Sony TRINITRON KV-20FV10 Service Manual page 32
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Also See for TRINITRON KV-20FV10:
- Operating instructions manual (41 pages) ,
- Operating instructions manual (38 pages) ,
- Operating instructions manual (41 pages)
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KV-20FV10/21FV10/21FV10C/25FV10A
A BOARD IC BLOCK DIAGRAMS
A BOARD: IC202 NJM4558M-TE2
V+
OUT1
8
1
-
+
IN1
OUT2
2
7
+
-
IN1
6
IN2
3
V -
4
IN2
5
A BOARD: IC404 TDA8580Q/N1
A BOARD: IC203 MM1313AD
Vcc
38
MTV-V
41
IN 1
V1-V
1
34
6dB
V OUT1
V2-V
7
13
V3-V
27
STV-V
IN 2
6dB
23
V OUT2
31
Y IN1
V1-Y
3
37
Y OUT1
V2-Y
9
6dB
29
C IN1
0dB
V1-C
5
0dB
-6dB
39
C OUT1
V2-C
1 1
6dB
MTV-L
42
V1-L
2
33
L OUT1
-6dB
V2-L
8
V3-L
14
STV-L
25
22
L OUT2
N 3
N 5
MTV-R
40
V1-R
4
32
R OUT1
-6dB
V2-R
10
16
IN 4
V3-R
24
R OUT2
26
STV-R
6
S1
MUTE
BIAS
36
BIAS
12
S2
SCL
19
21
ADDRESS
STANDBY
2
I C LOGIC
SDA
20
28
MUTE
30
GND
— 46 —
871 A Board Pinouts.p65
1
A BOARD: IC301 CXA2131S
(KV-20FV10/21FV10/21FV10C)
45
47
46
40
1
15
39
44
8
FSC
<FSC SW>
APC
DEMOD.
<HUE>
C VCO
DPIC
<DPIC>
<AGING>
<AGING2>
CHROMA
COLOR KILLER
ACC DET.
AMP
<<KILLER ID OFF>>
CLAMP
DC TRAN
RGB CLAMP
FILTER ALIGNMENT
<DC TRAN>
BPF
CAL. by fsc
<C BPF>
ACC AMP
CHROMA
SHARPNESS DL
SHARPNESS AMP
TV/C2 IN
43
CHROMA SW
ATT
TRAP + EQ
<SHARPNESS>
<TRAP OFF>
<SHP F0>
<PRE/OVER>
C1 IN
2
Y SW
Y
CVBS2/Y2 IN
41
COUNTDOWN
LINE COUNTER
CVBS1/Y1 IN
4
<CD MODE>
V TIM GEN.
VSAW GEN
<INTERLACE>
<JUMP SW>
VTIM
V SYNC SEP
<REF P>
MONITOR SW
<VSS>
<VBLKW>
COMB-C IN
7
VIDEO SW
H SYNC SEP
COMB-Y IN
9
<HSS>
<H MASK>
PHASE DET.
<VIDEO SEL>
AFC
MON OUT
6
H TIM GEN.
<H POSITION>
<S SEL>
<AFC GAIN>
HSAW GEN.
<H BLK>
<AFC BOW>
<FH HIGH>
<HOSC>
<LEFT HBLK>
<AFC ANGLE>
<<HLOCK>>
(ZAP)
<RIGHT HBLK>
HPROT
<<HCENT>>
<<HNG>>
20
17
5
V P1
V P2
3
15
7
A BOARD: IC402 BH3868FS
45 k
+
60
-
V/l
1
-
k
OA
OUT 1 +
+
TDA8580Q/N1
S C L
8
+
S D R
4
+
OA
OUT 2 -
60
-
V/l
B C
V px
k
-
45 k
V px
V C 1
45
k
O U T 1
30 k
9
BUFFER
T R E 1
BUFFER
BUFFER
45
k
B A S 1
45 k
+
B T R E B 1
60
-
V/l
14
k
-
OA
OUT 3 -
10
+
B T R E A 1
B B A S B 1
12
+
17
+
OUT 4 +
60
OA
B B A S A 1
-
V/l
k
-
11
I N 1
45 k
13
P S 2
INTERFACE
6
P S 1
5
DIAGNOSTIC
DIAG
A G C A D J
2
16
F I L T E R
PGND2
PGND1
— 47 —
A BOARD: IC301 CXA2135S
37
36
28
27
26
25
32
31
30
29
38
EYUV CLAMP
42
ABL FIL
YUV SW
<YSEL>
YUVOUT
3
ABL IN
<YUVOUT>
ABL/PEAK LIM
CLAMP
<ABL MODE>
AKB
COLOR AMP
21
IK IN
RGB 1/2
<ABL VTH>
<<IKR>>
<COLOR>
<C OFF>
AXIS
<AXIS NTSC>
<AXIS PAL>
24
B OUT
23
G OUT
Y/C MIX
22
R OUT
VPROT
<<VGN>>
I C BUS
2
DAC
35
SDA
VM AMP
DECODER
SW
<VM LEV>
STATUS I/F
(OFF YS/YM)
34
SCL
WIDE SAW FUNC.
VD SAW FUNC.
14
VD-
<VON>
<S CORRECTION>
<ASPECT>
<V SIZE>
<V LINEARITY>
<SCROLL>
<V POSITION>
<EHT COMP>
13
VD+
<UPPER VLIN>
<LOWER VLIN>
<V ZOOM>
EW PARABOLA FUNC.
<JUMP SW>
<H SIZE>
<TRAPEZIUM>
11
EW
<PIN AMP>
<EW DC>
<UPPER CPIN>
<LOWER CPIN>
HD GEN.
IREF
REG
<HD W>
18
19
10
12
16
33
C H I P
V C C
T C
V C 2
O U T 2
T R E 2
B A S 2
B T R E B 2
B T R E A 2
B B A S B 2
B B A S A 2
I N 2
S O U T
L S 2
L S 1
BH3868FS
G N D
6/8/99, 10 24 AM
(KV-25FV10A ONLY)
A BOARD IC541 TDA8172
Output
Supply
Flyback
State Supply
Voltage
Generator
2
6
3
FLYBACK
GENERATOR
Inv. Input
1
-
Power
5
Output
Amplifier
Non-Inv. Input
7
+
THERMAL
PROTECTION
TDA8172
4
Gnd
— 48 —
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