Canon D78-5311, Service Manual

Page: 71 / 122

Part 4: Troubleshooting
4-6
DGB0-9
3 1 5 22 8
16 18 20
IC5241
AV/PC-RGB-SW
A
V/PC
PC
: H
AV
:
L
IC5271 IC5281 IC5291
2 13 12 1
10 11
14 15
IC8001
DV
I
I/F
DV
I
DIGIT
AL/ANALOG
ANALOG
RGB
H-SYNC
V
-SYNC
IC6241
SYNC DET
.
IC6201
SYNC SW
1 5
12
8
IC6251
INVER
TER
IC6101
INVER
TER
2
11 6
3
9 8
16
5
3 5
11 13
IC5251 A
V/PC
SYNC-SW
5 2
6 3
IC6271 BUFFER
HAFC
IC251
TP52R TP52B TP52G
TP201R TP201B TP201G
TP205
HSYNC
IC201 A/D
22 40 7 15
TP62H TP62V
GB00-7 GBE0-7 GG00-7 GGE0-7 GR00-7 GRE0-7
HS VS
48
|
46 10
|
77
D_BE0-7 D_B00-7
D_GE0-7 D_G00-7
D_RE0-7 D_R00-7
IC8081 BUFFER
2 4 6
16 18
GHS GVS
80
|
90
PX+-, CLK, D
AT
A
H V
IC4101 RGB MA
TRIX
A
V/PC
66
55 56
65 29 28 69 68 67
73
74
75
HS_OUT VS_OUT
HD_HSYNC
HD_VSYNC
A
V_HSYNC
A
V_VSYNC
IC1101 VIDEO
DECODER
9
13 14
4
21 22 23
43 44 17 18 19
7
5
S_SW
Y/C
Cr_SW
TP11SC TP11SY
TP11PR
TP11PB
TP11CV
Cb_SW
IC2101 DIGIT
AL
COMB FIL
TER
9
7
2
IC5161
C_SWIN
2 5 12 1 3 13
15 14
9,10
4
39 37 35
IC3101
BLANKING
IC3121 IC2131 IC3141
VIDEO_RGB
IC2161
D/A
IC2181
I/O
BLANK_SW
A
V/PC
SYNC_SW
BLKC_DC
C_SWIN
S_SW
7 8
IC1401
DIGIT
AL
BRIGHTER
CONTR
OL
DB0-9 DG0-9 DR0-9
DGB0-9 DGA0-9 DRA0-9
5,4
9,1
TPDHS TPD
VS
TPCLK
DCLK
TURBO_1
DBB0-9
DRB0-9
VIDEO/Y
Pb/Cb
Pr/Cr
IC1581
D/A
IC2571
D/A
TP25G1 TP25G2 TP25B1 TP25B2
TP25R1 TP25R2
IC3551 NRS
3
6
IC3581 NRS
3
7
NRS
VCOM
RGT
DW
N
B-LCD PANEL
G-LCD PANEL
R-LCD PANEL
4,5,6
8 9,18,19 7
13
11 12
IC531
IC1531
S&H_G
IC401
DIGIT
AL
COLOR
UNIFORMITY
CORRECTION
TIMING
CONTR
OL
6,7
13
IC501
IC1501 S&H_B
SCL2_5 SD
A2_5
IC801 SUB CPU
79,78
IC561
IC1561 S&H_R
IC3531
G_LEVEL
SHIFT IC3561
R_LEVEL
SHIFT
22 22
IC301 SCAN
CONVER
TER
SYSTEM CONTR
OL
323 244
240
133 34 133
34
12 10
22 1
16 18 20
IC5211
CG1/CG2 RGB-SW
CG1/CG2 CG1/CG2
5 3 8
12 10
R G B
R G B
IC6171 AFC
DET
16
1
21 22
2
13 11
1 5
4 8
12 10
DHS/D
VS
TP3551
TP3581
14
|
19
5
|
7
12 13
2 3 2 3
S-VIDEO
15
2 3
D
VI BO
ARD
A
V
BO
ARD
MAIN BO
ARD
K25B K25G K25R
K3V
K10V
K3W
K10W
K3T
K10T
K3U
K10U
9 |
40
3 | 6 3
|
12 15 16 39 41 51 52 49 50 45 46 35 36 33 34 19 20
R
H
H
Y/C
Y
Y
C
V
V
Pr
Cr
Cb
Cr
Pb
Cb
Y
CV/Y
CV
H V
G B
R
R
G
G
B
R
G
B
B
PC
: H
AV
:
L
PC
: H
AV
:
L
S-In:
H
Component-In:
H
VSYNC
HSYNC
ANALOG SYNC ANALOG RGB
Fig. 4-2 Video Signal processing diagrams