Toshiba 14AF45C, 20AF45C Panduan Servis - Halaman 34
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Halaman Cetak
A
B
8
7
C1502
47P CH
0
R1503
0
0.6
1K 1/4W
BUFFER
Q1501
2SA1037AK
6
5
W837
4
3
2
1
A
B
G-13
C
COMB FILTER/AV SCHEMATIC DIAGRAM
(MAIN PCB)
C1505
0.01
B
C1514
10V
100
YK
BUFFER
Q1502
KTC3875S_Y_RTK
R1508
C1511
3.5
2.0
1K
0.01
B
C1512
R1513
2.6
R1518
3.3K
6.8K
16V
100
YK
D.VCC
D.VSS
0
5.2
C1515
KILLER
CKin
0
2.3
0.01
B
TEST
V.FIL
0
2.2
3.5
2.9
L1503
C1509
C1516
BUFFER
120 1/4W
BIAS1
BIAS3
Q1505
10uH 0305
1.2
3.5
3.5
0.01
B
0.01
B
KTC3875S_Y_RTK
R1504
C1522
ADin
C.OUT
2.5
100
2.9
100P CH
C1508
C1517
C1526_1
VRT
BIAS2
2.9
1.5
0.01
0.1
B
B
56P CH
C1510
R1505
L1504
VRB
Y.OUT
2.3
0.01
B
100
15uH 0305
3.5
A.VSS
A.VDD
0
5.1
3
COMB FILTER IC
R1517
3.5
2.2
IC1501
BUFFER
TC90A45FG
Q1507
KTC3875S_Y_RTK
28
YUV_IN(REAR)
J704
29
MSP-213V1-652_NI_LF
LINE1(REAR)
J701
MSP-213V2-432_NI_LF
R733
R726
1K
1K
C733
S-JACK
16V
22
KA
J702
YKF51-5503N
C734
0.1 B
FRONT-VIDEO
J705
MTJ-032-03A-30FE
FRONT-AUDIO.L
J706
MTJ-032-03A-32FE
R745
LINE3_A_IN_L
FRONT-AUDIO.R
J707
MTJ-032-03A-31FE
R746
LINE3_A_IN_R
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
VIDEO SW(Y) IC
IC1502
MM1501XNRE
C1503
R1509
4.5
0
Vin1
SW1
1K
50V
4.7
KA
R1510
0
4.4
GND
V.OUT
220
4.5
7.9
Vin2
Vcc
VIDEO SW(C) IC
IC1503
MM1501XNRE
C1501
R1507
0
4.5
Vin1
SW1
1K 1/4W
16V
10
KANP
0
4.4
GND
V.OUT
4.5
7.9
Vin2
Vcc
R1516
1K
C725
C722
1
F
1
F
C719
1K
1
B
C720
1K
1
B
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
FROM/TO MICON
Y/C_SW
S_IN
FROM/TO CHROMA
Y_V_OUT_SW
C_V_OUT_SW
L1501
P.CON+8V[A]
100uH 0305
P.CON+5V
FSC_OUT
VIDEO_OUT
V_IN[YUV]
U_IN[YUV]
Y_IN[YUV]
VIDEO_IN1
VIDEO_IN3
FROM/TO POWER
GND
FROM/TO SOUND
GND
TO TUNER/STEREO
AUDIO_IN1/1[R]
AUDIO_IN1/1[L]
AUDIO_IN2[L]
AUDIO_IN2[R]
LUMINANCE SIGNAL
COLOR SIGNAL
TUNER VIDEO SIGNAL
F
G
20AF45/20AF45C
H
8
7
6
5
4
3
2
PCB010
CME017
1
H
G-14