Akai PDP4273M Service Manual page 27

1 2
5V_E 5V_E
R748 R761
Cb Cr
Q733 Q734
D GYCbCr_Cb GYCbCr_Cr
C759 C762
C760 R749 C763 R763
SGND SGND
A5V
L738
JP701
C711
2 Pr_in
C710
1 Cr_in
4 Pb_in
SGND
3 Cb_in
6 HD_Y_in
R741
C736
5 YUV_Y_in
R742
R736
SGND SGND AGND
L750
C
Cb_in Cb_in#
5V
C740
D701
R750
SGND
L751
Cr_in Cr_in# C738
5V
D702
C742 R751
R737
SGND
L752
YUV_Y_in YUV_Y_in#
5V
C744
D703
R752
B
C751
SGND
L753
Pb_in
YPbPr_Pb
5V
R738
D704
C746 R753
SGND
L754
Pr_in
YPbPr_Pr
5V
DVI_R_IN#
D705
C748 R754
VGA_R4#
YPbPr_R_IN#
SGND YUV_R_IN#
L755
HD_Y_in
A
YPbPr_Y
DVI_L_IN#
5V
R755 VGA_L4#
C750
D706
YPbPr_L_IN#
YUV_L_IN#
SGND
1 2
3 4
5V_E
R765
Y
TV_M
Q735
GYCbCr_Y
C765
C766 R767
L748
A5V
SGND
5V_E
R787
C702
R721
R719
GYCbCr_Cb
TV_S
R730
Cb
Q701
L749
A5V
VYCbCr_Cb
C737
R720 C753 R722
R790
C706
SGND 5V_E
R723 R725
GYCbCr_Cr
R731
Cr
Q702
VYCbCr_Cr
C739 P15V330 Truth Table
R724 C754
R726
IN EN ON Switch
0 0 S1A S1B S1C S1D TT_FSO
1 0 S2A S2B S2C S2D
x 1 Disabled
SGND TT_SEL
5V_E
R727 R729
GYCbCr_Y
R794
A5V 5V
R732
Y
Q703
R791
VYCbCr_Y
C714 C713
C752
R728 C755
R788
SGND
SGND
+8V
R756
R_O 8V_4052 L756
R757
C789 C790
AGND
C787
C722
R758
L_O
R759
C723
AGND
AGND U701
C724 AV_R1 12 13 R_O C756 AV_ROUT
Y0A ZA
AV_R2 14
Y1A
AV_R3 15 3 L_O C757 AV_LOUT
C726 Y2A ZB
AV_R4 11
Y3A
C719 AV_L1 1 9
Y0B A1
AV_L2 5 10
Y1B A0
AV_L3 2
C720 Y2B
AV_L4 4 6
Y3B E
R792
SEL1
C721 SEL1
C743 Q704
C725
AGND
3 4
5 6
R705 V_TVCVBS
V_TVCVBS
U702
C701 1 8 C703
VIN GSEL
2 7
ENABLE VF
R703
3 6
RFC VOUT
C704
4 5
VCC GND
R704
R702
R701
Cutoff requency : 6.4MHz
SGND
G_TVCVBS
R710
G_TVCVBS
U703
C705 1 8 C707
VIN GSEL
2 7
ENABLE VF
R708
3 6
RFC VOUT
C708
4 5
VCC GND
R707 R709
R706
Cutoff frequency : 6.4MHz
A5V
SGND L739
C709
TT_R 2 SGND
TT_R S1A
SC1_R 3 4 V_TT_R
S2A DA V_TT_R
TT_G 5
TT_G S1B
SC1_G 6 U704 7 V_TT_G
S2B DB V_TT_G
TT_B 11
TT_B S1C
SC1_B 10 9 V_TT_B
S2C DC V_TT_B
TT_FSO 14
S1D
SC1_BOX 13 12 V_TT_FSO
S2D DD V_TT_FSO
TT_SEL 1
IN
15
EN
SGND
SGND
R772 R784
SC2_BOX V2
R773 R785
SC2_R C2
R774 R786
C715 C716 C718 SC2_G Y2
R775
SC2_B
SGND SGND
YUV_L_IN#
8V_4052
YUV_R_IN#
R72
AV_R1
YPbPr_L_IN#
R70
R73
AV_R2
YPbPr_R_IN#
R74
AV_R3
R75
AV_R4
8V_4052
R76
AV_L1
R71
R77
AV_L2
R740 R739
R78
AV_L3
R79
AV_L4
AGND
R793
SEL0
SEL0
Q705 C741
5 6
25／72
7 8
R735
V_SVideo_Y
R745
G_SVideo_Y
G_SVideo_Y
R734
V_SVideo_C
R744
G_SVideo_C
G_SVideo_C D
R733
V_AVCVBS
R743
G_AVCVBS
G_AVCVBS
SCL_S5V
SCL_S5V
SC2_SW
SC2_SW
GPIO_P31
GPIO_P31
GPIO_P30
GPIO_P30
GPIO_P32 49 50
GPIO_P32
GPIO_P33 47 48
GPIO_P33
SC2_BOX 45 46
R768
G_TT_FSO
SC2_R 43 44
R769
G_TT_R
R770 SC2_G 41 42
G_TT_G
R771 SC2_B 39 40
G_TT_B
SC1_SW 37 38
SC1_SW
SC1_BOX 35 36
SC1_R 33 34
SC1_G 31 32
A5V SC1_B 29 30 A5V
27 28
SDA_S5V 25 26
SDA_S5V
3450_rest 23 24
3450_rest
MUTE 21 22
MUTE
SP_RELAY 19 20
SP_RELAY
3230_VO 17 18
3230_VO
TV_M 15 16
TV_S 13 14
C
V_AVCVBS 11 12 V2
V_AVCVBS
V_SVideo_C 9 10 C2
V_SVideo_C
V_SVideo_Y 7 8 Y2
V_SVideo_Y
AV_LOUT 5 6
AV_ROUT 3 4 C2
+8V 1 2 V2
Y2
JP703
AGND SGND
R776
DVI_L_IN# DVI_L_IN 3
R780
DVI_R_IN# DVI_R_IN 2
JP705
AGND
JP707
B
R777
VGA_L4# VGA_L4 3
4
R781
VGA_R4# VGA_R4 2
1
AGND
JP704
R779 YUV_L_IN 3
R783 YUV_R_IN 1
R778 YPbPr_L_IN 4
YPbPr_R_IN 2
R782
A
AGND
Title
7-VIDEO&AUDIO IN
Size Number Revision
A3
Date: 14-Oct-2005 Sheet of
File: F:\4228\4228_temp_ddb\4228_Temp.DDB Drawn By:
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