Panasonic PT-40LC12 Service Manual page 139

VIDEO SIGNAL PATH I BLOCK DIAGRAM (1/2)
REAR JACK C.B.A.
JK4703
COMPONENT
-Y1
COMPONENT
-PB1
COMPONENT
-PR1
JK4704
COMPONENT
-Y2
COMPONENT COMPONENT1(H)/COMPONENT2(L)
-PB2 <FROM IC6001(28)>
COMPONENT
-PR2
JK4705
Y
S-VIDEO IN1 C
VIDEO IN1
Y
S-VIDEO IN2 C
VIDEO IN2
FRONT JACK C.B.A.
JK4801
Y
P3902-5 P3002-5 P4601-6
S-VIDEO IN3 C
P3902-3 P3002-3 P4601-4
VIDEO IN3 P3902-1 P3002-1 P4601-2
TV MAIN C.B.A.
U7001
(MAIN TUNER)
Q7001
RF-IN
VIDEO 25 P4601-8
RF-OUT
U7101
(SUB TUNER)
Q7101
RF-IN VIDEO 25 P4601-10
JK4701
Q3701
Q3702
C
S-VIDEO B
Y
OUT B
Q3703
VIDEO OUT B
IC3751
(INPUT SELECT)
TP3751 TP3751 WF16
Y1
1
Y2
3
16
TP3751 TP3752 WF17
PB1
14
PB2
5
11
TP3753 WF18
PR1
9
PR2 6
8
VCC 13 SW +9V
2 12 7 IC3701 (A/V SW)
MAIN S-VIDEO-C
WF2
WF3
63
MAIN S-VIDEO-Y
1 /MAIN VIDEO
8
15
30
60
WF8
WF10
3
10
17
WF9
WF12
WF11
WF13
5
P4701-6
12
P4701-4 19
VIDEO
INPUT
P4701-2
SELECT
WF4
SUB
S-VIDEO-Y
SUB
S-VIDEO-C
WF1
P4701-8
SUB VIDEO
WF10
P4701-10
SUB VIDEO-C
SUB VIDEO-Y
LOGIC
37
39
41
VCC
MAIN S-VIDEO-C
47
(VIDEO INPUT) WF5
(S-VIDEO INPUT) WF15
MAIN S-VIDEO-Y
44
MAIN VIDEO/MAIN TUNER
TP5501
WF6
Q5511
IC5502
(3D Y/C SEPARATION)
Q5505,
Q5507
Q5504 Q5502 Q5509
Y
PRE
83 A/D D/A 96 LPF B
FILTER
3D Y/C
Q5501 Q5506 Q5508
SEPARATION
C
92 D/A 94 LPF B
Q5513
2
SW +2.5V VCC
3,13,18,43,50,62,
I2C
68,84,87,93,100
CONTROL
SW +3.3V VCC
10,24,36,74
76 75
FROM
I2C SERIAL CLOCK
SYSTEM CONTROL
I2C SERIAL DATA
BLOCK DIAGRAM
SUB S-VIDEO-Y
56
B
Q5320
SUB S-VIDEO-C
58
IC5701
(Y/C SEPARATION) Q5704
10
WF44
TP5703
Y Q5314-5317
Q5701
D/A 15
Y/C SYNC
53 LPF B 4 A/D
SEPARATION C SEPA.
D/A 13
IC5304
(MULTI VIBRATOR)
SW +5V 8,16 VCC
1
WF46
TP5702
Q5710 Q5706, 5708 Q5702
51 B FILTER B 10
WF45
TP5701 Q5709 Q5705, 5707 Q5703
49 B FILTER B
(MACRO VISION PULSE REDUCTION)
34 I2C SERIAL DATA
33 I2C SERIAL CLOCK
FROM
SYSTEM CONTROL
7 S-VIDEO1 CONNECT(L)/NO CONNECT(H)
BLOCK DIAGRAM
14 S-VIDEO2 CONNECT(L)/NO CONNECT(H)
S-VIDEO3 CONNECT(L)/NO CONNECT(H)
21
RESET(L)
FROM
SERIAL DATA1
SYSTEM CONTROL
SERIAL DATA0
SW +9V BLOCK DIAGRAM
42
SERIAL CLOCK
IC5003 (MAIN VIDEO DECODER/ID-1 DETECTOR)
30
YUV
SW SIGNAL
29
PROCESS
28
DEMOD.
WF14
SW
TP5007
16
IC5002
(SW)
COMPONENT-Y
5
Q5502
TP5010
7 2
S-VIDEO-Y
3 4
VIDEO-Y SW
1
VCC 6 SW +9V 6
2 4
COMPONENT(H)/S-VIDEO & VIDEO(L)
<FROM IC6001(30)>
WF7
TP5502 S-VIDEO(H)/VIDEO(L)
<FROM IC6001(32)>
19
Q5512
26 VCO
SW +5V VCC
25
SW +9V 1 VCC
14 I2C
CONTROL
13
IC5301 (SUB VIDEO DECODER)
SW +5V VCC
47
14 VCC(+6.2V)
SW +9V 38 VCC
4
43
I2C
40
CONTROL
44
31 VCO 25
WF41
R
23
LUMINANCE
41
SIGNAL PROCESS
OSD
CHARACTER G
MATRIX 22
MIX/
WF42
BLANKING
CHROMINANCE
36 B
SIGNAL PROCESS
21
5
TP5308
WF43
6
H-PULSE V-PULSE
16
PROCESS PROCESS
19 10 29 28 27 20
IC5303
(MULTI VIBRATOR)
MULTI-
Q5318
4
5 MULTI-
VIBRATOR
2
12 VIBRATOR
VCC 16 SW +5V
MULTI-
Q5319
5
VIBRATOR
VCC 16 SW +5V Q5301
Q5305
LEVEL
ADJUST
IC5302 (SUB CCV/V-CHIP DETECTOR)
OSD-R
17 19
OSD-G
18 DISPLAY 20
OSD-B
CONTROL 21
OSD-BLANKING
15 22
RESET(L)
13
VCC 7 UNSW +5V
SERIAL DATA1
43
SERIAL DATA0
45
SERIAL CLOCK
44 5
TP5011 WF19
Y
SUB
24
CONTRAST
TP5012 WF20
PB
MATRIX
23
SUB
TP5013 WF21
COLOR
PR
22
H-PULSE H-SYNC
17
PROCESS V-SYNC
15
V/H SYNC V-PULSE
SEPARATION PROCESS
X5002
3.58MHz
21
Q5020
MONITOR OUT 8
X5302
3.58MHz
TP5303 WF47
Q5302 Q5310
Q5307
B BLK MIX B
TP5304 WF48
Q5303 Q5312
Q5308
B BLK MIX B
TP5305 WF49
Q5306 Q5313
Q5309
B BLK MIX B
TP5306 WF50
TP5307 WF51
VIDEO SIGNAL PATH I BLOCK DIAGRAM
PT-40LC12/PT-45LC12