Panasonic PV-20DF25 - Page 60

TV Y/C PROCESS BLOCK DIAGRAM (Models : PV-27DF25/PV-27DF25-K/PV-27DF5)
TV Y/C PROCESS BLOCK DIAGRAM
RED
OSD
CHARACTER
MIX/
BLANKING
R
G
B
MAIN C.B.A.
DEFLECTION C.B.A.
P5302
2
P5302
3
P5302
4
23
22
21
MATRIX
FLYBACK
TRANS-
FORMER
ANODE
T551
D553
SCREEN
FOCUS
COLLECTOR
ABL
HEATER
+220V
+130V
(TO IC6001(100))
OVER CURRENT(H)
I
2
C
CONTROL
CHROMINANCE
SIGNAL PROCESS
CHROMINANCE
LUMINANCE
X5601
3.58MHz
(FROM IC6001(72))
I
2
C SERIAL DATA
(FROM IC6001(71))
I
2
C SERIAL CLOCK
FROM
VIDEO
SIGNAL
PAT H
BLOCK
DIAGRAM
LUMINANCE
SIGNAL PROCESS
H-PULSE
PROCESS
V-PULSE
PROCESS
TP5312
TP5305
OSD-R
DISPLAY
CONYTOL
OSD-G
OSD-B
OSD-BLANKING
CC VIDEO
BLANKING
36
41
Q571
29 28 27 20
64
63
62
60
IC6001
(OSD/CCV MICROCONTROLLER)
IC451 (V. DEFLECTION DRIVE)
IC5301
(LUMINANCE/CHROMINANCE SIGNAL PROCESS)
Q5381
56
59
58
P501
9
P501
5
P5501
9
Q501,Q551,T501
HORIZONTAL
DRIVE
3.58MHz
33
P501
2
P5501
12
P501
8
P5501
6
P501
6
P5501
8
P5501
5
D503, C513
D505
TP553
DC CONVERT
BUFFER
VCO
31 25
(FROM IC6001(29))
V MUTE(H)
VIDEO SIGNAL
Q5302
BUFFER
5
6
44 43 40 10 19 16 18 11
VERTICAL DEFLECTION
DRIVE
2 12
4 7
PINCUSHIN
COMPENSATOR
CIRCUIT II
FEEDBACK
CIRCUIT
Q431
BUFFER
Q523
OVER
CURRENT
DETECTOR
P5501
11
P5501
10
P501
3
P501
4
D5304
RED AMP
TP49
TP48
RED
TP46
DEFLECTION
YOKE
VM
COIL
GREEN AMP
BLUE AMP
CRT
HEATER
CRT C.B.A.
P351
4
P351
5
P351
6
RGB AMP
P352
1
RED
P6001
5
P503
5
P503
1
Q353,356
Q352,355
Q351,354
P352
5
P355
1
TP47
TP50
N
50 V
V1
120 Vp-p
O
20 µs
Q751, Q753
Q754
SW+12V
IC752
(COMPARATOR)
R766
H-WID
R763
H-PIN
R753
H-KEY
6
5
7
3
2
1
INTEGRATOR
CIRCUIT
PINCUSHION
COMPENSATOR
CIRCUIT
TP554
P502
1
+130V
FROM
MAIN C.B.A.
P851
A
A
B
E
E
F
F
G
G
0.5 V 20 µs
V1 0.9 Vp-p
C
D
K
B C D
0.5 V 20 µs
V1 1.1 Vp-p
2 V 20 µs
V1 5.6 Vp-p
2 V 20 µs
V1 4.8 Vp-p
2 V 20 µs
V1 5.2 Vp-p
H
H
J
J
K
I
I
V1
1.5 Vp-p
0.5 V
20 µs
V1
4 Vp-p
2 V
20 µs
V1
4 Vp-p
2 V
5 ms
V1
4 Vp-p
2 V
5 ms
V1
28 Vp-p
10 V
20 µs
V1
1080 Vp-p
200 V
20 µs
V1
30 Vp-p
20 V
5 ms
N
O
50 V
V1
90 Vp-p
20 µs
50 V
V1
110 Vp-p
20 µs
PV-27DF25/PV-27DF25-K/PV-27DF5
PV-20DF25 / PV-27DF25 / PV-27DF5 / PV-20DF25-K / PV-27DF25-K
60