Toshiba MD20Q42 Service Manual page 52

A B
8
FROM REGULATOR
DVD_Y
DVD_C
P.CON+5V
P.CON+8V
7
FROM/TO POWER
GND
TO CRT
CP802A (CP802B)
B2013H02-6P
6 CLAMP OFF
5 B.OUT
6
4 R.OUT
3 G.OUT
2 GND
1 CLAMP
5 FROM/TO MICON/TUNER
HD
VD
OSD_B
OSD_G
OSD_R
OSD_Y
SDA
SCL
VIDEO_OUT
TUNER_VIDEO
4
TUNER_AUDIO
PROTECT
SYNC_VIDEO
H_CONTROL
FSC_OUT
FROM/TO DEFLECTION
V_RANP_FB
V_OUT
ACL
3
AFC
H_OUT
FROM/TO IN/OUT
FRONT_VIDEO
FRONT_A_IN_R
FRONT_A_IN_L
DVD_A_OUT_L2
DVD_A_OUT_R2
VIDEO_OUT
2
TO SOUND AMP
SW_A_OUT_L
SW_A_OUT_R
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
A B
G-23
C
CHROMA SCHEMATIC DIAGRAM
P.CON+8V
PROTECT
0
R646
6.0
SW 33K1/4W
0
Q602
KTC3875S_Y_RTK
29
30
W884
31
R602
P.CON+5V
15K 1/4W D601
ACL
1N4005-EIC
SYNC_VIDEO
W822
W827
W832
R619
47K
R603
2.7K 1/4W
W843
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(AV PCB)
C643
16V 100 KA
C609
C608 16V 100 KA
L601 100uH 0305 0.1 B
IC601
M61277FP-DF0H 8.0
8.0
HI VCC DEF VCC
2.1
R609
2.2
R OUT H OUT
100
0.9
R610
2.1
G OUT FBP IN
100
R643 0
2.1
B OUT DEF GND
100
R605 3.5
1.8
ACL AFC FILTER
27K
0.8 3.5
MONITOR OUT HVCO F/B
3.1
C644_1
3.3
AUX2(R) IN VRAMP CAP
1 B
3.9
5.0
HD OUT VRAMP OUT
4.8
3.9
VD OUT VRANP F/B
0 2.9
OSD B IN AUDIO ATT FILTER
0 3.2
OSD G IN AUDIO ATT OUT(L)
0 2.9
OSD R IN FSC OUT
0 3.1
AUX1(R) IN
FASTBLK
4.6 2.2
SDA Y(Y/C) IN
4.8 2.3
SDL C(Y/C) IN
C605_1
2.4 VIDEO LINE OUT 3.5
AUDIO ATT OUT(R)
1 B
0 3.1
V/C GND SPINAU MONO IN
X602
28
C632 3.579545MHz
3.2 2.4
XTAL 358 CVBS1 IN
100CT3R505
18P CH
C631
S809X 2.9 3.1
C APC AUX1(L) IN
S810X
0.015 B
2.1 2.0
R618
CVBS3 IN CVBS2 IN
NC
8.2K
C601_1
3.1 5.0
AUX2(l) IN V/C VCC
1 B
C604
16V 100 KA
C638
16V 100 KA
C633
0.01 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
L603
P.CON+8V
0305 100uH
C628
0.01 B
33
R650
H_OUT
1K 1/4W
34
R641 R612
AFC
8.2K 1.8K 1/4W
SW
Q601
0 KTC3875S_Y_RTK
C616 H_CONTROL
5.0
5.0
0.01 B
C610
R611
4.4
4.3
50V 1 KA 6.8K
9.0 SW
C612
Q605
KRA102SRTK P.CON+8V
0.01 B
C607
63V 1 MKT
32
R614
V_OUT
100 1/4W
R644
V_RANP_FB
C626
27K
SW_A_OUT_L
C615
W867 50V 2.2 KA
FSC_OUT
50V 1 KA
C645
W850
DVD_A_OUT_R2
50V 1 KA
C642
DVD_Y
50V 1 KA
C641
DVD_C
0.1 B
C627
SW_A_OUT_R
50V 2.2 KA
C624
R623
TUNER_AUDIO
R63947K
50V 1 KA 1K 1/4W
27
C618
TUNER_VIDEO
50V 1 KA
C625
W853
DVD_A_OUT_L2
50V 1 KA
C621
FRONT_VIDEO
50V 1 KA
L604
P.CON+5V
10uHTSL0808
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
4
3
2
PCBD20
CME066
1
H
G-24