Panasonic PT-56LCX70 Service Manual page 58

PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
VIDEO SIGNAL PATH III BLOCK DIAGRAM
MAIN P.C.B.
IC2501 (LCD VIDEO PROCESS)
R2611, R2612,
R2617, R2618
a
R DATA (10BIT)
A8-A10,B8-B10,
C8-C11
R2613, R2614,
R2619, R2621
NON UNIFORMITY COLOR COMPENSATION
b
G DATA (10BIT) GAMMA CORRECTION
A11-A14,B11-B14,
C12,C13
WHITE BALANCE CONTROL
R2615, R2616, TIMING GENERATOR FOR PANEL DRIVE
R2622, R2623
c
FROM VIDEO I
B DATA (10BIT)
SIGNAL PATH
A15-A18,B15-B17,
BLOCK DIAGRAM
C15-C17
l
TP2506
H-SYNC H-SYNC
A1
k
TP2502
V-SYNC V-SYNC
A2
j
TP2505
CLOCK E1 CLOCK
MODE FREQUENCY
1080p 135MHz
1080i 74.25MHz
a g
OTHER 81MHz
V1 +3.30 Vp-p V1 +4.60 Vp-p
1V 25µs 1V 10ns
b h
V1 +3.30 Vp-p V1 +4.80 Vp-p
1V 25µs 1V 10ns
c i
V1 +3.30 Vp-p V1 +5.00 Vp-p
1V 25µs 1V 10ns
d j
V1 +3.30 Vp-p V1 +3.30 Vp-p
1V 25µs 1V 25ns
e k
V1 +3.30 Vp-p V1 +3.30 Vp-p
1V 25µs 1V 5ms
f l
V1 +3.30 Vp-p V1 +3.30 Vp-p
1V 25µs 1V 5µs
C5,C14,ETC
L2510
SUB+3.3V VDD2(+3.3V)
D7,D8,ETC
L2516
SUB+1.2V VDD1(+1.2V)
L2509
VDDP
F1
<FROM IC6001(47)> CORRECT ON(L) CORRECT ON(L)
A6
<FROM IC6004(123)> RESET(L) RESET(L)
E20
d L2632-L2651 IC2001 (SAMPLING HOLD)
WF33
R1 DATA (10BIT)
J1-J3,K1-K3, SHIFT
77-86
L1-L3,M3 REGISTER
MULTI-
PLEXER
R2 DATA (10BIT)
M1,M2,N1-N3, SHIFT
90-99
P1-P3,R2,R3 REGISTER
g
WF34
L2652
S/H CLOCK(R) R1 69
XFR(R) T3 70 TIMING
68 GENERATOR
DIRX(R) V5 67
IC2004 (LEVEL SHIFTER)
RESET(L)
48
PLL
10
NRG
C20 40
ENBY2(B) J19 41
ENBY1(B) J20 42
CLYOUT(B) H18 43
DYOUT(B) H19 44
DXOUT(G) Y16 5
CLXOUT(G) W16 6
ENBX1(G) Y20 8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
e L2653-L2672 IC2002 (SAMPLING HOLD)
WF35
G1 DATA
(10BIT)
V6,V8-V9, SHIFT
77-86
W6-W9,Y6-Y8 REGISTER
G2 DATA MULTI-
PLEXER
(10BIT)
V10-V12, SHIFT
90-99
W10-W12,Y9-Y12 REGISTER
h
L2673 WF36
S/H CLOCK(G) V13 69
XFR(G) W13 70 TIMING
FRP(G) W14 68 GENERATOR
DIRX(G) W20 67
IC2005 (LEVEL SHIFTER)
48 RESET(L)
PLL
10
40
41
42
43
44
5
6
8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
f L2674-L2693 IC2003 (SAMPLING HOLD)
WF37
B DATA
(20BIT)
R18,R19,T18-T20, SHIFT
77-86
U18-U20,V19,V20 REGISTER
B DATA MULTI-
PLEXER
(20BIT)
L18,M18-M20,N18-N20, SHIFT
90-99
P19,P20,R20 REGISTER
i
L2694
WF38
S/H CLOCK(B) L19 69
XFR(B) L20 70 TIMING
FRP(B) K20 68 GENERATOR
67
IC2006 (LEVEL SHIFTER)
48 RESET(L)
PLL
10
40
41
42
43
44
5
6
8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
58
TP2004
(IC2001 PIN26 LINE)
26,28,30,32,
D/A
DECODER LATCH 34,36,40,42,
COVERTER
44,46,48,50
m
V1 +1.00 Vp-p
VCC 19,23,ETC +15.5V
VCC 1,74,ETC SUB+3.3V
200mV 10µs
SERIAL D/A LCDCOM
22
I/F COVERTER
MONITOR 35
33
32
31
25
29
28
27
LEVEL
26
SHIFTER
20
19
18
17
16
15
14
n
TP2005
(IC2002 PIN26 LINE)
26,28,30,32,
D/A
DECODER LATCH 34,36,40,42,
COVERTER
44,46,48,50
V1 +1.00 Vp-p
VCC 19,23,ETC +15.5V
VCC 1,74,ETC SUB+3.3V
200mV 10µs
SERIAL D/A LCDCOM
22
I/F COVERTER
MONITOR 35
33
32
31
25
29
28
27
LEVEL
26
SHIFTER
20
19
18
17
16
15
14
TP2006
(IC2003 PIN26 LINE)
26,28,30,32,
D/A
DECODER LATCH 34,36,40,42,
COVERTER
44,46,48,50
o
V1 +1.00 Vp-p
VCC +15.5V
19,23,ETC
VCC 1,74,ETC SUB+3.3V
200mV 10µs
SERIAL D/A LCDCOM
22
I/F COVERTER
MONITOR 35
33
32
31
25
29
28
27
LEVEL
26
SHIFTER
20
19
18
17
16
15
14
VIDEO SIGNAL
LCD/PRISM UNIT
LCD(R)
+15.5V
m
TP2001 CN2001-1
CN2001-2
CN2001-3
CN2001-(4-15)
CN2001-16
CN2001-17
CN2001-18
CN2001-19
CN2001-20
CN2001-21
CN2001-22
CN2001-23
CN2001-24
CN2001-25
CN2001-26
CN2001-27
CN2001-28
CN2001-29
CN2001-30
CN2001-31
CN2001-32
CN2001-33
CN2001-34
CN2001-35
CN2001-36
LCD(G)
n
CN2002-1
TP2002
CN2002-2
CN2002-3
CN2002-(4-15)
CN2002-16
CN2002-17
CN2002-18
CN2002-19
CN2002-20
CN2002-21
CN2002-22
CN2002-23
CN2002-24
CN2002-25
CN2002-26
CN2002-27
CN2002-28
CN2002-29
CN2002-30
CN2002-31
CN2002-32
CN2002-33
CN2002-34
CN2002-35
CN2002-36
LCD(B)
o
CN2003-1
TP2003
CN2003-2
CN2003-3
CN2003-(4-15)
CN2003-16
CN2003-17
CN2003-18
CN2003-19
CN2003-20
CN2003-21
CN2003-22
CN2003-23
CN2003-24
CN2003-25
CN2003-26
CN2003-27
CN2003-28
CN2003-29
CN2003-30
CN2003-31
CN2003-32
CN2003-33
CN2003-34
CN2003-35
CN2003-36
VIDEO SIGNAL PATH III BLOCK DIAGRAM
PT-56LCX70/PT-61LCX70/PT-50LCX7/PT-56LCX7
/PT-61LCX7/PT-50LCX7K/PT-56LCX70-K/PT-61LCX70-K