Block Diagram - Gamma Control/Lcd Drive Section - Sony LDI-100 Service Manual

4-3. BLOCK DIAGRAM – GAMMA CONTROL/LCD DRIVE Section –
R/G/B MIX OUT
R
K R IN
22
(Page 4-6) G
24 G IN
B
26 B IN
D/A CONVERTER
(FOR GAMMA COMPENSATION)
IC206
DA01 18 27 AMP R GAIN
17 DIN
DA02 19 28 AMP G GAIN
16 CLK
DA03 2 29 AMP B GAIN
15 LD
AMP R BIAS
DA04 3 30
14 DO DA05 4 31 AMP G BIAS
DA06 5 32 AMP B BIAS
D/A CONVERTER
(FOR GAMMA COMPENSATION)
IC205
DA04 3 42 GAM R WHG
17 DIN
DA05 4 43 GAM G WHG
CLK
16
DA06 5 44 GAM B WHG
15 LD
DA07 6 45 GAM R B1G
DA08 7 46 GAM G B1G
DA09 8 47 GAM B B1G
DA10 9 48 GAM R B2G
DA11
12 49 GAM G B2G
DA12 13 50 GAM B B2G
D/A CONVERTER
IC207
RESET
DA05 4 9 SID LEV
Q
20 R
DA06 5 11
PRG LEV
(Page 4-10)
DA07
6 12 BLK LIM
DA08 7 25 CLP LEV
3 DIN
2
CLK
1 LD
VCOMOS L
DA03 16
VCOMOS R
DA02 15
SIG CEN
DA01
14
SDATA,
SCLK
P
(Page 4-10)
HSYNC TG,
VSYNC TG
O
(Page 4-6)
24 25
05
GAMMA CONTROL
IC201
R OUT
18
SID
G OUT 16
INVC
DIRC
B OUT 14
DLYC
POS2
POS1
V33
SID
6
SID OUT
PRG
INVC
INV CNT 5
FRP
DIRC
DIR CNT 4
DLYC SIG CEN
DLY CNT 3
POS2 VCOMOS R
2
POS CNT2
POS1
POS CNT1 1
V33
V33 8
SID
INVC
DIRC
DLYC
POS2
POS1
V33
PRG
FRP
SIG CEN
VCOMOS L
PRG
PRG PLS 10
PCG
SID
CLP PLS 20
INVC
DIRC
DLYC
POS2
POS1
52 51
V33
PRG
FRP
SIG CEN
VCOMOS L
5 6
4-7
LCD DRIVER
IC202
SIG R 1
31
SH OUT1
SIG R 2
47 VIDEO IN SH OUT2 29
SIG R 3
SH OUT3 27
SIG R 4
SH OUT4 21
39 SID IN
SIG R 5
SH OUT5 19
52 INV CNT
SIG R 6
SH OUT6
17
13 DIR CNT
49 DLY CNT
VCOM OUT
33
2 POS CNT2
P SIG R
SID AMP
1 POS CNT1
SID OUT 38
Q201 – 204
48 OFFSET
42 SID OFST
ENB 12
62 PRG
44 FRP
CLKH
50
MCLK
CLKL
35 SIG CEN
MCLK/ 51
34 VCOM OFST
LCD DRIVER
IC203
SIG G 1
SH OUT1 31
SIG G 2
SH OUT2
47 VIDEO IN 29
SIG G 3
SH OUT3 27
SIG G 4
SH OUT4 21
39 SID IN
SIG G 5
SH OUT5 19
52 INV CNT
SIG G 6
SH OUT6
17
13 DIR CNT
49 DLY CNT
VCOM OUT 33
2 POS CNT2
P SIG G
SID AMP
1 POS CNT1
SID OUT 38
Q205 – 208
48 OFFSET
42 SID OFST
ENB 12
62 PRG
44 FRP
CLKH
MCLK 50
CLKL
35 SIG CEN
MCLK/ 51
34 VCOM OFST
LCD DRIVER
IC204
SIG B 1
SH OUT1 31
SIG B 2
SH OUT2
47 VIDEO IN 29
SIG B 3
SH OUT3 27
SIG B 4
SH OUT4 21
39 SID IN
SIG B 5
SH OUT5 19
52 INV CNT
SIG B 6
SH OUT6 17
13 DIR CNT
49 DLY CNT
VCOM OUT
33
2 POS CNT2
P SIG B
1 POS CNT1 SID AMP
SID OUT 38
Q209 – 212
48 OFFSET
42 SID OFST
ENB 12
62 PRG
44 FRP
CLKH
MCLK 50
CLKL
35 SIG CEN
MCLK/ 51
34 VCOM OFST
32 31 23 24
SDATA
12 SDATA
SCLK
11 SCLK
PLL
10 ENABLE
IC302
23
SYSTEM CONTROLLER
IC501 (3/5)
SIG R 1 – SIG R 6 SIG R 1 – SIG R 6
SIG G 1 – SIG G 6 SIG G 1 – SIG G 6
SIG B 1 – SIG B 6 SIG B 1 – SIG B 6
COM R
P SIG R/G/B
PCG
MODE 1/2/3
LCD UNIT
RGT
(RIGHT SIDE)
BLK
DWN
VCK
HST
HCK1
HCK2
VST R
XCLP1 27
VST 62
MODE1 54
MODE2 53
MODE3 51
RGT 49
BLK 58
67
DWN
VCK 61
LCD TIMING
GENERATOR
IC301
HST 55
60 ENB
3 CLI2 HCK1 56
4 HSYNC
HSYNC TG VSYNC TG HCK2 57
5 VSYNC
9
FLDO 79
RSTR 68
PCG
65 PCG RSTW 70
FRP
30 FRP
PRG
29 PRG WCK 71
SDATA
16 SDAT RCK 69
SCLK
15 SCLK
14 74
22 57
4-8
LDI-100 (SYL)
• SIGNAL PATH
: VIDEO
COM L
P SIG R/G/B
PCG
MODE 1/2/3
LCD UNIT
RGT
(LEFT SIDE)
BLK
DWN
VCK
HST
HCK1
HCK2
VST L
DATA SELECTOR
IC304
13 2C3
VST L
OUTPUT
11 2C1 9
2Y
10 2C0
1C2
4
VST R
OUTPUT
5 1C1 7
1Y
6 1C0
14 2
(Page 4-6)
DOCKI
N
DOCKI,
XCLP1, VST
XCLP1
VST
LEVEL SHIFT
IC303 (1/3)
LEVEL SHIFT
IC303 (2/3)
LEVEL SHIFT
IC303 (3/3)
(Page 4-5)
RSTR
RSTW, RSTR
I
RSTW
WCK WCK, RCK
H
RCK
(Page 4-5)
62 55