Chroma/sif/vif/21pin schematic diagram, Main pcb), G-3 g-4 – Toshiba 14N21NS User Manual
Page 23
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
S101X
S101Y
IC201
STV2246C
CHROMA
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
54
55
56
6
7
8
9
L703
10uH
L702
10uH
L204
10uH
L203
1uH
Q603
2SC2412K
H.CONT
Q204
2SC2412K
SIF BUFFER
Q602
2SC2412K
PROTECT
Q605
2SC2412K
BUFFER
Q202
2SC2412K
BUFFER
Q601
2SC2412K
RGB SW
Q201
KTC3881S-RTK
VIF PRE.AMP
J701
0350_9982_05
21PIN
1
10
11
12
13
14
15
16
17
18
19
2
20
21
3
4
5
6
7
8
9
CF201
TPS5.5MB-TF21
OUT
OUT
G
IN
IN
CF202_3
TSF5330U
1
2
3
4
5
CF205
MKT40.4MA110P
C634
47
16V
KANP
L207
3700005
VCO COIL
1
2
34
6
CAUTION: DIGITAL TRANSISTOR
R615
1.5K
R617
1K
R629
270
R628
270
R607
22K
R610
1.2K
R611
3.3K
R612
3.3K
R613
3.3K
R638
2.2K
R602
100
R643
470
R645
2.2K
R608
47K
R616
1.5K
R614
1.5K
R703
10K 1/4W
R714
75
R713
75
R706
1K 1/4W
R707
1K 1/4W
R708
1K
R709
75
R605
220
1/4W
R218
150
R636
47K
R644
2.7K
R208
1K
R646
8.2K
R639
5.6K
R641
22K
R621
560
1/4W
R620
270 1/4W
R601
4.7K
R619
10K
1/4W
R647
560 1/2W
R205
560
R618
10K
R623
1K
R702
3.3K
R719
100K
R630
270
R204
330
R715
75
R221
75
R606
100
R219
1K
R622
330K
R625
75
R217
1K
R640
27K
R203
1K
R214
2.2K
R215
6.8K
R213
220
1/2W
R202
330
R201
82
C617_1
22 16V KA
C216
22
50V
YK
C602
1
50V
KA
C610
100
16V
YK
C611
3.3
50V
KA
C209
10
16V
KA
C631
33
50V
YK
C632
10
16V
KA
C629
10
16V
KA
C217
47
16V
YK
C604
1
50V
KA
C220
470
10V
YK
C210
1
50V
KA
C613
470
10V
YK
C215
0.1
B
C625
47P
CH
C612
0.0015
B
C601
47P
CH
C616
0.0047
B
C608
0.1
B
C622
0.1
B
C623
0.1
B
C701
470P
B
C620
0.1
B
C619
0.1
B
C618
0.1
B
C703
470P
CH
C207
0.33
B
C205
0.001
B
C609
0.1
B
C614
1B
C605
1B
C201
3P CH
C213
1B
C203
0.01
B
C212
0.001 B
C630
0.1
B
C202
0.001
B
C218
0.022
B
C615
1B
C603
1F
C607
1F
C624
0.01
B
C221
0.1
B
C204
0.0022 B
X601
4.433619MHz
X602
3.579545MHz
CF303
MKT41.5MA110P
D602
1SS133
D603
1SS133
D604
11E1-EIC
D609
1SS133
D610
1SS133
D611
1SS133
L601
10uH
0305
L202
3.3uH
0305
W838
W835
W822
W829
D607
MTZJ6.8B
D608
MTZJ6.8B
D606
MTZJ6.8B
D709
MTZJ5.1B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
Q604
KRA102SRTK
PROTECT
P.CON+8V
GND
P.CON+5V
AUDIO_OUT
FRONT_VIDEO_IN
SW_AUDIO_IN
SCART_AUDIO
B.OUT
G.OUT
R.OUT
TU/RGB
H_OUT
IF
VAMP
RF_AGC
ABCL
V_OUT
H_CONT
AFC
SDA
SCL
HD
PROTECT
V_OUT
VIDEO_OUT
CVBS_TXT
OSD_B
OSD_G
OSD_R
OSD_FB
FOR_VCR
9
(MAIN PCB)
CHROMA/SIF/VIF/21PIN SCHEMATIC DIAGRAM
PCB010
TMB537
17
16
15
14
13
12
11
7
10
8
FROM/TO MICON/TUNER
FROM/TO MICON/TUNER
1.7
3.4
3.6
3.4
0
3.2
2.8
3.2
0
4.1
7.8
3.9
3.8
2.4
3.8
4.9
3.6
0
0
4.2
NC
0
0
0
4.4
NC
NC
NC
NC
FM_OUT
VCC2
CVBSIN1
GND2
CVBSIN2
BS
B.OUT
G.OUT
R.OUT
OSD_B
OSD_G
OSD_R
OSD_BK
XTAL3
XTAL2
XTAL1
CLPF
X1/VAMP/CHR_OUT
GND1
VCC1
BCL/SAF
VERT
H_OUT
LBF/SSC
SLPF
SCL
SDA
VCC_D
GND_D
AUDIO_OUT
FM_CAP
SIFIN1
SIFIN2
AGCSIFCAP
(5V)
(8V)
(8V)
PIFIN2
VREF_IF
AGCPIF_CAP
PIFIN1
RF_AGC_OUT
IFPLL
GND_IF
(5V)
VCC_IF
EXT_AUDIO_IN
INT_CVBS_OUT
PIF_LC1
PIF_LC2
Y/CVBS_IN3
CHR
APR
B_EXT/U_EXT
G_EXT/Y_EXT
R_EXT/V_EXT
BLK_EXT
ICATH
4.5
2.0
1.7
2.6
1.7
1.7
4.5
4.8
4.2
4.1
0.2
2.2
2.4
2.8
5.0
7.8
5.4
4.6
2.0
5.2
5.0
5.0
4.9
4.5
1.5
2.7
2.8
4.8
3.1
2.7
2.5
2.5
NC
CVBSOUT
NC
NC
FROM/TO POWER
FROM/TO SOUND AMP
NC
FROM/TO DEFLECTION/CRT
2.9
7.9
2.28
0
0
0
0.8
7.0
1.5
5.0
3.9
3.2
5.1
0.4
0
8.3
0
8.3
8.3
0
0
4.6
4.0
8.3
G-3
G-4