31
32
33
34
5-1. BLOCK DIAGRAMS (1)
TO PICTURE TUBE
HV
TO C BOARD
FV
1
5
RELAY
RY601
3
2
1
CN6620
CN6700
1
2
CN6700
RELAY
RY602
MAIN RECT
D6604
T6601
1
7
6
3
2
5
4
14
12
13
10
8
9
17
15
16
+6.5V RECT
D6619
+10.5V RECT
D6616
+135V RECT
D6617
+4.5V RECT
D6620
+22V RECT
D6618
T6600 PRT
IC603
POWER MODULE
3
1
4
+22V
+135V
+10.5V
+6.5V
+4.5V
IC6654
+5VREG
1
2
IC6667
1
3
7
5
3
4
+5V
1
4
D
S
C
IC6651
T6651
IC6604
REG OUT
7
5
CN6102
14
A5
B7
A9
B9
B13
A16
B16
B15
A17
B17
A19
B19
A23
A22
B24
B25
A25
B18
E/W
AFC PULSE
EX PARA
RGB AFC
HD IN
DYN FOCUS
VMOD
V PROT
V SAW +
V SAW -
HD2 OUT
HD1 OUT
H SAW
IN PIN
L IN
H CENTER
9
10
13
15
16
17
18
19
H-OUT DRIVE
Q6801
H-OUT DRIVE
Q6802
HDT
T6801
HDT
T6802
H-OUT
Q6803,
Q6804
B20
HP2
A7
HP1
A24
DF DRIVE
A14
IC6801
+
-
1
2
3
7
6
5
Q6805
Q6806
T6805
Q6808
T6804 FBT
5
6
11
1
2
4
7
9
8
10
+15V RECT
D6808
-15V RECT
D6809
-15V
+15V
HV
13
14
FV
DFT
T6852
DF DRIVE
Q6851
1
4
TO C BOARD
CN5601
G2
H
CN6500
6
V+
V-
5
4
3
2
1
H-
H+
V DY
V- DY+
DY ASSY
V- DY-
H DY
H- DY+
H- DY-
1
5
7
IC6700
V-OUT
V OUT
Q6700
CN6611
+200V
+135V
+135V
TO D1 BOARD
CN6601
+135V
1
2
POWER
S7751
F1 ( )
F7626
1
2
1
2
CN7733
CN7633
CN7700
+200V RECT
D6805
CN7611
FOR
CHECK
1
2
AC IN
AC IN
DGC
DGC
DGC
CHECK
DGC CHECK
CN6600
ABL
AMP
Q6809
Q6810
+
-
TO A BOARD
CN1602
AC FILTER FUSE
F3 ( )
POWER SWITCH
D ( )
POWER SUPPLY AND DEFLECTION
2
1
5
1
9
11
13
CN6101
TO A
BOARD
CN1601
Q6667
+5V
STANDBY
OVER CURRENT PROT
OVER VOLTAGE PROT
AC ON/OFF
4
3
2
2
1
RESP
TO A BOARD
CN1700
H6 ( )
IR
RECEIVER
IC7150
RECEIVER
CN7100
SIRCS
+5V STBY
1
7
5
9
11
AV3 L OUT
AV3 R OUT
4
3
2
1
VIDEO
L
R
J7900
CN7103
3
J7925
HEADPHONE
Y/C
HEADPHONE R IN
HEADPHONE L IN
AV3 CHROMA OUT
AV3 LUMINANCE OUT
H5
(
)
HEADPHONE
SVHS AND PHONO
TO A BOARD
CN1703
S7100
S7101
S7102
1
3
KEY 2
KEY 1
TO A BOARD
CN1702
CN7102
CN2301
(1/2)
B20
7
VP IN B
CN2301
(2/2)
A10
21
TO A BOARD
CN1301
Y OUT
BL
(
)
ANALOGUE NOISE
REDUCTION
A20
5
R IN B
B19
6
HP IN B
A19
3
G IN B
B18
1
YSB
A18
4
B IN B
B9
24
VP IN A
A9
25
HP IN A
B8
26
V IN A
B7
27
U IN A
A7
28
Y IN A
VP TEXT IN
RED TEXT IN
HP TEXT IN
GREEN TEXT IN
PORT 2
BLUE TEXT IN
VP SUB IN
HP SUB IN
V SUB IN
U SUB IN
Y SUB IN
20
U OUT
19
V OUT
17
HP OUT
16
VP OUT
FL2300
A2
U MAIN IN
DL2502
10
1
A1
V MAIN IN
DL2501
10
1
IC2302
8
-U IN
17
-U OUT
9
-V IN
19
16
-V OUT
IC2502
VCA
6
CTL 2
3
OUT 1
5
OUT 2
IC2501
VIDEO IN
3
IN 2
7
OUT
2
SW
B14
SCP MAIN IN
IC2503
COMPARATOR
4
A+ IN
12
A OUT
7
B OUT
10
B- IN
9
B+ IN
5
A- IN
IC2505
15
SCL
6
DCA 1
7
DCA 0
14
SDA
A16
SCL
B16
SDA
A4
Y MAIN IN
Y SUB OUT
USUB OUT
V SUB OUT
HP SUB OUT
VP SUB OUT
U MAIN OUT
V MAIN OUT
Y MAIN OUT
B10
B11
A12
B12
B2
B1
A4
TO A BOARD
CN1301
IC2301
Summary of Contents for KV-28FQ75U
Page 36: ...50 49 E R G B OUT CHROMA ...
Page 37: ...51 E PRINTED WIRING BOARD A side E PRINTED WIRING BOARD B side ...
Page 38: ...52 M1 PRINTED WIRING BOARD A side M1 PRINTED WIRING BOARD B side ...
Page 60: ...110 Memo ...
Page 107: ...157 ...