Toshiba 15LV505 Service Manual page 77

A B
8
7
HCB1608KF-221T20
6
5
4
HCB1608KF-221T20
3
FROM/TO REGULATOR
D1.0V
D1.8V
GND
D3.3V
2
1
A B
H-19
C
SCALER POWER SCHEMATIC DIAGRAM
B2810
W809
B2811
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
SCALER IC
IC2801 R8J66954BG
3.3
AVDDA J4
3.3
AVDDB K4
3.3
3.3
AVDDC L4
E5 VCCQ33
3.3
E6 VCCQ33
3.3
E11 VCCQ33
3.3 Io_Power
U5 VCCQ33
3.3
U8 VCCQ33
0
ADVSS F5
0
G5
ADVSS
0
ADVSS H4
1.0 0
E7 VDD J5
ADVSS
1.0
E9 VDD 0
1.0 L5
ADVSS
E15 VDD
1.0
J9 VDD
1.0
J10 VDD
1.0
3.3
J11 VDD
PLLVDD P4
1.0
J12 VDD
A3.3V
1.0
J13 VDD
1.0
K9 VDD
1.0
K13 VDD
0
1.0 Core_Power
PLLVSS N5
L9 VDD
1.0
L13 VDD 3.3
1.0 DLLVDD T4
M9 VDD
1.0
M13 VDD
1.0
N9 VDD
0
1.0
DLLVSS P5
N10 VDD
1.0
N11 VDD
3.3
1.0 VCC33AD_A
V3
N12 VDD
1.0
N13 VDD
1.0
T5 VDD
1.0 0
VSS33AD_A
U6 VDD W1
1.0
U9 VDD
3.3
VCC33DA_A Y4
0
VSS33DA_A Y3
3.3
VDD33 J3
3.3
VDD33 U4
3.3
0
M4 DVDDABC
VSS33 H5
0
M5 DVSSABC
0
VSS33 R5
D3.3V
3.3
VDD33ADDA V2
0 0
E8 VSS VSS33ADDA U3
0
E10 VSS
0
E12 VSS
0
1.8
K10 VSS
VDD18 K3
0
K11 VSS 1.8
0 VDD18 T3
K12 VSS
0
L10 VSS GND D1.8V
0
L11 VSS
0
L12 VSS
0 0
M10 VSS VSS18 K5
0
M11 VSS 0
0 VSS18 R4
M12 VSS
0
U7 VSS
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D E
F G
TO SCALER VIDEO/AUDIO
AD_A3.3V
W848
W849
B2815
A3.3V
HCB1608KF-121T20
B2816
HCB1608KF-121T20
B2817
HCB1608KF-121T20
B2820
HCB1608KF-121T20
B2821
HCB1608KF-121T20
B2822
HCB1608KF-121T20
F G
H
8
7
6
5
4
3
2
PCBDH0
CEH420
1
H
H-20