Read Sharp LC-28HM2E (serv.man3) Service Manual online
58
LC-28HM2
AN-28SP2
6
5
4
3
2
1
A
B
C
D
E
F
G
H
MULTI COLOR SYSTEM BLOCK DIAGRAM
IX3282CE
BU4053V
ADC704++
T
A1318AN
NRON/
NR-OFF_2
IC6004
N358-C
N358-C
SECAM C
COMB
Y
COMB C
VIDEO1
3
INPUT
V1
2_Y
INPUT
V1
2_C
INPUT
BPF
IC401
INPUT
SELECT
3
10
5
5
8
1
2
1
5
6
8
5
3
4
9
15
IC6004
VIDEO
SWITCH
9(H)
6
8(L)
1(H)
3
16(L)
IC853
DIGIT
AL
Y/C SEP.
2
5
3
2
3
IC6009
VIDEO SWITCH
16(L)
3
1 (H)
14(H)
1
1(L)
5
9(H)
8(L)
6
3D
Y/C SEP.NR
for NTSC
1
1(L)
5
14
PAL/NTSC
SECAM
S/VIDEO
IC6010
VIDEO SWITCH
5
3
1
IC801
VIDEO/CROMA
SYNC.
1
3
1
5
4
5
6
1
7
51
52
53
3
1
IC2802
Color
TV
SECAM
24
10
1
1
14(V_VSync)
15(V_HSync)
SC503
INPUT
SIGNAL
T
O
PC BOARD
3 (PCR)
1(PCB)
2(PCG)
CLAMP
AMP
IC7201
37
AUT
OWIDE
IC1901
3
SYNC. SEP.
4
2
1
2
3
1
5
IC2801
1Hdelay
29
(B
Y)
26
30
(R
Y)
27
C1.
Y
C1.
PB
C1.
PR
C2.
Y
C2.
PR
C2.
PB
R
B
G
IC402
IN-SELECT
9(H)
6
8(L)
IC406
P-SELECT
1,14,9(H)
3,5,6
16,1
1,8(L)
IC415~417
P-SELECT
9
4
8
2
Y
Y
B
Y
R
Y
PCG,
PCR,
PCB
Y_SEL,
PB_SEL,
PR_SEL
R
Y
B
LPF
IC407
VIDEO SWITCH
(
L
)
(
H
)
NR-ON/
N
R-OFF
PAL/NTSC
PASS/
NR_COMB
480i
N358
CVIDEO
Y
C
R
-Y
,B
-Y
C
V
ID
E
O
PA
L
Y
PALM
C
N443
SECAM
CVIDEO
Y
C
JUGDEMENT
of COLOR SYSTEM
C
V
ID
E
O
/Y
C
CXA2069Q
TC9090A
F
NJM2283V
IC7001
PD64082
NJM2283V
IX3323CE
T
AI229N
NJM2235M
NJM2234M
M52055FP
T
A8772AN
M52055FP
(L)
(H)
(L)
(H)
Q6015
Q6017
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