K
CONTINUE
BC650
DIGITAL 5
BEAD
AMP+13V
P-ON+13V
AL+3.3V
1.9
R1016
33K
0.5
R1043
10K
CONTINUE
DIGITAL 8
LCD+12V
PROTECT-PANEL
R1042
1K
CONTINUE
DIGITAL 4
RESET
BACKLIGHT-ADJ
BACKLIGHT-SW
PROTECT3
P-ON-H2
G
PL19.00ASCD1