KV-20S90 / 21SE43C
— 22 —
5-3. BLOCK DIAGRAM AND SCHEMATICS
BLOCK DIAGRAM
O-ADJ
I-DSC
O-DSC
4
HD
HP/PROTECT
PWM-DC/VOLUME
REF
BOOST
OUT
5
D573
+B
2
3
4
5
7
8
9
10
11
12
14
15
13
1
2
4
3
1
3
4
5
6
8
9
2
10
11
V
L
R
V
L
R
S005
S004
S003
S002
S006
S007
S001
R660
PH600
T604
T603
J201
J202
PC123FY2
3P
3P
5
6
3
1
2
1
2
1
6
5
7
1
KR
KG
KB
2
1
DY ASSY
TUNING CONTROL,
Y/C/J
POWER SUPPLY,DEFLECTION,
H
G2
FV
HV
IC004
DETECTOR
TUNER/IF,AUDIO,MTS
{
}
4
3
2
1
VIDEO OUT
RF AGC
DAT
CLOCK
MUTE
VCC 5V
VCC 9V
VCC 30V
TU101
AFT OUT
BLOCK
ANTENNA
+30V
+5V
+9V
Q252
AGC
REAR A/V
(INPUT)
VIDEO
AUDIO
VIDEO
AUDIO
(INPUT)
FRONT A/V
B-DAT
B-CLK
IC003
MEMORY
NVM 1K BIT
TO V1-L
TO V2-L
B CLK
B DAT
B INT
CN203
POWER
TV/VIDEO
CHANNEL-
VOLUME-
DEMO
AC
IN
DGC
DGC
CN601
CN602
F601
T601
STAND-BY/TIMER
D002
+12V
RY601
CONTROL
TUNING SYSTEM
IC001
CLOSED CAPTION
I-KEY
I-POWERN
I-RMCN
O-DGC
O-RELAY
I-RESET
I-PROT
I-VPN
O-OSDBLK
O-B
O-G
O-R
I-HP
IO-SDAT
O-MUTE
I-HSYNC
I-CVIN
O-VO
O-V1
I-AFT
O-BCLKN
IO-BDAT
I-BINTN
I-AVCC
O-LED
O-VOL
O-AGC
IO-SCLKN
38
36
10
33
14
12
18
31
11
TO S1
TO S2
37
39
34
7
1
52
51
50
49
2
30
24
25
19
17
5
16
22
3
6
13
+7.5V
RY602
AC RECT
D601
IC601
CF001
8MHZ
Q608
Q607
PIT
POWER
CONTROL
IC602
D636
7.5V RECT
D615
+B RECT
D616
AUDIO VCC
D617
12V RECT
AUDIO VCC
+B
12V
9V-REG
SET +9V
STANDBY
+5V
STBY +5V
REG.
IC002
Q605
SET 7.5V
6
1
8
T501
Q501
H DRIVE
HP
Q300
H COMP
Q602
HP/PROT
Q002,003
Y.CHROMA.JUNGLE
MONOUT
IC301
CVBS2/Y2
CVBS1/Y1
TV/C2
R2IN
G2IN
B2IN
YS2/YM
VTIM
VD-
VD+
R OUT
G OUT
B OUT
IK IN
SCL
SDA
ABL IN
6
41
4
43
32
31
30
29
5
34
35
19
14
13
18
21
24
23
22
3
BUFFER
Q305,391
BUFFER
Q390
SW
Q203
Q001
VIDEO
BUFFER
Q205
H.SYNC.
SEP.
IC201
AUDIO SWITCH
S1
V1-L
S2
V2-L
1
2
3
4
5
7
AUDIO OUT
IC401
3
5
7
1
13
11
10
8
BUFFER
Q394
BUFFER
BUFFER
Q393
Q392
IK-BUFFER
Q301,302
V.OUT
IC541
DRIVER-
1
7
3
6
V. BOOST
D502
+13V
V OUT
CN501
TP508
V DRIVE
+B
D502
H OUT
TP506
Q502
H OUT
H DRIVE
SWITCH
D581
SWITCH
D507
Q571
OCP
V.CONTROL HOLD
IC521
HOLD DOWN
REF.
H-PROT
TP503
+180V
TP504
+180V
RECT
D552
-13V
H-PROTECT
D574
TP501
TP502
+13V
115V
2
1
8
7
9
4
T504
FBT
ABL
HEATER
CN502
G2
FV
HV
PICTURE TUBE
20NX
CN1754
CRT DRIVE
V DY(+)
V DY(-)
H DY(-)
H DY(+)
TP507
V MID
CN301
CN401
CN402
SP902
SPEAKER
HEADPHONE
SPEAKER
J400
SP901
(R)
(L)
CN1752
B
G
R
IK
4
3
2
1
4 B
3 G
2 R
1 IK
1
2
3
5
7
8
9
CRT AMP
IC1751
B IN
G IN
R IN
VIP
REFERENCE
IK
R OUT
G OUT
B OUT
BA4D-905-BD
5
6
11
G2
FV
HV
6
-13V
RECT
D561
RECT
+13V
D562
STBY
+5V
6
5
4
3
2
1
2
1
1
2
BUFFER
Q303
+B
Q601
DGC RELAY
RELAY DRIVER
Q606,670
5V REG
Q650
BUFFER
Q556
20
AFCFIL
AUDIO SWITCH
S1
S2
1
2
3
4
5
7
IC202
V1-R
V2-R
L OUT
R OUT
TO V1-R
TO V2-R
+9V
+5V
RGB DRIVE
Summary of Contents for TRINITRON KV-20S90
Page 45: ......
Page 53: ...Connecting Additional Equipment ...
Page 55: ...User Guide ...
Page 63: ......
Page 79: ......
Page 83: ......
Page 86: ......
Page 87: ......
Page 88: ......
Page 89: ......
Page 90: ......