Panasonic PT52LCX66 - MULTI MEDIA DISPLAY Service Manual page 56

PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
VIDEO SIGNAL PATH II BLOCK DIAGRAM
LCD DRIVE P.C.B.
IC2504 (LVDS RECEIVER)
LVDS DATA A(+) CN2502-14 10
LVDS DATA A(-) CN2502-15 9
LVDS DATA B(+) CN2502-11 12
LVDS SERIAL TO
LVDS DATA B(-) CN2502-12 11
TTL PARALLEL
FROM VIDEO I
LVDS DATA C(+) CN2502-8 16
CONVERTER
SIGNAL PATH
LVDS DATA C(-) CN2502-9
15
BLOCK DIAGRAM
LVDS DATA D(+) CN2502-2
20
(CN5700)
LVDS DATA D(-) CN2502-3
19
LVDS CLOCK(+) CN2502-5
18
LVDS CLOCK(-) CN2502-6
17
PLL
IC2502
13,23,31,40,48,56
+3.3V
+5V 5 4 VCC
REG.
<FROM IC2301(37)> CORRECT ON(L)
<FROM IC2301(34)> RESET(L)
IC2503 (SIGNAL PROCESS FOR LCD PANEL)
R DATA (8BIT)
30,32-35, A8,A9,B8-B10, J1-J3,K1-K3,L1-L3,M1-M3,
37-39 C8-C10 N1-N3,P1-P3,R2,R3
S/H CLOCK(R)
XFR(R)
NON UNIFORMITY COLOR COMPENSATION
STSQO(R)
G DATA (8BIT) GAMMA CORRECTION
41-43,45-47, A11-A13,B11-B13,
DIRX(R)
49,50 C12,C13
WHITE BALANCE CONTROL
TIMING GENERATOR FOR PANEL DRIVE
B DATA (8BIT)
1-3,5,51, A15,A16,B15-B17,
53-55 C15-C17
H-SYNC 29 A1 H-SYNC
V-SYNC 27 A2 V-SYNC
ENBY2(B)
26 E1 CLOCK(76 MHz)
ENBY1(B)
CLYOUT(B)
DYOUT(B)
DXOUT(G)
CLXOUT(G)
ENBX1(G)
V6,V8-V12,
W6-W12,Y6-Y12
S/H CLOCK(G)
XFR(G)
STSQO(G)
FRP(G)
DIRX(G)
L18,M18-M20,N18-N20,P19,P20,
R18-R20,T18-T20,U18-U20,V19,V20
C5,C14,ETC
+3.3V VDD2(+3.3V)
S/H CLOCK(B)
XFR(B)
STSQO(B)
IC2501
FRP(B)
D7,D8,ETC
+1.8V
VDD1(+1.8V)
1 3
REG.
CORRECT ON(L)
A6
RESET(L)
E20
IC2003,IC2004 (SAMPLING HOLD)
R DATA
(20BIT)
CONTROL LOGIC D/A
70-79
& DAC LATCH COVERTER
R1 3
T3 4
T1 5
6
V5 7
SERIAL
V-REF I/F
64
(+7V)
SCALE
CONTROL
V-REF
65
(+9.3V)
IC2007 (LEVEL SHIFTER)
48 RESET(L)
10 PLL
NRG C20 40
J19 41
J20 42 LEVEL
H18 43 SHIFTER
H19 44
Y16 5
W16 6
Y20 8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
IC2002,IC2005 (SAMPLING HOLD)
G DATA
(20BIT)
CONTROL LOGIC D/A
70-79
& DAC LATCH COVERTER
V13 3
W13 4
V14 5
W14 6
W20 7
SERIAL
V-REF I/F
64
(+7V)
SCALE
CONTROL
V-REF
65
(+9.3V)
IC2008 (LEVEL SHIFTER)
RESET(L)
48
PLL
10
40
41
42
LEVEL
43 SHIFTER
44
5
6
8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
IC2001,IC2006 (SAMPLING HOLD)
B DATA
(20BIT)
CONTROL LOGIC D/A
70-79
& DAC LATCH COVERTER
L19 3
L20 4
K19 5
K20 6
7
SERIAL
V-REF I/F
64
(+7V)
SCALE
CONTROL
V-REF
65
(+9.3V)
IC2009 (LEVEL SHIFTER)
48 RESET(L)
10 PLL
40
41
42 LEVEL
43 SHIFTER
44
5
6
8
13,22,34
+15.5V VDD
12,37,39
+3.3V VDD
56
VIDEO SIGNAL
+15.5V
TP2001 CN2001-1
CN2001-2
CN2001-3
TP2004
CN2001-(4-15)
(IC2004 PIN49 LINE)
CN2001-16
CN2001-17
ON/OFF
49,51,53,
CN2001-18
55,57,59
SW
CN2001-19
CN2001-20
CN2001-21
VCC 18,28,ETC +15.5V
CN2001-22
VCC +3.3V CN2001-23
80
CN2001-24
CN2001-25
LCDCOM CN2001-26
D/A ON/OFF
16
COVERTER SW CN2001-27
CN2001-28
CN2001-29
CN2001-30
CN2001-31
CN2001-32
CN2001-33
MONITOR 35 CN2001-34
33 CN2001-35
32 CN2001-36
31
25
29
28
27
26
20
19
18
17
16
15
14
CN2002-1
TP2002
CN2002-2
CN2002-3
TP2005
CN2002-(4-15)
(IC2005 PIN49 LINE)
CN2002-16
CN2002-17
ON/OFF 49,51,53,
CN2002-18
SW 55,57,59
CN2002-19
CN2002-20
CN2002-21
VCC 18,28,ETC +15.5V
CN2002-22
VCC 80 +3.3V CN2002-23
CN2002-24
CN2002-25
D/A ON/OFF LCDCOM CN2002-26
16
COVERTER SW CN2002-27
CN2002-28
CN2002-29
CN2002-30
CN2002-31
CN2002-32
CN2002-33
MONITOR 35 CN2002-34
CN2002-35
33
CN2002-36
32
31
25
29
28
27
26
20
19
18
17
16
15
14
TP2003 CN2003-1
CN2003-2
CN2003-3
TP2006
CN2003-(4-15)
(IC2006 PIN49 LINE)
CN2003-16
CN2003-17
ON/OFF 49,51,53,
CN2003-18
SW 55,57,59
CN2003-19
CN2003-20
CN2003-21
VCC +15.5V
18,28,ETC
CN2003-22
VCC +3.3V CN2003-23
80
CN2003-24
CN2003-25
LCDCOM CN2003-26
D/A ON/OFF
16
COVERTER SW CN2003-27
CN2003-28
CN2003-29
CN2003-30
CN2003-31
CN2003-32
CN2003-33
MONITOR 35 CN2003-34
33 CN2003-35
32 CN2003-36
31
25
29
28
27
26
20
19
18
17
16
15
14
VIDEO SIGNAL PATH II BLOCK DIAGRAM
PT-52LCX66/PT-56LCX66/PT-61LCX66/PT-52LCX16/PT-56LCX16
LCD(R)
LCD(G)
LCD(B)