Loewe Q2500B Serviceanleitung Seite 142

Technology of Q 2500 colour TV set
Q2500 blocking oscillator type power supply, secondary side
C492
R492
D491
1N4148
T639
SMT+PFC
22
6
20
19
5
18
17
3R3
8
15
16
10 14
13
12
Document Q 2500
4u7
1k
D652
*Best-Var*
L650
D651
FE_PE
*Best-Var*
UB
C0650
C651
150p/1600V
47u/250V
R657
L656
4k7/1%
FE_PE
F656
D656
F3,15A
EGP30F
C656
680p/500V
C661
F661
680p/500V
D661
T4A
L661
*Best-Var*
R491
FE_PE
D663
*Best-Var*
C662
2,4
1000u
F672
T5A
C682
4700u
F689
D0681
R686
0R1
L685
FE_PE
D686
BYW98-200
R687
D687
0R1
BYW98-200
C688
680p/500V
C689
680p/500V
W701
to power supply unit TVO
3
2
U14
an L534/(UB)
1
B548
R10
R688
B549
1R
R10
R0658
4k7/1%
C692
U25
330n
R690
C657
1R
470u/50V
R652
1R
C660
U14
100u
C664
22n
D660
Q663
C12V
STP16NE06FP
R660
4k7
C655
U7
4u7
C672
C673
1k
330n
C681
U+NF
I676
L686
TL431ACLP
FE_PE
R685
Q682
L687
U-NF
FE_PE
R684
19
I691
R692
L78S09CV
*Best-Var*
1 IN OUT
3
GND
C694
C693
100u
330n
I663
R654
L7808ACV
100R
1 IN OUT
3
GND
C667
100u
C665
C668
R674
330n
470u/50V
1k
R668
R661
4k7/1%
4k7
U5
C674
22n
R664
R677
R562
10k/1%
15k
C552
R679
100k 330n
Q562
STP16NE06FP
I569
R681
TL431ACLP
R682
Q681
© Loewe ProCollege
U9
U8
U12
U25
C658
330n
U3.3
D569
C12V
R561
3k9/2%
R560
10k/1%