Lcd Block Diagram - Sony MVC-FD75 Service Manual

MVC-FD75

3-6. LCD BLOCK DIAGRAM

PK-59 BOARD (3/3)
CN603
H
(3/3)
IC802 9 REC/PB
PANEL R
44
PANEL G
42
PANEL B
40
TO
FC-86 BOARD
1
(CAMERA BLOCK)
CN602
(SEE PAGE 3-4)
PANEL XHD
PANEL XHD
50
PANEL XVD PANEL XVD
48
XLCDH XLCDH
39
XCS PANEL D/A
TO
MODE CONTROL HI SO
9
BLOCK
XHI SCK
(SEE PAGE 3-10)
IC903
SWITCH
(SEE PAGE 4-35)
13 5 6 12
CN802
PANEL B
1
PANEL G
2
PANEL R PANEL XHD
1 IN/OUT1 2
3 OUT/IN1
PANEL XVD
4 IN/OUT2 OUT/IN2 3
JIG XHD
5 8 IN/OUT3 OUT/IN3 9
JIG XVD
6 11 IN/OUT4 OUT/IN4 10
CPC
HSY
(FOR CHECK)
7
COM
8
VG
9
LANC IN
11
LANC OUT
12
XPWR SW
13
INDEX
15
TRACK 00
16
FDD RF
18
FDD RF
TO
T00
FDD INTERFACE
7
BLOCK INDEX
(SEE PAGE 3-8)
XPWR SW
TO
LANC OUT
MODE CONTROL
8
BLOCK LANC IN
(SEE PAGE 3-10)
05
600 mVp-p
H
IC802 8 REC/PB
600 mVp-p
G/Y
8
R/R-Y/CR
9
B/B-Y/CB
10
560 mVp-p
H
IC802 0 REC/PB
IC801
EVR
(SEE PAGE 4-33)
39 32 31 40 30 35 38
BRT
BRIGHT 1
BRT R
BRT R 4
BRT B
5
BRT B
CONT
CONT 6
AMP
22 XEN
RGB AMP 9
COM ADJ
20 SI COM ADJ 10
BRT TST
19 CLK BRT TST 18
COM
V COM 8
7.7 MHz
IC901 wh REC/PB
IC902
(1/2)
(SEE PAGE 4-35)
VCO 7 VCO
FILTER
15 EXT
16 JIG CON
COMTST
COMTST 17
BL LEV
3.2 Vp-p
14 EXT BGP BL LEV 10
H
IC901 ej REC/PB
XLCDH
IC851
DC/DC CONTROL
(SEE PAGE 4-39)
7.0 Vp-p
2 µsec SAW
7 –
OSC
IC851 1 REC/PB
+
–
Q851, 852
+
2 VCC
PANEL 4.9V
SHORT CIRCUIT
PROTECT
3-11
IC802
LCD DRIVE
(SEE PAGE 4-34)
R OUT
G OUT
B OUT
LCD DRIVE
COM OUT
48 29 28
4.0 Vp-p
IC901
LCD TIMING GENERATOR
(SEE PAGE 4-35)
WIDOV 9
FRPV 11
27 OSCI
FRPT 12
26 OSCO
CTR 22
EX2 20
21
EX3
32 PDP
SPD 23
47 COMTST
CLD 24
CLS 13
SPS 14
15
EX1
MODE1 16
MODE2 17
37 SYNI
RES 18
34 P15
36 P16
V
4 HSY
IC901 ef REC/PB
Q856
SWITCHING
4
BL UNREG 2
•
5
1 3
Q854
OUT
1 SWITCHING
PUT
FB
3
4
Q853
5
PROTECT
D852
SWITCH
4.0 Vp-p 4.0 Vp-p
2H 2H 2H
IC802 w; REC/PB IC802 ws REC/PB IC802 wf REC/PB
20
22
24
Q903 – 906
41 5 COM AMP 7 BUFFER
IC902
(2/2)
(SEE PAGE 4-35)
1.8 Vp-p
2H
IC802 ra REC/PB
VGL
PANEL –15.3V
GENERATOR
VB12
PANEL 4.9V
GENERATOR
3.2 Vp-p
5.0 Vp-p
H
IC901 4 REC/PB
INVERTER
TRANS
3 5
Q860
1 1
INVERTER
4 2
DRIVE
Q857 – 859
3
BL LEVEL
5 4
Q855
IC852
CURRENT DETECT
(SEE PAGE 4-40)
D853
3
+
4
Q862 1
–
LED SWITCH
3-12
4.0 Vp-p
PANEL UNIT
CN901
VR
9
VG
10
VB
11
COM
14
LCD901
2.5inch
COLOR
LCD
MONITOR
+
VGL
15
VB12
6
CTR
3
EX2
5
EX3
4
SPD
2
CLD
1
CLS
21
SPS
20
EX1
19
MO1
18
MO2
17
RES
7
T851
CN851
ND801
BACK LIGHT
18
BL HIGH
10
•
19
6
2
BL LOW
•
3
D901
LED
LED
5