Block Diagram - A/D, D/A, Osd, Sync Section - Sony LDI-100 Service Manual

LDI-100 (SYL)
4-2. BLOCK DIAGRAM – A/D, D/A, OSD, SYNC Section –
IC1101 – 1103 IC1104 – 1106
VIDEO RGB A/D CONVERTER LINE MEMORY
IC1101 IC1104
R, G, B R
D
21 VIN
(Page 4-3)
15 12 17 8 19 6
BF
F
(Page 4-3)
IC1102 IC1105
G
21 VIN
15 12 17 8 19 6
IC1103 IC1106
B
21 VIN
15 12 17 8 19 6
WCK,
RCK WCK
LEVEL SHIFT
H
IC1108 (1/2)
(Page 4-8)
RCK
LEVEL SHIFT
IC1108 (2/2)
RSTW, RSTR
I
(Page 4-8)
H SYNC SELECT
IC133
1
5 3
R
2
7
SYNC DETECT
G
IC443
3
B
2 6
13 PH 18
H SYNC
1 4 CS IN
PV 19
14
V SYNC
1 VS IN
EH 16
EV 17
J101
5 3
RGB
7
VIDEO H SYNC,
VIDEO V SYNC
G
2 6
2 TRIG
(Page 4-3)
1
TIMER
V SYNC SELECT IC445
IC132
PC/XV AU CONT
C
(Page 4-1)
EVR FH
J
(Page 4-10)
05
4-5
VIDEO RGB
D/A CONVERTER PC/VIDEO RGB SELECTOR
IC1201 IC131
VIDEO AMP
RO 37 7 V-R R-OUT 21
Q1251, 1252
1 PC-R
VIDEO AMP
9 V-G G-OUT 19
Q1261, 1262
3 PC-G
VIDEO AMP
11 V-B B-OUT 15
Q1271, 1272
5 PC-B
GO 39 16
BO 41
27 28 29
GATE SWITCH DIVIDER
IC453 IC452
RESET
H SYNC SELECT
IC447
5 3
7
IC446
HSYNC TG
OUT 3 2 6
1
V SYNC SELECT
IC451
5 3
7
VSYNC TG
2 6
1
• SIGNAL PATH
IC937
IC931 – 933, 935 – 937
OSD MIX SWITCH 2 1
: VIDEO
4
CLAMP
VIDEO
Q933, 951 VIDEO AMP OSD MIX AMP CLAMP
BUFFER
Q939, 942 Q945 Q948
Q936
OSD R
1
IC933
4
2
IC936
2 1
4
CLAMP
VIDEO
VIDEO AMP OSD MIX AMP CLAMP
Q932, 950
BUFFER
Q938, 941 Q944 Q947
Q935
OSD G
1
IC932
4
2
IC935
2 1
4
CLAMP
VIDEO
VIDEO AMP OSD MIX AMP CLAMP
Q931, 949
BUFFER
Q937, 940 Q943 Q946
Q934
OSD B
1
IC931
4
SYSTEM CONTROLLER
IC501 (2/5) 2
99 PC/XVIDEO CONT
OSD MIX
V MUTE 89 SWITCH CONTROL
IC934
31 HSYNC2
80 POL H
81 POL V
16 5
OSD R
HSYNC DET
78
ROUT (C1) 19
OSD G
79 VSYNC DET
GOUT (C2) 18
OSD B
OSD DISP
58 14 DISP
BOUT (C0) 20
OSD TRE 47 23 TRE
SDATA
ON SCREEN DISPLAY
59 EXT/XINT XCS OSD 43 26 CS SIN 25
CONTROLLER
SCLK
IC401 SCLK 24
DOCKI
DOCKI 8
XCLP1
HSYNC 12
VST
VSYNC 13
4-6
(Page 4-7)
K
R/G/B
MIX OUT
R MIX OUT
G MIX OUT
B MIX OUT
RESET
L
(Page 4-10)
SDATA, SCLK
M
(Page 4-10)
DOCKI, XCLP1, VST
N
(Page 4-8)
HSYNC TG,
VSYNC TG
O
(Page 4-7)