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Scaler2 - Akai CFTD2052 Service Manual

Lcd color television/dvd video player
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A
B
8
7
6
NC
NC
0.2
0.3
5
4
NC
NC
5
OUT
IN
GND
1
2
3
3.3
3.3
0
C871
D801
R830
50V
1
V-S
MCL4148
10K
NLCV32
L817
P.CON+3.3V
22uH
FROM/TO DECODER
4
P.CON+3.3V
P.CON+2.5V
GND
P.CON+1.5V
D_3.3V
GND
SCALER_V_OUT
R831
SDA
R832
100
SCL
3
100
GND
2
1
A
B
G-31
C
D
SCALER2 SCHEMATIC DIAGRAM
(LCD PCB)
SCALER IC
IC801
(4/5 DRAM VDD)
TC90288XBG
0
C15
TST2_IN[4]
DIG_CLK_OUT
C11
NC
0
D15
TST2_IN[3]
DIG_HD_OUT
A10
NC
0
A16
TST2_IN[2]
DIG_VD_OUT
E12
NC
0
C16
TST2_IN[1]
DIG_FIELD_OUT
D12
NC
0
D16
TST2_IN[0]
DIG_OUT[7]
D11
NC
0
D22
TSTD_IN[15]
DIG_OUT[6]
E10
NC
0
C22
TSTD_IN[14]
DIG_OUT[5]
D10
NC
0
D21
TSTD_IN[13]
DIG_OUT[4]
C10
NC
0
C21
TSTD_IN[12]
0
B21
TSTD_IN[11]
0
A21
TSTD_IN[10]
DIG_OUT[3]
B10
NC
0
D20
TSTD_IN[9]
DIG_OUT[2]
B9
NC
0
C20
TSTD_IN[8]
DIG_OUT[1]
A9
NC
0
B20
TSTD_IN[7]
DIG_OUT[0]
A8
NC
0
A20
TSTD_IN[6]
0
E19
TSTD_IN[5]
0
D19
TSTD_IN[4]
0
C19
TSTD_IN[3]
0
B19
TSTD_IN[2]
0
0
A19
TSTD_IN[1]
SMODE
AC21
0
D18
TSTD_IN[0]
0
TMODE
C14
2.3
MONITOR
D14
0
B15
TSTCKDSP
0
B16
TSTCK108
0
A17
TSTOE_IN
0
1.5
B17
TST_HD_IN
DRAM21VDD1
G24
0
C17
TST_VD_IN
0
A11
TRST
0
DRAM2GND6
G25
1.5
DRAM21VDD2
H23
0
DRAM2GND2
H24
0
1.5
D17
TSTMODE[4]
DRAM21VDD5
K24
0
E17
TSTMODE[3]
0
A18
TSTMODE[2]
0
0
B18
TSTMODE[1]
DRAM2GND1
L23
0
C18
TSTMODE[0]
0
A15
MBIST
1.5
DRAM21VDD3
N24
0
A12
TDI
0
0
A14
TMS
DRAM2GND3
N23
NC
B12
TDO
0
B14
TCK
1.5
DRAM11VDD2
H3
0
DRAM1GND2
G2
1.5
DRAM12VDD1
E4
3.3
0
H25
RESET
DRAM1GND3
D3
0
AC24
BUSSEL
1.5
DRAM22VDD1
G23
3.3
J23
SDA
3.3
0
J24
SCL
DRAM2GND5
F26
0
G4
CSYNC_IN
1.5
DRAM21VDD4
B11
NC
F3
SYNC_OUT
0
NC
Y5
VBIREADY
DRAM2GND4
C12
0
H1
DTCLK
1.5
DRAM11VDD1
F4
0
J2
DTMB
0
DRAM1GND1
E3
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
F
W810
D_1.5V
C820
SCALER IC
4V
47
V-S
IC801
(5/5 SCALER VDD)
TC90288XBG
C896 0.1 B
C897 0.01 B
1.5
3.3
E7
VDDC
VDDS
E9
C898 0.01 B
1.5
3.3
E11
VDDC
VDDS
E18
C899 0.01 B
1.5
3.3
E16
VDDC
VDDS
J5
C807 0.01 B
1.5
3.3
E20
VDDC
VDDS
J22
C811 0.01 B
D_3.3V
1.5
3.3
G5
VDDC
VDDS
V5
C812 0.01 B
1.5
3.3
G22
VDDC
VDDS
V22
GND
C813 0.01 B
1.5
3.3
L5
VDDC
VDDS
AB18
C814 0.01 B
1.5
L22
VDDC
SCALER_V_OUT
C815 0.01 B
1.5
T5
VDDC
D_1.5V
C816 0.01 B
W811
1.5
T22
VDDC
C818 0.01 B
1.5
Y22
VDDC
P.CON+1.5V
C819 0.01 B
1.5
AB20
VDDC
0
0
A1
VSS12
VSS12
P3
0
0
A2
VSS12
VSS12
P4
0
0
A13
VSS12
VSS12
P5
0
0
A25
VSS12
VSS12
P11
0
0
A26
VSS12
VSS12
P12
0
0
B1
VSS12
VSS12
P13
0
0
B2
VSS12
VSS12
P14
0
0
B13
VSS12
VSS12
P15
0
0
B25
VSS12
VSS12
P16
0
0
B26
VSS12
VSS12
P22
0
0
C3
VSS12
VSS12
P23
0
0
C13
VSS12
VSS12
P24
0
0
C24
VSS12
VSS12
P25
0
0
D4
VSS12
VSS12
P26
0
0
D13
VSS12
VSS12
R11
0
0
D23
VSS12
VSS12
R12
0
0
E5
VSS12
VSS12
R13
0
0
E6
VSS12
VSS12
R14
0
0
E13
VSS12
VSS12
R15
0
0
E14
VSS12
VSS12
R16
0
0
E21
VSS12
VSS12
T11
0
0
E22
VSS12
VSS12
T12
0
0
F5
VSS12
VSS12
T13
0
0
F22
VSS12
VSS12
T14
0
0
L11
VSS12
VSS12
T15
0
0
NLCV32
L12
VSS12
VSS12
T16
0
0
L819
L13
VSS12
VSS12
W1
P.CON+2.5V
0
0
L14
VSS12
VSS12
W2
0
0
22uH
L15
VSS12
VSS12
W3
0
0
L16
VSS12
VSS12
W4
0
0
M11
VSS12
VSS12
W5
0
0
M12
VSS12
VSS12
AA5
0
0
M13
VSS12
VSS12
AA22
0
0
M14
VSS12
VSS12
AB17
0
0
M15
VSS12
VSS12
AB21
0
0
M16
VSS12
VSS12
AB22
0
0
N5
VSS12
VSS12
AC17
0
0
N11
VSS12
VSS12
AC23
0
0
N12
VSS12
VSS12
AD17
0
0
N13
VSS12
VSS12
AD24
0
0
N14
VSS12
VSS12
AE17
0
0
N15
VSS12
VSS12
AE25
0
0
N16
VSS12
VSS12
AE26
0
0
N22
VSS12
VSS12
AF17
0
0
P1
VSS12
VSS12
AF25
0
0
P2
VSS12
VSS12
AF26
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
E
F
G
H
NLCV32
L821
P.CON+3.3V
22uH
C821
GND
4V
47
V-S
C822 0.1 B
C824 0.01 B
C825 0.01 B
C826 0.01 B
C827 0.01 B
C828 0.01 B
C829 0.01 B
C830 0.01 B
PCB340
TEDB66
G
H
8
7
6
5
4
3
2
1
G-32

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