Sony KV-25FV10, Service Manual

Page: 36 / 58

CHROMA SW
Y SW
MONITOR SW
VIDEO SW
<VIDEO SEL>
<S SEL>
43
6
2
4
7
9
41
TV/C2 IN
MON OUT
COMB-C IN
CVBS1/Y1 IN
CVBS2/Y2 IN
C1 IN
COMB-Y IN
ACC DET.
ACC AMP
CHROMA
ATT
V SYNC SEP
<VSS>
H SYNC SEP
<HSS>
<H MASK>
SHARPNESS DL
SHARPNESS AMP
<SHARPNESS>
<SHP F0>
<PRE/OVER>
FILTER ALIGNMENT
CAL. by fsc
COUNTDOWN
<CD MODE>
<INTERLACE> LINE COUNTER
V TIM GEN.
<JUMP SW>
<REF P>
<VBLKW>
VSAW GEN
VTIM
AFC
<AFC GAIN>
<FH HIGH>
<<HLOCK>>
<<HCENT>>
HSAW GEN.
<HOSC>
(ZAP)
H TIM GEN.
<H BLK>
<LEFT HBLK>
<RIGHT HBLK>
PHASE DET.
<H POSITION>
<AFC BOW>
<AFC ANGLE>
HPROT
<<HNG>>
HD GEN.
<HD W>
IREF REG
20
AFC FIL
17
SCP
33
VCC1
16
REG
12
1 REF
10
GND1
19
HD
18
HP/PR
O
TECT
5
V TIM
WIDE SAW FUNC.
<ASPECT>
<SCROLL>
<UPPER VLIN>
<LOWER VLIN>
<V ZOOM>
<JUMP SW>
VD SAW FUNC.
<VON>
<V SIZE>
<V POSITION>
<S CORRECTION>
<V LINEARITY>
<EHT COMP>
DAC
SW
VPROT
<<VGN>>
VM AMP
<VM LEV>
(OFF YS/YM)
I C BUS
DECODER
STATUS I/F
2
CLAMP
DC TRAN
<DC TRAN>
DPIC
<DPIC>
<AGING>
<AGING2>
COLOR KILLER
<<KILLER ID OFF>>
CHROMA
AMP
TRAP + EQ
<TRAP OFF>
BPF
<C BPF>
APC
<HUE>
C VCO DEMOD.
FSC
<FSC SW>
Y/C MIX
RGB CLAMP
COLOR AMP
<COLOR>
<C OFF>
AXIS
<AXIS NTSC>
<AXIS PAL>
CLAMP
RGB 1/2
ABL/PEAK LIM
<ABL MODE>
<ABL VTH>
AKB
<<IKR>>
EW PARABOLA FUNC.
<H SIZE>
<PIN AMP>
<UPPER CPIN>
<TRAPEZIUM>
<EW DC>
<LOWER CPIN>
Y
EYUV CLAMP
YUV SW
<YSEL>
YUVOUT
<YUVOUT>
42 ABL FIL
3 ABL IN
21 IK IN
24
B OUT
23 G OUT
22 R OUT
35 SDA
34
SCL
14 VD-
13
VD+
11 EW
29 30 31 32 25 26 27 28 36 37 38 39 15 1 8 40 44 46 47 45
YS2/YM B2 IN (B-Y
OUT)
G2 IN (R-Y
OUT)
R2 IN (Y
OUT)
YS1 B1 IN G1 IN R1 IN YUV SW EY IN ER-Y IN EB-Y IN VM OUT/ V PR
O
T
YS1 SW
<RGB SEL>
YM SW YS2 SW
D
YNAMIC COLOR <D
YNAMIC C>
PICTURE AMP
<PICTURE> GAMMA AMP
<GAMMA>
CLAMP
BRIGHT CONT
<BRIGHT>
DRIVE AMP
<R/G/B DRIVE> CUT
OFF CONT
.
<R/G/B CUT
OFF>
R/G/B BLK
<PON>
<R/G/B ON>
APED Y CLAMP GND2 Vcc2 FSCOUT Xtal APC FIL
— 48 — — 49 — — 50 —
1
2
34
5
6
7
89
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17 S C L
S D R
B C
V C 1
O U T 1
T R E 1
B A S 1
B T R E B 1
B T R E A 1
B B A S B 1
B B A S A 1
I N 1
P S 2
P S 1
A G C A D J
F I L T E R
L S 1
G N D
S O U T
L S 2
B B A S A 2
I N 2
B T R E A 2
B B A S B 2
B A S 2
B T R E B 2
O U T 2
T R E 2
T C
V C 2
C H I P
V C C
VCC
LOGIC
CONTR
OL
VO
L
VO
L
VRE
T
ONE
T
ONE
L+S R-S
BBE BBE
LPF AMP
PHAS
SHFT
L-R L+R
VO
L
VO
L
AG
C
BIAS
BH3868FS
30
6dB
1
2
3
4
7
8
9
10
11
13
14
26
5
40
41
6dB
-6dB
6dB
6dB
BIAS
I C LOGIC
2
27
42
25
36
29
12
23
34
6
37
39
33
22
32
24
21
28 20
16
19
38
-6dB
-6dB
0dB
0dB
Vcc
BIAS
SCL
SDA
V OUT1
Y IN1
Y OUT1
C OUT1
S1
S2
ADDRESS
MUTE
V OUT2
31
C IN1
L OUT1
L OUT2
R OUT1
R OUT2
GND
MTV-V
V1-V
V3-V
V2-V
STV-V
V1-Y
V2-Y
V1-C
V2-C
MTV-L
V1-L
V3-L
STV-L
V2-L
MTV-R
V1-R
V3-R
STV-R
V2-R
1
2
3
4 5
6
7
8
OUT1
IN1
OUT2
V+
V -
IN1 IN2
IN2
-
+
+
-
A BOARD: IC402 BH3868FS
KV-24FV10/25FV10/25FV10C
A BOARD: IC203 MM1313AD
A BOARD: IC202 UPC4558M
TDA8580Q/N1
VP1
3
IN 1
7
VP2
15
IN 2
8
+
-
+
-
60
k
60
k
V/l
V/l
+
-
OA
+
-
OA
OUT 1 +
OUT 2 -
1
4
45 k
45 k
Vpx
30 k
BUFFER
IN 4
IN 5
12
+
-
60
k
60
k
V/l
+
-
OA
+
-
OA
OUT 3 -
OUT 4 +
14
17
45 k
45 k
11
BUFFER
BUFFER
45
k
45
k
Vpx
+
-
V/l
MUTE
13
STANDBY
5 DIAG
6
DIAGNOSTIC
INTERFACE
IN 3
10
PGND1
2
PGND2
16
9
A BOARD: IC404 TDA8580Q/N1 A BOARD: IC301 CXA2131S
A BOARD IC BLOCK DIAGRAMS
Inv. Input
Non-Inv. Input
1
7
6 2 3
Supply
Voltage
Output
State Supply
Flyback
Generator
FLYBACK
GENERATOR
5 Output
4
Gnd
-
Power
Amplifier
+
THERMAL
PROTECTION
TDA8172
A BOARD IC541 TDA8172
853 6 A Pinouts.p65 3/3/99, 2:02 PM 1