Panasonic CT-20SL15 - 20" CRT TV Servicehandleiding - Pagina 28
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A
B
8
7
C1502
47P CH
R1501
220
0
0.6
R1503
0
2.2K
BUFFER
1/4W
Q1501
2SA1037AK
6
S801X
5
4
3
2
1
A
B
G-13
C
COMB/FILTER/AV SCHEMATIC DIAGRAM
(MAIN PCB)
C1514
10V
100
BUFFER
Q1502
KTC3875S_Y_RTK
R1508
C1511
3.5
2.0
1K
0.01
B
2.6
C1512
C1506
16V
100
YK
27P
CH
D.VCC
D.VSS
0
5.2
C1515
KILLER
CKin
BUFFER
0
2.3
100P CH
Q1505
KTC3875S_Y_RTK
TEST
V.FIL
0
2.2
3.5
2.9
C1509
C1516
BIAS1
BIAS3
1.2
3.5
3.5
0.01
B
0.01 B
R1504
L1503
ADin
C.OUT
2.5
100
10uH
2.9
C1508
C1517
VRT
BIAS2
2.9
1.5
0.1
B
0.01 B
C1510
R1505
L1504
VRB
Y.OUT
2.3
0.01
B
100
15uH
BUFFER
3.5
Q1507
A.VSS
A.VDD
KTC3875S_
0
5.1
Y_RTK
3
COMB FILTER IC
3.5
IC1501
TC90A45FG
YUV_IN(REAR)
J704
MSP-213V1-652_NI_LF
28
29
LINE1(REAR)
J701
MSP-213V2-432_NI_LF
R733
R726
8.2K
8.2K
S803X
Y
S-JACK
J702
YKF51-5503N
C
C734
0.1 B
FRONT-VIDEO
J705
MTJ-032-03A-30FE
FRONT-AUDIO.L
J706
MTJ-032-03A-32FE
LINE3_A_IN_L
FRONT-AUDIO.R
J707
MTJ-032-03A-31FE
LINE3_A_IN_R
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
VIDEO SW(Y) IC
IC1502
MM1501XNRE
C1503
R1509
4.5
Vin1
SW1
C1505
1K
50V
4.7
KA
R1510
0
0.01
B
GND
V.OUT
390 1/4W
4.5
YK
Vin2
Vcc
VIDEO SW(C) IC
IC1503
MM1501XNRE
C1501
R1507
4.5
Vin1
SW1
1K
0.01 B
0
GND
V.OUT
4.5
Vin2
Vcc
R1516
220 1/4W
R1512
1K
R1511
C1520
100
18P CH
R1517
2.2
1K
C725
C722
1
B
1
B
S803Y
C735
50V
22
YK
R745
C719
1
B
8.2K
R746
C720
1
B
8.2K
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D
E
F
G
FROM/TO MICON
0
Y/C_SW
S_IN
4.4
7.9
TO SOUND
P.CON+8V[A]
FROM/TO CHROMA
0
Y_V_OUT_SW
4.4
C_V_OUT_SW
L1501
7.9
100uH 0305
P.CON+5V
FSC_OUT
VIDEO_OUT
V_IN[YUV]
U_IN[YUV]
Y_IN[YUV]
VIDEO_IN1
VIDEO_IN3
FROM/TO POWER
GND
TO TUNER/STEREO
AUDIO_IN1/2[R]
AUDIO_IN1/2[L]
AUDIO_IN3[L]
AUDIO_IN3[R]
LUMINANCE SIGNAL
COLOR SIGNAL
TUNER VIDEO SIGNAL
F
G
H
8
7
6
5
4
3
2
PCB070
CME022
1
H
G-14