Panasonic CT-20SL15 - 20" CRT TV Service Manual - Page 23

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Panasonic CT-20SL15 - 20
A
B
8
FROM/TO COMB FILTER
7
V_IN[YUV]
VIDEO_IN1
U_IN[YUV]
Y_IN[YUV]
VIDEO_IN3
6
C_V_OUT_SW
Y_V_OUT_SW
7
VIDEO_OUT
FSC_OUT
R604
P.CON+5V
10
3W
5
FROM/TO TUNER/STEREO
TUNER+5V
TUNER_VIDEO
P.CON+5V
TO SOUND
P.CON+8V[A]
4
FROM POWER
UNREG+12V
GND
3
FROM/TO DEFLECTION
P.CON+5V
GND
V_OUT
H.OUT
H_SYNC
ABCL
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
G-3
C
CHROMA SCHEMATIC DIAGRAM
R603
330
1/2W
2.7
0
3.0
48
47
2.2
C641
P.CON+5V REG
C IN(Y/C)
Q606
S802X
S802Y
0.1
B
KTC3209_Y
0
R602
NC(GND)
C642
3.0
7.2
5.0
10
3W
Y IN(Y/C)
5.5
5.0
50V
1
KA
8.7
VREG VCC
7.2
1.9
P.CON 5V
5.5
REG
NC
CVBS4
5.0
7.2
Q604
P.CON 5V REG
5.5
W832
5.7
KTC3209_Y
Q602
5.7V VREG OUT
KTC3209_Y
3.2
fsc OUT
0
NC
NC
0
FAST YUV
2.8
DELAYDE Y OUT
NC
3.0
EW OUT
NC
3.0
VIDEO LINE OUT
8.7
8.7 VREG OUT
4.0
VRAMP AGC CAP
4.0
V OUT
4.0
8
VRAMP CAP
1
2
R601
3.2
4.0
15
1W
P.CON 8V REG
Q601
KTC3209_Y
7.9
11.3
8.5
R609
100
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.
C
D
E
(MAIN PCB)
W831
R616
8.8
82 1/2W
5.5
NC
0
1.2
0
1.9
5.0
1.2
0
1.9
5.6
2.8
0
3.2
0
46
45
44
43
42
41
40
39
38
37
36
35
34
33
3.6
Y SW OUT
0
NC
NC
5.0
MCU RESET
3.5
MCU CLOCK OUT
NC
5.0
47 NC(GND)
33 V/C GND
P_CON CONT
48 Y IN(YUV)
34 XTAL 3.58
3.5
SCL
3.5
SDA
4.9
CHROMA IC
CLK CONT
IC601
4.2
M61283BFP
FAST BLK
2.9
R IN
1 HVCO F/B
15 G OUT
2.9
G IN
2 AFC FILTER
16 B OUT
2.9
B IN
4.6
V PULSE OUT
4.9
INV.FBP OUT
11
4.9
MONITOR OUT
2.1
ACL
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0
0
0
5.5
0
3.8
8.0
8.0
0
8.0
8.0
4.0
4.0
4.0
NC
15
NC
14
9
13
R635
120K
R636
10
1.5K
ATTENTION
:LES PIECES REPAREES PAR UN
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
4.9
AT+5V REG
Q607
KTC3203_Y
R627
100
R628
100
C637
33P CH
C643
33P CH
C644
33P CH
W805
R629
D608
6.8K 1/4W
11E1-EIC
R623
R620
100 1/4W
R626
100 1/4W
100 1/4W
CAUTION
:SINCE THESE PARTS MARKED BY
ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F
G
H
8
7
6
FROM/TO MICON
PROTECT
SW_Y_OUT
AT+5V
RESET
POWER
SCL
5
SDA
CLOCK_CNT
OSD_BLK
OSD_R
OSD_G
OSD_B
VD
4
HD
SYNC_OUT
CLAMP_OFF
3
TO CRT/SVM
CP802A
(CP802B)
B2013H02-6P
P.CON+8V
1
GND
2
G.OUT
3
R.OUT
4
B.OUT
5
CLAMP_OFF
6
2
PCB070
CME022
1
H
G-4